How do the Harwin Inc. M504 Series variants differ?

Harwin Inc. M504 Series part numbers differ by connector type, contact material, current rating and gender. Use the selection guide above to pick by connector type.

How many Harwin Inc. M504 Series part numbers are listed?

5 Harwin Inc. M504 Series part numbers are listed, each with specifications and a datasheet where available.

Harwin Inc. M504 Series

5 variants · Harwin Inc.

About the Harwin Inc. M504 Series

The Harwin Inc. M504 Series series groups 5 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. Every variant in the range shares a common contact finish - mating of Gold, contact finish - post of Gold and contact shape of Square. Variants differ by connector type, contact material and current rating, so you can match the exact connector type your application requires using the selection guide below. All listed Harwin Inc. M504 Series part numbers are active and orderable.

Select a variant by

Connector type: Header · Receptacle
Contact material: Copper Alloy · Phosphor Bronze
Current rating: 1A · 1A per Contact
Gender: Female Socket · Male Pin
Insulation height: 0.181\" (4.60mm) · 0.224\" (5.69mm)
Positions: 10 · 12 · 20 · 24 · 40

Shared specifications

Contact finish - mating: Gold
Contact finish - post: Gold
Contact shape: Square
Fastening type: Push-Pull
Insulation color: Black
Insulation material: Liquid Crystal Polymer (LCP)
Material flammability rating: UL94 V-0
Mounting type: Surface Mount
Operating temperature: -40°C ~ 105°C
Package: Tube
Pitch: 0.050\" (1.27mm)
Row spacing - mating: 0.050\" (1.27mm)

Variant comparison

Parameter	M50-4300545	M50-4300645	M50-4301045	M50-4302045	M50-4901245
Connector type	Receptacle	Receptacle	Receptacle	Receptacle	Header
Contact material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Copper Alloy
Current rating	1A	1A	1A	1A	1A per Contact
Gender	Female Socket	Female Socket	Female Socket	Female Socket	Male Pin
Insulation height	0.181\" (4.60mm)	0.181\" (4.60mm)	0.181\" (4.60mm)	0.181\" (4.60mm)	0.224\" (5.69mm)
Positions	10	12	20	40	24

Request a quote on any Harwin Inc. M504 Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

Frequently asked questions

How do the Harwin Inc. M504 Series variants differ?: Harwin Inc. M504 Series part numbers differ by connector type, contact material, current rating and gender. Use the selection guide above to pick by connector type.
How many Harwin Inc. M504 Series part numbers are listed?: 5 Harwin Inc. M504 Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for Harwin Inc. M504 Series?: Request a quote (RFQ) for any Harwin Inc. M504 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.