MJTP1232 Tactile Switch SPST-NO Equivalent & Substitute Parts

Part Overview

The MJTP1232 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 component is rated for 0.05A at 12VDC with top-actuated through-hole mounting and a 6.00mm x 6.00mm footprint. The switch delivers tactile feedback with 160gf operating force and supports 100,000 mechanical cycles. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and mounting configurations align with the main part specifications.

Substiute Parts

MJTP1232

APEM Inc.In Stock: 1075MJTP1232 Datasheet

Current PartRFQ

1825955-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 260621825955-2 Datasheet

SimilarRFQ

PTS645TL43-2 LFS

C&KIn Stock: 2739PTS645TL43-2 LFS Datasheet

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PTS645TM43-2 LFS

C&KIn Stock: 8114PTS645TM43-2 LFS Datasheet

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TLE1105F160Q

E-SwitchIn Stock: 3942TLE1105F160Q Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MJTP1232 are qualified based on the following criteria:

Electrical Compatibility: Circuit configuration (SPST-NO), switch function (Off-Mom), contact rating (0.05A), and voltage rating must match or exceed the main part specification.

Mechanical Compatibility: Through-hole mounting type, top-actuated orientation, 6.00mm x 6.00mm outline, 4.30mm actuator height, and PC pin termination must be identical.

Operational Parameters: Operating force and mechanical life cycle rating determine functional equivalence in tactile response and durability.

Compliance & Status: All substitute parts must maintain active product status and ROHS3 compliance to ensure long-term availability and regulatory alignment.

The following parts meet these substitution criteria:

• PTS645TL43-2 LFS (C&K)
• PTS645TM43-2 LFS (C&K)
• TLE1105F160Q (E-Switch)

The part 1825955-2 (TE Connectivity) differs in voltage rating (24VDC vs. 12VDC) and switch travel specification, limiting its direct substitution applicability.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Identical Electrical & Mechanical Specifications):

PTS645TM43-2 LFS and TLE1105F160Q are direct substitutes for MJTP1232. Both maintain 0.05A @ 12VDC contact rating, 160gf operating force, and all mechanical dimensions. All three parts are active-status products with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Compatible Substitute (Operating Force Variance):

PTS645TL43-2 LFS is compatible with MJTP1232 across all electrical and mechanical parameters except operating force, which is specified at 130gf versus 160gf. This 30gf reduction in actuation force may affect tactile feedback characteristics in applications requiring precise force feedback. The part remains electrically and mechanically compatible for standard momentary switching applications.

Limited Substitution (Voltage Rating Difference):

1825955-2 is rated for 0.05A @ 24VDC, exceeding the 12VDC requirement of MJTP1232. While this part shares identical mechanical dimensions and through-hole configuration, the elevated voltage rating and differing switch travel specification (0.10mm versus 0.25mm) indicate design optimization for higher-voltage applications. Use of this part in 12VDC circuits is not recommended without circuit-level validation.

Frequently Asked Questions (FAQ)

Q: Can PTS645TL43-2 LFS replace MJTP1232 in all applications?

A: PTS645TL43-2 LFS is mechanically and electrically compatible with MJTP1232 for standard SPST-NO momentary switching. The 130gf operating force (versus 160gf) represents a 19% reduction in actuation force. Applications requiring specific tactile feedback or force-sensitive operation should evaluate this variance against design requirements.

Q: Why is 1825955-2 listed as a substitute if the voltage rating differs?

A: 1825955-2 is included in the substitute list based on provided input data. However, the 24VDC rating and 0.10mm switch travel differ from MJTP1232 specifications. Direct substitution in 12VDC circuits is not recommended without circuit validation.

Q: Are all substitute parts available in the same packaging format?

A: All listed parts are supplied in bulk packaging. Inventory availability varies: MJTP1232 (986 pcs), PTS645TL43-2 LFS (2,698 pcs), PTS645TM43-2 LFS (8,059 pcs), TLE1105F160Q (3,905 pcs), and 1825955-2 (25,981 pcs).

Q: Do all substitute parts meet the same compliance standards?

A: All parts listed are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8536.50.9031. All maintain MSL 1 (unlimited) moisture sensitivity level.

Q: What is the primary difference between PTS645TL43-2 LFS and PTS645TM43-2 LFS?

A: Both are C&K PTS645 series parts with identical mechanical and electrical specifications. The primary difference is operating force: PTS645TL43-2 LFS is specified at 130gf, while PTS645TM43-2 LFS matches MJTP1232 at 160gf. Both support -40°C to 85°C operating temperature range.