TE Connectivity 770858-2 Rectangular Connector Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity 770858-2 is a shrouded vertical rectangular connector header from the Mini-Universal MATE-N-LOK series, designed for through-hole board-to-cable/wire applications. This 10-position connector features a 0.163" (4.14mm) pitch configuration with dual-row layout and solder termination. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design and procurement requirements. Substitute parts must maintain identical electrical and mechanical specifications to ensure direct interchangeability without circuit redesign.

Substiute Parts

770858-2

TE Connectivity AMP ConnectorsIn Stock: 1125770858-2 Datasheet

Current PartRFQ

1-770858-1

TE Connectivity AMP ConnectorsIn Stock: 32431-770858-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 770858-2 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Connector type (Header)
• Contact type (Male Pin)
• Number of positions (10)
• Number of rows (2)
• Pitch - mating (0.163" / 4.14mm)
• Row spacing - mating (0.163" / 4.14mm)
• Voltage rating (600VAC)
• Operating temperature range (-20°C ~ 105°C)

Mechanical Compatibility Parameters:

• Mounting type (Through Hole)
• Shrouding configuration (Shrouded - 4 Wall)
• Termination method (Solder)
• Insulation material (Polyamide/Nylon)
• Flammability rating (UL94 V-0)

Functional Compatibility Parameters:

• Series designation (Mini-Universal MATE-N-LOK)
• Style (Board to Cable/Wire)
• Fastening type (Locking Ramp)
• Features (Board Lock)

Substitute parts must match all parameters listed above. Variations in contact finish specifications, packaging format, or product status do not affect functional interchangeability in the application circuit.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 1-770858-1 is a direct functional substitute for the obsolete 770858-2. All critical electrical and mechanical parameters are identical, ensuring pin-for-pin compatibility and direct board-level interchangeability.

Product Status Consideration: The 770858-2 is classified as obsolete. The 1-770858-1 maintains active product status with TE Connectivity, providing assured long-term availability and supply chain continuity for new production and design revisions.

Compliance Advantage: The 1-770858-1 is ROHS3 compliant, whereas the 770858-2 is RoHS non-compliant. For applications subject to RoHS directives or customer compliance requirements, the 1-770858-1 is the appropriate selection.

Contact Finish Specification: The 1-770858-1 features a reduced mating contact finish thickness (30.0µin versus 150.0µin) and tin post finish (versus tin-lead). These variations do not affect electrical performance or mechanical function. The post contact finish thickness remains equivalent at 150.0µin for both parts.

Inventory Availability: The 1-770858-1 is available in higher stock quantities (3161 pieces) compared to the 770858-2 (1066 pieces), supporting procurement reliability.

Frequently Asked Questions (FAQ)

Q: Can the 1-770858-1 be used as a direct replacement for the 770858-2 in existing designs?

A: Yes. The 1-770858-1 is functionally equivalent to the 770858-2 across all critical electrical and mechanical parameters. Pin count, pitch, voltage rating, operating temperature, mounting configuration, and termination method are identical. No circuit redesign or board layout modification is required.

Q: What is the significance of the contact finish differences between these parts?

A: The 770858-2 features tin-lead post finish with 150.0µin mating contact thickness, while the 1-770858-1 features tin post finish with 30.0µin mating contact thickness. These variations do not affect electrical conductivity, mating force, or signal integrity. The differences reflect manufacturing process updates and environmental compliance evolution.

Q: Why is the 770858-2 classified as obsolete?

A: Obsolescence typically results from product line consolidation, manufacturing process updates, or compliance requirement changes. The 1-770858-1 represents the current active equivalent within the Mini-Universal MATE-N-LOK series.

Q: Does the RoHS compliance difference affect interchangeability?

A: No. RoHS compliance status does not affect electrical or mechanical interchangeability. However, for applications subject to RoHS directives or customer specifications requiring RoHS compliance, the 1-770858-1 (ROHS3 compliant) is the required selection.

Q: Are there packaging differences between these parts?

A: The 770858-2 packaging format is not specified in available documentation. The 1-770858-1 is supplied in bulk packaging. Packaging format does not affect connector function or performance in the application circuit.

Q: What is the current availability status of the 770858-2?

A: The 770858-2 is obsolete and available only through existing inventory channels. Current stock is reported at 1066 pieces. For new production requirements, the 1-770858-1 is the recommended selection due to active product status and higher inventory availability (3161 pieces).

Q: Are both parts rated for the same voltage and temperature operating range?

A: Yes. Both the 770858-2 and 1-770858-1 are rated for 600VAC voltage and -20°C to 105°C operating temperature range. They are functionally equivalent for all standard industrial and commercial applications within these specifications.