FSMRA7J Equivalent & Substitute Parts

Part Overview

The FSMRA7J is a tactile switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a SPST-NO (Single Pole Single Throw - Normally Open) device with side actuation and through-hole, right-angle mounting. The switch is rated for 0.05A at 24VDC and features an off-momentary switch function with 160gf operating force and 0.30mm switch travel. The FSMRA7J is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements. Substitute parts must maintain identical electrical ratings, mechanical mounting configurations, and functional characteristics to ensure direct replacement capability.

Substiute Parts

FSMRA7J

TE Connectivity ALCOSWITCH SwitchesIn Stock: 791FSMRA7J Datasheet

Current PartRFQ

2-1825027-0

TE Connectivity ALCOSWITCH SwitchesIn Stock: 62152-1825027-0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FSMRA7J is determined by strict equivalence across the following critical parameters:

Electrical Equivalence: Circuit configuration (SPST-NO), contact rating (0.05A @ 24VDC), and switch function (Off-Mom) must be identical.

Mechanical Equivalence: Mounting type (Through Hole, Right Angle), actuator orientation (Side Actuated), termination style (PC Pin), outline dimensions (7.11mm x 6.60mm), and actuator length (11.85mm) must match exactly.

Functional Equivalence: Operating force (160gf), mechanical life (100,000 cycles), and non-illuminated configuration must be maintained.

The substitute part 2-1825027-0 satisfies all electrical and mechanical equivalence criteria. Variations in operating temperature range, switch travel distance, actuator material composition, and product status (active versus obsolete) do not preclude substitution when all primary parameters align.

Parameter Comparison

Engineering Selection Recommendations

The part 2-1825027-0 is the direct equivalent substitute for the obsolete FSMRA7J. Both components are manufactured by TE Connectivity ALCOSWITCH Switches within the FSMRAJ series and maintain identical electrical ratings, circuit configuration, and mechanical mounting specifications.

Product Status Consideration: The FSMRA7J is classified as obsolete, while 2-1825027-0 maintains active product status with significantly higher inventory availability (6200 units in stock versus 701 units). For new designs and production continuity, 2-1825027-0 is the appropriate selection.

Compliance Status: Both parts carry REACH Unaffected and EAR99 ECCN classifications. The substitute part 2-1825027-0 is RoHS3 Compliant with MSL 1 (Unlimited), providing enhanced environmental and regulatory compliance documentation.

Operational Characteristics: The substitute part features an extended operating temperature range (-20°C to 105°C versus -20°C to 70°C) and reduced switch travel (0.25mm versus 0.30mm). These variations do not affect substitution eligibility when the primary electrical and mechanical parameters remain equivalent.

Frequently Asked Questions (FAQ)

Q: Can 2-1825027-0 be used as a direct replacement for FSMRA7J in existing designs?

A: Yes. Both parts are SPST-NO tactile switches with identical contact ratings (0.05A @ 24VDC), mounting configurations (Through Hole, Right Angle), and mechanical specifications (160gf operating force, 100,000 cycle life). The electrical and mechanical equivalence permits direct substitution.

Q: What is the difference in switch travel between these parts?

A: The FSMRA7J has 0.30mm switch travel, while 2-1825027-0 has 0.25mm switch travel. This 0.05mm reduction does not affect functional compatibility for standard momentary switch applications.

Q: Does the extended operating temperature range of 2-1825027-0 affect compatibility?

A: No. The substitute part's extended range (-20°C to 105°C versus -20°C to 70°C) provides broader environmental capability without compromising performance within the original part's temperature specification.

Q: Are there packaging differences between these parts?

A: The FSMRA7J is supplied in standard packaging, while 2-1825027-0 is supplied in bulk packaging. Both maintain identical component specifications and through-hole PC pin termination.

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

A: The FSMRA7J is obsolete and has limited inventory (701 units). The 2-1825027-0 is an active product with substantial inventory (6200 units), ensuring long-term availability for production and design requirements.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both parts are REACH Unaffected and classified as EAR99. The substitute part 2-1825027-0 additionally carries RoHS3 Compliance certification.