MJTP1138C Equivalent & Substitute Parts

Part Overview

The MJTP1138C is an APEM Inc. tactile switch featuring SPST-NO (Single Pole Single Throw - Normally Open) circuit configuration with momentary operation. This surface mount component is rated for 0.05A at 12VDC with top actuated orientation and gull wing termination. The part is currently active in production with 773 units in stock. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and circuit function can be maintained across different manufacturers while accommodating specific application requirements such as packaging format, actuator height, or environmental operating ranges.

Substiute Parts

MJTP1138C

APEM Inc.In Stock: 785MJTP1138C Datasheet

Current PartRFQ

7914G-1-000

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

SimilarRFQ

7914G-1-000E

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

SimilarRFQ

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

SimilarRFQ

FSM1JELGTR

TE Connectivity ALCOSWITCH SwitchesIn Stock: 20743FSM1JELGTR Datasheet

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FSM2JELGLTR

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1950FSM2JELGLTR Datasheet

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FSM2JELGXLTR

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1301FSM2JELGXLTR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MJTP1138C is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration must be SPST-NO
• Switch function must be Off-Mom (momentary operation)
• Mounting type must be Surface Mount with gull wing termination
• Actuator orientation must be Top Actuated
• Contact rating must support minimum 0.05A at 12VDC operation

Secondary Compatibility Considerations:

• Actuator height variance affects PCB clearance and mechanical fit
• Outline dimensions determine footprint compatibility
• Operating force affects tactile feedback characteristics
• Operating temperature range must encompass application requirements
• Mechanical life rating indicates durability expectations
• Packaging format (Bulk, Tube, Cut Tape, Tape & Reel) affects procurement and assembly processes

The substitute parts listed below maintain SPST-NO circuit configuration and momentary operation while varying in actuator height, operating force, temperature range, mechanical life, and packaging options. All substitutes are surface mount components with gull wing termination and top actuated orientation.

Parameter Comparison

Engineering Selection Recommendations

Bourns 7914G Series (7914G-1-000, 7914G-1-000E, 7914G-1-024E, 7914G-1-032E): These parts maintain SPST-NO circuit configuration and momentary operation with higher contact ratings (0.1A @ 16VAC/DC) and extended operating temperature range (-55°C ~ 125°C). The 7914G series incorporates IP67 ingress protection and silicone rubber actuators. Actuator height varies from 2.62mm (flush type) to 4.19mm (standard type), requiring PCB layout verification for clearance compatibility with the original 8.00mm height specification. Operating force is elevated at 300gf compared to the MJTP1138C at 160gf. All variants maintain 100,000 cycle mechanical life and ROHS3 compliance. Packaging options include Tube, Cut Tape & Digi-Reel, and Tape & Reel formats.

TE Connectivity Extended Life Series (FSM1JELGTR, FSM2JELGLTR, FSM2JELGXLTR): These parts match the MJTP1138C contact rating (0.05A @ 12VDC) and switch travel (0.25mm) with identical SPST-NO circuit and momentary operation. The Extended Life series provides 1,000,000 cycle mechanical life, representing a 10-fold improvement over the MJTP1138C. Operating temperature range is -35°C ~ 85°C, narrower than the MJTP1138C but suitable for standard industrial applications. Actuator heights range from 2.00mm to 2.50mm, significantly lower than the original 8.00mm, requiring PCB clearance assessment. Operating force varies: FSM1JELGTR at 160gf (matching MJTP1138C), FSM2JELGLTR at 100gf, and FSM2JELGXLTR at 50gf. Outline dimensions are 6.20mm x 6.20mm, slightly larger than the MJTP1138C at 6.00mm x 6.00mm. All TE Connectivity parts are supplied in Tape & Reel packaging and maintain MSL 1 rating.

Selection Criteria:

• For applications requiring higher contact ratings and extended temperature operation, select Bourns 7914G series variants
• For applications prioritizing extended mechanical life and matching contact specifications, select TE Connectivity Extended Life series
• Verify PCB layout clearance when substituting parts with reduced actuator heights
• Confirm packaging format compatibility with assembly processes
• Validate operating force requirements for user interface tactile feedback

Frequently Asked Questions (FAQ)

Q: Can the Bourns 7914G series directly replace the MJTP1138C without PCB modifications? A: The 7914G series maintains surface mount gull wing termination and top actuated orientation, but actuator heights range from 2.62mm to 4.19mm compared to the MJTP1138C at 8.00mm. PCB clearance above the switch must be verified. Outline dimensions are 5.00mm x 5.00mm versus 6.00mm x 6.00mm, requiring footprint validation.

Q: What is the primary difference between the TE Connectivity FSM1JELGTR and FSM2JELGLTR? A: Both maintain identical contact ratings (0.05A @ 12VDC) and mechanical life (1,000,000 cycles). The FSM1JELGTR has an actuator height of 2.00mm and operating force of 160gf. The FSM2JELGLTR has an actuator height of 2.50mm and reduced operating force of 100gf. Selection depends on available PCB clearance and desired tactile feedback force.

Q: Are all substitute parts RoHS compliant? A: All listed substitutes are RoHS compliant. The MJTP1138C, Bourns 7914G series, and TE Connectivity FSM1JELGTR are ROHS3 compliant. TE Connectivity FSM2JELGLTR and FSM2JELGXLTR are RoHS compliant. All parts maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the impact of operating force differences on switch performance? A: Operating force determines the tactile feedback and actuation pressure required. The MJTP1138C and FSM1JELGTR both specify 160gf. The Bourns 7914G series specifies 300gf, requiring greater actuation pressure. The FSM2JELGLTR specifies 100gf and FSM2JELGXLTR specifies 50gf, providing lighter actuation. Application requirements for user interface feel and mechanical reliability must guide selection.

Q: How does the 1,000,000 cycle mechanical life of TE Connectivity parts compare to the 100,000 cycle rating of MJTP1138C and Bourns parts? A: The TE Connectivity Extended Life series provides 10 times greater mechanical life, indicating extended durability for high-cycle applications. The MJTP1138C and Bourns 7914G series both specify 100,000 cycles, suitable for standard industrial applications with moderate actuation frequency.

Q: What packaging formats are available for each substitute? A: Bourns 7914G-1-000 is supplied in Tube packaging. Bourns 7914G-1-000E and 7914G-1-032E are supplied in Cut Tape & Digi-Reel format. Bourns 7914G-1-024E is supplied in Tape & Reel format. All TE Connectivity parts (FSM1JELGTR, FSM2JELGLTR, FSM2JELGXLTR) are supplied in Tape & Reel format. The MJTP1138C is supplied in Bulk packaging.

Q: Do the Bourns 7914G parts offer environmental protection advantages? A: The Bourns 7914G series specifies IP67 ingress protection (Dust Tight, Waterproof), whereas the MJTP1138C and TE Connectivity parts do not specify ingress protection ratings. IP67 rating is applicable for applications requiring moisture and dust resistance.

Q: Can operating temperature range differences affect substitution decisions? A: The MJTP1138C operates from -20°C to 70°C. The Bourns 7914G series extends to -55°C to 125°C, suitable for wider environmental conditions. The TE Connectivity Extended Life series operates from -35°C to 85°C. Application temperature requirements must be confirmed before substitution.