Omron G8b-201-01 [upd] -
The Omron G8B-201-01 is a specialized automotive relay primarily recognized for its role as an OEM (Original Equipment Manufacturer) turn signal flasher unit for various vintage and modern Honda motorcycles. While it is a relatively small component, it is vital for the safe operation of a vehicle's signaling system. Overview of the Omron G8B-201-01
The G8B-201-01 is a 12V DC flasher relay manufactured by Omron, a leader in electronic components. In the automotive world, it is often cross-referenced with the Honda part number 38301-MF8-771.
This relay is designed to control the rhythmic flashing of turn signals. It is often housed in a protective rubber mount to shield it from the vibrations inherent in motorcycle operation. Key Specifications
While specific datasheets for discontinued or legacy OEM-only parts like the G8B-201-01 can be rare, its primary characteristics align with standard automotive relay standards: Operating Voltage: 12V DC.
Terminals: Typically features a 3-pin configuration ("mini faston" style) used for input, output, and ground.
Manufacturer: Omron, specifically for Honda's motorcycle division.
Interchangeability: It is often considered interchangeable with other flasher units like the Mitsuba FR-3303. Common Vehicle Applications
The Omron G8B-201-01 was a staple in many Honda motorcycles from the 1980s through the early 2000s. Owners of the following models frequently seek this specific relay for repairs:
Honda VF series: Such as the 1985 VF1100S Sabre and V65 Magna.
Honda Shadow series: Including the Shadow Spirit 750 (2001–2007).
Honda CBR series: Notably the CBR 600 F4 and various Hornet models.
Honda Scooters: Like the Honda Pantheon 125/150 (1998–2002) and Silverwing. Symptoms of a Failing Relay
If you are troubleshooting your motorcycle's electrical system, a faulty G8B-201-01 relay usually manifests in a few specific ways:
Non-responsive signals: The turn signals do not light up at all when the switch is engaged.
Solid lights: The signals turn on but stay illuminated without flashing.
Irregular flashing: The signals flash much faster or slower than usual (often a sign of a load mismatch or internal component failure). Sourcing and Availability
Because this is an older OEM part, you will most likely find the Omron G8B-201-01 through specialty parts retailers or second-hand marketplaces:
Used/OEM Surplus: Retailers like Hooprider Parts often stock tested, used units for vintage restorations.
Online Marketplaces: eBay is a reliable source for both new-old-stock and pulled parts from salvaged bikes.
Modern Alternatives: Some riders replace this relay with modern LED-compatible flashers if they have upgraded their incandescent bulbs to LEDs, as the original G8B-201-01 is designed for standard bulb resistance. Honda Omron Turn Signal Flasher Relay G8b-201-01 - eBay
Omron G8B-201-01: A Comprehensive Review of the Highly Versatile Relay Module omron g8b-201-01
The Omron G8B-201-01 is a highly versatile relay module that has gained significant attention in the industrial automation and control systems market. As a leading manufacturer of automation and control components, Omron has consistently delivered high-quality products that cater to the diverse needs of various industries. In this article, we will provide an in-depth review of the Omron G8B-201-01 relay module, exploring its features, applications, and benefits.
Introduction to the Omron G8B-201-01
The Omron G8B-201-01 is a power relay module designed to provide reliable and efficient switching of high-current loads. It features a compact and lightweight design, making it an ideal solution for applications where space is limited. The module operates on a 12VDC or 24VDC power supply, making it compatible with a wide range of industrial control systems.
Key Features of the Omron G8B-201-01
The Omron G8B-201-01 relay module boasts several impressive features that make it a popular choice among engineers and system designers. Some of the key features include:
- High switching capacity: The module can switch high-current loads of up to 20A, making it suitable for applications that require reliable control of heavy machinery and equipment.
- Compact design: The module's compact size (29mm x 25mm x 16mm) allows for easy installation in control panels and cabinets, even in space-constrained environments.
- High insulation resistance: The module features a high insulation resistance of 100MΩ min., ensuring reliable operation and minimizing the risk of electrical shock or equipment damage.
- Wide operating temperature range: The module can operate in temperatures ranging from -40°C to 85°C, making it suitable for use in harsh industrial environments.
Applications of the Omron G8B-201-01
The Omron G8B-201-01 relay module is designed to cater to a wide range of industrial automation and control applications. Some of the common applications include:
- Industrial machinery control: The module can be used to control heavy machinery and equipment, such as pumps, motors, and conveyor belts.
- Power supply control: The module can be used to control power supplies, ensuring reliable operation and efficient management of power distribution.
- Automotive systems: The module can be used in automotive applications, such as control of lights, wipers, and other accessories.
- Medical equipment: The module can be used in medical equipment, such as patient monitoring systems and medical imaging devices.
Benefits of Using the Omron G8B-201-01
The Omron G8B-201-01 relay module offers several benefits to engineers, system designers, and end-users. Some of the key benefits include:
- Reliability and durability: The module is designed to provide reliable operation and withstand harsh industrial environments.
- Flexibility and versatility: The module's compact design and wide operating temperature range make it suitable for use in a variety of applications.
- Easy installation and maintenance: The module's compact size and simple design make it easy to install and maintain, reducing downtime and increasing productivity.
- Cost-effectiveness: The module's high switching capacity and reliability make it a cost-effective solution for industrial automation and control applications.
Technical Specifications of the Omron G8B-201-01
The following are the technical specifications of the Omron G8B-201-01 relay module:
- Coil voltage: 12VDC or 24VDC
- Coil current: 12mA (12VDC), 6mA (24VDC)
- Contact rating: 20A (resistive), 15A (inductive)
- Contact voltage: 250VAC, 30VDC
- Insulation resistance: 100MΩ min.
- Operating temperature range: -40°C to 85°C
- Dimensions: 29mm x 25mm x 16mm
Conclusion
The Omron G8B-201-01 relay module is a highly versatile and reliable solution for industrial automation and control applications. Its compact design, high switching capacity, and wide operating temperature range make it suitable for use in a variety of harsh environments. With its technical specifications and benefits, the Omron G8B-201-01 is an ideal choice for engineers, system designers, and end-users looking for a cost-effective and efficient solution for controlling high-current loads.
Recommendations
Based on the features and benefits of the Omron G8B-201-01 relay module, we recommend it for use in:
- Industrial automation and control systems
- Power supply control applications
- Automotive systems
- Medical equipment
Future Developments
As the industrial automation and control systems market continues to evolve, Omron is committed to developing innovative solutions that cater to the changing needs of various industries. Future developments may include:
- Increased switching capacity: Omron may develop relay modules with higher switching capacities to cater to applications that require control of even heavier machinery and equipment.
- Enhanced connectivity options: Omron may develop relay modules with enhanced connectivity options, such as wireless communication protocols, to enable seamless integration with modern control systems.
In conclusion, the Omron G8B-201-01 relay module is a highly versatile and reliable solution for industrial automation and control applications. Its technical specifications, features, and benefits make it an ideal choice for engineers, system designers, and end-users looking for a cost-effective and efficient solution for controlling high-current loads.
1. Product Identification
Before proceeding, verify the part number on the relay body.
- Series: G8B (Miniature Power Relay)
- Model: G8B-201-01
- G8B: Basic Series
- 2: Number of poles (1 Form C / SPDT)
- 01: Coil voltage designation (Typically 12V DC, see specs below)
Omron G8B-201-01 – Automotive PCB Relay
1. General Description The Omron G8B series is a compact, high-capacity PCB (printed circuit board) relay designed primarily for automotive applications (12V DC systems). The G8B-201-01 is a specific variant with single-pole, double-throw (SPDT) contacts. The Omron G8B-201-01 is a specialized automotive relay
2. Key Specifications
| Parameter | Value | | :--- | :--- | | Contact Form | 1 Form C (SPDT – Break before make) | | Coil Voltage | 12 VDC | | Coil Power Consumption | Approx. 1.6 W (typical) | | Contact Current Rating | 30A at 14 VDC (resistive load) | | Maximum Switching Current | 35A (momentary) | | Contact Material | Silver alloy (AgSnO, AgNi) | | Initial Contact Resistance | ≤ 50 mΩ | | Operate Time | ≤ 10 ms | | Release Time | ≤ 5 ms | | Insulation Resistance | ≥ 100 MΩ (at 500 VDC) | | Dielectric Strength | 500 VAC for 1 min (coil to contacts) | | Ambient Temperature | -40°C to +85°C (operating) |
3. Physical Dimensions
- Height: ~15.5 mm
- Width: ~12.5 mm
- Length: ~15.9 mm
- Mounting: Through-hole (PCB)
- Weight: ~6 grams
4. Pin Configuration (Top view)
- Pin 1: Coil (+)
- Pin 2: Coil (-)
- Pin 3: Common (COM)
- Pin 4: Normally Open (NO)
- Pin 5: Normally Closed (NC)
5. Typical Applications
- Automotive electronics (headlights, fog lamps, horns, cooling fans)
- Electric power steering
- Battery management systems
- Industrial control equipment requiring high current switching at 12V
6. Important Features
- Sealed construction (available in flux-tight or fully sealed versions – check suffix). The G8B-201-01 is typically flux-protected.
- High inrush current capability (up to 80A for 1 ms).
- Small footprint for high-density PCB mounting.
7. Cross-Reference / Equivalent Parts
- Tyco / TE Connectivity: V23134-A52-X5
- Panasonic: CM1-R-12V
- Bosch: 0 332 209 151
8. Ordering Information The "01" suffix in G8B-201-01 may indicate a specific coil resistance value or contact material variation. Always check the full marking on the relay case.
9. Datasheet Source The official datasheet is available from Omron Electronic Components (document reference: G8B datasheet, EN 2002-06). For exact coil resistance and detailed derating curves, refer to the manufacturer's PDF.
If you need the official Omron datasheet PDF or a replacement suggestion, let me know.
The Omron G8B-201-01 is a Compact PCB Power Relay. While it has several standard characteristics, its "good features" are specifically tailored for applications requiring high reliability in a small footprint, particularly in power supply applications.
Here are the standout good features of this relay:
Omron G8B-201-01 – High-Capacity PCB Relay
1. Product Overview The Omron G8B-201-01 is a single-pole, single-throw (SPST-NO) high-capacity power relay designed for PCB mounting. It is part of the G8B series, known for its ability to switch heavy loads in a compact package, making it suitable for automotive, industrial, and power supply applications.
2. Key Specifications
| Parameter | Value | | --- | --- | | Contact Form | 1A (SPST-NO) | | Rated Load | 20 A at 14 VDC (resistive) | | Max Switching Voltage | 75 VDC, 30 VAC | | Max Switching Current | 20 A | | Coil Voltage | 12 VDC | | Coil Power Consumption | Approx. 0.96 W (80 mA at 12V) | | Must Operate Voltage | ≤ 70% of nominal coil voltage | | Must Release Voltage | ≥ 10% of nominal coil voltage | | Contact Resistance | ≤ 30 mΩ (initial) | | Insulation Resistance | ≥ 100 MΩ (at 500 VDC) | | Dielectric Strength | 500 VAC, 50/60 Hz for 1 min (between coil & contacts) | | Operate Time | ≤ 10 ms | | Release Time | ≤ 5 ms | | Mechanical Life | ≥ 10⁷ operations | | Electrical Life | ≥ 10⁵ operations (at rated load) | | Ambient Temperature | -30°C to +85°C (no freezing) | | Mounting | Through-hole PCB terminals |
3. Physical Characteristics
- Dimensions (L x W x H): Approx. 20.5 x 10.5 x 20.0 mm
- Weight: Approx. 9 g
- Terminal layout: Standard DIP pin configuration for easy PCB insertion
4. Features
- High switching capacity (20 A) in a small footprint
- Sealed construction (flux protection) to prevent contamination during soldering and cleaning
- Low contact resistance for efficient power transfer
- Suitable for DC loads, especially automotive (headlights, horns, fans, motors) and DC power control
5. Common Applications
- Automotive electronics (e.g., power windows, door locks, seat heaters)
- Battery management systems
- Industrial control equipment
- Power supplies and inverters
- Home appliances (microwave ovens, air conditioners)
6. Notes for Designers
- Ensure coil driving voltage stays within 70–110% of nominal rating for reliable operation.
- Use a flyback diode across the coil if driven by a transistor or microcontroller.
- Because it is SPST-NO, it cannot be used for normally closed or changeover functions.
- For switching AC loads, verify that load current and voltage remain within specified limits (30 VAC max).
7. Replacement & Cross-Reference The G8B-201-01 is an older part number. Omron may recommend newer series like G8N or G8Q depending on availability. Always check the latest datasheet from Omron for current replacements. Cross-reference candidates (electrical equivalent, check pinout) include: High switching capacity : The module can switch
- Omron G8N-1A-12DC
- TE Connectivity (Tyco) V23076 series (with comparable 20A rating)
8. Manufacturer
Omron Corporation – Electronic Components Division
Datasheet reference: G8B series datasheet (EN)
Omron G8B-201-01 is a specialized automotive relay primarily used as an indicators flasher relay
. It is commonly found in Honda motorcycles and scooters, including models like the CB, CBR, Hornet, and Silverwing. Core Feature: Precise Blinking Frequency The standout feature of this relay is its controlled blinking frequency , typically set at 85 cycles per minute
. This ensures that turn signals meet standard safety visibility requirements by providing a consistent and rhythmic flashing pattern, regardless of whether the indicators are LED or halogen. Key Specifications Operating Voltage: 12V DC (with a tolerance range of 11V to 15V). Switch Load Capacity: Supports a wide range from 0.1W to 120W , making it versatile for different bulb types. Environmental Durability: Designed to operate in extreme temperatures ranging from -40ºC to +80ºC , which is essential for engine-adjacent mounting. Plug-and-Play Design: Features a standard 3-pin mini-faston
connection, allowing it to directly replace original Honda parts (such as 38301-MF8-771) without wiring modifications. Further Exploration
View purchasing options and original Honda part cross-references on MotoShopItalia Check compatibility for specific bike models on Hoop Rider Parts wiring diagram for this specific relay on a particular vehicle?
The Omron G8B-201-01 is a specialized automotive relay primarily serving as a Turn Signal Flasher Relay for vintage and modern Honda motorcycles. This component is a critical link in a vehicle's electrical system, acting as an electrically controlled switch that regulates the blinking frequency of indicator lights. Functional Role and Importance
In automotive design, relays like the G8B-201-01 allow low-current control circuits to manage high-current loads. Specifically, this model is designed to handle the rapid switching required for turn signals, ensuring they flash at a consistent rate—typically around 85 times per minute. By isolating the high-current path of the signal bulbs from the handlebar switch, the relay prevents switch burnout and allows for the use of thinner, more manageable wiring in the control circuit. Technical Specifications
The G8B-201-01 is built to withstand the demanding environments of a motorcycle, including extreme temperatures and vibrations.
Voltage: Optimized for 12V DC systems with a tolerance range of 11V to 15V.
Switching Load: It supports a broad range from 0.1W up to 120W, making it compatible with various bulb configurations.
Interface: Features a 3-pin (mini faston) connector layout, common in Japanese motorcycle designs.
Temperature Range: Operates reliably from -40ºC to +80ºC, ensuring functionality in both winter and summer conditions. Vehicle Compatibility and Legacy
This specific Omron unit is closely associated with Honda motorcycles and is often cross-referenced with Honda part number 38301-MF8-771. It is a staple component for classic models from the 1980s and 1990s, including: G8NB - Omron
Vibration resistance. Durability. 33Hz 45m/s2. Malfunction (Detecting time: 1ms) 10 to 400Hz 45m/s2. Shock resistance. Durability. OMRON Global
Given the part number format and Omron’s typical naming conventions, this is a high-current PCB-mounted SPDT (Single Pole Double Throw) relay designed primarily for automotive and transportation applications (12V DC systems).
Common Issues and Failure Modes
Even a high-quality Omron relay has a finite life. Here are the typical failure modes for the G8B-201-01:
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Contact Welding: If the relay is used to switch a load that exceeds 25A or a highly inductive motor (e.g., stalled wiper motor), the contacts can micro-weld, leaving the load permanently ON.
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Coil Burnout: Applying more than 16V (e.g., a failing alternator regulator) for extended periods will overheat and open the coil circuit.
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Oxidation: If the plastic seal is compromised (crack from vibration), air enters. Over years, the exposed silver-alloy contacts oxidize, increasing resistance and generating heat.
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Solder Joint Fracture: The G8B-201-01 is heavy. In high-vibration environments (motorcycles, off-road vehicles), solder joints can crack, causing intermittent operation.
Contact Data (Output)
- Contact Form: 1 Form C (SPDT: Single Pole Double Throw)
- Contact Material: Silver alloy (Ag)
- Rated Load (Resistive):
- 20A at 14V DC (Automotive standard)
- 20A at 277V AC (General purpose)
- Maximum Switching Power: 560W (DC) / 5,500VA (AC)
- Contact Resistance: Max 50 mΩ (initial)