TE Connectivity 770166-1 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 770166-1 is a shrouded vertical rectangular connector header designed for through-hole mounting in board-to-cable/wire applications. This 2-position Mini-Universal MATE-N-LOK series connector features male pins with a 0.163" (4.14mm) pitch and is rated for 600VAC operation across a temperature range of -20°C to 85°C. The connector incorporates a board lock feature and locking ramp fastening mechanism for secure mating.

The 770166-1 carries a Last Time Buy product status, indicating discontinued manufacturing. Identification of equivalent substitute parts is necessary to maintain design continuity and ensure component availability for ongoing production and field service requirements.

Substiute Parts

770166-1

TE Connectivity AMP ConnectorsIn Stock: 6688770166-1 Datasheet

Current PartRFQ

1-770166-0

TE Connectivity AMP ConnectorsIn Stock: 53861-770166-0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 770166-1 is determined by strict equivalence across the following critical parameters:

Mechanical Compatibility Parameters:

• Connector type (Header)
• Contact type (Male Pin)
• Number of positions (2)
• Number of rows (1)
• Pitch - mating (0.163" / 4.14mm)
• Mounting type (Through Hole)
• Shrouding configuration (Shrouded - 4 Wall)
• Fastening type (Locking Ramp)
• Termination method (Solder)

Electrical Compatibility Parameters:

• Voltage rating (600VAC)
• Operating temperature range (-20°C ~ 85°C)
• Material flammability rating (UL94 V-0)

Series Designation:

• Mini-Universal MATE-N-LOK series

The substitute part 1-770166-0 maintains full mechanical and electrical equivalence across all critical parameters. Differences in contact finish composition (Tin-Lead versus Tin) and regulatory compliance status do not affect functional interchangeability in the specified application envelope.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 1-770166-0 is a direct functional substitute for the 770166-1 across all mechanical and electrical parameters specified for board-to-cable/wire connector applications.

Product Status Consideration: The 770166-1 carries Last Time Buy status, indicating end-of-life manufacturing. The 1-770166-0 maintains Active product status with confirmed inventory availability (5300 pieces in stock), ensuring supply continuity for new designs and field service applications.

Regulatory Compliance: The 1-770166-0 achieves ROHS3 compliance, whereas the 770166-1 is RoHS non-compliant. For applications subject to RoHS regulations or customer requirements mandating RoHS compliance, the 1-770166-0 provides enhanced regulatory alignment.

Contact Finish Specification: The primary technical difference between these parts is the contact finish composition. The 770166-1 specifies Tin-Lead finish on both mating and post contacts, while the 1-770166-0 specifies Tin finish. Both finishes maintain identical thickness specifications (150.0µin / 3.81µm) and deliver equivalent electrical performance and mating reliability within the specified operating envelope.

Interchangeability: Both connectors are manufactured by TE Connectivity within the Mini-Universal MATE-N-LOK series, share identical base product number 770166, and maintain full mechanical and electrical compatibility. Direct substitution is supported without design modification.

Frequently Asked Questions (FAQ)

Q: Can the 1-770166-0 be used as a direct replacement for the 770166-1 in existing designs?

A: Yes. The 1-770166-0 maintains identical mechanical dimensions, electrical ratings, and functional specifications across all critical parameters. Direct substitution is supported without PCB layout or mating connector modifications.

Q: What is the significance of the contact finish difference between Tin-Lead and Tin?

A: Both finishes provide equivalent electrical conductivity and contact reliability within the specified operating temperature range (-20°C to 85°C) and voltage rating (600VAC). The Tin finish in the 1-770166-0 reflects modern manufacturing practices and supports RoHS3 compliance. Contact finish thickness remains identical at 150.0µin (3.81µm) for both parts.

Q: Why is the 770166-1 marked as Last Time Buy?

A: Last Time Buy status indicates TE Connectivity has discontinued manufacturing of this part number. The 1-770166-0 is the active equivalent offering continued supply and support.

Q: Are there any inventory or lead time advantages to selecting the 1-770166-0?

A: The 1-770166-0 carries Active product status with 5300 pieces confirmed in stock, compared to the 770166-1 Last Time Buy status. Active status ensures standard lead times and ongoing availability for production and service requirements.

Q: Does the RoHS3 compliance of the 1-770166-0 affect electrical performance?

A: No. RoHS3 compliance reflects the elimination of restricted substances in manufacturing and does not alter electrical performance, voltage rating, current capacity, or operating temperature specifications. Both parts deliver identical electrical characteristics.

Q: Are both parts suitable for the same board-to-cable/wire applications?

A: Yes. Both the 770166-1 and 1-770166-0 are specified for general-purpose board-to-cable/wire applications with identical shrouding (4-wall), fastening (locking ramp), and mounting (through-hole solder) configurations.

Q: What is the mating pitch specification for these connectors?

A: Both connectors feature a mating pitch of 0.163" (4.14mm), ensuring compatibility with corresponding receptacle connectors in the Mini-Universal MATE-N-LOK series.

Q: Are there any environmental or storage differences between these parts?

A: Both parts carry identical Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no special moisture control requirements during storage or handling.