Equivalent & Substitute Parts for TE Connectivity 104426-3 Rectangular Connector Header

Part Overview

The TE Connectivity AMP Connectors model 104426-3 is a through-hole rectangular connector header with 5 positions at 2.54mm pitch, designed for board-to-board or cable applications. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts that maintain functional compatibility while meeting current manufacturing and compliance standards. The original part features kinked pin solder termination with gold-plated mating contacts and tin-lead plated posts.

Key Parameters

Parameter	Value
Manufacturer Part Number	104426-3
Manufacturer	TE Connectivity AMP Connectors
Category	Rectangular Connectors
Connector Type	Header, Breakaway
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	5
Number of Rows	1
Mounting Type	Through Hole
Termination	Kinked Pin, Solder
Fastening Type	Push-Pull
Contact Shape	Square
Operating Temperature	-65°C ~ 105°C
Current Rating	3A
Material Flammability Rating	UL94 V-0
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the 104426-3 is determined by strict equivalence across the following critical parameters:

Core Electrical and Mechanical Compatibility Criteria:

Pitch - Mating: 0.100" (2.54mm) — must match exactly
Number of Positions: 5 — must match exactly
Number of Rows: 1 — must match exactly
Contact Type: Male Pin — must match exactly
Mounting Type: Through Hole — must match exactly
Fastening Type: Push-Pull — must match exactly
Contact Shape: Square — must match exactly
Material Flammability Rating: UL94 V-0 — must match exactly
Current Rating: 3A minimum — substitute must meet or exceed
Operating Temperature Range: -65°C ~ 105°C minimum — substitute must encompass or exceed

Secondary Compatibility Parameters:

Connector Type: Header or Header, Breakaway
Style: Board to Board or Board to Board or Cable
Termination: Solder (kinked pin termination is specific to obsolete part; active substitutes use standard solder termination)
Contact Finish - Mating: Gold or Tin acceptable
Contact Material: Copper Alloy or Phosphor Bronze acceptable
Insulation Material: Thermoplastic, Liquid Crystal Polymer (LCP), or Polybutylene Terephthalate (PBT) acceptable

Dimensional Tolerance:

Contact Length - Mating: 0.318" (8.08mm) — must match
Insulation Height: 0.090" (2.29mm) to 0.100" (2.54mm) — minor variation acceptable
Contact Length - Post: Variation acceptable based on application stacking requirements

Substitutes are grouped by contact post length to accommodate different PCB stack-up configurations while maintaining mating interface compatibility.

Parameter Comparison

Parameter	104426-3 (Main)	5-146277-5	78511-405HLF	PBC05SFAN	PBC05SFBN	PBC05SFCN	PBC05SFDN	PBC05SFEN	PEC05SFAN	PEC05SFBN	PEC05SFCN
Manufacturer	TE Connectivity	TE Connectivity	Amphenol ICC (FCI)	Sullins	Sullins	Sullins	Sullins	Sullins	Sullins	Sullins	Sullins
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)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	5	5	5	5	5	5	5	5	5	5	5
Number of Rows	1	1	1	1	1	1	1	1	1	1	1
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	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	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Kinked Pin, Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)
Contact Length - Post	0.125" (3.18mm)	0.125" (3.18mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.220" (5.58mm)	0.320" (8.13mm)	0.420" (10.67mm)	0.520" (13.21mm)	0.120" (3.05mm)	0.220" (5.58mm)	0.320" (8.13mm)
Insulation Height	0.090" (2.29mm)	0.090" (2.29mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	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 Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Tin	Gold	Gold	Gold	Gold	Gold	Tin	Tin	Tin
Contact Material	Copper Alloy	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Operating Temperature	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C
Current Rating	3A	3A	5A	3A	3A	3A	3A	3A	3A	3A	3A
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: TE Connectivity 5-146277-5

The TE Connectivity 5-146277-5 is the manufacturer-recommended direct replacement for the obsolete 104426-3. This part maintains identical electrical and mechanical specifications including pitch, position count, contact length, and operating temperature range. The 5-146277-5 achieves ROHS3 compliance, addressing the non-compliance status of the original part. The insulation material differs (Liquid Crystal Polymer instead of Thermoplastic), but this change is within acceptable material substitution parameters. Contact post length remains at 0.125" (3.18mm), ensuring compatibility with existing PCB designs. This part is actively manufactured and maintains 6196 units in stock.

Secondary Recommendation: Amphenol ICC 78511-405HLF

The Amphenol ICC 78511-405HLF (BERGSTIK® II series) provides an alternative from a different manufacturer with enhanced specifications. This part exceeds the original current rating at 5A versus 3A and extends the operating temperature range to -65°C ~ 125°C. The contact post length is 0.120" (3.05mm), which is within acceptable tolerance of the original 0.125" (3.18mm). Contact finish differs (Tin mating surface instead of Gold), and contact material is Phosphor Bronze. This part is RoHS Compliant and actively manufactured with 965 units in stock.

Tertiary Recommendations: Sullins Connector Solutions PBC and PEC Series

The Sullins PBC05 and PEC05 series headers provide multiple post length options to accommodate various PCB stack-up requirements:

PBC05SFAN and PEC05SFAN (0.120" post length): Direct mechanical equivalent to the original part with minimal dimensional variation. PBC05SFAN features gold-plated mating contacts; PEC05SFAN features tin-plated mating contacts. Both are ROHS3 compliant with extended operating temperature range to -65°C ~ 125°C.

PBC05SFBN and PEC05SFBN (0.220" post length): Extended post length for applications requiring additional PCB clearance or stacking height.

PBC05SFCN and PEC05SFCN (0.320" post length): Further extended post length for deeper component stacking configurations.

PBC05SFDN (0.420" post length): Maximum post length option for applications with significant stacking requirements.

PBC05SFEN (0.520" post length): Extended post length for specialized stacking applications.

All Sullins parts are ROHS3 compliant, actively manufactured, and feature Phosphor Bronze contact material with Polybutylene Terephthalate (PBT) insulation. Operating temperature range extends to -65°C ~ 125°C across all variants.

Compliance Considerations

The original 104426-3 is RoHS non-compliant due to tin-lead plating on contact posts. All recommended substitutes achieve either ROHS3 or RoHS compliance, addressing regulatory requirements for new designs and manufacturing transitions. The 5-146277-5 is the only substitute maintaining identical contact post length (0.125" / 3.18mm), making it the optimal choice for direct PCB retrofit applications without design modification.

Frequently Asked Questions (FAQ)

Q: Can the 5-146277-5 be used as a direct drop-in replacement for the 104426-3?

A: Yes. The 5-146277-5 maintains identical pitch (2.54mm), position count (5), contact length (0.318" mating), contact post length (0.125"), and operating temperature range (-65°C ~ 105°C). The primary differences are material composition (LCP insulation instead of Thermoplastic) and RoHS3 compliance. No PCB design modification is required.

Q: What is the difference between the PBC05 and PEC05 series from Sullins?

A: The primary difference is contact finish on the mating surface. PBC05 series features gold-plated mating contacts (10.0µin thickness), while PEC05 series features tin-plated mating contacts (100.0µin thickness). Both series share identical post length options (A, B, C, D, E variants), operating temperature range (-65°C ~ 125°C), and current rating (3A). Selection depends on application requirements for contact finish and mating surface durability.

Q: Why do the Sullins parts have different post lengths (A, B, C, D, E variants)?

A: Post length variation accommodates different PCB stack-up configurations and component clearance requirements. The original 104426-3 has a 0.125" (3.18mm) post length, which corresponds most closely to the Sullins "A" variant at 0.120" (3.05mm). Longer variants (B through E) are available for applications requiring additional stacking height or PCB clearance. Selection depends on specific PCB design requirements.

Q: Is the Amphenol ICC 78511-405HLF compatible with the original 104426-3?

A: The 78511-405HLF is mechanically and electrically compatible for mating interface purposes. The contact post length is 0.120" (3.05mm) versus the original 0.125" (3.18mm), a difference of 0.005" (0.127mm). This minor variation is within acceptable tolerance for most applications. The 78511-405HLF provides enhanced specifications with 5A current rating and extended operating temperature to -65°C ~ 125°C. Contact finish differs (Tin instead of Gold), which may affect contact resistance characteristics in specific applications.

Q: What is the significance of the contact finish difference between Gold and Tin?

A: Gold-plated contacts (104426-3, PBC05 series) provide superior corrosion resistance and lower contact resistance over extended service life. Tin-plated contacts (78511-405HLF, PEC05 series) offer cost efficiency and adequate performance for standard applications. Both finishes meet UL94 V-0 flammability requirements. Selection depends on application environment (corrosive conditions favor gold) and cost constraints.

Q: Are all substitute parts RoHS compliant?

A: Yes. All recommended substitutes achieve either ROHS3 or RoHS compliance. The original 104426-3 is RoHS non-compliant due to tin-lead plating on contact posts. Substitution addresses regulatory requirements for new designs and manufacturing transitions in regions with RoHS mandates.

Q: Can I use the 78511-405HLF in place of the 5-146277-5?

A: Both parts are functionally compatible for mating interface purposes. The 78511-405HLF provides enhanced current rating (5A versus 3A) and extended operating temperature range (-65°C ~ 125°C versus -65°C ~ 105°C). The contact post length is 0.120" versus 0.125", a 0.005" difference. Contact finish differs (Tin versus Gold). For direct PCB retrofit without design modification, the 5-146277-5 is preferred due to identical post length. The 78511-405HLF is suitable for new designs where the minor post length variation is acceptable.

Q: What inventory levels are available for each substitute part?

A: Current inventory levels are: 5-146277-5 (6196 units), PEC05SFAN (8979 units), PBC05SFAN (7400 units), PEC05SFBN (2188 units), PBC05SFCN (1117 units), PBC05SFDN (666 units), PBC05SFEN (1031 units), 78511-405HLF (965 units), PEC05SFCN (1061 units), PBC05SFBN (813 units). Inventory levels are subject to change and should be confirmed at time of procurement.

Q: Which substitute part should I select for a new design?

A: For new designs, the 5-146277-5 is recommended as the manufacturer-endorsed replacement with identical specifications and RoHS3 compliance. For applications requiring enhanced specifications, the 78511-405HLF offers higher current rating and extended temperature range. For applications requiring specific post length configurations, the Sullins PBC05 or PEC05 series provides multiple options. All substitutes meet core electrical and mechanical compatibility requirements.

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