M20-6113205 Equivalent & Substitute Parts

Part Overview

The M20-6113205 is a 64-position non-stackthrough, unkeyed PC/104 backplane connector manufactured by Harwin Inc. This through-hole solder-terminated connector is designed for PC/104 form factor applications requiring board-to-board interconnection. The part is currently obsolete, making identification of functionally equivalent alternatives essential for system redesign, repair, and production continuity.

Key Parameters

Parameter	M20-6113205
Manufacturer	Harwin Inc.
Category	Backplane Connectors
Connector Type	Non-Stackthrough, Unkeyed (PC/104)
Connector Style	PC/104
Number of Positions	64
Pitch	0.100" (2.54mm)
Number of Rows	2
Mounting Type	Through Hole
Termination	Solder
Contact Finish	Gold
Current Rating	3A
Operating Temperature	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the M20-6113205 are grouped based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

Connector Style: PC/104 form factor
Pitch: 0.100" (2.54mm)
Mounting Type: Through Hole
Number of Rows: 2
Material Flammability Rating: UL94 V-0
Operating Temperature Range: -55°C ~ 105°C minimum

Substitute Categories:

Category 1: Direct Harwin Equivalent (Active Status) M20-6113245 maintains identical electrical and mechanical specifications to the M20-6113205 with the exception of product status (Active vs. Obsolete) and packaging format (Tube vs. standard). This part is the primary recommended substitute within the Harwin M20 series.

Category 2: Harwin Stackthrough Variant M20-6152005 shares the PC/104 form factor, pitch, through-hole mounting, and temperature range. However, this part differs in connector type (Stackthrough vs. Non-Stackthrough), position count (40 vs. 64), termination method (Press-Fit vs. Solder), and current rating (1A vs. 3A). Selection requires verification that stackthrough functionality and reduced position count are acceptable for the application.

Category 3: TE Connectivity AMPMODU Series 1375963-1 and 1375963-3 are non-stackthrough PC/104 connectors with identical pitch, mounting type, and temperature range. These parts differ in position count (104 vs. 64), row configuration (4 vs. 2), keying (Keyed vs. Unkeyed), and number of loaded positions (102 vs. 64). These represent higher-density alternatives suitable for applications requiring expanded I/O capacity.

Category 4: Samtec ESQ Series ESQ-132-14-G-D is a board-to-board elevated socket connector with matching pitch, through-hole mounting, and temperature range. This part differs fundamentally in connector classification (Rectangular vs. PC/104 Backplane), contact type (Elevated Socket vs. standard), and position arrangement. This represents a cross-category alternative for applications where PC/104 form factor is not mandatory.

Parameter Comparison

Parameter	M20-6113205	M20-6113245	M20-6152005	1375963-1	1375963-3	ESQ-132-14-G-D
Manufacturer	Harwin Inc.	Harwin Inc.	Harwin Inc.	TE Connectivity	TE Connectivity	Samtec Inc.
Connector Style	PC/104	PC/104	PC/104	PC/104	PC/104	Board to Board
Connector Type	Non-Stackthrough, Unkeyed	Non-Stackthrough, Unkeyed	Stackthrough, Unkeyed + Organizer	Non-Stackthrough, Keyed	Non-Stackthrough, Keyed	Elevated Socket
Number of Positions	64	64	40	104	104	64
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	2	2	2	4	4	2
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Press-Fit	Solder	Solder	Solder
Contact Finish	Gold	Gold	Gold	Gold	Gold	Gold
Current Rating	3A	3A	1A	Not specified	Not specified	5.7A per Contact
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	Not applicable	RoHS Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Recommendation: M20-6113245

The M20-6113245 is the optimal substitute for the M20-6113205. Both parts are manufactured by Harwin Inc. within the M20 series and maintain identical electrical and mechanical specifications: 64 positions, 0.100" pitch, 2-row configuration, through-hole solder termination, 3A current rating, and -55°C to 105°C operating temperature range. The M20-6113245 is currently in active production status with ROHS3 compliance and UL94 V-0 flammability rating. Packaging is supplied in Tube format. No design modifications are required for direct substitution.

Secondary Recommendation: 1375963-3

The 1375963-3 (TE Connectivity AMPMODU series) is suitable for applications where increased I/O density is beneficial. This part maintains PC/104 form factor, 0.100" pitch, through-hole solder termination, and identical operating temperature range. The 104-position, 4-row configuration provides expanded connectivity compared to the 64-position original. The part is RoHS Compliant with UL94 V-0 rating. PCB layout modifications are required to accommodate the increased row count and keyed connector design.

Tertiary Recommendation: M20-6152005

The M20-6152005 is applicable only when stackthrough functionality is required and reduced I/O capacity (40 positions) is acceptable. This part uses press-fit termination instead of solder and carries a reduced current rating of 1A. Selection of this part requires verification that the application supports stackthrough connector architecture and can operate within the 1A current constraint.

Not Recommended for Direct Substitution: ESQ-132-14-G-D

The ESQ-132-14-G-D represents a cross-category connector (Rectangular vs. PC/104 Backplane) and is suitable only for applications where PC/104 form factor compliance is not mandatory. While this part shares 0.100" pitch, through-hole mounting, and solder termination, the elevated socket design and board-to-board classification require significant PCB redesign and mechanical integration changes.

Frequently Asked Questions (FAQ)

Q: Can M20-6113245 be used as a direct replacement for M20-6113205 without PCB modifications?

A: Yes. The M20-6113245 maintains identical pin count (64), pitch (0.100"), row configuration (2), mounting type (through-hole), and termination method (solder). No PCB layout changes are required. The only difference is product status (Active vs. Obsolete) and packaging format (Tube).

Q: What is the key difference between the M20-6113205 and M20-6152005?

A: The M20-6152005 is a stackthrough connector with 40 positions and press-fit termination, compared to the non-stackthrough, 64-position, solder-terminated M20-6113205. Stackthrough connectors allow daughter cards to be stacked vertically. The M20-6152005 also has a reduced current rating of 1A versus 3A. These parts are not interchangeable without significant design changes.

Q: Are the TE Connectivity 1375963-1 and 1375963-3 parts interchangeable with the M20-6113205?

A: These parts share PC/104 form factor, pitch, and operating temperature range but differ in position count (104 vs. 64), row configuration (4 vs. 2), and keying (Keyed vs. Unkeyed). They are not pin-compatible without PCB redesign. The higher position count makes them suitable for applications requiring expanded I/O, but they require new PCB layout and connector footprint design.

Q: What is the significance of the "Unkeyed" designation on the M20-6113205?

A: Unkeyed connectors lack a polarization feature and can be inserted in any orientation. The TE Connectivity alternatives (1375963-1 and 1375963-3) are keyed, meaning they have a mechanical feature that prevents incorrect mating orientation. This difference requires PCB footprint modification if switching between keyed and unkeyed designs.

Q: Can the ESQ-132-14-G-D replace the M20-6113205 in a PC/104 system?

A: The ESQ-132-14-G-D is not a PC/104 form factor connector and cannot be used in systems requiring PC/104 compliance. While it shares 0.100" pitch and through-hole mounting, it is classified as a rectangular board-to-board connector with elevated socket design. Use of this part requires complete mechanical and electrical redesign of the interconnect architecture.

Q: What compliance certifications are maintained across all substitute options?

A: All substitute parts maintain UL94 V-0 material flammability rating and operate within the -55°C to 105°C temperature range (ESQ-132-14-G-D extends to 125°C). RoHS compliance status varies: M20-6113245 and ESQ-132-14-G-D are ROHS3 Compliant; M20-6152005 is ROHS3 Compliant; 1375963-3 is RoHS Compliant; 1375963-1 has RoHS status listed as Not applicable. Verify compliance requirements for your specific application before final part selection.

Q: What is the difference in contact finish thickness between the M20-6113205 and substitute parts?

A: The M20-6113205 specifies 3.00µin (0.076µm) gold contact finish thickness. The M20-6113245 maintains identical thickness. The M20-6152005 specifies 10.0µin (0.25µm). The TE Connectivity parts (1375963-1 and 1375963-3) specify 15.0µin (0.38µm). The ESQ-132-14-G-D specifies 20.0µin (0.51µm) for mating contacts and 3.00µin (0.076µm) for post contacts. Thicker finishes provide enhanced wear resistance for high-cycle mating applications.

Q: Is packaging format (Tube vs. Bulk) a consideration for substitution?

A: Packaging format affects handling, storage, and assembly processes but does not impact electrical or mechanical compatibility. The M20-6113205 is supplied in standard packaging; M20-6113245 is supplied in Tube; TE Connectivity parts are supplied in Bulk; ESQ-132-14-G-D is supplied in Tube. Verify packaging compatibility with your procurement and assembly workflows.

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