Harwin M50-3205045 Equivalent & Substitute Parts

Part Overview

The Harwin M50-3205045 is a 100-position receptacle connector with 0.050" (1.27mm) pitch, designed for through-hole, right-angle board-to-board or cable applications. This connector features gold-plated contacts, operates across -40°C to 105°C, and is rated for 1A current. The product is classified as obsolete, necessitating identification of active equivalent components that maintain electrical and mechanical compatibility for ongoing system support and new designs.

Key Parameters

Parameter	Value
Number of Positions	100
Pitch - Mating	0.050" (1.27mm)
Number of Rows	2
Row Spacing - Mating	0.050" (1.27mm)
Mounting Type	Through Hole, Right Angle
Contact Type	Female Socket
Termination	Solder
Contact Finish - Mating	Gold
Current Rating	1A
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the Harwin M50-3205045 is determined by strict equivalence across the following critical parameters:

Position Count & Pitch: 100 positions at 0.050" (1.27mm) mating pitch with 2-row configuration and 0.050" row spacing
Mounting & Orientation: Through-hole, right-angle mounting for PCB integration
Contact Configuration: Female socket contacts with gold mating finish
Electrical Rating: 1A current capacity
Compliance: UL94 V-0 flammability rating and ROHS3 compliance

The Preci-Dip 853-83-100-20-001101 meets these core substitution criteria. While secondary parameters such as contact material, insulation material, and operating temperature range differ, these variations do not preclude functional equivalence for applications within the specified operating envelope of the original component.

Parameter Comparison

Parameter	Harwin M50-3205045	Preci-Dip 853-83-100-20-001101
Manufacturer	Harwin Inc.	Preci-Dip
Product Status	Obsolete	Active
Number of Positions	100	100
Pitch - Mating	0.050" (1.27mm)	0.050" (1.27mm)
Number of Rows	2	2
Row Spacing - Mating	0.050" (1.27mm)	0.050" (1.27mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle
Connector Type	Receptacle	Socket
Contact Type	Female Socket	Female Socket
Termination	Solder	Solder
Contact Finish - Mating	Gold	Gold
Contact Finish Thickness - Mating	10.0µin (0.25µm)	29.5µin (0.75µm)
Insulation Color	Black	Black
Insulation Height	0.136" (3.46mm)	0.128" (3.25mm)
Operating Temperature	-40°C ~ 105°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Current Rating	1A	1A
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Fastening Type	Push-Pull	Push-Pull

Engineering Selection Recommendations

The Preci-Dip 853-83-100-20-001101 is the designated substitute for the obsolete Harwin M50-3205045. Selection is based on the following engineering criteria:

Product Status: The Preci-Dip component is active and in production, ensuring long-term availability and supply chain continuity for new designs and legacy system support.

Compliance & Certification: Both components maintain UL94 V-0 flammability rating and ROHS3 compliance, satisfying regulatory and environmental requirements.

Electrical & Mechanical Equivalence: The substitute maintains identical position count, pitch, row configuration, mounting orientation, contact type, and current rating. These parameters ensure direct functional compatibility with existing mating connectors and PCB layouts.

Enhanced Operating Range: The Preci-Dip component extends the operating temperature range to -55°C ~ 125°C, providing broader environmental tolerance compared to the original -40°C ~ 105°C specification.

Contact Finish Durability: The substitute features increased gold plating thickness (29.5µin versus 10.0µin), enhancing contact longevity and wear resistance in high-cycle mating applications.

Frequently Asked Questions (FAQ)

Q: Can the Preci-Dip 853-83-100-20-001101 directly replace the Harwin M50-3205045 in existing designs?

A: Yes. Both connectors share identical position count, pitch, row spacing, mounting type, and contact configuration. PCB footprints and mating connector compatibility are preserved.

Q: What are the key differences between these components?

A: The primary differences are manufacturer, contact material composition, insulation material, and operating temperature range. The Preci-Dip component operates across -55°C ~ 125°C versus -40°C ~ 105°C for the Harwin component, and features thicker gold plating on mating contacts (29.5µin versus 10.0µin).

Q: Are there any mechanical fit considerations?

A: Insulation height differs slightly: Harwin at 0.136" (3.46mm) and Preci-Dip at 0.128" (3.25mm). This 0.008" (0.21mm) difference is within typical PCB assembly tolerances and does not affect functional compatibility.

Q: Do both components meet the same compliance standards?

A: Yes. Both are UL94 V-0 rated and ROHS3 compliant, satisfying equivalent regulatory and environmental requirements.

Q: What is the contact material difference, and does it affect performance?

A: The Harwin component uses phosphor bronze contacts, while the Preci-Dip uses beryllium copper. Both materials provide equivalent electrical conductivity and mechanical durability for 1A applications.

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