FSM1JELGETR Equivalent & Substitute Parts

Part Overview

The FSM1JELGETR is a tactile switch manufactured by TE Connectivity ALCOSWITCH Switches, classified as a SPST-NO (Single Pole Single Throw - Normally Open) momentary contact switch. This surface mount component operates at 0.05A @ 12VDC with a 2.00mm actuator height and is designed for applications requiring reliable tactile feedback with extended mechanical life. The part is Active in product status and RoHS Compliant with MSL 1 rating, indicating unlimited moisture sensitivity tolerance.

Substitute parts are necessary when the original FSM1JELGETR is unavailable, when alternative packaging formats are required for manufacturing processes, or when design specifications allow for components with enhanced electrical ratings or environmental protection capabilities.

Substiute Parts

FSM1JELGETR

TE Connectivity ALCOSWITCH SwitchesIn Stock: 2828FSM1JELGETR Datasheet

Current PartRFQ

7914G-1-000

Bourns Inc.In Stock: 9157914G-1-000 Datasheet

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7914G-1-000E

Bourns Inc.In Stock: 14407914G-1-000E Datasheet

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7914G-1-024E

Bourns Inc.In Stock: 14357914G-1-024E Datasheet

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7914G-1-032E

Bourns Inc.In Stock: 17807914G-1-032E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the FSM1JELGETR with Bourns 7914G series tactile switches is based on the following alignment of critical parameters:

Common Functional Parameters:

• Circuit configuration: SPST-NO maintained across all substitutes
• Switch function: Off-Mom (momentary contact) operation identical
• Mounting type: Surface Mount with Gull Wing termination
• Actuator orientation: Top Actuated configuration
• Illumination: Non-Illuminated across all variants

Electrical Compatibility Considerations: The substitute parts operate at higher electrical ratings (0.1A @ 16VAC/DC) compared to the main part (0.05A @ 12VDC). This represents an uprating in contact capacity, permitting use in applications with equal or lower current and voltage demands.

Mechanical Variations: The 7914G series substitutes differ in actuator height (2.62mm to 4.19mm) and outline dimensions (5.00mm x 5.00mm), which may affect PCB layout and user interface feel. Operating force is elevated to 300gf compared to 160gf in the main part.

Environmental and Compliance Differences: All substitute parts include IP67 ingress protection (Dust Tight, Waterproof), extended operating temperature range (-55°C ~ 125°C), and ROHS3 compliance. Mechanical life is reduced to 100,000 cycles versus 1,000,000 cycles in the main part.

Packaging Variants: The 7914G series is available in three packaging formats: Tube (7914G-1-000), Cut Tape & Digi-Reel (7914G-1-000E, 7914G-1-032E), and Tape & Reel (7914G-1-024E).

Parameter Comparison

Engineering Selection Recommendations

For Direct Functional Replacement: The 7914G-1-024E is the most suitable substitute when PCB layout constraints permit a 2.62mm actuator height. This variant maintains Tape & Reel packaging identical to the main part, ensuring compatibility with standard pick-and-place assembly equipment. The 5.00mm x 5.00mm footprint is smaller than the original 6.20mm x 6.20mm, requiring PCB layout modification.

For Maximum Environmental Protection: All 7914G series substitutes provide IP67 ingress protection and extended operating temperature range (-55°C ~ 125°C), suitable for applications requiring enhanced environmental sealing and thermal performance beyond the original specification (-35°C ~ 85°C).

For Packaging Flexibility: The 7914G-1-000E and 7914G-1-032E offer Cut Tape & Digi-Reel packaging for applications requiring flexible tape formats. The 7914G-1-000 in Tube packaging is available for manual assembly or alternative handling processes.

Compliance Considerations: All substitute parts maintain MSL 1 (Unlimited) moisture sensitivity rating and achieve ROHS3 compliance, meeting current regulatory requirements. The main part FSM1JELGETR is RoHS Compliant, while substitutes are ROHS3 Compliant, representing enhanced compliance status.

Electrical Derating: Applications operating at the FSM1JELGETR specification (0.05A @ 12VDC) operate well within the 7914G series rating (0.1A @ 16VAC/DC), providing electrical margin. Applications requiring the full 1,000,000 cycle mechanical life of the original part cannot be satisfied by 7914G substitutes, which are rated for 100,000 cycles.

Frequently Asked Questions (FAQ)

Q: Can the 7914G-1-024E directly replace the FSM1JELGETR on existing PCBs?

A: The 7914G-1-024E has a different footprint (5.00mm x 5.00mm versus 6.20mm x 6.20mm) and actuator height (2.62mm versus 2.00mm). PCB layout modification is required. The Gull Wing termination style and surface mount configuration are compatible, but pad spacing and actuator clearance must be verified against the new dimensions.

Q: What is the impact of the higher operating force (300gf versus 160gf) in the 7914G series?

A: The increased operating force requires greater finger pressure for actuation. Applications with tactile feedback requirements or user interface considerations must evaluate whether the 300gf force is acceptable for the intended use case. This parameter is not a functional incompatibility but a user experience difference.

Q: Are the 7914G substitutes suitable for high-cycle applications?

A: The 7914G series is rated for 100,000 mechanical cycles, compared to 1,000,000 cycles for the FSM1JELGETR. Applications requiring extended mechanical life beyond 100,000 cycles should not use these substitutes. The original part is required for high-cycle durability specifications.

Q: What is the difference between the three 7914G packaging options?

A: 7914G-1-000 is supplied in Tube packaging for manual assembly. 7914G-1-000E and 7914G-1-032E are supplied in Cut Tape & Digi-Reel format for flexible tape handling. 7914G-1-024E is supplied in Tape & Reel (TR) format, matching the original part's packaging for automated assembly. Selection depends on manufacturing process requirements.

Q: Can the 7914G series be used in applications with the original operating temperature range of -35°C ~ 85°C?

A: Yes. The 7914G series operates across -55°C ~ 125°C, which encompasses the original -35°C ~ 85°C range. The extended temperature capability of the substitute provides additional margin for thermal performance.

Q: What is the significance of IP67 ingress protection in the 7914G series?

A: IP67 rating indicates Dust Tight and Waterproof protection. The original FSM1JELGETR does not specify ingress protection. Applications requiring environmental sealing benefit from the 7914G series IP67 rating. Applications without environmental requirements are unaffected by this difference.

Q: Are all substitute parts RoHS compliant?

A: Yes. The FSM1JELGETR is RoHS Compliant, and all 7914G series substitutes are ROHS3 Compliant. ROHS3 represents current regulatory compliance status and is compatible with RoHS requirements.

Q: Which substitute part has the closest actuator height to the original FSM1JELGETR?

A: The 7914G-1-024E has an actuator height of 2.62mm, closest to the original 2.00mm. The 7914G-1-032E provides 3.43mm height, and 7914G-1-000 and 7914G-1-000E provide 4.19mm height. Actuator height affects PCB clearance and user interface feel.