TL37WW00050 Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The TL37WW00050 is an APEM Inc. toggle switch featuring SPDT (Single Pole Double Throw) circuitry with momentary-off-momentary (Mom-Off-Mom) switching function. This through-hole, right-angle vertical mounted component is rated for 0.4VA at 20V AC/DC operation. The part is currently active in production with 930 units in stock. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and circuit configuration requirements necessitate alternative sourcing due to availability, lead time, or procurement constraints.

Substiute Parts

TL37WW00050

APEM Inc.In Stock: 1001TL37WW00050 Datasheet

Current PartRFQ

ET05MD1AVBE

C&KIn Stock: 1370ET05MD1AVBE Datasheet

SimilarRFQ

T105MH9AVBE

C&KIn Stock: 1153T105MH9AVBE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TL37WW00050 are qualified based on strict equivalence across the following critical parameters:

• Circuit configuration: SPDT only
• Switch function: Mom-Off-Mom operation
• Current rating: 0.4VA (AC/DC)
• Voltage rating: 20V AC and 20V DC
• Mounting type: Through hole, right angle, vertical orientation
• Termination style: PC pin
• Actuator type: Standard round
• Operating temperature range: -30°C to 85°C
• Electrical life: 30,000 cycles minimum
• RoHS compliance: ROHS3 compliant

The identified substitutes ET05MD1AVBE and T105MH9AVBE meet all mandatory electrical and mechanical parameters. Variations in actuator length, plating material, ingress protection rating, and packaging format do not affect functional equivalence for standard switching applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active production status and ROHS3 compliance, confirming ongoing manufacturer support and regulatory alignment. The TL37WW00050 remains the primary specification; however, ET05MD1AVBE and T105MH9AVBE provide functionally equivalent alternatives when primary sourcing is constrained.

ET05MD1AVBE offers enhanced ingress protection (IP57 - dust protected, waterproof) compared to the primary part, making it suitable for applications requiring environmental sealing. The 6.10mm actuator length represents a 0.80mm increase over the primary specification and must be verified against panel cutout and mechanical envelope constraints.

T105MH9AVBE provides the closest actuator length match (5.33mm versus 5.30mm) to the primary part, minimizing mechanical redesign risk. This part is recommended when panel geometry and actuator clearance are critical design factors.

Both C&K substitutes are REACH affected, whereas the APEM primary part is REACH unaffected. Procurement teams must confirm REACH compliance requirements for end-use applications and geographic distribution.

Frequently Asked Questions (FAQ)

Q: Can ET05MD1AVBE be used as a direct replacement for TL37WW00050?

A: ET05MD1AVBE meets all electrical and functional specifications (SPDT, Mom-Off-Mom, 0.4VA, 20V, 30,000 cycles). The 6.10mm actuator length differs from the primary 5.30mm specification. Direct substitution is electrically valid; mechanical compatibility must be confirmed against panel cutout dimensions and actuator clearance requirements.

Q: What is the difference between the two C&K substitutes?

A: Both ET05MD1AVBE and T105MH9AVBE are electrically equivalent. ET05MD1AVBE includes IP57 ingress protection and features a 6.10mm actuator. T105MH9AVBE has no ingress protection rating and a 5.33mm actuator length, providing closer dimensional alignment to the primary part. Selection depends on environmental exposure and mechanical envelope constraints.

Q: Are there packaging differences between the primary part and substitutes?

A: The TL37WW00050 is supplied in bulk packaging, while both C&K substitutes (ET05MD1AVBE and T105MH9AVBE) are supplied in tray packaging. Procurement and assembly processes may require adjustment to accommodate different packaging formats.

Q: Do REACH compliance differences affect substitution eligibility?

A: The TL37WW00050 is REACH unaffected, while both C&K substitutes are REACH affected. Applications requiring REACH unaffected components must confirm regulatory requirements for the end-use market and geographic distribution before selecting a substitute.

Q: What electrical life expectancy should be assumed for these parts?

A: All three parts are rated for 30,000 electrical cycles minimum. This specification applies to the Mom-Off-Mom switching function under rated load conditions (0.4VA at 20V AC/DC).