M52-5054145 Equivalent & Substitute Parts

Part Overview

The M52-5054145 is a 41-position receptacle connector manufactured by Harwin Inc., designed for board-to-board applications with 0.050" (1.27mm) pitch surface mount technology. This connector features gold-plated female socket contacts, push-pull fastening, and operates across -40°C to 105°C. The part is classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	M52-5054145
Manufacturer	Harwin Inc.
Category	Rectangular Connectors
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	41
Pitch - Mating	0.050" (1.27mm)
Mounting Type	Surface Mount
Termination	Solder
Contact Finish - Mating	Gold
Operating Temperature	-40°C ~ 105°C
Current Rating	1A
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the M52-5054145 is constrained by the following critical parameters that must remain consistent:

Pitch - Mating: 0.050" (1.27mm) — determines PCB layout compatibility
Mounting Type: Surface Mount — defines assembly process and footprint
Connector Type: Receptacle with Female Socket contacts — specifies mating interface
Contact Finish: Gold — ensures electrical performance and reliability
Termination: Solder — establishes connection method to PCB
Operating Temperature Range: -40°C ~ 105°C — defines thermal operating envelope
Current Rating: 1A — establishes electrical capacity per contact
Material Flammability Rating: UL94 V-0 — maintains safety compliance

The substitute part M52-5052045 shares all critical parameters with the main part. The primary difference is the number of positions (20 versus 41), which represents a reduced-capacity variant within the same connector family. This substitution is valid only when circuit designs require fewer contact positions while maintaining identical electrical, mechanical, and environmental specifications.

Parameter Comparison

Parameter	M52-5054145 (Main)	M52-5052045 (Substitute)
Manufacturer	Harwin Inc.	Harwin Inc.
Category	Rectangular Connectors	Rectangular Connectors
Connector Type	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket
Number of Positions	41	20
Pitch - Mating	0.050" (1.27mm)	0.050" (1.27mm)
Mounting Type	Surface Mount	Surface Mount
Termination	Solder	Solder
Contact Finish - Mating	Gold	Gold
Insulation Color	Black	Black
Insulation Height	0.224" (5.69mm)	0.224" (5.69mm)
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Current Rating (Amps)	1A	1A
Insulation Material	Polyamide (PA6T), Nylon 6T	Polyamide (PA6T), Nylon 6T
Contact Shape	Square	Square
Contact Material	Phosphor Bronze	Phosphor Bronze
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Obsolete	Active

Engineering Selection Recommendations

The M52-5052045 is the manufacturer-recommended substitute for the obsolete M52-5054145. Both connectors maintain identical electrical specifications, thermal operating range, and compliance certifications (ROHS3, REACH Unaffected). The M52-5052045 carries active product status, ensuring continued availability and manufacturing support.

Selection of the M52-5052045 is appropriate when circuit designs accommodate a 20-position connector configuration. The substitute maintains all critical performance parameters: 0.050" pitch, surface mount assembly, gold-plated contacts, 1A current rating per contact, and -40°C to 105°C operating temperature range. Both connectors employ identical insulation materials, contact geometry, and flammability ratings.

Frequently Asked Questions (FAQ)

Q: Can the M52-5052045 be used as a direct replacement for the M52-5054145?

A: The M52-5052045 is a valid substitute only when the circuit design requires 20 or fewer contact positions. All other electrical, mechanical, and environmental parameters are identical. Direct pin-for-pin substitution is not possible due to the position count difference.

Q: What is the primary difference between these two connectors?

A: The M52-5054145 provides 41 contact positions, while the M52-5052045 provides 20 contact positions. Both connectors share the same 0.050" pitch, gold contact finish, surface mount technology, and operating specifications.

Q: Are there any compliance or certification differences?

A: No. Both connectors are ROHS3 compliant, REACH unaffected, and rated UL94 V-0 for material flammability. Both maintain MSL 1 (unlimited) moisture sensitivity levels.

Q: What is the significance of the M52-5054145 being obsolete?

A: Obsolete status indicates the part is no longer manufactured. The M52-5052045, with active product status, represents the current manufacturing alternative within the Archer Kontrol connector family.

Q: Are the mated stacking heights identical?

A: Yes. Both connectors specify mated stacking heights of 8.5mm and 9.77mm, ensuring compatible board-to-board spacing.

Q: Can these connectors be used in medical and telecommunications applications?

A: Yes. Both connectors are specified for general purpose, medical, and telecommunications applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message