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Harwin Inc. M503 Series

62 variants · Harwin Inc.

About the Harwin Inc. M503 Series

The Harwin Inc. M503 Series series groups 62 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. The listed variants share a common applications of General Purpose, Medical, Telecommunications, contact finish - mating of Gold and contact material of Phosphor Bronze. Variants differ by connector type, insulation height and insulation material, so you can match the exact connector type your application requires using the selection guide below.

Select a variant by

Connector type
Receptacle · Receptacle, Bottom or Top Entry
Insulation height
0.079\" (2.00mm) · 0.142\" (3.60mm) · 0.173\" (4.40mm) · 0.181\" (4.60mm)
Insulation material
Liquid Crystal Polymer (LCP) · Polyamide (PA6T), Nylon 6T
Mated stacking heights
3.1mm, 3.6mm, 3.8mm · 5.4mm, 6.08mm, 9.37mm · 5.5mm, 6.18mm
Mounting type
Surface Mount · Through Hole
Package
Tape & Reel (TR); Cut Tape (CT) · Tube
Positions
2 · 3 · 4 · 6 · 8 · 14 · 16 · 20 · 24 · 50 · 100
Rows
1 · 2

Shared specifications

Applications
General Purpose, Medical, Telecommunications
Contact finish - mating
Gold
Contact material
Phosphor Bronze
Contact shape
Square
Current rating
1A
Fastening type
Push-Pull
Gender
Female Socket
Insulation color
Black
Material flammability rating
UL94 V-0
Operating temperature
-40°C ~ 105°C
Pitch
0.050\" (1.27mm)
Termination
Solder

Variant comparison

ParameterM50-3000745M50-3001245M50-3005045M50-3030442M50-3030842M50-3032042
Connector typeReceptacleReceptacleReceptacleReceptacleReceptacleReceptacle
Insulation height0.173\" (4.40mm)0.173\" (4.40mm)0.173\" (4.40mm)0.173\" (4.40mm)0.173\" (4.40mm)0.173\" (4.40mm)
Insulation materialPolyamide (PA6T), Nylon 6TPolyamide (PA6T), Nylon 6TPolyamide (PA6T), Nylon 6TPolyamide (PA6T), Nylon 6TPolyamide (PA6T), Nylon 6TPolyamide (PA6T), Nylon 6T
Mated stacking heights5.4mm, 6.08mm, 9.37mm5.4mm, 6.08mm, 9.37mm5.4mm, 6.08mm, 9.37mm5.4mm, 6.08mm, 9.37mm5.4mm, 6.08mm, 9.37mm5.4mm, 6.08mm, 9.37mm
Mounting typeThrough HoleThrough HoleThrough HoleThrough HoleThrough HoleThrough Hole
PackageTubeTubeTubeTubeTubeTube
Positions14241004820
Rows222111

Request a quote on any Harwin Inc. M503 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. M503 Series variants differ?
Harwin Inc. M503 Series part numbers differ by connector type, insulation height, insulation material and mated stacking heights. Use the selection guide above to pick by connector type.
How many Harwin Inc. M503 Series part numbers are listed?
62 Harwin Inc. M503 Series part numbers are listed, each with specifications and a datasheet where available.
How do I get pricing and lead time for Harwin Inc. M503 Series?
Request a quote (RFQ) for any Harwin Inc. M503 Series part number and we confirm price, availability and lead time per line — including end-of-life and hard-to-find variants.

All variants