TE Connectivity 770859-1 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 770859-1 is a shrouded vertical rectangular connector header from the Mini-Universal MATE-N-LOK series. This through-hole mounted component features 15 positions arranged in 3 rows with 0.163" (4.14mm) pitch spacing, designed for board-to-cable/wire applications. The connector utilizes male pin contacts with tin-lead finish and includes board lock features for secure mating. The part is currently active in production with 1034 units in stock. Equivalent and substitute parts are identified to provide procurement flexibility, accommodate supply chain variations, and address specific compliance or packaging requirements.

Substiute Parts

770859-1

TE Connectivity AMP ConnectorsIn Stock: 1139770859-1 Datasheet

Current PartRFQ

1-770859-0

TE Connectivity AMP ConnectorsIn Stock: 24141-770859-0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 770859-1 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector Type: Header
• Contact Type: Male Pin
• Number of Positions: 15
• Number of Rows: 3
• Pitch - Mating: 0.163" (4.14mm)
• Row Spacing - Mating: 0.163" (4.14mm)
• Mounting Type: Through Hole
• Shrouding: Shrouded - 4 Wall
• Termination: Solder
• Voltage Rating: 600VAC
• Operating Temperature Range: -20°C ~ 85°C
• Material Flammability Rating: UL94 V-0
• Series: Mini-Universal MATE-N-LOK

Allowable Variations:

• Packaging format (tape/reel versus bulk)
• Contact finish composition (tin-lead versus tin)
• RoHS compliance status
• Inventory availability

The substitute part 1-770859-0 maintains full electrical and mechanical compatibility with the main part number while differing in contact finish material and RoHS compliance classification.

Parameter Comparison

Engineering Selection Recommendations

770859-1 Selection Criteria:

• Applications requiring tin-lead contact finish specifications
• Projects with RoHS non-compliant material requirements
• Standard packaging format requirements
• Current inventory availability of 1034 units

1-770859-0 Selection Criteria:

• Applications requiring RoHS compliance certification
• Projects with tin contact finish specifications
• Bulk packaging format requirements
• Higher inventory availability (2355 units) for volume procurement
• Environmental or regulatory mandates requiring RoHS-compliant components

Both parts maintain identical electrical performance, mechanical dimensions, and thermal operating characteristics. Selection between these parts is determined by compliance requirements, contact finish specifications, and packaging format needs rather than functional capability.

Frequently Asked Questions (FAQ)

Q: Are the 770859-1 and 1-770859-0 connectors mechanically interchangeable?

A: Yes. Both connectors share identical mechanical dimensions, mounting specifications, shrouding configuration, and board lock features. They mount identically in through-hole applications with 0.163" (4.14mm) pitch spacing.

Q: What is the difference between tin-lead and tin contact finishes?

A: The 770859-1 features tin-lead contact finish, while the 1-770859-0 features tin contact finish. Both finishes provide equivalent electrical conductivity and contact resistance at 150.0µin (3.81µm) thickness. The primary distinction is material composition and RoHS compliance status.

Q: Can I use the 1-770859-0 as a direct replacement for the 770859-1?

A: The 1-770859-0 is electrically and mechanically equivalent to the 770859-1. Selection depends on compliance requirements. If your application requires RoHS compliance, the 1-770859-0 is the appropriate selection. If tin-lead finish is specifically required, the 770859-1 is the correct part.

Q: What does RoHS compliance mean for these connectors?

A: RoHS (Restriction of Hazardous Substances) compliance indicates the component meets European Union directives restricting specific hazardous materials. The 1-770859-0 is RoHS compliant; the 770859-1 is not. Applications subject to RoHS regulations require the 1-770859-0.

Q: Are there packaging differences between these parts?

A: Yes. The 770859-1 uses standard packaging, while the 1-770859-0 is supplied in bulk packaging. Both contain identical connector components; packaging format differs only for handling and distribution purposes.

Q: What is the voltage and temperature rating for both parts?

A: Both the 770859-1 and 1-770859-0 are rated for 600VAC operation across an operating temperature range of -20°C to 85°C. Thermal and electrical specifications are identical.

Q: Do both connectors support the same current capacity?

A: Yes. Both connectors support current ratings that vary by wire gauge. Current capacity is determined by the wire gauge used in the mating cable assembly, not by the connector itself.

Q: What is the board lock feature?

A: The board lock feature on both connectors provides mechanical retention and prevents accidental disconnection during mating and unmating cycles. This feature is identical on both the 770859-1 and 1-770859-0.

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

A: Both connectors operate within the -20°C to 85°C temperature range. Applications requiring operation outside this range require alternative connector designs.

Q: What is the moisture sensitivity level (MSL) for these parts?

A: Both the 770859-1 and 1-770859-0 have an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.