TE Connectivity 281274-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 281274-2 is a shrouded vertical header connector with 20 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This through-hole component features male pins with solder termination and push-pull fastening, designed for board-to-cable/wire applications. The connector is manufactured from polybutylene terephthalate (PBT) glass-filled insulation with gold-plated mating contacts and tin-plated posts. The part maintains active product status with 1014 units currently in stock. Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support alternative sourcing strategies while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	20
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
Contact Shape	Square
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Contact Finish - Post	Tin
Contact Material	Brass
Insulation Material	Polybutylene Terephthalate (PBT), Glass Filled
Insulation Color	Black
Insulation Height	0.402" (10.20mm)
Contact Length - Post	0.118" (3.00mm)
Contact Finish Thickness - Mating	15.0µin (0.38µm)
Features	Keying Slot
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	Not applicable
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 281274-2 is determined by strict alignment of the following critical parameters:

Primary Matching Criteria:

Connector Type: Header
Contact Type: Male Pin
Number of Positions: 20
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
Contact Shape: Square
Features: Keying Slot

Secondary Compatibility Parameters:

Contact Finish - Mating: Gold (primary specification)
Contact Finish - Post: Tin
Insulation Material: Polybutylene Terephthalate (PBT), Glass Filled or equivalent thermoplastic
Contact Material: Brass or Copper Alloy
Fastening Type: Push-Pull or Latch Holder (functionally compatible)

Substitute parts are grouped into two categories based on fastening mechanism compatibility. Parts with push-pull fastening (75869-104LF, 75869-204LF, 75869-304LF, AWHW 20G-0202-T) provide direct mechanical interchange. Parts with latch holder fastening (HARTING SEK series: 09185205322, 09185205324, 09185206322, 09185206324, 09185207324, 09195207324) maintain electrical compatibility with alternative mating interface characteristics.

Parameter Comparison

Parameter	281274-2 (TE)	09185205322 (HARTING)	09185205324 (HARTING)	09185206322 (HARTING)	09185206324 (HARTING)	09185207324 (HARTING)	09195207324 (HARTING)	75869-104LF (Amphenol)	75869-204LF (Amphenol)	75869-304LF (Amphenol)	AWHW 20G-0202-T (Assmann)
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
Number of Positions	20	20	20	20	20	20	20	20	20	20	20
Number of Rows	2	2	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)	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)	0.100" (2.54mm)	0.100" (2.54mm)
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	Solder	Solder	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	Shrouded - 4 Wall	Shrouded - 4 Wall
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
Fastening Type	Push-Pull	Latch Holder	Latch Holder	Latch Holder	Latch Holder	Latch Holder	Latch Holder	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold	Gold	Not specified	Gold	Not specified	Gold, GXT™	Tin	Gold, GXT™	Gold
Contact Finish - Post	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin
Contact Material	Brass	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Brass
Insulation Material	PBT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled	PCT, Glass Filled	Thermoplastic, Glass Filled	Thermoplastic, Glass Filled	Thermoplastic, Glass Filled	PBT, Glass Filled
Insulation Color	Black	Gray	Gray	Gray	Gray	Gray	Beige	Blue	Blue	Blue	Gray
Insulation Height	0.402" (10.20mm)	0.350" (8.89mm)	0.350" (8.89mm)	0.350" (8.89mm)	0.350" (8.89mm)	0.350" (8.89mm)	0.350" (8.89mm)	0.377" (9.57mm)	0.377" (9.57mm)	0.377" (9.57mm)	0.354" (9.00mm)
Contact Length - Mating	Not specified	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.236" (6.00mm)	0.236" (6.00mm)	0.236" (6.00mm)	0.224" (5.70mm)
Contact Length - Post	0.118" (3.00mm)	0.177" (4.50mm)	0.114" (2.90mm)	0.177" (4.50mm)	0.114" (2.90mm)	0.114" (2.90mm)	0.114" (2.90mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.130" (3.30mm)
Contact Finish Thickness - Mating	15.0µin (0.38µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	Not specified	Not specified	Not specified	Not specified	30.0µin (0.76µm)	78.7µin (2.00µm)	15.0µin (0.38µm)	Flash
Features	Keying Slot	Keying Slot	Keying Slot	Keying Slot	Keying Slot	Keying Slot	Keying Slot	Keying Slot	Keying Slot	Keying Slot	Keying Slot
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	Not applicable	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts listed maintain active product status and are manufactured by established connector suppliers. Selection between substitute options is determined by specific application requirements and compliance mandates.

Push-Pull Fastening Group (Direct Mechanical Interchange):

The Amphenol ICC (FCI) Quickie™ series (75869-104LF, 75869-204LF, 75869-304LF) and Assmann WSW AWHW 20G-0202-T provide direct mechanical compatibility with the TE Connectivity 281274-2 push-pull fastening mechanism. These parts are RoHS Compliant and maintain MSL 1 rating. The 75869-104LF and 75869-304LF feature gold-plated mating contacts with 30.0µin and 15.0µin thickness respectively, matching the original specification. The 75869-204LF provides tin-plated mating contacts as an alternative. The AWHW 20G-0202-T offers gold flash finish with 3A current rating and operates across -40°C to 105°C temperature range.

Latch Holder Fastening Group (Electrical Compatibility with Alternative Mating Interface):

The HARTING SEK series (09185205322, 09185205324, 09185206322, 09185206324, 09185207324, 09195207324) provides electrical and dimensional compatibility with alternative fastening mechanism. These parts are ROHS3 Compliant with REACH Unaffected status and operate across -55°C to 125°C temperature range. Parts 09185205322 and 09185206322 feature 0.177" (4.50mm) post length, while 09185205324, 09185206324, 09185207324, and 09195207324 feature 0.114" (2.90mm) post length. The 09195207324 utilizes polycyclohexylenedimethylene terephthalate (PCT) insulation material with beige color, while remaining SEK series parts use PBT insulation with gray color.

Compliance Considerations:

All substitute parts maintain MSL 1 (Unlimited) moisture sensitivity rating. RoHS compliance status varies: TE Connectivity 281274-2 is not applicable, while all substitute parts are either RoHS Compliant or ROHS3 Compliant. REACH status differs between manufacturers: HARTING parts are REACH Unaffected, Amphenol ICC parts are REACH Affected, and Assmann WSW parts are REACH Unaffected.

Frequently Asked Questions (FAQ)

Q: Can HARTING SEK series parts with latch holder fastening directly replace the TE Connectivity 281274-2 with push-pull fastening?

A: HARTING SEK series parts provide electrical and pin-to-pin dimensional compatibility but feature latch holder fastening instead of push-pull. The mating interface differs mechanistically. Direct mechanical interchange is not possible without mating connector modification. Electrical functionality remains compatible for applications where the fastening mechanism change is acceptable.

Q: What is the significance of contact length differences between the main part and substitutes?

A: Contact length variations affect mating depth and engagement characteristics. The TE Connectivity 281274-2 features 0.118" (3.00mm) post length, while substitutes range from 0.114" to 0.177" (2.90mm to 4.50mm). These differences influence PCB hole depth requirements and mating connector compatibility. Selection must account for receiving connector specifications.

Q: Are there differences in insulation height that affect board layout?

A: Yes. The TE Connectivity 281274-2 has 0.402" (10.20mm) insulation height, while HARTING SEK series parts measure 0.350" (8.89mm), Amphenol ICC Quickie™ series measures 0.377" (9.57mm), and Assmann WSW AWHW measures 0.354" (9.00mm). These variations affect component clearance and board-level spacing. Design layouts must accommodate the selected substitute's specific insulation height.

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

A: Packaging varies by manufacturer and part number. TE Connectivity 281274-2 is supplied in standard packaging. HARTING parts are available in Bulk or Tray packaging. Amphenol ICC Quickie™ series is supplied in Tube packaging. Assmann WSW AWHW 20G-0202-T is supplied in Tray packaging. Packaging selection affects handling, storage, and assembly processes.

Q: How do contact material differences between brass and copper alloy affect performance?

A: The TE Connectivity 281274-2 uses brass contacts, while most HARTING and Amphenol ICC substitutes use copper alloy or phosphor bronze. These materials provide equivalent electrical conductivity and contact resistance characteristics for standard applications. Material selection reflects manufacturer design practices and does not indicate performance degradation.

Q: What is the difference between gold plating thickness specifications?

A: Contact finish thickness varies across substitutes. The TE Connectivity 281274-2 specifies 15.0µin (0.38µm) gold plating. HARTING parts specify 30.0µin (0.76µm), Amphenol ICC 75869-104LF and 75869-304LF specify 30.0µin and 15.0µin respectively, and Assmann WSW specifies flash finish. Thicker plating provides enhanced corrosion resistance and contact durability in demanding environments.

Q: Are all substitute parts suitable for the same operating temperature range?

A: No. The TE Connectivity 281274-2 does not specify operating temperature. HARTING SEK series operates -55°C to 125°C, Amphenol ICC Quickie™ series does not specify operating temperature, and Assmann WSW AWHW operates -40°C to 105°C. Application temperature requirements must align with selected substitute specifications.

Q: What RoHS and REACH compliance status should be considered for new designs?

A: The TE Connectivity 281274-2 has not applicable RoHS status. All substitute parts are RoHS Compliant or ROHS3 Compliant. REACH status varies: HARTING and Assmann WSW parts are REACH Unaffected, while Amphenol ICC parts are REACH Affected. Regulatory requirements for target markets determine appropriate substitute selection.

Q: Can 75869-204LF with tin-plated mating contacts replace the gold-plated 281274-2?

A: The 75869-204LF provides electrical compatibility with tin-plated mating contacts instead of gold. Tin plating offers cost reduction but reduced corrosion resistance compared to gold. Selection depends on application environment and contact reliability requirements. High-reliability or corrosive environment applications should specify gold-plated alternatives.

Q: How do insulation material differences between PBT and PCT affect connector performance?

A: The TE Connectivity 281274-2 uses polybutylene terephthalate (PBT) glass-filled insulation. HARTING 09195207324 uses polycyclohexylenedimethylene terephthalate (PCT) glass-filled insulation. Both materials provide equivalent electrical insulation, mechanical strength, and thermal stability for standard applications. Material selection reflects manufacturer design practices and does not indicate functional differences.

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