76308-128LF Equivalent & Substitute Parts

Part Overview

The 76308-128LF is a 28-position receptacle connector manufactured by Amphenol ICC (FCI) in the BergCon® series. This through-hole, gold-plated connector features a 0.100" (2.54mm) pitch and is designed for board-to-board or cable applications with solder termination and push-pull fastening. The part is currently listed as obsolete, making identification of compatible substitutes essential for ongoing system support and procurement planning.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	28
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Insulation Material	Thermoplastic, Polyester, Glass Filled
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution for the 76308-128LF is determined by strict alignment of the following electrical and mechanical parameters:

Connector Type & Contact Configuration: Receptacle with female socket contacts
Position Count & Pitch: 28 positions at 0.100" (2.54mm) mating pitch
Mounting & Termination: Through-hole solder termination with push-pull fastening
Contact Finish: Gold-plated mating surface for corrosion resistance
Insulation Material & Flammability: UL94 V-0 rated thermoplastic or equivalent

The substitute parts 66951-028LF and SSQ-128-01-F-S meet these core substitution criteria. Both are active-status 28-position receptacle connectors with 0.100" pitch, through-hole mounting, solder termination, and gold-plated contacts. Variations in insulation height, contact post length, and material composition are within acceptable mechanical and electrical tolerances for board-level integration.

Parameter Comparison

Parameter	76308-128LF	66951-028LF	SSQ-128-01-F-S
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Samtec Inc.
Product Status	Obsolete	Active	Active
Connector Type	Receptacle	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket	Forked
Number of Positions	28	28	28
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold
Contact Finish Thickness - Mating	30.0µin (0.76µm)	30.0µin (0.76µm)	3.00µin (0.076µm)
Insulation Height	0.335" (8.51mm)	0.325" (8.25mm)	0.335" (8.51mm)
Contact Length - Post	0.135" (3.43mm)	0.142" (3.60mm)	0.104" (2.64mm)
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Material	Thermoplastic, Polyester, Glass Filled	Polyester, Glass Filled	Liquid Crystal Polymer (LCP)
Contact Material	Brass	Brass	Phosphor Bronze
Operating Temperature	Not specified	-65°C ~ 125°C	-55°C ~ 125°C
Voltage Rating	Not specified	1250V	465VAC, 655VDC
RoHS Status	Not specified	RoHS Compliant	ROHS3 Compliant

Engineering Selection Recommendations

66951-028LF is the primary substitute for the 76308-128LF. Both connectors are manufactured by Amphenol ICC (FCI) within compatible product families (BergCon® and Dubox™/BergCon® PV™). The 66951-028LF is active-status with RoHS compliance, wider operating temperature range (-65°C ~ 125°C), and higher voltage rating (1250V). Mechanical dimensions are equivalent within standard tolerances. This part is recommended for direct replacement in new designs and legacy system support.

SSQ-128-01-F-S is an alternative substitute from Samtec Inc. This connector meets all core substitution criteria with active product status and ROHS3 compliance. The forked contact design and liquid crystal polymer insulation provide alternative material properties. The SSQ-128-01-F-S operates across -55°C ~ 125°C with voltage ratings of 465VAC/655VDC. Selection of this part should be based on specific application requirements for contact geometry and insulation material performance.

Frequently Asked Questions (FAQ)

Q: Can the 66951-028LF directly replace the 76308-128LF in existing assemblies?

A: Yes. Both connectors share identical 28-position configuration, 0.100" pitch, through-hole solder termination, and push-pull fastening. Mechanical and electrical parameters are compatible. The 66951-028LF is active-status with enhanced specifications (RoHS compliance, wider temperature range, higher voltage rating).

Q: What is the difference between the 66951-028LF and SSQ-128-01-F-S?

A: Both are 28-position, 0.100" pitch receptacles with gold-plated contacts and push-pull fastening. Key differences include manufacturer (Amphenol ICC vs. Samtec), contact geometry (female socket vs. forked), insulation material (polyester vs. liquid crystal polymer), operating temperature range (-65°C to 125°C vs. -55°C to 125°C), and voltage ratings (1250V vs. 465VAC/655VDC). Selection depends on application-specific requirements for contact type and material performance.

Q: Are there packaging differences between these substitutes?

A: Yes. The 76308-128LF packaging is not specified. The 66951-028LF is supplied in tube packaging, while the SSQ-128-01-F-S is supplied in bulk packaging. Verify packaging requirements for your procurement and assembly processes.

Q: What compliance certifications apply to these connectors?

A: All three connectors carry UL94 V-0 flammability ratings. The 66951-028LF is RoHS Compliant and REACH Affected. The SSQ-128-01-F-S is ROHS3 Compliant. Verify compliance requirements for your specific application and regulatory jurisdiction.

Q: Are there differences in contact post length that affect PCB design?

A: Yes. The 76308-128LF has a contact post length of 0.135" (3.43mm), the 66951-028LF is 0.142" (3.60mm), and the SSQ-128-01-F-S is 0.104" (2.64mm). These variations are within standard through-hole PCB design tolerances but should be verified against your board thickness and solder joint requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message