Harwin M50-3203045 Equivalent & Substitute Parts

Part Overview

The Harwin M50-3203045 is a 60-position receptacle connector with 0.050" (1.27mm) pitch, designed for through-hole, right-angle mounting with gold-plated contacts. This connector is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring compatible alternatives.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	60
Pitch - Mating	0.050" (1.27mm)
Number of Rows	2
Row Spacing - Mating	0.050" (1.27mm)
Mounting Type	Through Hole, Right Angle
Termination	Solder
Contact Finish - Mating	Gold
Current Rating	1A
Operating Temperature	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the M50-3203045 is determined by the following critical parameters: connector type (receptacle), contact type (female socket), mating pitch (0.050"), number of rows (2), row spacing (0.050"), mounting configuration (through hole, right angle), termination method (solder), contact finish (gold), current rating (1A), and compliance certifications (ROHS3, UL94 V-0).

Two substitute parts are identified:

M50-3201545 (Harwin Inc.): Direct manufacturer alternative with identical pitch, row configuration, mounting type, and termination. Primary difference is reduced position count (30 vs. 60), suitable for applications requiring fewer contact positions within the same connector family.

853-83-060-20-001101 (Preci-Dip): Cross-manufacturer substitute maintaining 60-position count, 0.050" pitch, 2-row configuration, through-hole right-angle mounting, and solder termination. Differences include contact material (beryllium copper vs. phosphor bronze), contact finish thickness variation, and extended operating temperature range (-55°C ~ 125°C).

Parameter Comparison

Parameter	M50-3203045 (Main)	M50-3201545 (Harwin)	853-83-060-20-001101 (Preci-Dip)
Manufacturer	Harwin Inc.	Harwin Inc.	Preci-Dip
Connector Type	Receptacle	Receptacle	Socket
Contact Type	Female Socket	Female Socket	Female Socket
Number of Positions	60	30	60
Pitch - Mating	0.050" (1.27mm)	0.050" (1.27mm)	0.050" (1.27mm)
Number of Rows	2	2	2
Row Spacing - Mating	0.050" (1.27mm)	0.050" (1.27mm)	0.050" (1.27mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Termination	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold
Contact Finish Thickness - Mating	10.0µin (0.25µm)	10.0µin (0.25µm)	29.5µin (0.75µm)
Insulation Color	Black	Black	Black
Insulation Height	0.136" (3.46mm)	0.136" (3.46mm)	0.128" (3.25mm)
Contact Length - Post	0.094" (2.40mm)	0.094" (2.40mm)	0.130" (3.30mm)
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Contact Material	Phosphor Bronze	Phosphor Bronze	Beryllium Copper
Insulation Material	Polyamide (PA9T), Nylon 9T	Polyamide (PA9T), Nylon 9T	Polycyclohexylenedimethylene Terephthalate (PCT), Polyester, Glass Filled
Current Rating	1A	1A	1A
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

M50-3201545 Selection: This Harwin part is recommended for applications where position count reduction is acceptable. As an active product from the same manufacturer and series, it maintains identical electrical and mechanical specifications for mating pitch, row configuration, and mounting geometry. Both parts share the same insulation material, contact material, and operating temperature range. Selection is appropriate for designs requiring 30 positions or fewer within the Archer M50 connector family.

853-83-060-20-001101 Selection: This Preci-Dip substitute maintains the full 60-position count and is suitable for direct replacement in applications requiring identical contact density. The extended operating temperature range (-55°C ~ 125°C) provides thermal margin beyond the original specification. Differences in contact material (beryllium copper), contact finish thickness (29.5µin vs. 10.0µin), insulation material (PCT polyester vs. PA9T nylon), and contact post length (0.130" vs. 0.094") must be evaluated against specific application requirements. Both parts maintain ROHS3 compliance and UL94 V-0 flammability rating.

Frequently Asked Questions (FAQ)

Q: Can M50-3201545 be used as a direct replacement for M50-3203045?

A: M50-3201545 is mechanically and electrically compatible for mating pitch, row spacing, mounting type, and termination. However, it provides 30 positions instead of 60. Use this substitute only if your application requires 30 or fewer contact positions.

Q: What are the key differences between 853-83-060-20-001101 and M50-3203045?

A: Both maintain 60 positions and 0.050" pitch. Differences include contact material (beryllium copper vs. phosphor bronze), contact finish thickness (29.5µin vs. 10.0µin), insulation material (PCT polyester vs. PA9T nylon), contact post length (0.130" vs. 0.094"), and operating temperature range (-55°C ~ 125°C vs. -40°C ~ 105°C).

Q: Are all three connectors ROHS3 compliant?

A: Yes. M50-3203045, M50-3201545, and 853-83-060-20-001101 are all ROHS3 compliant with UL94 V-0 flammability rating.

Q: What is the packaging difference between substitutes?

A: M50-3201545 is supplied in tube packaging. 853-83-060-20-001101 is supplied in bulk packaging. Packaging does not affect electrical or mechanical compatibility.

Q: Can 853-83-060-20-001101 be used in applications with temperature extremes?

A: Yes. The extended operating temperature range of 853-83-060-20-001101 (-55°C ~ 125°C) exceeds the original M50-3203045 specification (-40°C ~ 105°C), providing additional thermal margin for extreme environment applications.

Q: Are the contact post lengths interchangeable?

A: Contact post length differs between parts (M50-3203045: 0.094", 853-83-060-20-001101: 0.130"). Verify PCB pad depth and mating connector specifications to ensure compatibility in your specific application.

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