M52-5051845 Equivalent & Substitute Parts

Part Overview

The M52-5051845 is an 18-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 currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement planning.

Substiute Parts

M52-5051845

Harwin Inc.In Stock: 890M52-5051845 Datasheet

Current PartRFQ

M52-5050945

Harwin Inc.In Stock: 796M52-5050945 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the M52-5051845 is constrained by the following critical parameters that must remain consistent:

Mandatory Matching Parameters:

• Pitch - Mating: 0.050" (1.27mm)
• Mounting Type: Surface Mount
• Connector Type: Receptacle
• Contact Type: Female Socket
• Style: Board to Board
• Fastening Type: Push-Pull
• Contact Finish - Mating: Gold
• Insulation Material: Polyamide (PA6T), Nylon 6T
• Contact Material: Phosphor Bronze
• Operating Temperature Range: -40°C ~ 105°C
• Current Rating: 1A
• Material Flammability Rating: UL94 V-0

The M52-5050945 shares all mandatory parameters with the M52-5051845. The primary difference is the number of positions: the substitute part provides 9 positions versus the original 18 positions. This substitution is applicable only in applications where the reduced contact count meets functional requirements.

Parameter Comparison

Engineering Selection Recommendations

The M52-5050945 is suitable as a substitute for the M52-5051845 in applications where the connector contact count requirement is 9 positions or fewer. Both parts maintain identical electrical and mechanical specifications across all critical parameters including pitch, mounting type, contact material, operating temperature range, and current rating. The M52-5050945 holds active product status with current manufacturing support, whereas the M52-5051845 is obsolete. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

Frequently Asked Questions (FAQ)

Q: Can the M52-5050945 directly replace the M52-5051845 in existing designs?

A: Direct replacement is possible only if the application requires 9 or fewer signal connections. The M52-5050945 provides half the contact positions of the original part. PCB layout and connector footprint modifications are necessary.

Q: Are the mating pitch and surface mount characteristics identical?

A: Yes. Both parts maintain 0.050" (1.27mm) pitch and surface mount solder termination. Mechanical compatibility with mating connectors and PCB assembly processes remains consistent.

Q: What is the significance of the product status difference?

A: The M52-5051845 is obsolete and no longer manufactured. The M52-5050945 is active and available from current inventory. For new designs or long-term procurement, the active part is the appropriate selection.

Q: Are thermal and electrical ratings equivalent?

A: Yes. Both connectors operate across -40°C to 105°C and carry 1A per contact. Material flammability rating (UL94 V-0) and insulation material composition are identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected. Moisture sensitivity level is 1 (unlimited) for both parts.