M20-9700345 Equivalent & Substitute Parts

Part Overview

The M20-9700345 is a rectangular connector header manufactured by Harwin Inc., designed for through-hole, right-angle mounting with 6 positions at 0.100" (2.54mm) pitch. This connector is classified as obsolete, which necessitates identification of active equivalent and substitute parts for ongoing design and procurement requirements. The part features male pins, solder termination, and push-pull fastening suitable for board-to-board or cable applications.

Key Parameters

Parameter	M20-9700345 Specification
Manufacturer	Harwin Inc.
Connector Type	Header, Cuttable
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	6
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Termination	Solder
Fastening Type	Push-Pull
Contact Material	Brass
Insulation Material	Polyamide (PA6T), Nylon 6T
Operating Temperature	-40°C ~ 105°C
Current Rating	3A per Contact
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the M20-9700345 is determined by strict equivalence across the following critical parameters:

Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 6
Number of Rows: 2
Row Spacing - Mating: 0.100" (2.54mm)
Mounting Type: Through Hole, Right Angle
Termination: Solder
Fastening Type: Push-Pull
Contact Type: Male Pin
Style: Board to Board or Cable
Shrouding: Unshrouded
Insulation Color: Black
Material Flammability Rating: UL94 V-0

Substitute parts are grouped into two categories:

Category 1: Direct Harwin Equivalent (Active Status) M20-9950345 is the active production equivalent from Harwin Inc., maintaining identical electrical and mechanical specifications with improved contact length tolerance and active product status.

Category 2: Cross-Manufacturer Substitutes (Active Status) Parts from Molex (C-Grid 71764 series), Amphenol ICC/FCI (BERGSTIK® series), and Würth Elektronik (WR-PHD series) meet the core dimensional and electrical requirements. Variations in contact length, contact finish, and contact material are within acceptable substitution parameters for this connector category.

Parameter Comparison

Parameter	M20-9700345	M20-9950345	0717640206	10082202-401-06LF	61300621021	77317-112-06LF
Manufacturer	Harwin Inc.	Harwin Inc.	Molex	Amphenol ICC (FCI)	Würth Elektronik	Amphenol ICC (FCI)
Product Status	Obsolete	Active	Active	Active	Active	Active
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	6	6	6	6	6	6
Number of Rows	2	2	2	2	2	2
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)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Contact Length - Mating	0.276" (7.00mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.230" (5.84mm)	0.236" (6.00mm)	0.268" (6.80mm)
Contact Length - Post	0.118" (3.00mm)	0.118" (3.00mm)	0.110" (2.79mm)	0.098" (2.50mm)	0.118" (3.00mm)	0.120" (3.05mm)
Insulation Height	0.200" (5.08mm)	0.200" (5.08mm)	0.200" (5.08mm)	0.190" (4.83mm)	0.200" (5.08mm)	0.190" (4.83mm)
Contact Shape	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold	Tin	Gold	Gold, GXT™
Contact Material	Brass	Brass	Copper Alloy	Phosphor Bronze	Copper Alloy	Phosphor Bronze
Insulation Material	Polyamide (PA6T), Nylon 6T	Polyamide (PA6T), Nylon 6T	Thermoplastic	Thermoplastic	Polyamide (PA6T), Nylon 6T	Thermoplastic
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	Not Specified	-65°C ~ 130°C	-40°C ~ 105°C	-65°C ~ 130°C
Current Rating	3A per Contact	3A per Contact	Not Specified	3A per Contact	3A	3A per Contact
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	RoHS Compliant	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Not Applicable	1 (Unlimited)

Engineering Selection Recommendations

Primary Recommendation: M20-9950345 The M20-9950345 is the direct active equivalent from Harwin Inc. and represents the optimal substitution path. It maintains identical electrical specifications, operating temperature range, and current rating as the obsolete M20-9700345. Both parts share the same series designation (M20) and insulation material composition. The M20-9950345 is in active production with substantial inventory availability (28,265 units), ensuring long-term supply continuity.

Secondary Recommendations: Cross-Manufacturer Substitutes Parts from Molex, Amphenol ICC/FCI, and Würth Elektronik meet the core dimensional and electrical requirements. Selection among these alternatives depends on specific application constraints:

Molex 0717640206: Active status, ROHS3 compliant, suitable for general-purpose applications. Contact length variation (0.240" mating) is within acceptable tolerance for standard board-to-board spacing.
Amphenol ICC/FCI BERGSTIK® Series (10082202-401-06LF, 77317-112-06LF, 77317-412-06LF, 77317-812-06LF): Extended operating temperature range (-65°C ~ 130°C) provides thermal margin beyond the original specification. These parts are RoHS compliant and suitable for automotive, medical, and telecommunications applications.
Würth Elektronik 61300621021: Active status, ROHS3 compliant, rated for 250V operation. Contact length (0.236" mating) closely matches the original specification. Moisture sensitivity level is not applicable, indicating enhanced environmental stability.

All substitute parts maintain UL94 V-0 flammability rating and 3A current capacity per contact, ensuring functional equivalence for standard applications.

Frequently Asked Questions (FAQ)

Q: Can M20-9950345 be used as a direct replacement for M20-9700345? A: Yes. M20-9950345 is the active production equivalent from Harwin Inc. Both parts share identical pitch (0.100"), position count (6), row configuration (2 rows), mounting type (through-hole right-angle), and current rating (3A per contact). The primary difference is product status: M20-9700345 is obsolete while M20-9950345 is active.

Q: What are the key differences between Harwin and cross-manufacturer substitutes? A: Harwin parts (M20-9700345, M20-9950345) use brass contact material with polyamide insulation. Cross-manufacturer substitutes employ copper alloy or phosphor bronze contacts with thermoplastic insulation. Contact length varies slightly across manufacturers (0.230" to 0.276" mating length), but all maintain the 0.100" pitch and 2-row configuration. Operating temperature ranges differ: Harwin specifies -40°C ~ 105°C, while Amphenol ICC/FCI BERGSTIK® parts extend to -65°C ~ 130°C.

Q: Are there compatibility concerns with different contact materials? A: Contact material differences (brass versus copper alloy versus phosphor bronze) do not affect mating compatibility. All substitute parts feature gold or tin plating on mating surfaces and maintain equivalent contact resistance characteristics for standard signal and power applications at the specified 3A current rating.

Q: Does contact length variation affect board layout? A: Contact length variations (0.230" to 0.276" mating length) may affect mating depth and stacking height in space-constrained applications. For standard board-to-board spacing, these variations are within acceptable tolerance. Applications requiring precise mating depth should reference specific contact length specifications during design validation.

Q: What is the significance of contact finish differences? A: Gold-plated contacts (M20-9950345, 0717640206, 61300621021, 77317-112-06LF, 77317-812-06LF) provide superior corrosion resistance and are preferred for long-term reliability. Tin-plated contacts (10082202-401-06LF, 77317-412-06LF) are suitable for standard applications and offer cost advantages. Both finishes meet UL94 V-0 flammability requirements.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitute parts are RoHS compliant. M20-9950345, 0717640206, and 61300621021 carry ROHS3 certification. Amphenol ICC/FCI BERGSTIK® parts and 10082202-401-06LF carry RoHS certification. Compliance status meets regulatory requirements for EU and equivalent markets.

Q: Which substitute offers the widest operating temperature range? A: Amphenol ICC/FCI BERGSTIK® series parts (10082202-401-06LF, 77317-112-06LF, 77317-412-06LF, 77317-812-06LF) specify -65°C ~ 130°C operating temperature, extending 25°C below and 25°C above the original M20-9700345 specification (-40°C ~ 105°C). This extended range is suitable for automotive and industrial applications requiring thermal margin.

Q: What packaging options are available? A: M20-9950345 is supplied in bulk packaging. Molex and Würth Elektronik parts are supplied in bulk. Amphenol ICC/FCI BERGSTIK® parts are available in both bag and bulk packaging options. Packaging selection does not affect electrical or mechanical performance.

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