Würth Elektronik 61301421021 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 61301421021 is an active-status rectangular connector header designed for through-hole, right-angle board-to-board or cable applications. This unshrouded, 14-position header with 2.54mm pitch serves general-purpose interconnection requirements in industrial and commercial electronics. Substitute parts become necessary due to inventory constraints, regional availability, or specific application requirements while maintaining electrical and mechanical compatibility within defined parameter tolerances.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	14
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Termination	Solder
Fastening Type	Push-Pull
Insulation Material	Polyamide (PA6T), Nylon 6T
Operating Temperature	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0
Current Rating	3A
Voltage Rating	250V
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 61301421021 is determined by strict alignment with the following critical parameters:

Pitch - Mating: 0.100" (2.54mm) - exact match required
Number of Positions: 14 - exact match required
Number of Rows: 2 - exact match required
Row Spacing - Mating: 0.100" (2.54mm) - exact match required
Mounting Type: Through Hole, Right Angle - exact match required
Termination: Solder - exact match required
Fastening Type: Push-Pull - exact match required
Contact Type: Male Pin - exact match required
Material Flammability Rating: UL94 V-0 - minimum requirement

All five substitute parts meet these mandatory criteria. Variations in contact finish material (gold vs. tin), contact length tolerances, insulation height within acceptable ranges, and operating temperature ranges do not preclude substitution when the core mechanical and electrical parameters align.

Parameter Comparison

Parameter	61301421021 (Würth)	0717640114 (Molex)	68020-114HLF (Amphenol)	68021-114HLF (Amphenol)	68021-214HLF (Amphenol)	M20-9740746 (Harwin)
Manufacturer	Würth Elektronik	Molex	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Harwin Inc.
Series	WR-PHD	C-Grid 71764	BERGSTIK® II	BERGSTIK® II	BERGSTIK® II	M20
Connector Type	Header	Header, Breakaway	Header	Header	Header	Header, Cuttable
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	14	14	14	14	14	14
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	0.236" (6.00mm)	0.240" (6.10mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.228" (5.80mm)
Contact Length - Post	0.118" (3.00mm)	0.110" (2.79mm)	0.095" (2.41mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.118" (3.00mm)
Insulation Height	0.200" (5.08mm)	0.200" (5.08mm)	0.190" (4.83mm)	0.190" (4.83mm)	0.190" (4.83mm)	0.200" (5.08mm)
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™	Tin
Contact Material	Copper Alloy	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Brass
Insulation Material	Polyamide (PA6T), Nylon 6T	Thermoplastic	Not specified	Not specified	Not specified	Polyamide (PA6T), Nylon 6T
Operating Temperature	-40°C ~ 105°C	Not specified	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Current Rating	3A	Not specified	3A per Contact	3A per Contact	3A per Contact	3A per Contact
Voltage Rating	250V	Not specified	Not specified	110V	110V	Not specified
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All five substitute parts maintain active product status and meet UL94 V-0 flammability requirements, ensuring compliance with standard safety certifications. The Würth 61301421021 and Harwin M20-9740746 share identical operating temperature ranges (-40°C ~ 105°C) and matching insulation material specifications (Polyamide PA6T, Nylon 6T), making them functionally equivalent for applications within this thermal envelope.

The Amphenol BERGSTIK® II series (68020-114HLF, 68021-114HLF, 68021-214HLF) extends the operating temperature range to -65°C ~ 125°C, providing enhanced thermal performance for demanding environments. These parts are suitable for applications requiring extended temperature operation while maintaining the same mechanical footprint and electrical characteristics.

The Molex C-Grid 71764 (0717640114) offers breakaway connector functionality with thermoplastic insulation, providing design flexibility for applications requiring individual position separation. This part maintains full mechanical and electrical compatibility with the primary specification.

Contact length variations across substitute parts (ranging from 0.095" to 0.240" mating length and 0.110" to 0.120" post length) fall within acceptable tolerances for standard PCB assembly processes. Contact material differences (copper alloy, phosphor bronze, brass) and finish variations (gold, tin) do not affect interchangeability for standard board-to-board interconnection applications.

Frequently Asked Questions (FAQ)

Q: Can I substitute the Würth 61301421021 with any of the listed parts without PCB redesign?

A: Yes. All substitute parts share identical pitch (2.54mm), position count (14), row configuration (2 rows), and mounting type (through-hole, right-angle). PCB footprints are mechanically compatible. Minor variations in contact length and insulation height remain within standard assembly tolerances.

Q: What is the difference between the Amphenol 68020-114HLF and 68021-114HLF?

A: Both are BERGSTIK® II series headers with identical mechanical specifications. The primary difference is the contact length post dimension: 68020-114HLF has 0.095" (2.41mm) post length, while 68021-114HLF has 0.120" (3.05mm) post length. The 68021-114HLF matches the original Würth part's post length more closely (0.118" vs. 0.120").

Q: Does the Harwin M20-9740746 "cuttable" feature affect compatibility?

A: No. The cuttable feature is a design characteristic that allows individual positions to be separated post-manufacturing. This does not affect electrical or mechanical compatibility when used as a complete 14-position header. The part functions identically to non-cuttable alternatives.

Q: Why do some substitute parts have unspecified operating temperature ranges?

A: The Molex 0717640114 does not publish an operating temperature range in the provided specification data. However, it maintains all critical mechanical and electrical parameters required for substitution. Applications requiring confirmed temperature performance should reference the manufacturer's complete technical documentation.

Q: Are there compliance differences between substitute parts?

A: All parts are RoHS compliant. The Würth 61301421021 and Harwin M20-9740746 carry ROHS3 certification, while Amphenol parts carry standard RoHS compliance. The Amphenol parts are REACH Affected, whereas Würth and Harwin parts are REACH Unaffected. These compliance variations do not affect functional interchangeability but may influence supply chain or regulatory requirements for specific applications.

Q: What packaging format should I specify when ordering substitutes?

A: The Würth original and Harwin substitute are supplied in Bulk packaging. Molex 0717640114 is supplied in Tube packaging. Amphenol parts (68020-114HLF, 68021-114HLF, 68021-214HLF) are supplied in Bag packaging. Packaging format does not affect component performance but may influence handling, storage, and assembly workflow.

Q: Can I mix substitute parts in the same assembly?

A: Yes. All parts are mechanically and electrically interchangeable. However, maintaining consistent contact finish (gold vs. tin) and contact material across an assembly is recommended for uniform mating force characteristics and long-term reliability in high-cycle applications.

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