MQ115-2P-1A(21) Equivalent & Substitute Parts

Part Overview

The MQ115-2P-1A(21) is a 2-position rectangular connector manufactured by Hirose Electric Co Ltd, designed for through-hole mounting applications. This component is classified as obsolete, which necessitates identification of active equivalent parts to maintain design continuity and ensure procurement availability. The MQ115 series provides standardized rectangular connector solutions for board-to-cable/wire interconnections requiring push-pull fastening mechanisms.

Substiute Parts

MQ115-2P-1A(21)

Hirose Electric Co LtdIn Stock: 907MQ115-2P-1A(21) Datasheet

Current PartRFQ

MQ115-2P-1A(71)

Hirose Electric Co LtdIn Stock: 1103MQ115-2P-1A(71) Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MQ115-2P-1A(21) is determined by the following critical parameters:

• Series Compatibility: Both parts belong to the MQ115 series, ensuring mechanical and electrical compatibility within the connector family
• Position Count: Both maintain 2-position configuration, preserving circuit topology and pin count requirements
• Connector Type & Contact Configuration: Receptacle with male pin contacts in both variants
• Mounting Method: Through-hole mounting preserved across both parts
• Fastening Mechanism: Push-pull fastening type maintained for consistent mating/unmating operations
• Electrical Ratings: Current rating (2A) and voltage rating (250VAC) specifications align with application requirements
• Compliance Standards: ROHS3 compliance and MSL Level 1 maintained across both parts
• Insulation Material: Polybutylene Terephthalate (PBT) with UL94 V-0 flammability rating ensures consistent thermal and mechanical performance

The MQ115-2P-1A(71) qualifies as a direct substitute based on identical functional parameters and active product status.

Parameter Comparison

Engineering Selection Recommendations

The MQ115-2P-1A(71) is the appropriate substitute for the obsolete MQ115-2P-1A(21). Selection is based on:

• Product Status Alignment: The substitute part maintains active production status, ensuring long-term procurement availability and supply chain continuity
• Regulatory Compliance: Both parts maintain ROHS3 compliance and identical MSL ratings, satisfying environmental and reliability requirements
• Functional Equivalence: Identical electrical ratings (2A at 250VAC), mechanical configuration (2-position, through-hole, push-pull), and material specifications (PBT insulation, UL94 V-0) ensure direct interchangeability
• Series Continuity: Remaining within the MQ115 family preserves design intent and connector ecosystem compatibility

Frequently Asked Questions (FAQ)

Q: Can MQ115-2P-1A(71) be used as a direct replacement for MQ115-2P-1A(21)?

A: Yes. Both parts share identical electrical ratings (2A, 250VAC), mechanical configuration (2-position receptacle with male pins), mounting method (through-hole), and fastening type (push-pull). The substitute is an active product, addressing the obsolescence of the original part.

Q: What is the difference between the two part numbers?

A: The suffix designation (21 vs. 71) indicates different manufacturing batches or revisions within the MQ115 series. The functional and electrical specifications remain identical. The MQ115-2P-1A(71) is the current active variant.

Q: Are there any compatibility concerns when switching from MQ115-2P-1A(21) to MQ115-2P-1A(71)?

A: No compatibility concerns exist. Both parts maintain identical contact length specifications (0.138" / 4.60mm post length), insulation height (0.571" / 14.50mm), shrouding configuration (4-wall shrouded), and contact material (copper alloy). PCB footprints and mating interfaces are identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant and carry MSL Level 1 (unlimited moisture sensitivity). Material flammability rating is UL94 V-0 for both variants, ensuring equivalent thermal and environmental performance.

Q: Is there a stock availability difference between these parts?

A: The MQ115-2P-1A(71) has higher current inventory (1055 pcs) compared to the MQ115-2P-1A(21) (868 pcs). Given the obsolete status of the original part, the active substitute ensures sustained procurement capability.