TE Connectivity 770971-1 Rectangular Connector Header – Equivalent & Substitute Parts

Part Overview

The TE Connectivity 770971-1 is a shrouded rectangular connector header designed for through-hole, right-angle board-to-cable/wire applications. This 10-position, 2-row header operates within the Mini-Universal MATE-N-LOK series and features a 0.163" (4.14mm) pitch with solder termination and locking ramp fastening. The connector maintains an operating temperature range of -20°C to 85°C and supports a 600VAC voltage rating. The part is currently active in production with 25,042 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained while offering alternative packaging, compliance status, or contact finish specifications.

Substiute Parts

770971-1

TE Connectivity AMP ConnectorsIn Stock: 25100770971-1 Datasheet

Current PartRFQ

1-770971-0

TE Connectivity AMP ConnectorsIn Stock: 20991-770971-0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 1-770971-0 is functionally equivalent to the main part 770971-1 based on the following critical parameters that determine substitutability:

Electrical Compatibility Parameters:

• Identical pitch spacing (0.163" / 4.14mm)
• Identical voltage rating (600VAC)
• Identical operating temperature range (-20°C ~ 85°C)
• Identical number of positions and rows (10 positions, 2 rows)

Mechanical Compatibility Parameters:

• Identical connector type (Header)
• Identical contact type (Male Pin)
• Identical mounting configuration (Through Hole, Right Angle)
• Identical shrouding design (Shrouded - 4 Wall)
• Identical termination method (Solder)
• Identical fastening type (Locking Ramp)
• Identical insulation material (Polyamide/Nylon)
• Identical flammability rating (UL94 V-0)

Differences Between Parts:

• Contact finish specification: 770971-1 uses Tin-Lead; 1-770971-0 uses Tin
• Packaging: 770971-1 is standard packaging; 1-770971-0 is bulk packaging
• RoHS compliance: 770971-1 is non-compliant; 1-770971-0 is compliant
• REACH status: 770971-1 is REACH Affected; 1-770971-0 is Vendor Undefined

These differences do not affect the core electrical or mechanical function of the connector in standard applications.

Parameter Comparison

Engineering Selection Recommendations

Both 770971-1 and 1-770971-0 are active production parts from TE Connectivity within the Mini-Universal MATE-N-LOK series. Selection between these parts is determined by compliance and packaging requirements rather than electrical or mechanical performance.

770971-1 Selection Criteria:

• Applications requiring standard packaging configurations
• Systems where RoHS non-compliance is acceptable or required
• Designs utilizing Tin-Lead contact finish specifications
• Higher inventory availability (25,042 units in stock)

1-770971-0 Selection Criteria:

• Applications requiring RoHS compliance
• Designs requiring bulk packaging for high-volume production
• Systems where Tin contact finish is specified
• Environments subject to REACH compliance requirements

Both parts maintain identical electrical ratings (600VAC), mechanical dimensions, operating temperature range (-20°C ~ 85°C), and UL94 V-0 flammability certification. The contact finish difference (Tin-Lead versus Tin) does not affect connector function in standard board-to-cable applications. Moisture sensitivity level is identical (MSL 1 – Unlimited) for both parts.

Frequently Asked Questions (FAQ)

Q: Are 770971-1 and 1-770971-0 mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including pitch (0.163" / 4.14mm), mounting type (through-hole right-angle), shrouding design (4-wall), and contact geometry. They are direct mechanical substitutes.

Q: What is the difference between Tin-Lead and Tin contact finishes?

A: The main part 770971-1 uses Tin-Lead contact finish, while substitute 1-770971-0 uses Tin finish. Both maintain 150.0µin (3.81µm) thickness. Tin finish is typically specified for RoHS-compliant applications, while Tin-Lead is used in non-compliant designs. The contact finish does not affect electrical performance in standard applications.

Q: Can I use 1-770971-0 as a direct replacement for 770971-1 in an existing design?

A: Yes, provided your application does not have specific contact finish requirements. The electrical and mechanical parameters are identical. If your design specifies Tin-Lead finish or RoHS non-compliance, verify that the Tin finish of 1-770971-0 is acceptable before substitution.

Q: What does RoHS compliance mean for these connectors?

A: RoHS (Restriction of Hazardous Substances) compliance restricts the use of lead and other hazardous materials. The 770971-1 is RoHS non-compliant due to its Tin-Lead finish. The 1-770971-0 is RoHS compliant with its Tin finish. Select based on your regulatory and application requirements.

Q: Are both parts suitable for the same voltage and temperature applications?

A: Yes. Both 770971-1 and 1-770971-0 are rated for 600VAC and operate across the identical temperature range of -20°C to 85°C. They are electrically equivalent for general-purpose applications.

Q: What is the difference in packaging between these parts?

A: 770971-1 is supplied in standard packaging, while 1-770971-0 is supplied in bulk packaging. Bulk packaging is typically used for high-volume production runs. Inventory availability differs: 770971-1 has 25,042 units in stock versus 2,058 units for 1-770971-0.

Q: Do both parts have the same moisture sensitivity level?

A: Yes. Both 770971-1 and 1-770971-0 are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Can these connectors be used in high-current applications?

A: Current rating for both parts varies by wire gauge. Consult the wire gauge specifications and current tables provided by TE Connectivity to determine maximum current capacity for your specific application.