TE Connectivity 6-87543-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 6-87543-3 is an AMPMODU Mod II rectangular connector header designed for through-hole mounting applications. This unshrouded, vertical-mount header accommodates 26 positions arranged in 2 rows with 0.100" (2.54mm) pitch spacing. The connector features male pins with solder termination and push-pull fastening, suitable for board-to-board or cable interconnection. The part is currently active in production with 1,126 units in stock. Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity for applications requiring compatible 26-position 2.54mm pitch header connectors.

Key Parameters

Parameter	Value
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
Fastening Type	Push-Pull
Shrouding	Unshrouded
Style	Board to Board or Cable
RoHS Status	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 6-87543-3 are qualified based on strict electrical and mechanical compatibility criteria. All substitute parts must maintain the following core parameters:

26 positions in a 2-row configuration
0.100" (2.54mm) mating pitch and 0.100" (2.54mm) row spacing
Male pin contact type with solder termination
Through-hole mounting with push-pull fastening
Unshrouded design
Board-to-board or cable style application

Substitute parts are grouped by manufacturer and series. Variations in contact length, contact finish material, insulation material, and operating temperature ranges are permitted provided the core dimensional and functional parameters remain constant. Contact finish differences (tin versus gold) and insulation material composition (polyamide, polyester, or liquid crystal polymer) do not preclude substitution when mechanical fit and electrical performance requirements are satisfied.

Parameter Comparison

Parameter	6-87543-3 (TE)	892-18-026-10-002101 (Preci-Dip)	929665-01-13-I (3M)	929665-02-13-I (3M)	929665-03-13-EU (3M)	929836-03-13-RK (3M)	A1-26PA-2.54DSA(71) (Hirose)	BBD-113-G-A (Samtec)	HMTSW-113-08-G-D-235 (Samtec)	M20-9721345 (Harwin)	M20-9761346 (Harwin)
Connector Type	Header	Header	Header	Header	Header	Header	Header	Header	Header	Header, Cuttable	Header, Cuttable
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	26	26	26	26	26	26	26	26	26	26	26
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
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Style	Board to Board or Cable	Board to Board	Board to Board	Board to Board	Board to Board	Board to Board	Board to Board or Cable	Board to Board	Board to Board or Cable	Board to Board or Cable	Board to Board or Cable
Contact Length - Mating	0.318" (8.08mm)	0.276" (7.00mm)	0.235" (5.97mm)	0.235" (5.97mm)	0.235" (5.97mm)	0.235" (5.97mm)	0.236" (6.00mm)	0.125" (3.18mm)	0.235" (5.97mm)	0.276" (7.00mm)	0.228" (5.80mm)
Contact Length - Post	0.125" (3.18mm)	0.118" (3.00mm)	0.110" (2.79mm)	0.210" (5.33mm)	0.410" (10.41mm)	0.410" (10.41mm)	0.118" (3.00mm)	0.125" (3.18mm)	0.195" (4.95mm)	0.122" (3.10mm)	0.122" (3.10mm)
Overall Contact Length	0.533" (13.55mm)	0.494" (12.54mm)	0.445" (11.30mm)	0.545" (13.84mm)	0.745" (18.92mm)	0.745" (18.92mm)	0.454" (11.54mm)	0.460" (11.68mm)	0.530" (13.46mm)	0.496" (12.60mm)	0.452" (11.48mm)
Insulation Height	0.090" (2.29mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.211" (5.35mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Shape	Not Specified	Square	Square	Square	Square	Square	Square	Circular	Square	Square	Square
Contact Finish - Mating	Tin	Gold	Gold	Gold	Gold	Tin	Gold	Gold	Gold	Tin
Contact Material	Phosphor Bronze	Brass	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Brass	Not Specified	Phosphor Bronze	Brass	Brass
Insulation Material	Polyamide (PA), Nylon, Glass Filled	Polyamide (PA), Nylon, Glass Filled	Polybutylene Terephthalate (PBT), Polyester, Glass Filled	Polybutylene Terephthalate (PBT), Polyester, Glass Filled	Polycyclohexylenedimethylene Terephthalate (PCT)	Polycyclohexylenedimethylene Terephthalate (PCT)	Polybutylene Terephthalate (PBT)	Polyester, Glass Filled	Liquid Crystal Polymer (LCP)	Polyamide (PA6T), Nylon 6T	Polyamide (PA6T), Nylon 6T
Operating Temperature	Not Specified	-55°C ~ 125°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C	-55°C ~ 85°C	-55°C ~ 125°C	-55°C ~ 125°C	-40°C ~ 105°C	-40°C ~ 105°C
Current Rating (Amps)	Not Specified	3A	2.5A	2.5A	2.5A	2.5A	3A	Not Specified	3A per Contact	3A per Contact
RoHS Status	RoHS Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Not Applicable	1 (Unlimited)	Not Applicable	1 (Unlimited)	1 (Unlimited)	Not Applicable	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

All listed substitute parts maintain active product status and satisfy core mechanical and electrical compatibility requirements for the TE Connectivity 6-87543-3. Selection among substitutes should be based on the following engineering criteria:

RoHS and Regulatory Compliance: All substitute parts are RoHS compliant or ROHS3 compliant. Parts designated ROHS3 compliant (892-18-026-10-002101, BBD-113-G-A, M20-9721345, M20-9761346, HMTSW-113-08-G-D-235) meet the most current regulatory requirements and are suitable for applications with stringent compliance mandates.

Operating Temperature Range: Applications requiring extended temperature operation should prioritize parts with -55°C to 125°C ratings: 892-18-026-10-002101 (Preci-Dip), BBD-113-G-A (Samtec), and HMTSW-113-08-G-D-235 (Samtec). Applications limited to -40°C to 105°C operation may utilize 929665 series (3M), 929836-03-13-RK (3M), M20-9721345 (Harwin), and M20-9761346 (Harwin). The A1-26PA-2.54DSA(71) (Hirose) operates within -55°C to 85°C range.

Current Rating: Parts rated for 3A per contact (892-18-026-10-002101, A1-26PA-2.54DSA(71), M20-9721345, M20-9761346) support higher current applications compared to 3M 929 series parts rated at 2.5A per contact.

Contact Length Variations: Contact post length varies significantly across substitutes, ranging from 0.110" (2.79mm) to 0.410" (10.41mm). Selection must account for PCB thickness and mating connector depth requirements. The 929665-03-13-EU and 929836-03-13-RK variants feature extended post lengths (0.410" / 10.41mm) suitable for thicker PCB assemblies.

Packaging Considerations: Bulk packaging is standard for most substitutes. The A1-26PA-2.54DSA(71) (Hirose) is supplied in tray packaging, and BBD-113-G-A (Samtec) is supplied in tube packaging. Packaging selection impacts handling, storage, and automated assembly processes.

Cuttable Header Options: M20-9721345 and M20-9761346 (Harwin) offer cuttable header functionality, enabling field customization of position count when full 26-position headers are not required.

Frequently Asked Questions (FAQ)

Q: What are the critical parameters that determine if a part can substitute for the TE Connectivity 6-87543-3?

A: The following parameters must match exactly: 26 positions, 2-row configuration, 0.100" (2.54mm) mating pitch, 0.100" (2.54mm) row spacing, male pin contact type, solder termination, through-hole mounting, push-pull fastening, and unshrouded design. All listed substitute parts satisfy these core requirements.

Q: Can I use a substitute part with a different contact finish (gold instead of tin)?

A: Yes. Contact finish differences between tin and gold do not preclude substitution. Both finishes provide adequate electrical conductivity and corrosion resistance for standard applications. Gold-plated contacts (929665 series, A1-26PA-2.54DSA(71), BBD-113-G-A, HMTSW-113-08-G-D-235) offer enhanced corrosion resistance in high-humidity or corrosive environments. Tin-plated contacts (6-87543-3, M20-9761346, 929836-03-13-RK) are suitable for standard industrial applications.

Q: Does insulation material affect substitutability?

A: Insulation material variations (polyamide, polyester, polybutylene terephthalate, liquid crystal polymer, or polycyclohexylenedimethylene terephthalate) do not preclude substitution provided mechanical fit and electrical performance are maintained. Material selection impacts operating temperature range, flammability rating, and moisture absorption characteristics. All listed substitutes employ materials rated UL94 V-0 or equivalent, ensuring flame resistance.

Q: What is the significance of contact length variations?

A: Contact length variations affect mating depth and PCB thickness compatibility. The main part (6-87543-3) features a contact post length of 0.125" (3.18mm). Substitutes range from 0.110" (2.79mm) to 0.410" (10.41mm). Longer post lengths accommodate thicker PCBs or deeper mating connectors. Shorter post lengths suit thin PCB assemblies. Verify PCB thickness and mating connector specifications before selecting a substitute with significantly different contact length.

Q: Are all substitute parts suitable for my application if my design operates at -55°C?

A: No. The A1-26PA-2.54DSA(71) (Hirose) operates only to -55°C to 85°C and is not suitable for applications requiring sustained operation below -40°C. The 892-18-026-10-002101 (Preci-Dip), BBD-113-G-A (Samtec), and HMTSW-113-08-G-D-235 (Samtec) support -55°C operation. Verify the operating temperature range of your application and select substitutes accordingly.

Q: What is the difference between RoHS and ROHS3 compliance?

A: RoHS Compliant indicates compliance with the original Restriction of Hazardous Substances Directive. ROHS3 Compliant indicates compliance with the updated directive including additional restricted substances. ROHS3 compliance is more stringent and suitable for applications with current regulatory requirements. Both designations are acceptable for most applications; however, ROHS3 compliance is preferred for new designs and applications subject to evolving environmental regulations.

Q: Can I use a cuttable header (M20-9721345 or M20-9761346) in place of a standard header?

A: Yes. Cuttable headers are fully compatible with standard 26-position applications. The cuttable feature allows field customization to reduce position count if required. If your application requires exactly 26 positions without customization, standard headers are equally suitable.

Q: How does packaging type affect my selection?

A: Packaging type (bulk, tray, or tube) impacts handling, storage, and automated assembly compatibility. Bulk packaging is standard for high-volume production. Tray packaging (A1-26PA-2.54DSA(71)) and tube packaging (BBD-113-G-A) may require different feeder systems for automated assembly. Verify packaging compatibility with your assembly process before selection.

Q: Are there inventory considerations when selecting a substitute?

A: Yes. Inventory levels vary across substitutes. The main part (6-87543-3) has 1,126 units in stock. M20-9761346 (Harwin) has the highest inventory at 4,689 units, while A1-26PA-2.54DSA(71) (Hirose) has the lowest at 682 units. For applications requiring immediate availability, prioritize parts with higher inventory levels.

Q: What current rating should I select for my application?

A: Current rating depends on your circuit requirements. Parts rated 3A per contact (892-18-026-10-002101, A1-26PA-2.54DSA(71), M20-9721345, M20-9761346) support higher current applications. Parts rated 2.5A per contact (929665 series, 929836-03-13-RK) are suitable for standard signal and moderate power applications. Verify your application's current requirements and select accordingly.

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