TE Connectivity AMP Connectors 281276-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 281276-2 is a rectangular connector header designed for through-hole mounting applications. This connector features a vertical orientation with 34 positions arranged in 2 rows at 0.100" (2.54mm) pitch, utilizing shrouded 4-wall construction with push-pull fastening. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain functional compatibility with existing board designs and mating interfaces.

Key Parameters

Parameter	Value
Manufacturer Part Number	281276-2
Manufacturer	TE Connectivity AMP Connectors
Category	Rectangular Connectors
Connector Type	Header
Contact Type	Male Pin
Number of Positions	34
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
Fastening Type	Push-Pull
Contact Shape	Square
Insulation Material	Polybutylene Terephthalate (PBT), Glass Filled
Insulation Color	Black
Contact Finish - Mating	Gold
Contact Finish - Post	Tin
Contact Material	Brass
Product Status	Obsolete
Series	AMP-Latch
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 281276-2 is determined by strict adherence to the following critical parameters:

Primary Substitution Criteria:

Number of Positions: 34
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

Secondary Compatibility Parameters:

Contact Shape: Square
Fastening Type: Push-Pull (primary) or Latch Holder (compatible alternative)
Insulation Color: Black (preferred) or alternative colors acceptable
Contact Finish - Mating: Gold (primary) or Gold-Palladium (compatible)
Contact Finish - Post: Tin (primary) or Gold (compatible)

Parts that deviate from the primary substitution criteria—specifically those with different position counts, pitch spacing, or mounting configurations—are classified as similar but not direct substitutes and are identified separately.

Parameter Comparison

Parameter	281276-2 (Main)	5103308-7	09195346324	10056844-134LF	75869-106LF	75869-306LF	TST-117-01-G-D	TST-117-01-L-D	TST-117-01-T-D
Manufacturer	TE Connectivity	TE Connectivity	HARTING	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Samtec Inc.	Samtec Inc.	Samtec Inc.
Number of Positions	34	34	34	34	34	34	34	34	34
Number of Rows	2	2	2	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)	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)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Connector Type	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
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	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	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Fastening Type	Push-Pull	Push-Pull	Latch Holder	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold or Gold-Palladium	Not specified	Gold, GXT™	Gold, GXT™	Gold, GXT™	Gold	Gold	Tin
Contact Finish - Post	Tin	Tin	Tin	Tin	Tin	Tin	Gold	Tin	Tin
Contact Material	Brass	Brass	Copper Alloy	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	PBT, Glass Filled	Not specified	PCT, Glass Filled	Thermoplastic	Thermoplastic, Glass Filled	Thermoplastic, Glass Filled	PBT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled
Insulation Color	Black	Black	Beige	Black	Blue	Blue	Black	Black	Black
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Not applicable	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Operating Temperature Range	Not specified	-65°C ~ 105°C	-55°C ~ 125°C	Not specified	Not specified	Not specified	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 105°C
Current Rating (Amps)	Not specified	1A per Contact	Not specified	Not specified	Not specified	Not specified	3.4A per Contact	3.4A per Contact	3.4A per Contact
Material Flammability Rating	Not specified	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Equivalent - Preferred Substitution:

The TE Connectivity 5103308-7 serves as the direct equivalent replacement for the obsolete 281276-2. Both components are manufactured by TE Connectivity within the AMP-Latch series and maintain identical mechanical and electrical interface specifications. The 5103308-7 is classified as Active product status with ROHS3 compliance, UL94 V-0 flammability rating, and documented operating temperature range of -65°C to 105°C. This part is available in Tray packaging with 3916 units in stock.

Primary Active Substitutes - Full Compatibility:

The following parts maintain complete compatibility with the 281276-2 interface specifications and are recommended for applications requiring active product status:

75869-306LF (Amphenol ICC FCI, Quickie™ Series): Maintains identical 34-position, 2-row configuration with 0.100" pitch. RoHS Compliant with UL94 V-0 rating. Available in Tube packaging with 1720 units in stock.
75869-106LF (Amphenol ICC FCI, Quickie™ Series): Functionally equivalent with identical position and pitch specifications. RoHS Compliant with UL94 V-0 rating. Available in Tube packaging with 3059 units in stock.
10056844-134LF (Amphenol ICC FCI, Quickie™ Series): Maintains full mechanical and electrical compatibility. RoHS Compliant with UL94 V-0 rating. Available in Tube packaging with 795 units in stock.
TST-117-01-L-D (Samtec Inc., Flex Stack TST Series): Provides full interface compatibility with enhanced current rating of 3.4A per contact. ROHS3 Compliant with UL94 V-0 rating and operating temperature range -55°C to 125°C. Available in Bulk packaging with 1158 units in stock.
TST-117-01-G-D (Samtec Inc., Flex Stack TST Series): Equivalent to TST-117-01-L-D with gold post finish. ROHS3 Compliant with UL94 V-0 rating and operating temperature range -55°C to 125°C. Available in Bulk packaging with 852 units in stock.
TST-117-01-T-D (Samtec Inc., Flex Stack TST Series): Tin finish variant with identical mechanical compatibility. ROHS3 Compliant with UL94 V-0 rating and operating temperature range -55°C to 105°C. Available in Bulk packaging with 812 units in stock.

Compatible Alternative - Different Fastening Type:

09195346324 (HARTING, SEK Series): Maintains identical 34-position, 2-row configuration with 0.100" pitch but utilizes Latch Holder fastening instead of Push-Pull. ROHS3 Compliant with UL94 V-0 rating and operating temperature range -55°C to 125°C. Available in Bulk packaging with 790 units in stock. This part is suitable for applications where latch-type fastening is acceptable.

Non-Compatible Similar Part:

09195406324741 (HARTING, SEK Series): This part features 40 positions instead of 34 and is not a direct substitute. It is listed for reference only in applications requiring expanded pin count.

Frequently Asked Questions (FAQ)

Q: What makes the TE Connectivity 5103308-7 the preferred substitute for the obsolete 281276-2?

A: The 5103308-7 is manufactured by the same company (TE Connectivity) within the same AMP-Latch series and maintains identical specifications for all critical interface parameters: 34 positions, 2 rows, 0.100" (2.54mm) pitch, shrouded 4-wall construction, through-hole mounting, and push-pull fastening. It is classified as Active product status with current availability and modern compliance certifications (ROHS3, UL94 V-0).

Q: Can I use the HARTING 09195346324 as a substitute if my application uses push-pull fastening?

A: The HARTING 09195346324 utilizes Latch Holder fastening rather than Push-Pull fastening. While it maintains identical position count, row configuration, and pitch specifications, the fastening mechanism difference means it is not suitable for applications specifically designed for push-pull connectors. Verify your mating connector type before selection.

Q: What is the difference between the Samtec TST-117-01-L-D, TST-117-01-G-D, and TST-117-01-T-D variants?

A: These three parts are mechanically and electrically identical with the following distinctions: TST-117-01-L-D features gold mating finish with tin post finish; TST-117-01-G-D features gold mating finish with gold post finish; TST-117-01-T-D features tin mating finish with tin post finish. All three provide 3.4A per contact current rating and ROHS3 compliance. Selection depends on your specific contact finish requirements and application environment.

Q: Are all substitute parts RoHS compliant?

A: All active substitute parts listed are RoHS compliant. The TE Connectivity 5103308-7, Amphenol ICC FCI parts (75869-306LF, 75869-106LF, 10056844-134LF), HARTING 09195346324, and Samtec TST series parts all carry either RoHS or ROHS3 compliance certifications. The original 281276-2 is classified as "Not applicable" for RoHS status due to its obsolete status.

Q: What is the difference in insulation material between substitute options?

A: The main part (281276-2) and most Samtec TST variants use Polybutylene Terephthalate (PBT) glass-filled insulation. The HARTING 09195346324 uses Polycyclohexylenedimethylene Terephthalate (PCT) glass-filled insulation. Amphenol ICC FCI parts use Thermoplastic or Thermoplastic glass-filled insulation. All materials meet UL94 V-0 flammability requirements. Material selection does not affect electrical interface compatibility.

Q: Can I mix and match substitute parts in the same application?

A: All listed substitute parts maintain identical mechanical and electrical interface specifications for mating purposes. However, within a single assembly, maintain consistency in fastening type (push-pull versus latch holder) and contact finish specifications to ensure uniform performance and reliability.

Q: What packaging options are available for these substitutes?

A: Substitute parts are available in multiple packaging formats: Tray (5103308-7), Tube (75869-306LF, 75869-106LF, 10056844-134LF), and Bulk (09195346324, TST-117-01-L-D, TST-117-01-G-D, TST-117-01-T-D). Select packaging based on your procurement volume and assembly process requirements.

Q: Are there any operating temperature limitations I should consider?

A: The original 281276-2 does not specify an operating temperature range. Substitute parts provide documented ranges: TE Connectivity 5103308-7 operates -65°C to 105°C; Samtec TST variants operate -55°C to 125°C (TST-117-01-L-D and TST-117-01-G-D) or -55°C to 105°C (TST-117-01-T-D); HARTING 09195346324 operates -55°C to 125°C. Select based on your application's thermal requirements.

Q: What current ratings should I consider for high-current applications?

A: The original 281276-2 does not specify a current rating. Among substitutes, the TE Connectivity 5103308-7 is rated at 1A per contact, while Samtec TST series parts provide 3.4A per contact. For applications requiring higher current capacity, the Samtec TST variants are the appropriate selection.

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