DS202A Equivalent & Substitute Parts

Part Overview

The DS202A is a snap action switch manufactured by C&K in the DS/COMAX series. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement. Substitute parts must maintain electrical compatibility and mechanical interchangeability within the constraints of the original application requirements.

Substiute Parts

DS202A

C&KIn Stock: 927DS202A Datasheet

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MJTP1193

APEM Inc.In Stock: 705MJTP1193 Datasheet

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MJTP11933

APEM Inc.In Stock: 1028MJTP11933 Datasheet

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MJTP11935

APEM Inc.In Stock: 750MJTP11935 Datasheet

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MJTP11936

APEM Inc.In Stock: 995MJTP11936 Datasheet

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MJTP1212

APEM Inc.In Stock: 1655MJTP1212 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DS202A have been identified based on functional equivalence within the tactile switch category. All substitute parts are manufactured by APEM Inc. and belong to the MJTP series. Substitution logic is based on the following criteria derived from provided specifications:

Circuit configuration: SPST-NO (Single Pole Single Throw - Normally Open) Switch function: Off-Momentary Contact rating: 0.05A @ 12VDC Mounting type: Through Hole Termination style: PC Pin Operating temperature range: -20°C ~ 70°C Mechanical life: 100,000 Cycles RoHS compliance: ROHS3 Compliant Moisture sensitivity: 1 (Unlimited)

Substitute parts are grouped by actuator configuration and illumination characteristics. Non-illuminated variants (MJTP1193, MJTP1212) provide direct functional replacement. Illuminated variants (MJTP11933, MJTP11935, MJTP11936) offer enhanced user interface capability with LED feedback in green, yellow, and red respectively.

Parameter Comparison

Engineering Selection Recommendations

All APEM Inc. MJTP series substitute parts maintain active product status, ensuring long-term availability and supply chain continuity. All substitutes comply with ROHS3 standards and carry REACH Unaffected certification, meeting current regulatory requirements.

For applications requiring direct form-factor replacement with minimal PCB redesign, MJTP1193 and MJTP1212 provide non-illuminated alternatives. MJTP1193 maintains the 6.40mm x 6.20mm footprint with 7.00mm actuator height, while MJTP1212 offers a larger 12.00mm x 12.00mm footprint with reduced 4.30mm actuator height.

For applications where user interface feedback is beneficial, illuminated variants MJTP11933 (green LED), MJTP11935 (yellow LED), and MJTP11936 (red LED) provide identical electrical and mechanical specifications to MJTP1193 with the addition of 2.1 VDC LED illumination.

Selection between substitute parts depends on PCB layout constraints, actuator height requirements, and illumination requirements. All substitutes share identical electrical ratings, operating temperature range, and mechanical life specifications.

Frequently Asked Questions (FAQ)

Q: Can MJTP1193 directly replace DS202A without PCB modification? A: MJTP1193 provides electrical equivalence as a SPST-NO momentary switch with 0.05A @ 12VDC rating. Mechanical compatibility depends on the original DS202A footprint and mounting hole pattern, which are not specified in the DS202A parameters. PCB layout review is required.

Q: What is the difference between MJTP1193 and the illuminated variants? A: MJTP1193 is non-illuminated. MJTP11933, MJTP11935, and MJTP11936 are identical except for LED illumination: green, yellow, and red respectively, each requiring 2.1 VDC. All other electrical and mechanical specifications are identical.

Q: Why is MJTP1212 larger than other MJTP substitutes? A: MJTP1212 features a flush actuator type with 4.30mm height compared to 7.00mm square button actuators in other variants. The larger 12.00mm x 12.00mm footprint accommodates the flush design. Selection depends on available PCB space and actuator profile requirements.

Q: Are all substitute parts RoHS compliant? A: All APEM Inc. MJTP series substitutes are ROHS3 compliant. The original DS202A carries "Not applicable" RoHS status due to its obsolete classification.

Q: What is the mechanical life expectancy of substitute parts? A: All substitute parts are rated for 100,000 mechanical cycles at 160gf operating force, consistent with the original DS202A specifications.

Q: Are substitute parts available in bulk packaging? A: All APEM Inc. MJTP series substitutes are supplied in bulk packaging. Current inventory levels range from 617 to 1627 pieces across all variants.