M20-8761346P Equivalent & Substitute Parts

Part Overview

The Harwin M20-8761346P is a surface mount rectangular connector header with 26 positions at 0.100" (2.54mm) pitch, designed for board-to-board or cable applications. This part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The M20 series provides a cuttable header configuration with unshrouded design and push-pull fastening, suitable for applications requiring 3A per contact at 250V operating conditions.

Key Parameters

Parameter	Value
Manufacturer Part Number	M20-8761346P
Manufacturer	Harwin Inc.
Category	Rectangular Connectors
Connector Type	Header, Cuttable
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	Surface Mount
Termination	Solder
Contact Length - Mating	0.228" (5.80mm)
Insulation Height	0.100" (2.54mm)
Contact Material	Brass
Contact Finish - Mating	Tin
Current Rating	3A per Contact
Voltage Rating	250V
Operating Temperature	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the M20-8761346P is determined by strict electrical and mechanical compatibility across the following critical parameters:

Primary Matching Criteria:

Number of Positions: 26
Number of Rows: 2
Pitch - Mating: 0.100" (2.54mm)
Row Spacing - Mating: 0.100" (2.54mm)
Mounting Type: Surface Mount
Termination: Solder
Contact Type: Male Pin
Fastening Type: Push-Pull
Insulation Height: 0.100" (2.54mm)
Contact Shape: Square
Current Rating: 3A per Contact
Material Flammability Rating: UL94 V-0

Acceptable Variations:

Contact Material: Brass (original) to Phosphor Bronze (substitutes)
Contact Finish - Mating: Tin (original) to Gold or Tin (substitutes)
Contact Length - Mating: 0.228" (5.80mm) to 0.232" (5.90mm)
Operating Temperature: -40°C ~ 105°C (original) to -65°C ~ 125°C (substitutes)
Packaging: Varies by substitute variant
Connector Type: Header, Cuttable (original) to Header, Breakaway (substitutes)

The Amphenol ICC (FCI) BERGSTIK® series 95278 parts meet all critical electrical and mechanical parameters while offering active product status and improved temperature range performance.

Parameter Comparison

Parameter	M20-8761346P (Main)	M20-8761346	95278-101-26LF	95278-101A26LF	95278-101B26LF	95278-401-26LF	95278-401A26LF	95278-401B26LF	95278-801-26LF	95278-801A26LF	95278-801B26LF
Manufacturer	Harwin Inc.	Harwin Inc.	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)
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	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Contact Length - Mating	0.228" (5.80mm)	0.228" (5.80mm)	0.232" (5.90mm)	0.232" (5.90mm)	0.232" (5.90mm)	0.232" (5.90mm)	0.232" (5.90mm)	0.232" (5.90mm)	0.232" (5.90mm)	0.232" (5.90mm)	0.232" (5.90mm)
Insulation Height	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)
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
Contact Material	Brass	Brass	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Finish - Mating	Tin	Tin	Gold, GXT™	Gold, GXT™	Gold, GXT™	Tin	Tin	Tin	Gold, GXT™	Gold, GXT™	Gold, GXT™
Current Rating	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C
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
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
Packaging	—	Bulk	Bulk	Tape & Reel (TR)	Tube	Bag	Tape & Reel (TR)	Tube	Bulk	Tape & Reel (TR)	Tube

Engineering Selection Recommendations

Primary Substitute: M20-8761346

The M20-8761346 is the direct equivalent from Harwin Inc., maintaining identical electrical and mechanical specifications to the M20-8761346P while offering active product status. This part is recommended for applications requiring exact parameter matching and continuity within the Harwin M20 series ecosystem.

Secondary Substitutes: Amphenol ICC (FCI) BERGSTIK® 95278 Series

The 95278 series provides full electrical and mechanical compatibility with enhanced performance characteristics. All variants meet the critical 26-position, 2-row, 0.100" pitch configuration with 3A per contact current rating and UL94 V-0 flammability compliance. The extended operating temperature range (-65°C ~ 125°C) exceeds the original specification, providing thermal margin for demanding applications.

Packaging Variants:

95278-101-26LF (Bulk, Gold finish): Standard production packaging for high-volume applications
95278-101A26LF (Tape & Reel, Gold finish): Automated assembly and pick-and-place compatible
95278-101B26LF (Tube, Gold finish): Manual assembly and lower-volume production
95278-401-26LF (Bag, Tin finish): Cost-optimized variant with tin contact finish
95278-401A26LF (Tape & Reel, Tin finish): Automated assembly with tin contact finish
95278-401B26LF (Tube, Tin finish): Manual assembly with tin contact finish
95278-801-26LF (Bulk, Gold finish, reduced thickness): Thin-profile variant for space-constrained applications
95278-801A26LF (Tape & Reel, Gold finish, reduced thickness): Automated assembly, thin-profile
95278-801B26LF (Tube, Gold finish, reduced thickness): Manual assembly, thin-profile

Compliance Status:

All substitute parts maintain RoHS compliance and UL94 V-0 flammability certification. The Amphenol ICC parts carry REACH Affected status, requiring verification against specific application regulatory requirements. The M20-8761346 maintains ROHS3 Compliant and REACH Unaffected status, matching the original part's compliance profile.

Frequently Asked Questions (FAQ)

Q: Can I use the 95278 series as a direct replacement for the M20-8761346P?

A: Yes. The 95278 series meets all critical electrical and mechanical parameters: 26 positions, 2 rows, 0.100" pitch, 3A per contact, 250V minimum voltage rating, and UL94 V-0 flammability. The 0.004" (0.10mm) difference in contact length (0.232" vs. 0.228") and extended temperature range represent performance improvements rather than incompatibilities.

Q: What is the difference between the 95278-101, 95278-401, and 95278-801 variants?

A: The primary differences are contact finish and thickness specifications. The 95278-101 and 95278-801 feature gold plating (GXT™) on mating contacts, while 95278-401 uses tin finish. The 95278-801 series has reduced contact finish thickness (15.0µin vs. 30.0µin for 95278-101), optimizing for applications with space or weight constraints. All three maintain identical electrical performance and current ratings.

Q: Which packaging should I select for my application?

A: Packaging selection depends on assembly method and volume requirements. Tape & Reel (TR) variants (101A, 401A, 801A) are optimized for automated pick-and-place assembly. Bulk variants (101, 401, 801) suit manual assembly and lower-volume production. Tube variants (101B, 401B, 801B) provide intermediate packaging for manual assembly with organized component handling. Bag packaging (401) is available for the tin-finish variant only.

Q: Is the M20-8761346 (non-P variant) a suitable substitute?

A: Yes. The M20-8761346 is the active production equivalent of the obsolete M20-8761346P, with identical specifications and Harwin manufacturing. It maintains ROHS3 Compliant and REACH Unaffected status, providing continuity within the Harwin product line.

Q: What are the compliance implications of switching to the 95278 series?

A: The 95278 series maintains RoHS compliance and UL94 V-0 certification. However, these parts carry REACH Affected status, whereas the original M20-8761346P is REACH Unaffected. Applications subject to REACH regulations must verify compatibility with the specific substance restrictions applicable to the 95278 series before implementation.

Q: Can I mix contact finishes (gold and tin) in the same assembly?

A: Contact finish selection should be consistent within a mating pair to ensure optimal electrical performance and contact reliability. Mixing gold and tin finishes across different connector positions in the same assembly is not recommended without specific application validation.

Q: What is the significance of the "Breakaway" connector type in the 95278 series?

A: The Breakaway configuration allows individual positions to be separated from the header strip, providing flexibility in custom connector configurations. This differs from the Cuttable design of the original M20 series but maintains full compatibility for standard 26-position applications where the complete header is used.

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