Amphenol ICC 71978-150 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 71978-150 is a through-hole, right-angle rectangular connector header with 50 positions at 2.54mm pitch, designed for board-to-cable/wire applications. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The connector features shrouded 4-wall construction with press-fit and solder termination options, latch lock/eject hooks, and gold-plated mating contacts on phosphor bronze material.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	50
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 for the 71978-150 is determined by strict equivalence in the following critical parameters:

Connector type (Header), contact type (Male Pin), and mating pitch (0.100" / 2.54mm)
Position count (50) and row configuration (2 rows)
Mounting style (Through Hole, Right Angle) and shrouding (Shrouded - 4 Wall)
Material flammability rating (UL94 V-0) and MSL classification (1)

Substitute parts are grouped into two categories:

Category 1: Direct Amphenol ICC Substitutes The 71978-150LF is the active production equivalent from the same manufacturer, differing only in RoHS compliance status and post-contact finish specifications.

Category 2: Cross-Manufacturer Substitutes HARTING SEK series (09185506901, 09185506903, 09185506913, 09185507901, 09185507903, 09185507913, 09195506913), TE Connectivity AMP-Latch (1-499913-0), and 3M 3000 series (N3433-5202RB) maintain electrical and mechanical compatibility through identical mating pitch, position count, row spacing, mounting configuration, and shrouding. Variations in contact length, insulation material, and operating temperature ranges do not affect functional interchangeability for standard board-to-cable applications.

Parameter Comparison

Parameter	71978-150	71978-150LF	09185506901	09185506903	09185506913	09185507901	09185507903	09185507913	09195506913	1-499913-0	N3433-5202RB
Manufacturer	Amphenol ICC	Amphenol ICC	HARTING	HARTING	HARTING	HARTING	HARTING	HARTING	HARTING	TE Connectivity	3M
Connector Type	Header	Header	Header	Header	Header	Header	Header	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
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	50	50	50	50	50	50	50	50	50	50	50
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
Row Spacing - 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)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
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
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Non-compliant	Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	Non-compliant	Compliant

Engineering Selection Recommendations

For RoHS-compliant applications: Select 71978-150LF (Amphenol ICC), HARTING SEK series (09185506901, 09185506903, 09185506913, 09185507901, 09185507903, 09185507913, 09195506913), or 3M N3433-5202RB. All maintain active product status with ROHS3 or RoHS Compliant certification.

For legacy or non-regulated applications: The original 71978-150 remains available in inventory (821 pcs), though obsolete status indicates limited future availability. The TE Connectivity 1-499913-0 is also available but carries RoHS non-compliant status.

For highest inventory availability: HARTING 09185506913 (1225 pcs), 3M N3433-5202RB (1312 pcs), and HARTING 09195506913 (1079 pcs) offer the largest stock quantities.

For REACH compliance: All HARTING SEK series parts and 3M N3433-5202RB carry REACH Unaffected or REACH Compliant status. Amphenol ICC 71978-150LF is REACH Unaffected. TE Connectivity 1-499913-0 is REACH Affected.

Frequently Asked Questions (FAQ)

Q: Can I substitute the obsolete 71978-150 with the 71978-150LF? A: Yes. The 71978-150LF is the direct active equivalent from Amphenol ICC. Both share identical connector type, pitch, position count, row configuration, mounting style, and shrouding. The primary difference is RoHS compliance status (71978-150LF is compliant) and post-contact finish specifications (71978-150LF adds tin finish on posts).

Q: Are HARTING SEK series connectors fully compatible with the 71978-150? A: Yes, for mating and mechanical fit. All HARTING SEK parts (09185506901, 09185506903, 09185506913, 09185507901, 09185507903, 09185507913, 09195506913) maintain the same 0.100" (2.54mm) pitch, 50-position configuration, 2-row layout, right-angle through-hole mounting, and 4-wall shrouding. Variations in contact length (0.240" vs. 0.228" mating contact), insulation material (PBT or PCT vs. phosphor bronze), and operating temperature range (-55°C to 125°C vs. unspecified) do not affect functional interchangeability for standard board-to-cable applications.

Q: What is the difference between HARTING parts with "Long" versus "Short" fastening hooks? A: HARTING designates fastening hook length as either "Long" (09185506901, 09185507901, 09185507903) or "Short" (09185506913, 09185507913, 09195506913). This affects mechanical engagement depth but does not alter electrical compatibility or mating pitch. Selection depends on PCB design and connector housing specifications.

Q: Does packaging type (Tube, Tray, Bulk) affect electrical or mechanical compatibility? A: No. Packaging type (Tube for 71978-150LF, Tray for HARTING 09185506901/09185507913, Bulk for others) is a logistics consideration only and does not affect connector performance or interchangeability.

Q: Which substitute offers the best compliance profile for new designs? A: For new designs requiring maximum regulatory compliance, select HARTING SEK series (ROHS3 Compliant, REACH Unaffected) or 3M N3433-5202RB (RoHS Compliant, REACH Unaffected). Both are active products with established supply chains.

Q: Can I use the TE Connectivity 1-499913-0 as a substitute? A: Yes, for mechanical and electrical compatibility. However, the 1-499913-0 carries RoHS non-compliant and REACH Affected status, making it unsuitable for applications requiring regulatory compliance. It is recommended only for legacy or non-regulated applications.

Q: What is the significance of contact finish differences (Gold vs. Gold-Palladium)? A: Contact finish affects corrosion resistance and contact reliability. The 71978-150 uses gold-plated contacts (30.0µin thickness). HARTING parts use gold finish without specified thickness. TE Connectivity 1-499913-0 specifies gold or gold-palladium (15.0µin). These variations are within acceptable ranges for standard signal and low-power applications but should be evaluated for high-reliability or harsh-environment applications.

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