M50-3500942 Equivalent & Substitute Parts

Part Overview

The M50-3500942 is a rectangular connector header manufactured by Harwin Inc. as part of the Archer M50 series. This is a through-hole vertical mount connector with 18 positions arranged in 2 rows, featuring 0.050" (1.27mm) pitch mating and row spacing. The part is currently obsolete, making identification of suitable substitute components essential for ongoing design support and component procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	M50-3500942
Manufacturer	Harwin Inc.
Series	Archer M50
Connector Type	Header
Contact Type	Male Pin
Number of Positions	18
Number of Rows	2
Pitch - Mating	0.050" (1.27mm)
Row Spacing - Mating	0.050" (1.27mm)
Mounting Type	Through Hole
Termination	Solder
Operating Temperature Range	-40°C ~ 105°C
Current Rating	1A per Contact
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the M50-3500942 is based on the following critical parameters that must remain consistent:

Series Compatibility: Both parts must belong to the Archer M50 series to ensure mechanical and electrical interchangeability
Connector Type & Contact Type: Header with male pin contacts
Pitch Specifications: Mating pitch and row spacing must both be 0.050" (1.27mm)
Mounting & Termination: Through-hole solder termination required
Electrical Characteristics: Operating temperature range -40°C ~ 105°C and 1A per contact current rating
Material & Compliance: Copper alloy contacts with gold mating finish, thermoplastic insulation, UL94 V-0 rated, ROHS3 compliant

The substitute part M50-3501042 maintains all these core parameters while differing only in the number of positions (20 positions versus 18 positions). This difference represents a superset configuration where the substitute accommodates additional contact positions within the same mechanical and electrical framework.

Parameter Comparison

Parameter	M50-3500942 (Main Part)	M50-3501042 (Substitute)
Manufacturer	Harwin Inc.	Harwin Inc.
Series	Archer M50	Archer M50
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	18	20
Number of Rows	2	2
Pitch - Mating	0.050" (1.27mm)	0.050" (1.27mm)
Row Spacing - Mating	0.050" (1.27mm)	0.050" (1.27mm)
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Contact Length - Mating	0.118" (3.00mm)	0.118" (3.00mm)
Contact Length - Post	0.091" (2.30mm)	0.091" (2.30mm)
Overall Contact Length	0.248" (6.30mm)	0.248" (6.30mm)
Insulation Height	0.039" (1.00mm)	0.039" (1.00mm)
Contact Shape	Square	Square
Contact Finish - Mating	Gold	Gold
Contact Finish - Post	Tin	Tin
Contact Material	Copper Alloy	Copper Alloy
Insulation Material	Thermoplastic	Thermoplastic
Insulation Color	Black	Black
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C
Current Rating	1A per Contact	1A per Contact
Material Flammability Rating	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Obsolete	Active

Engineering Selection Recommendations

The M50-3501042 is the designated substitute for the obsolete M50-3500942. Selection of this substitute is supported by the following factors:

Product Status: The M50-3501042 maintains active product status with 8502 units in stock, ensuring long-term availability compared to the obsolete M50-3500942
Series Continuity: Both connectors belong to the Archer M50 series, maintaining design compatibility within the product line
Compliance Alignment: The substitute maintains identical compliance certifications including ROHS3, UL94 V-0, and REACH unaffected status
Electrical & Mechanical Equivalence: All critical parameters including pitch, row spacing, contact materials, finishes, operating temperature, and current ratings are identical
Position Accommodation: The 20-position configuration of the substitute provides additional contact capacity while maintaining the same mechanical footprint and electrical characteristics

Frequently Asked Questions (FAQ)

Q: Can the M50-3501042 be used as a direct replacement for the M50-3500942?

A: The M50-3501042 is mechanically and electrically compatible with the M50-3500942. Both connectors share identical pitch (0.050"), row spacing (0.050"), contact materials, finishes, and electrical ratings. The primary difference is the position count: 20 positions versus 18 positions. PCB layout modifications are required to accommodate the additional positions.

Q: What are the key compatibility parameters between these two connectors?

A: Compatibility is determined by: Archer M50 series membership, 0.050" (1.27mm) mating pitch, 0.050" (1.27mm) row spacing, through-hole solder termination, male pin contact type, -40°C ~ 105°C operating temperature range, and 1A per contact current rating. All these parameters are identical between the two parts.

Q: Does the increased position count affect electrical performance?

A: No. Each contact maintains the same 1A current rating and electrical characteristics. The additional positions do not degrade the performance of existing connections.

Q: Are there packaging differences between these parts?

A: The M50-3500942 packaging information is not specified in the available data. The M50-3501042 is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: What compliance certifications apply to the substitute part?

A: The M50-3501042 maintains ROHS3 compliance, UL94 V-0 material flammability rating, REACH unaffected status, and MSL 1 (unlimited) moisture sensitivity level, identical to the original part.

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