Automotive Connector Terminal – 2177909-1 / DJ625R-0.4A, Ultra-Micro Female Crimp Contact for TE Connectivity High-Density Connectors

Part number 2177909-1 is a TE Connectivity ultra-micro female crimp terminal; DJ625R-0.4A is the Chinese standard equivalent. The TE Connectivity part number format (XXXXXXX-X) identifies this as a TE-manufactured contact. The 0.4A class contact size is used in TE Connectivity’s high-density automotive connector families for ECU, ADAS, and body electronics applications where circuit density requirements exceed what can be achieved with larger pitch contacts.

Key Specifications

• Part Numbers: 2177909-1 (TE Connectivity), DJ625R-0.4A (Chinese standard)
• Contact Type: Female crimp terminal (socket contact)
• Contact Size: Ultra-micro (0.4mm class)
• Wire Range: 0.13mm² (26AWG) maximum
• Current Rating: 2–3A per contact
• Contact Material: Copper alloy, gold-plated
• Application: TE Connectivity high-density ECU and ADAS connector systems

TE Connectivity Ultra-Micro Contacts — Application Context

TE Connectivity supplies ultra-micro contacts for their MULTILOCK, MQS, and similar high-density automotive connector families used across multiple OEM platforms:

• MQS (Micro Quadlock System): TE’s standard high-density automotive connector for ECU and body electronics — used in VW Group, BMW, Mercedes-Benz, and other European OEM vehicles
• MULTILOCK: High-density connector family for Japanese and Korean OEM applications
• ECONOSEAL: Waterproof high-density connector for underbody and engine bay applications

Frequently Asked Questions

What crimp tool is required for 2177909-1 terminals?

TE Connectivity specifies a dedicated micro-crimp tool for 0.4mm class contacts. Cross-reference 2177909-1 in the TE Connectivity catalog (te.com) to identify the required crimp tool part number. Using a standard automotive crimp tool will crush ultra-micro terminals. For professional ECU harness repair, use the TE-specified pneumatic micro-crimp tool.

How do I identify 2177909-1 terminals in my vehicle?

TE Connectivity MQS and MULTILOCK connectors are used throughout European and Asian OEM vehicles. The terminal part number may be stamped on the terminal or listed in the vehicle’s wiring diagram parts list. Cross-reference the connector housing part number in the TE Connectivity catalog to identify the compatible terminal part numbers.

Can I repair ECU connectors with 2177909-1 terminals?

Yes. Individual terminal replacement is the most cost-effective repair for ECU connectors with 1–3 damaged terminals. Follow the vehicle manufacturer’s ECU connector repair procedure: disable the ignition, use a micro extraction tool to remove the damaged terminal, crimp a new terminal, reinsert, and verify with a scan tool after reassembly.

Typical Applications

• European OEM vehicles: ECU and body electronics terminal replacement in TE Connectivity MQS connectors
• VW/BMW/Mercedes: High-density connector terminal repair
• ADAS systems: Sensor and processor connector terminal replacement
• Automotive workshops: Workshop stock for TE Connectivity ultra-micro terminal repairs

Package Contents

Automotive ultra-micro crimp terminals, 2177909-1 / DJ625R-0.4A (quantity as selected). Connector housing not included.