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M6351FNS-5(8)-Y, M6351FNL-5(8)-Y, M6351FNS-5(8)-Y(A), M6351FNL-5(8)-Y(A)
HRB
8536909000
| HRB P/N | Mating Tab Thickness | Compatible Insulation Diameter Range | SPQ(pcs) | Detent |
| M6351FNS-5(8)-Y | 6.35x0.8mm | 8.13mm | 1000/reel | Hole |
| M6351FNL-5(8)-Y | 6.35x0.8mm | 8.13mm | 1000/bag | Hole |
| M6351FNS-5(8)-Y(A) | 6.35x0.8mm | 8.13mm | 1000/reel | Dimple |
| M6351FNL-5(8)-Y(A) | 6.35x0.8mm | 8.13mm | 1000/bag | Dimple |
Type: M=Finished
Product Type: 6351=Fully insulated Straight Male Terminal
F=All inclusive insulation
N=Nylon
Packaging method: S=strip L=loose piece
Series: 5=6.35mm(0.250 in.)
Y=Red(12-10 AWG), Ins. Dia, Max: 8.13mm;
Without Suffix (A): Hole Detent; With Suffix (A): Dimple Detent
Current Rating: 24A AC, DC
Voltage Rating: 300V AC, DC
Operating Temperature: -25 ºC to +105 ºC
Material: Housing: Nylon66 UL 94V-2; Terminal: Brass. Tin-plated
Tab Size: 6.35x0.8mm
Applicable wire: AWG12-10(3.31-5.26mm²)
Compatible Insulation Diameter Range: 8.13mm
The insertion force and male terminal: ≤7.8kg
The withdrawal force and male terminal: ≥3.0kg
Line Terminal and the force: ≥34kg
Capacity: Single
Crimp: F-Crimp
Barrel Type: Closed
Terminate to: Wire&cable
With Insulation: Fully insulated
Packing: Strip/Reel, or loose pieces in bag options
- Tin-plated brass for corrosion resistance
- Nylon insulation for high temperature durability
- Secure crimp barrel design for strong wire retention
- Rated for up to 300V applications
HRB 6.35mm 0.250'' AWG12-10 3.31-5.26mm2 Insulated Male Terminal tabs(M6351 series AWG12-10) is usually mating with
M6350 series AWG12-10 Insulated Female Straight Type Terminal Receptacle
M7600 series AWG12-10 Insulated Female Flag Type Terminal Receptacle

This HRB 6.35mm 0.250" insulated female receptacle conforms to global standard specifications and is fully interchangeable with standard quick disconnect terminals used worldwide.
It offers direct replacement capability with matching form, fit, and function for standard wiring systems.
Q: What are the basic parameters of 6.35mm Fully Insulated Male Disconnect Terminal (AWG12-10)?
A: Quick Disconnect Terminal Type : Tabs/Straight type
Wire Size: AWG12-10(3.31-5.26mm²)
Mating Tab Width: 6.35(0.250")
Mating Tab Thickness : 0.8mm
Compatible Insulation Diameter Range: 8.13mm
Q: What are the differences between M6351FNS-5(8)-Y and M6351FNS-5(8)-Y(A) terminals? How to choose the right one?
A: All belong to the M6351FNS 6.35mm fully insulated male straight terminal series.
The coding rules are as follows:
①: 5(8) stands for terminal tab thickness: 0.8mm, both for AWG12-10 wiring with Ins. Dia, Max: 8.13mm;
②: Without suffix (A) adopts Hole Detent structure with strong locking and anti-vibration performance; with suffix (A) adopts Dimple Detent structure for smoother plug and unplug with standard locking force.
Selection guide:
①: Choose Y with no suffix (A) for scenarios requiring firm locking and vibration resistance;
②: Select Y with suffix (A) for applications needing easy insertion and extraction with conventional locking demand;
Q: What is the MOQ for 6.35mm 0.250" Insulated terminal?
A: MOQ: 5000pcs/item.
Q: What is the lead time for 6.35mm 0.250" Insulated terminal?
A: L/T: 3-4 weeks.
Q: What is the maximum temperature rating for this 6.35mm terminal?
A: The maximum temperature rating is 105ºC
Q: What is the difference between 4.75mm and 6.35mm connectors?
A: The difference is the width of the terminal tab. 4.75mm connectors are smaller and used for lighter applications, while 6.35mm
connectors handle higher currents.
Q: How do I choose the correct AWG size?
A: Select the connector based on your wire gauge. This product is designed for AWG12-10 wires, ensuring a proper crimp fit.
Q: Are these connectors insulated?
A: Yes, they feature a fully insulated sleeve to prevent short circuits and improve safety.
Q: What wire size does AWG12-10 support?
A: This terminal fits AWG12-10 wires with a cross-sectional area of 3.31–5.26mm², ideal for high-current and heavy-duty automotive and industrial circuits.
Q: What is the difference between models with and without suffix (A)?
①Without suffix (A):
Adopts a Hole Detent structure. It locks by circular hole engagement, featuring strong retention, anti-disengagement and vibration resistance.
②With suffix (A):
Adopts a Dimple Detent structure. It positions by spring dimple compression, providing smoother insertion and extraction with standard locking force.
Q: What is a 6.35mm male disconnect terminal?
A: 6.35mm male disconnect terminal is a kind of 0.250 inch spade terminal with a 6.35mm tab width.
It is a fully insulated wire-to-connect component made of tin-plated brass and flame retardant nylon, widely mated with 6.35mm female terminals for quick connection and disconnection.
It is commonly used in automotive wiring harnesses, home appliances and industrial equipment for circuit connection, available in different wire gauge ranges of AWG12-10, AWG16-14 and AWG22-18.
Q: Is this terminal suitable for automotive use?
A: Yes, this fully insulated female disconnect terminal is widely used in automotive wiring systems due to its secure connection and
vibration resistance.
Q: What is the difference between mating with straight female terminals and flag female terminals? How to choose the right type?
A: Both straight female terminals and flag female terminals can mate with the same specification male disconnect terminals.
The main differences are installation direction, wiring layout and application scenario:
①: Straight female terminal adopts inline straight structure, with wiring and connection in a straight horizontal direction.
②: Flag female terminal features a right-angle flag design, turning the wiring direction by 90 degrees for side routing and space-saving installation.
③: Electrical performance, current rating and detent locking structure are identical for both types under the same tab size and wire gauge.
Selection guide:
①: Choose straight female terminals for linear wiring, straight-through harness layout and sufficient installation space.
②: Select flag female terminals for limited mounting space, 90° angle routing and compact equipment internal wiring.
③: Keep the same tab width and AWG wire gauge to ensure perfect mating with corresponding male terminals.
Q: Can an AWG12-10 male terminal mate with AWG22-18 or AWG16-14 female terminals?
A: No, they are not interchangeable. AWG12-10, AWG16-14 and AWG22-18 terminals differ in terminal tab thickness, crimp barrel size and inner contact dimension. Mismatched wire gauge terminals cannot achieve proper locking and stable connection, which may cause poor contact and safety risks. Always match male and female terminals with the same specification and wire gauge.
EU RoHS Directive(EU) 2015/863 amending Annex II to Directive 2011/65/EU
End-of Life Vehicles Directive(2000/53/EC)
AfPS GS 2019: 01 PAK-Polycylic Aromatic Hydrocarbons(PAHs)
European Regulation POPs (EU) 2019/1021
European Regulation POPs (EU) 2024/2570
European Regulation POPs (EU) 2025/718
European Regulation POPs (EU) 2023/1608
European Regulation POPs (EU) 2019/1021
European Regulation POPs (EU) 2025/843
European Regulation POPs (EU) 2025/1930
Regulation (EC) Np 1907/2006 concerning the REACH
US California Proposition 65
Safety approvals&certification: UL&cUL
UL Flammability Rating: UL 94V-2

Home Appliances: HVAC systems, refrigerators, washing machines, dishwashers, ovens, and water heaters, providing safe and convenient wiring connections for household electrical components.
Automotive: Vehicle wiring systems, including lighting, sensors, actuators, and EV auxiliary systems, ensuring stable connection even under vibration.
Industrial Controls: Motors, drives, power supplies, PLCs, sensors, and control panels, meeting the needs of industrial low-voltage wiring.
Electronics & Lighting: Power supplies, LED drivers, consumer electronics, and audio equipment, with reliable insulation and quick connection performance.
General Purpose: Suitable for low/medium voltage, small current, and safe quick-disconnect low-voltage power and signal connections, widely used in household appliances, automotive, industrial, and electronic equipment fields.