Equivalent & Substitute Parts for M20-8901005

Part Overview

The M20-8901005 is a rectangular connector header manufactured by Harwin Inc., designed for surface mount, right-angle applications with 10 positions at 0.100" (2.54mm) pitch. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The connector features male pins, solder termination, and push-pull fastening, suitable for board-to-board or cable interconnection applications.

Key Parameters

Parameter	M20-8901005
Manufacturer	Harwin Inc.
Connector Type	Header, Cuttable
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	10
Number of Rows	1
Mounting Type	Surface Mount, Right Angle
Termination	Solder
Fastening Type	Push-Pull
Contact Length - Mating	0.236" (6.00mm)
Insulation Height	0.136" (3.46mm)
Contact Shape	Square
Contact Finish - Mating	Gold
Contact Material	Brass
Insulation Material	Polyamide (PA6T), Nylon 6T
Operating Temperature	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0
Insulation Color	Black
Current Rating	3A per Contact
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the M20-8901005 is determined by the following critical parameters: pitch (0.100" / 2.54mm), number of positions (10), mounting type (surface mount, right angle), contact type (male pin), termination method (solder), and fastening type (push-pull). All substitute parts listed maintain these core electrical and mechanical characteristics.

The substitute parts are grouped into two categories:

Category 1: Harwin Inc. M20 Series (Active Status) The M20-8891045 represents the active production equivalent within Harwin's M20 series. This part maintains identical pitch, position count, mounting configuration, and fastening type. The primary difference is the insulation material upgrade from PA6T to PA9T (glass-filled nylon), resulting in a reduced insulation height of 0.098" (2.50mm) versus the original 0.136" (3.46mm).

Category 2: Samtec Inc. TSM Series (Active Status) The TSM series from Samtec provides cross-manufacturer substitutes with identical pitch and position specifications. These parts feature longer contact mating length (0.320" / 8.13mm versus 0.236" / 6.00mm), increased insulation height (0.120" / 3.05mm), and phosphor bronze contact material with liquid crystal polymer (LCP) insulation. Multiple TSM variants accommodate different position loading requirements (all 10 positions loaded or 9 positions loaded) and feature options (board guide, pick and place capability).

Parameter Comparison

Parameter	M20-8901005	M20-8891045	TSM-110-02-F-SH-A	TSM-110-02-G-SH	TSM-110-02-L-SH	TSM-110-02-L-SH-A
Manufacturer	Harwin Inc.	Harwin Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.
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)
Number of Positions	10	10	10	10	10	10
Number of Rows	1	1	1	1	1	1
Mounting Type	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.236" (6.00mm)	0.236" (6.00mm)	0.320" (8.13mm)	0.320" (8.13mm)	0.320" (8.13mm)	0.320" (8.13mm)
Insulation Height	0.136" (3.46mm)	0.098" (2.50mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.120" (3.05mm)
Contact Shape	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold
Contact Material	Brass	Brass	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Polyamide (PA6T)	Polyamide (PA9T), Glass Filled	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°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
Insulation Color	Black	Black	Black	Black	Black	Black
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Harwin Series Continuity: The M20-8891045 is the direct active production replacement within Harwin's M20 series. This part maintains compatibility with existing M20 connector ecosystems and mating hardware. The insulation material change from PA6T to PA9T (glass-filled) provides improved mechanical and thermal properties while maintaining the same operating temperature range and compliance certifications. This option is recommended for designs requiring manufacturer continuity and existing supply chain alignment.

For Cross-Manufacturer Substitution: The Samtec TSM series provides functionally equivalent alternatives with enhanced performance characteristics. All TSM variants maintain the critical 0.100" (2.54mm) pitch, 10-position configuration, surface mount right-angle mounting, and push-pull fastening. The TSM series offers an extended operating temperature range (-55°C to 125°C versus -40°C to 105°C), phosphor bronze contacts for improved durability, and liquid crystal polymer insulation for enhanced chemical resistance. All TSM parts are ROHS3 compliant with MSL 1 rating.

Position Loading Considerations: TSM-110-02-L-SH-001 and TSM-110-02-L-SH-A-009 are configured with 9 positions loaded instead of all 10 positions. These variants are suitable only for applications requiring 9-position connectivity. TSM-110-02-L-SH-A and TSM-110-02-L-SH-A-K maintain full 10-position loading and are direct functional equivalents.

Feature-Specific Variants: TSM-110-02-L-SH-A-010-K-TR and TSM-110-02-L-SH-A-K include pick-and-place features and board guide functionality, beneficial for automated assembly processes. TSM-110-02-F-SH-A includes board guide features without pick-and-place capability.

Frequently Asked Questions (FAQ)

Q: Can M20-8891045 be used as a direct replacement for M20-8901005? A: Yes. Both parts share identical pitch (0.100" / 2.54mm), position count (10), mounting type (surface mount right angle), contact type (male pin), termination (solder), and fastening type (push-pull). The M20-8891045 is the active production equivalent. The primary difference is the insulation material upgrade from PA6T to PA9T (glass-filled), which reduces insulation height from 0.136" to 0.098". Verify PCB layout clearances accommodate the reduced height.

Q: What are the key differences between Harwin M20-8891045 and Samtec TSM-110-02-L-SH-A? A: Both maintain identical pitch and position specifications. The TSM-110-02-L-SH-A features longer contact mating length (0.320" versus 0.236"), phosphor bronze contacts instead of brass, liquid crystal polymer insulation instead of polyamide, and an extended operating temperature range (-55°C to 125°C versus -40°C to 105°C). Insulation height differs: TSM is 0.120" versus Harwin's 0.098" (M20-8891045) or 0.136" (M20-8901005).

Q: Are all TSM-110 variants electrically compatible with M20-8901005? A: All TSM-110 variants listed maintain the same pitch, position count, contact type, termination, and fastening specifications. However, verify position loading: TSM-110-02-L-SH-001 and TSM-110-02-L-SH-A-009 are 9-position variants and are not suitable for 10-position applications. Use TSM-110-02-L-SH-A or TSM-110-02-L-SH-A-K for full 10-position equivalence.

Q: What is the impact of contact length differences between M20-8901005 and TSM series? A: M20-8901005 has 0.236" (6.00mm) mating contact length; TSM series has 0.320" (8.13mm). Longer contacts in TSM parts provide deeper mating engagement. This difference may affect PCB layout, connector cavity depth, and mating force characteristics. Verify mechanical compatibility with mating connectors and PCB design constraints before substitution.

Q: Do all substitute parts meet the same compliance standards as M20-8901005? A: Yes. All listed substitute parts are ROHS3 compliant, UL94 V-0 rated, and have MSL 1 (Unlimited) moisture sensitivity level, matching the original part's compliance profile. All parts are classified as EAR99 for export control purposes.

Q: What packaging options are available for these substitute parts? A: M20-8891045 is supplied in tube packaging. TSM-110-02-F-SH-A and TSM-110-02-L-SH-A are supplied in tube packaging. TSM-110-02-G-SH, TSM-110-02-L-SH-001, TSM-110-02-L-SH-010-K-TR, TSM-110-02-L-SH-A-009, and TSM-110-02-L-SH-A-010-K-TR have unspecified packaging. Confirm packaging requirements with supplier for production planning.

Q: Are pick-and-place variants (TSM-110-02-L-SH-010-K-TR, TSM-110-02-L-SH-A-K) necessary for my application? A: Pick-and-place features are beneficial for automated assembly processes but not required for manual assembly or hand-soldered applications. These variants include board guide functionality in addition to pick-and-place capability. Standard variants (TSM-110-02-L-SH-A) without these features are suitable for applications not requiring automated placement.

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