SY237CD7 Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The SY237CD7 is an APEM Inc. toggle switch featuring SPDT (Single Pole Double Throw) circuitry with momentary-off-momentary (Mom-Off-Mom) switching function. Rated for 0.4VA at 20V AC/DC, this through-hole mounted component is designed for applications requiring sealed, non-illuminated toggle switching. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Alternative models may be required due to inventory constraints, specific ingress protection requirements, or operational temperature range specifications.

Substiute Parts

SY237CD7

APEM Inc.In Stock: 1164SY237CD7 Datasheet

Current PartRFQ

E105MD1V3BE

C&KIn Stock: 984E105MD1V3BE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The E105MD1V3BE from C&K qualifies as a functional substitute for the SY237CD7 based on the following critical parameters:

Matching Electrical Specifications:

• SPDT circuit configuration
• Mom-Off-Mom switch function
• 0.4VA current rating (AC/DC)
• 20V voltage rating (AC/DC)

Matching Mechanical Specifications:

• Through-hole mounting type
• PC pin termination style
• Standard round actuator
• Unthreaded bushing

Matching Compliance & Status:

• Active product status
• ROHS3 compliance
• MSL 1 (Unlimited) rating
• EAR99 ECCN classification

Substitution is valid where the noted parameter differences do not conflict with application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the SY237CD7 and E105MD1V3BE maintain Active product status with full ROHS3 compliance and identical MSL ratings, supporting long-term supply chain viability. The SY237CD7 offers a narrower operating temperature range (-20°C to 85°C) with higher electrical life rating (50,000 cycles). The E105MD1V3BE provides an extended lower temperature operating range (-30°C to 85°C) and includes IP57 ingress protection (dust protected, waterproof) with epoxy sealed terminals, making it suitable for applications requiring enhanced environmental sealing. The 0.12mm actuator length difference (7.50mm vs. 7.62mm) and 10,000-cycle electrical life difference are secondary considerations dependent on specific application constraints.

Frequently Asked Questions (FAQ)

Q: Can E105MD1V3BE replace SY237CD7 in all applications?

A: Substitution is valid where the application does not require the specific operating temperature minimum of -20°C (E105MD1V3BE operates to -30°C, providing broader coverage). The 0.12mm actuator length difference and 10,000-cycle electrical life reduction must be evaluated against application requirements.

Q: What are the key differences between these parts?

A: The primary differences are operating temperature range (SY237CD7: -20°C to 85°C; E105MD1V3BE: -30°C to 85°C), electrical life (SY237CD7: 50,000 cycles; E105MD1V3BE: 40,000 cycles), ingress protection (E105MD1V3BE includes IP57), and actuator length (0.12mm variance). All electrical and mechanical core specifications remain identical.

Q: Are both parts RoHS compliant?

A: Yes, both SY237CD7 and E105MD1V3BE are ROHS3 compliant with identical MSL 1 (Unlimited) ratings.

Q: What packaging formats are available?

A: SY237CD7 is supplied in Bulk packaging (1096 pcs in stock). E105MD1V3BE is supplied in Tray packaging (912 pcs in stock).

Q: Does the actuator length difference affect PCB layout?

A: The 0.12mm difference (7.50mm vs. 7.62mm) is minimal and typically does not impact standard PCB design. Verify against specific mechanical clearance requirements in your application.