Equivalent & Substitute Parts for 71978-126

Part Overview

The Amphenol ICC 71978-126 is a rectangular connector header, right-angle configuration, with 26 positions at 0.100" (2.54mm) pitch. This through-hole component features shrouded 4-wall design with press-fit and solder termination options. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain functional compatibility for new designs and production continuity.

Key Parameters

Parameter	71978-126 Specification
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	26
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Contact Shape	Square
Material Flammability Rating	UL94 V-0
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters:

Connector type (Header)
Contact type (Male Pin)
Mating pitch (0.100" / 2.54mm)
Position count (26)
Row configuration (2 rows)
Row spacing (0.100" / 2.54mm)
Mounting style (Through Hole, Right Angle)
Shrouding configuration (Shrouded - 4 Wall)
Contact shape (Square)
Flammability rating (UL94 V-0)
MSL rating (1 - Unlimited)

All identified substitute parts meet these core electrical and mechanical parameters. Variations in contact finish, insulation material, fastening hook length, and regulatory compliance status are secondary considerations that do not affect functional interchangeability for standard board-to-cable/wire applications.

Parameter Comparison

Part Number	Manufacturer	Series	Product Status	Pitch (mm)	Positions	Rows	Mounting	Shrouding	Contact Finish - Mating	Contact Material	Insulation Material	RoHS Status	Inventory (Pcs)
71978-126	Amphenol ICC (FCI)	Quickie™	Obsolete	2.54	26	2	Through Hole, Right Angle	Shrouded - 4 Wall	Gold, GXT™	Phosphor Bronze	Thermoplastic, Glass Filled	RoHS non-compliant	986
71978-126LF	Amphenol ICC (FCI)	Quickie™	Active	2.54	26	2	Through Hole, Right Angle	Shrouded - 4 Wall	Gold, GXT™	Phosphor Bronze	Thermoplastic, Glass Filled	RoHS Compliant	955
09185265913	HARTING	SEK	Active	2.54	26	2	Through Hole, Right Angle	Shrouded - 4 Wall	Gold	Copper Alloy	Polybutylene Terephthalate (PBT), Glass Filled	ROHS3 Compliant	1033
09185266913	HARTING	SEK	Active	2.54	26	2	Through Hole, Right Angle	Shrouded - 4 Wall	Gold	Copper Alloy	Polybutylene Terephthalate (PBT), Glass Filled	ROHS3 Compliant	861
09185267913	HARTING	SEK	Active	2.54	26	2	Through Hole, Right Angle	Shrouded - 4 Wall	Gold	Copper Alloy	Polybutylene Terephthalate (PBT), Glass Filled	ROHS3 Compliant	1055
141A10959X	Amphenol CONEC	—	Active	2.54	26	2	Through Hole, Right Angle	Shrouded - 4 Wall	Gold	Copper Alloy	Polybutylene Terephthalate (PBT), Glass Filled	ROHS3 Compliant	921
2-5499141-6	TE Connectivity AMP Connectors	AMP-Latch	Active	2.54	26	2	Through Hole, Right Angle	Shrouded - 4 Wall	Gold or Gold-Palladium	Brass	—	ROHS3 Compliant	1334
499141-6	TE Connectivity AMP Connectors	AMP-Latch	Active	2.54	26	2	Through Hole, Right Angle	Shrouded - 4 Wall	Gold or Gold-Palladium	Brass	—	RoHS non-compliant	929
499786-6	TE Connectivity AMP Connectors	AMP-Latch	Active	2.54	26	2	Through Hole, Right Angle	Shrouded - 4 Wall	Gold or Gold-Palladium	Brass	—	RoHS non-compliant	944
5102322-6	TE Connectivity AMP Connectors	AMP-Latch	Active	2.54	26	2	Through Hole, Right Angle	Shrouded - 4 Wall	Gold or Gold-Palladium	Brass	—	ROHS3 Compliant	926
5499141-6	TE Connectivity AMP Connectors	AMP-Latch	Active	2.54	26	2	Through Hole, Right Angle	Shrouded - 4 Wall	Gold or Gold-Palladium	Brass	—	RoHS Compliant	2412

Engineering Selection Recommendations

Primary Recommendation: 71978-126LF

The 71978-126LF is the direct active equivalent from the original manufacturer, Amphenol ICC. This part maintains identical electrical and mechanical specifications while achieving RoHS compliance. It is the preferred choice for design continuity and supply chain consistency.

Secondary Recommendations (Multi-Source Strategy):

For applications requiring regulatory compliance and supply diversification:

HARTING 09185265913, 09185266913, 09185267913: ROHS3-compliant alternatives with active product status and high inventory availability. These parts maintain all critical substitution parameters and feature extended operating temperature range (-55°C to 125°C).
TE Connectivity 5499141-6: RoHS-compliant option with highest inventory level (2412 pcs). Suitable for new designs requiring compliance certification.
TE Connectivity 2-5499141-6, 5102322-6: ROHS3-compliant variants with active status, offering additional supply redundancy.

Non-Compliant Alternatives (Legacy Support Only):

Parts 499141-6 and 499786-6 remain functionally equivalent but carry RoHS non-compliance and REACH-affected status. These are suitable only for legacy product support where regulatory exemptions apply.

Frequently Asked Questions (FAQ)

Q: Can 71978-126 be directly replaced with 71978-126LF?

A: Yes. The 71978-126LF is the active equivalent from the same manufacturer with identical connector specifications. The primary difference is RoHS compliance status. Both parts share the same Quickie™ series designation, pitch, position count, and mounting configuration.

Q: What are the key differences between Amphenol ICC and HARTING alternatives?

A: Both manufacturers provide functionally equivalent 26-position, 2.54mm pitch headers with shrouded 4-wall design. HARTING parts (09185265913, 09185266913, 09185267913) feature PBT insulation material and extended operating temperature range (-55°C to 125°C) compared to the original thermoplastic glass-filled insulation. Contact material differs (Copper Alloy vs. Phosphor Bronze), but both meet UL94 V-0 flammability requirements.

Q: Are TE Connectivity AMP-Latch series parts compatible?

A: Yes. All TE Connectivity AMP-Latch variants (5499141-6, 2-5499141-6, 499141-6, 499786-6, 5102322-6) meet the core substitution criteria: 26 positions, 2.54mm pitch, 2-row configuration, through-hole right-angle mounting, and shrouded 4-wall design. Differences in contact finish thickness, post length, and insulation color do not affect functional interchangeability.

Q: What packaging options are available?

A: Substitute parts are supplied in Tube (71978-126LF), Bulk (HARTING series, 141A10959X, 499141-6, 499786-6), and Tray (2-5499141-6, 5102322-6, 5499141-6) configurations. Packaging selection depends on production volume and handling requirements.

Q: Which substitute offers the best RoHS compliance?

A: Parts designated ROHS3 Compliant (09185265913, 09185266913, 09185267913, 141A10959X, 2-5499141-6, 5102322-6) meet the most current regulatory requirements. The 71978-126LF achieves RoHS Compliant status. Parts 499141-6 and 499786-6 are RoHS non-compliant and REACH-affected.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes, provided the PCB footprint accommodates the connector's mechanical envelope. All substitute parts maintain identical pitch (2.54mm), position count (26), and right-angle through-hole mounting. Minor variations in contact length and insulation height do not affect standard board-level compatibility.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message