MJTP1138F Tactile Switch SPST-NO Equivalent & Substitute Parts

Part Overview

The MJTP1138F is an active-status tactile switch manufactured by APEM Inc., configured as a SPST-NO (Single Pole Single Throw - Normally Open) momentary contact switch. This surface mount component is rated for 0.05A at 12VDC with top actuation and gull wing termination. The part is ROHS3 compliant and carries unlimited moisture sensitivity level (MSL 1), making it suitable for standard industrial and consumer applications. Equivalent and substitute parts are identified based on matching circuit topology, electrical ratings, mounting characteristics, and mechanical specifications to ensure direct functional replacement in PCB designs.

Substiute Parts

MJTP1138F

APEM Inc.In Stock: 818MJTP1138F 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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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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TL3301PF260QG

E-SwitchIn Stock: 13884TL3301PF260QG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MJTP1138F are grouped into two categories based on electrical and mechanical compatibility:

Group 1: Direct Electrical Equivalents (Matching Contact Rating) Parts FSM1JELGTR, FSM2JELGLTR, and FSM2JELGXLTR from TE Connectivity ALCOSWITCH Switches series maintain the identical 0.05A @ 12VDC contact rating, SPST-NO circuit configuration, and momentary switch function. These parts share the same switch travel (0.25mm), gull wing termination, and top actuation orientation. Substitution within this group is based on matching electrical specifications and mechanical interface compatibility.

Group 2: Higher-Rated Alternatives (Enhanced Electrical Capability) Parts 7914G-1-000, 7914G-1-000E, 7914G-1-024E, and 7914G-1-032E from Bourns Inc. provide higher contact ratings (0.1A @ 16VAC/DC) while maintaining SPST-NO configuration and momentary function. These parts are suitable for applications where the design margin requires higher electrical capacity. The Bourns 7914 series includes IP67 ingress protection and extended temperature range (-55°C ~ 125°C).

Group 3: Mechanical Variant (Matching Electrical Rating) Part TL3301PF260QG from E-Switch matches the MJTP1138F electrical rating (0.05A @ 12VDC) and mechanical outline (6.00mm x 6.00mm, 8.50mm actuator height) but differs in operating force (260gf vs. 160gf).

Substitution logic is determined by: circuit configuration (SPST-NO), switch function (Off-Mom), contact rating compatibility, mounting type (Surface Mount), termination style (Gull Wing), and actuator orientation (Top Actuated).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement with Identical Specifications: FSM1JELGTR and FSM2JELGLTR maintain the 0.05A @ 12VDC contact rating and momentary SPST-NO function. Both are ROHS3 compliant with unlimited MSL rating. FSM1JELGTR preserves the 160gf operating force of the MJTP1138F, while FSM2JELGLTR reduces operating force to 100gf. Both parts feature extended mechanical life (1,000,000 cycles vs. 100,000 cycles) and are available in Tape & Reel packaging for automated assembly.

For Higher Electrical Margin Applications: The Bourns 7914G series (7914G-1-000, 7914G-1-000E, 7914G-1-024E, 7914G-1-032E) provides 0.1A @ 16VAC/DC contact rating with ROHS3 compliance. These parts are suitable when design requirements demand higher electrical capacity or extended temperature operation (-55°C ~ 125°C). The 7914G-1-024E offers the lowest actuator height (2.62mm) for space-constrained designs, while 7914G-1-032E provides 3.43mm height as a mid-range option.

For Mechanical Compatibility with Enhanced Operating Force: TL3301PF260QG from E-Switch matches the MJTP1138F outline (6.00mm x 6.00mm) and actuator height (8.50mm) while providing higher operating force (260gf). This part is ROHS3 compliant and maintains the -20°C ~ 70°C operating temperature range.

For Lowest Operating Force Applications: FSM2JELGXLTR provides the lowest operating force (50gf) among substitutes while maintaining 0.05A @ 12VDC rating and 1,000,000 cycle mechanical life. This part is suitable for applications requiring minimal actuation effort.

All substitute parts maintain SPST-NO circuit configuration, momentary switch function, gull wing termination, and top actuation orientation required for functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can I substitute a Bourns 7914G series part for the MJTP1138F in a 12V circuit? A: Yes. The Bourns 7914G series is rated for 0.1A @ 16VAC/DC, which exceeds the MJTP1138F requirement of 0.05A @ 12VDC. The higher voltage and current rating provides design margin. However, verify PCB layout compatibility, as the 7914G outline is 5.00mm x 5.00mm compared to the MJTP1138F 6.00mm x 6.00mm.

Q: What is the difference between FSM1JELGTR and FSM2JELGLTR? A: Both parts maintain the 0.05A @ 12VDC contact rating and SPST-NO configuration. FSM1JELGTR has 160gf operating force (matching MJTP1138F), while FSM2JELGLTR has 100gf. FSM2JELGLTR requires less actuation force. Both offer 1,000,000 cycle mechanical life and are available in Tape & Reel packaging.

Q: Are there packaging differences between substitute parts? A: Yes. The MJTP1138F is supplied in Bulk packaging. Substitute parts are available in Tube (7914G-1-000), Cut Tape & Digi-Reel (7914G-1-000E, 7914G-1-032E, TL3301PF260QG), and Tape & Reel (7914G-1-024E, FSM1JELGTR, FSM2JELGLTR, FSM2JELGXLTR). Tape & Reel packaging is standard for automated PCB assembly.

Q: Which substitute offers the longest mechanical life? A: TE Connectivity ALCOSWITCH parts (FSM1JELGTR, FSM2JELGLTR, FSM2JELGXLTR) offer 1,000,000 cycle mechanical life, compared to 100,000 cycles for the MJTP1138F and other substitutes. This extended life is beneficial for high-cycle applications.

Q: Can I use TL3301PF260QG as a direct replacement? A: TL3301PF260QG matches the MJTP1138F outline (6.00mm x 6.00mm), actuator height (8.50mm), and electrical rating (0.05A @ 12VDC). The primary difference is higher operating force (260gf vs. 160gf), which may affect user experience in tactile feedback applications. Verify that the increased actuation force is acceptable for your application.

Q: What is the temperature operating range difference between substitutes? A: The MJTP1138F operates from -20°C to 70°C. TE Connectivity ALCOSWITCH parts (FSM series) operate from -35°C to 85°C, providing wider low-temperature capability. Bourns 7914G series operates from -55°C to 125°C, offering the widest temperature range for extreme environment applications.

Q: Are all substitute parts RoHS compliant? A: Yes. The MJTP1138F and all substitute parts listed are RoHS compliant. APEM Inc., Bourns Inc., TE Connectivity ALCOSWITCH, and E-Switch parts are ROHS3 compliant or RoHS compliant, meeting environmental regulations for lead-free manufacturing.