Amphenol ICC 77312-151LF Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 77312-151LF is an active rectangular connector header designed for through-hole board-to-board applications. This 5-position, 0.100" (2.54mm) pitch connector features male pins with gold-plated mating contacts and tin-plated posts, suitable for applications requiring 3A per contact current capacity. The part is RoHS Compliant and carries UL94 V-0 flammability rating. Substitute parts are necessary when addressing inventory constraints, packaging requirements, or specific mechanical and electrical parameter variations across equivalent connector families.

Substiute Parts

77312-151LF

Amphenol ICC (FCI)In Stock: 110777312-151LF Datasheet

Current PartRFQ

800-10-005-10-001000

Mill-Max Manufacturing Corp.In Stock: 1304800-10-005-10-001000 Datasheet

MFR RecommendedRFQ

800-10-005-10-002000

Mill-Max Manufacturing Corp.In Stock: 2642800-10-005-10-002000 Datasheet

MFR RecommendedRFQ

HTSW-105-07-G-S

Samtec Inc.In Stock: 1492HTSW-105-07-G-S Datasheet

MFR RecommendedRFQ

TS-105-T-A-1

Samtec Inc.In Stock: 992TS-105-T-A-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 77312-151LF is determined by strict alignment of core electrical and mechanical parameters. All substitute parts must maintain the following critical specifications:

• 5-position connector configuration
• 0.100" (2.54mm) mating pitch
• Single-row layout
• Male pin contact type
• Through-hole solder termination
• Board-to-board connectivity style
• Unshrouded design
• Push-pull fastening mechanism
• Moisture Sensitivity Level 1 (Unlimited)
• RoHS compliance status

Variations in contact geometry (square vs. circular), contact material composition (Phosphor Bronze vs. Brass Alloy), insulation material type (Thermoplastic vs. PCT vs. LCP), contact finish specifications, and overall contact length are permissible within the substitute group, provided the core functional parameters remain constant. Operating temperature range, current rating availability, and flammability certification differences are documented for engineering evaluation but do not disqualify substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active product status and RoHS compliance, qualifying them for direct substitution in applications where the 77312-151LF is specified. Selection among substitutes should be based on the following documented factors:

Amphenol ICC 77312-151LF: Retains the widest operating temperature range (-65°C ~ 125°C) and documented current rating (3A per contact). UL94 V-0 flammability certification and Phosphor Bronze contact material with GXT™ gold plating provide established performance characteristics. Suitable for applications requiring maximum temperature margin and specified current capacity.

Mill-Max 800-10-005-10-001000 and 800-10-005-10-002000: Both maintain ROHS3 compliance and MSL 1 rating. Differ in overall contact length (0.438" and 0.385" respectively), affecting mating depth. Circular contact geometry and Brass Alloy material with uniform gold plating on both mating and post surfaces provide alternative contact interface characteristics. Bulk packaging format available.

Samtec HTSW-105-07-G-S: Maintains UL94 V-0 flammability rating and Phosphor Bronze contact material. Liquid Crystal Polymer insulation material and square contact geometry align with the original design approach. Operating temperature range (-55°C ~ 125°C) provides 10°C lower minimum specification. Supports board-to-board or cable connectivity. Bag packaging format.

Samtec TS-105-T-A-1: Tin contact finish on both mating and post surfaces differs from the original gold/tin combination. Tube packaging format. Minimal parameter documentation available; engineering evaluation of contact finish compatibility required for specific applications.

Frequently Asked Questions (FAQ)

Q: Can the Mill-Max 800-10-005-10-002000 be used as a direct replacement for the 77312-151LF?

A: Yes, within the constraints of mechanical fit. The 800-10-005-10-002000 maintains all critical electrical and functional parameters (5-position, 0.100" pitch, through-hole solder termination, push-pull fastening). The overall contact length is 0.385" (9.77mm) compared to 0.445" (11.30mm) on the original part, resulting in 0.060" (1.53mm) shorter mating depth. Verify PCB layout and mating connector depth tolerance before implementation.

Q: What is the difference between the two Mill-Max substitute options?

A: Both Mill-Max parts (800-10-005-10-001000 and 800-10-005-10-002000) share identical electrical specifications and contact material composition. The primary difference is overall contact length: 0.438" (11.12mm) versus 0.385" (9.77mm). This affects the depth of insertion into mating connectors. Select based on PCB-to-mating-connector distance requirements.

Q: Does the Samtec HTSW-105-07-G-S support cable applications?

A: The HTSW-105-07-G-S is specified for board-to-board or cable connectivity, providing flexibility beyond the original 77312-151LF board-to-board designation. This expanded application range does not affect substitution eligibility for standard board-to-board implementations.

Q: How do contact finish differences affect substitution?

A: The 77312-151LF uses gold-plated mating contacts with tin-plated posts. Substitute parts employ varying finish combinations: Mill-Max parts use gold on both surfaces; Samtec HTSW uses gold on both surfaces; Samtec TS uses tin on both surfaces. Contact finish affects corrosion resistance and mating force characteristics. Verify compatibility with mating connector contact materials and environmental exposure conditions.

Q: Are there operating temperature limitations when substituting?

A: The original 77312-151LF operates from -65°C to 125°C. The Samtec HTSW-105-07-G-S operates from -55°C to 125°C, providing 10°C lower minimum temperature specification. Mill-Max parts do not specify operating temperature ranges. For applications requiring -65°C operation, the original part or HTSW-105-07-G-S with documented -55°C minimum should be evaluated against actual system requirements.

Q: What packaging formats are available?

A: The 77312-151LF is supplied in bag packaging (1086 pcs in stock). Substitute options include bulk packaging (Mill-Max 800 series), bag packaging (Samtec HTSW), and tube packaging (Samtec TS). Packaging selection affects handling, storage, and automated assembly compatibility. Verify compatibility with procurement and assembly processes.

Q: Is the Samtec TS-105-T-A-1 suitable for high-reliability applications?

A: The TS-105-T-A-1 maintains RoHS3 compliance and MSL 1 rating. However, minimal technical parameter documentation is provided compared to other substitutes. Tin contact finish on both mating and post surfaces differs from the original gold/tin specification. Engineering evaluation of contact finish performance and long-term reliability characteristics is necessary for high-reliability applications.