Amphenol ICC 77311-402-09LF Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 77311-402-09LF is a rectangular connector header designed for through-hole mounting applications. This 9-position, single-row connector operates at 0.100" (2.54mm) pitch and is part of the BERGSTIK® series. The part is currently in active product status with 800 units in stock. Equivalent and substitute parts are identified for applications requiring alternative sourcing, inventory management, or specific compliance requirements.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	9
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Current Rating	3A per Contact
Operating Temperature	-65°C ~ 125°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 77311-402-09LF is determined by the following critical parameters: 9-position configuration, 0.100" (2.54mm) mating pitch, male pin contact type, through-hole solder termination, 3A current rating per contact, and UL94 V-0 flammability rating. All identified substitute parts meet these core electrical and mechanical requirements.

Variations in contact material, insulation material, contact finish composition, and post length do not prevent functional substitution when mating with standard 0.100" pitch receptacles. Operating temperature range differences and RoHS compliance status are noted for design consideration but do not preclude substitution based on electrical compatibility.

Parameter Comparison

Parameter	77311-402-09LF (Amphenol ICC)	4-103741-0-09 (TE Connectivity)	5-146278-9 (TE Connectivity)	5-146280-9 (TE Connectivity)	PBC09SAAN (Sullins)	PEC09SAAN (Sullins)
Manufacturer	Amphenol ICC	TE Connectivity AMP	TE Connectivity AMP	TE Connectivity AMP	Sullins Connector Solutions	Sullins Connector Solutions
Connector Type	Header	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway
Number of Positions	9	9	9	9	9	9
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Current Rating (Amps)	3A per Contact	3A	3A	3A	3A	3A
Operating Temperature	-65°C ~ 125°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 125°C	-65°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Contact Material	Phosphor Bronze	Phosphor Bronze	Copper Alloy	Copper Alloy	Phosphor Bronze	Phosphor Bronze
Insulation Material	Thermoplastic	Thermoplastic	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
Contact Finish - Mating	Tin	Tin-Lead	Tin	Gold	Gold	Tin
RoHS Status	RoHS Compliant	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Obsolete	Active	Active	Active	Active
Inventory (Pcs)	800	1340	1757	5290	2973	1413

Engineering Selection Recommendations

Primary Substitutes (Active Status, RoHS Compliant):

5-146280-9 and PBC09SAAN are the preferred substitutes. Both parts maintain active product status and full RoHS compliance. The 5-146280-9 offers gold mating contact finish and higher inventory availability (5290 units). The PBC09SAAN provides matching operating temperature range (-65°C ~ 125°C) and phosphor bronze contact material identical to the primary part.

Secondary Substitutes (Active Status, Compliance Considerations):

5-146278-9 and PEC09SAAN are functionally compatible alternatives. Both are active products with ROHS3 compliance. The 5-146278-9 uses tin mating finish with copper alloy contacts. The PEC09SAAN matches the primary part's tin mating finish and phosphor bronze contact material while offering full operating temperature range compatibility.

Not Recommended for New Designs:

4-103741-0-09 is obsolete and RoHS non-compliant. This part uses tin-lead contact finish and operates at reduced maximum temperature (-65°C ~ 105°C). Use only when legacy system compatibility is mandatory.

Frequently Asked Questions (FAQ)

Q: Can I use 5-146280-9 as a direct replacement for 77311-402-09LF?

A: Yes. Both parts share identical 9-position, 0.100" pitch configuration, male pin contacts, through-hole solder termination, and 3A current rating. The 5-146280-9 is active, RoHS compliant, and has superior inventory availability. The gold mating finish on 5-146280-9 provides enhanced corrosion resistance compared to the tin finish on 77311-402-09LF.

Q: What is the difference between PBC09SAAN and PEC09SAAN?

A: Both Sullins parts are electrically and mechanically equivalent. The primary difference is mating contact finish: PBC09SAAN uses gold finish while PEC09SAAN uses tin finish. Both operate across the full -65°C ~ 125°C temperature range and are ROHS3 compliant.

Q: Why is 4-103741-0-09 listed if it is obsolete?

A: The 4-103741-0-09 is included for reference in legacy system documentation and retrofit scenarios. It remains functionally compatible for mating with standard 0.100" pitch receptacles but should not be specified for new designs due to obsolete status and RoHS non-compliance.

Q: Are there any thermal performance differences between substitute parts?

A: The 77311-402-09LF, PBC09SAAN, and PEC09SAAN all operate to -65°C ~ 125°C. The TE Connectivity parts (4-103741-0-09, 5-146278-9, 5-146280-9) are rated to -65°C ~ 105°C. For applications requiring full 125°C operation, select from the Amphenol or Sullins alternatives.

Q: Does contact finish affect mating compatibility?

A: Contact finish (tin, tin-lead, or gold) does not affect mechanical mating compatibility with standard 0.100" pitch receptacles. Finish selection influences corrosion resistance, contact resistance stability, and long-term reliability in specific environmental conditions. Gold-finished contacts (5-146280-9, PBC09SAAN) provide superior performance in high-humidity or corrosive environments.

Q: What packaging format should I specify?

A: The primary part 77311-402-09LF is supplied in bag packaging. All substitute parts are supplied in bulk packaging. Confirm packaging requirements with procurement specifications before finalizing part selection.

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