TE Connectivity AMP Connectors 281275-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 281275-2 is an active rectangular connector header designed for through-hole mounting applications. This shrouded 26-position connector operates at 0.100" (2.54mm) pitch and accommodates board-to-cable/wire interconnections with push-pull fastening. The connector features male pin contacts with gold-plated mating surfaces and tin-plated solder posts, constructed from brass with polybutylene terephthalate (PBT) glass-filled insulation.

Substitute parts are necessary when the primary part number becomes unavailable, when alternative manufacturers offer equivalent electrical and mechanical specifications, or when design flexibility permits selection from multiple qualified sources meeting identical performance parameters.

Key Parameters

Parameter	Specification
Connector Type	Header
Contact Type	Male Pin
Number of Positions	26
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Shrouding	Shrouded - 4 Wall
Style	Board to Cable/Wire
Contact Shape	Square
Fastening Type	Push-Pull
Features	Keying Slot
Insulation Material	Polybutylene Terephthalate (PBT), Glass Filled
Contact Finish - Mating	Gold
Contact Finish - Post	Tin
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 281275-2 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Number of Positions: 26
Number of Rows: 2
Pitch - Mating: 0.100" (2.54mm)
Row Spacing - Mating: 0.100" (2.54mm)
Connector Type: Header
Contact Type: Male Pin
Mounting Type: Through Hole
Termination: Solder
Shrouding: Shrouded - 4 Wall
Style: Board to Cable/Wire
Contact Shape: Square
Features: Keying Slot

All identified substitute parts meet these mandatory parameters. Variations in secondary specifications such as contact material composition, insulation material type, contact finish thickness, and operating temperature range do not preclude substitution when the primary electrical and mechanical interfaces remain identical.

Parameter Comparison

Parameter	281275-2 (TE Connectivity)	09195267324 (HARTING)	75869-105LF (Amphenol ICC)	75869-305LF (Amphenol ICC)	TST-113-01-G-D (Samtec)	TST-113-01-L-D (Samtec)
Manufacturer	TE Connectivity	HARTING	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Samtec Inc.	Samtec Inc.
Series	AMP-Latch	SEK	Quickie™	Quickie™	Flex Stack, TST	Flex Stack, TST
Number of Positions	26	26	26	26	26	26
Number of Rows	2	2	2	2	2	2
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)
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)
Connector Type	Header	Header	Header	Header	Header	Header
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
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Style	Board to Cable/Wire	Board to Cable/Wire	Board to Cable/Wire	Board to Cable/Wire	Board to Cable/Wire	Board to Cable/Wire
Contact Shape	Square	Square	Square	Square	Square	Square
Fastening Type	Push-Pull	Latch Holder	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Features	Keying Slot	Keying Slot	Keying Slot	Keying Slot	Keying Slot	Keying Slot
Contact Length - Mating	Not Specified	0.240" (6.10mm)	0.236" (6.00mm)	0.236" (6.00mm)	0.250" (6.35mm)	0.250" (6.35mm)
Contact Length - Post	0.118" (3.00mm)	0.114" (2.90mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.115" (2.92mm)	0.115" (2.92mm)
Insulation Height	0.402" (10.20mm)	0.350" (8.89mm)	0.377" (9.57mm)	0.377" (9.57mm)	0.350" (8.89mm)	0.350" (8.89mm)
Contact Material	Brass	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Polybutylene Terephthalate (PBT), Glass Filled	Polycyclohexylenedimethylene Terephthalate (PCT), Glass Filled	Thermoplastic, Glass Filled	Thermoplastic, Glass Filled	Polybutylene Terephthalate (PBT), Glass Filled	Polybutylene Terephthalate (PBT), Glass Filled
Contact Finish - Mating	Gold	Not Specified	Gold, GXT™	Gold, GXT™	Gold	Gold
Contact Finish Thickness - Mating	15.0µin (0.38µm)	Not Specified	30.0µin (0.76µm)	15.0µin (0.38µm)	10.0µin (0.25µm)	10.0µin (0.25µm)
Contact Finish - Post	Tin	Tin	Tin	Tin	Gold	Tin
Operating Temperature	Not Specified	-55°C ~ 125°C	Not Specified	Not Specified	-55°C ~ 125°C	-55°C ~ 125°C
Material Flammability Rating	Not Specified	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	Vendor Undefined	REACH Unaffected	REACH Affected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All identified substitute parts maintain active product status and comply with ROHS3 or RoHS standards. Selection among equivalent parts should be based on the following compliance and certification factors:

ROHS3 Compliance: The TE Connectivity 281275-2, HARTING 09195267324, and both Samtec parts (TST-113-01-G-D and TST-113-01-L-D) carry ROHS3 Compliant certification. The Amphenol ICC parts (75869-105LF and 75869-305LF) carry RoHS Compliant status without ROHS3 designation.

REACH Status: HARTING 09195267324, Samtec TST-113-01-G-D, and Samtec TST-113-01-L-D are designated REACH Unaffected. Amphenol ICC 75869-105LF is REACH Affected. The TE Connectivity primary part and Amphenol ICC 75869-305LF have undefined or unaffected REACH status respectively.

Flammability Rating: HARTING, Amphenol ICC, and Samtec substitute parts all carry UL94 V-0 material flammability ratings. The primary TE Connectivity part does not specify this rating.

Operating Temperature: HARTING 09195267324 and both Samtec parts specify -55°C to 125°C operating temperature range. The primary part and Amphenol ICC parts do not specify operating temperature.

Current Rating: Samtec parts specify 3.4A per contact. Other parts do not specify current rating.

Selection should prioritize parts matching the regulatory and compliance requirements of the target application.

Frequently Asked Questions (FAQ)

Q: Can the HARTING 09195267324 substitute for the TE Connectivity 281275-2 despite the different fastening type?

A: The HARTING 09195267324 uses Latch Holder fastening while the TE Connectivity 281275-2 uses Push-Pull fastening. This difference affects the mating interface and connector engagement mechanism. Substitution is not recommended when fastening type differs, as it impacts mechanical compatibility with mating connectors.

Q: Are the Amphenol ICC 75869-105LF and 75869-305LF interchangeable?

A: Both Amphenol ICC parts are functionally equivalent with identical electrical and mechanical specifications. The primary difference is contact finish thickness on the mating surface: 75869-105LF specifies 30.0µin (0.76µm) while 75869-305LF specifies 15.0µin (0.38µm), matching the primary TE Connectivity part. Selection depends on application requirements for contact durability and wear resistance.

Q: What is the significance of the different insulation materials across substitute parts?

A: The primary TE Connectivity part and Samtec parts use Polybutylene Terephthalate (PBT) glass-filled insulation. HARTING uses Polycyclohexylenedimethylene Terephthalate (PCT) glass-filled insulation. Amphenol ICC parts specify Thermoplastic glass-filled insulation without specific polymer designation. These materials have different thermal and mechanical properties but all meet the specified performance requirements for this connector category.

Q: Why do some parts specify operating temperature while others do not?

A: Operating temperature specification is provided by manufacturers based on their design validation and testing protocols. Absence of specification does not indicate temperature limitation but rather reflects different documentation practices. HARTING and Samtec provide -55°C to 125°C specifications; other manufacturers do not specify this parameter in the provided data.

Q: What packaging options are available for these substitute parts?

A: TE Connectivity 281275-2 is packaged in bulk. HARTING 09195267324 is packaged in bulk. Amphenol ICC parts (75869-105LF and 75869-305LF) are packaged in tubes. Samtec parts (TST-113-01-G-D and TST-113-01-L-D) are packaged in bulk. Packaging selection affects handling, storage, and procurement logistics but does not impact electrical or mechanical performance.

Q: Are the Samtec TST-113-01-G-D and TST-113-01-L-D interchangeable?

A: Both Samtec parts are identical except for post contact finish: TST-113-01-G-D has gold-plated posts while TST-113-01-L-D has tin-plated posts. The primary TE Connectivity part specifies tin-plated posts, making TST-113-01-L-D the closer match. Selection between these parts depends on solder joint requirements and post-plating compatibility with the PCB assembly process.

Q: What is the significance of the Overall Contact Length specification in Samtec parts?

A: Samtec parts specify Overall Contact Length of 0.480" (12.19mm), which represents the total contact length from mating end to post end. This specification is not provided for other parts in this comparison. This dimension affects connector stacking height and board-to-board spacing in multi-connector applications.

Q: How does inventory availability affect substitution decisions?

A: Inventory levels are provided for reference: TE Connectivity 281275-2 has 809 units, HARTING 09195267324 has 1032 units, Amphenol ICC 75869-105LF has 9305 units, Amphenol ICC 75869-305LF has 1471 units, Samtec TST-113-01-G-D has 1030 units, and Samtec TST-113-01-L-D has 788 units. Inventory availability should be verified at time of procurement as stock levels change continuously.

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