M20-9992145 Equivalent & Substitute Parts

Part Overview

The Harwin M20-9992145 is a rectangular connector header designed for through-hole mounting with 21 positions at 0.100" (2.54mm) pitch. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design work, maintenance, and production continuity. The part serves board-to-board or cable connection applications requiring unshrouded, solder-terminated male pin headers with push-pull fastening.

Key Parameters

Parameter	M20-9992145 (Harwin)
Connector Type	Header, Cuttable
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	21
Number of Rows	1
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Shrouding	Unshrouded
Operating Temperature	-40°C ~ 105°C
Current Rating	3A per Contact
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the M20-9992145 is determined by strict alignment with the following critical parameters:

Connector type: Header configuration (cuttable, breakaway, or standard)
Contact type: Male pin
Pitch: 0.100" (2.54mm) mating pitch
Number of positions: 21
Number of rows: 1
Mounting: Through-hole solder termination
Fastening: Push-pull mechanism
Shrouding: Unshrouded
Current rating: 3A per contact minimum
Flammability: UL94 V-0
RoHS compliance: ROHS3 or equivalent

All four substitute parts meet these core criteria. Variations in contact length, insulation height, contact material, and operating temperature range are secondary parameters that may affect specific application requirements but do not disqualify substitution eligibility.

Parameter Comparison

Parameter	M20-9992145 (Harwin)	0022284213 (Molex)	77311-101-21LF (Amphenol ICC)	77311-102-21LF (Amphenol ICC)	77311-118-21LF (Amphenol ICC)	890-70-021-10-001101 (Preci-Dip)
Connector Type	Header, Cuttable	Header, Breakaway	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
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	21	21	21	21	21	21
Number of Rows	1	1	1	1	1	1
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Contact Length - Mating	0.240" (6.10mm)	0.240" (6.10mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.236" (6.00mm)
Contact Length - Post	0.118" (3.00mm)	0.125" (3.18mm)	0.095" (2.41mm)	0.135" (3.43mm)	0.120" (3.05mm)	0.122" (3.10mm)
Overall Contact Length	0.460" (11.68mm)	0.455" (11.56mm)	0.425" (10.80mm)	0.465" (11.81mm)	0.450" (11.43mm)	0.458" (11.64mm)
Insulation Height	0.100" (2.54mm)	0.090" (2.29mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Shape	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold
Current Rating	3A per Contact	Not specified	3A per Contact	3A per Contact	3A per Contact	3A
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	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All four substitute parts are active products with current manufacturing support, addressing the obsolescence of the M20-9992145. Selection among substitutes should be based on the following factors:

Molex 0022284213: Active product with ROHS3 compliance and MSL 1 rating. Insulation height of 0.090" (2.29mm) is 0.010" lower than the original part. Contact post length of 0.125" (3.18mm) is slightly longer. Suitable for applications where minor dimensional variations are acceptable.

Amphenol ICC 77311-101-21LF, 77311-102-21LF, 77311-118-21LF: All three variants are active BERGSTIK® series products with RoHS compliance and MSL 1 rating. Operating temperature range extends to -65°C ~ 125°C, exceeding the original part's -40°C ~ 105°C range. Contact post lengths vary: 0.095" (2.41mm), 0.135" (3.43mm), and 0.120" (3.05mm) respectively. Selection among these three depends on required post length for specific PCB stack-up requirements. All three maintain 0.100" (2.54mm) insulation height matching the original part.

Preci-Dip 890-70-021-10-001101: Active product with ROHS3 compliance, MSL 1 rating, and specified voltage rating of 150VDC. Operating temperature range of -55°C ~ 125°C exceeds the original part. Contact dimensions closely match the original part. Suitable for applications requiring voltage specification documentation.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the M20-9992145?

A: All four substitute parts meet the core functional requirements: 21-position, 0.100" (2.54mm) pitch, through-hole solder-terminated male pin headers with push-pull fastening and unshrouded configuration. However, variations in contact post length and insulation height may affect PCB stack-up and mating depth. Verify these dimensions against your specific application requirements before selection.

Q: What is the primary difference between the three Amphenol ICC variants?

A: The three BERGSTIK® series parts (77311-101-21LF, 77311-102-21LF, 77311-118-21LF) differ only in contact post length: 0.095" (2.41mm), 0.135" (3.43mm), and 0.120" (3.05mm) respectively. All other electrical and mechanical parameters are identical. Selection depends on the required insertion depth into the mating connector or PCB thickness.

Q: Does the Molex 0022284213 have a lower insulation height than the original part?

A: Yes. The Molex part has an insulation height of 0.090" (2.29mm) compared to the original M20-9992145 at 0.100" (2.54mm). This 0.010" difference may affect board-to-board spacing in constrained designs. Verify compatibility with your mating connector specifications.

Q: Are all substitute parts RoHS compliant?

A: Yes. The Molex and Preci-Dip parts are ROHS3 compliant. The three Amphenol ICC variants are RoHS compliant. All parts meet environmental compliance requirements for current manufacturing standards.

Q: What is the operating temperature range for each substitute?

A: The original M20-9992145 operates from -40°C to 105°C. The Molex 0022284213 does not specify an operating temperature range. The three Amphenol ICC parts and Preci-Dip part all extend to -65°C to 125°C, providing wider temperature coverage than the original part.

Q: Which substitute part most closely matches the original M20-9992145 dimensions?

A: The Preci-Dip 890-70-021-10-001101 provides the closest dimensional match with contact length mating of 0.236" (6.00mm) versus the original 0.240" (6.10mm), and contact post length of 0.122" (3.10mm) versus the original 0.118" (3.00mm). Overall contact length is 0.458" (11.64mm) compared to the original 0.460" (11.68mm).

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message