SWW237CD7 Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The SWW237CD7 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 operates across -20°C to 85°C and delivers 50,000 electrical cycles. The part is ROHS3 compliant and currently active in production with 827 units in stock.

Equivalent and substitute parts become necessary when addressing supply chain constraints, inventory availability, or specific application requirements such as enhanced ingress protection or extended operating temperature ranges.

Substiute Parts

SWW237CD7

APEM Inc.In Stock: 905SWW237CD7 Datasheet

Current PartRFQ

7105MD9AV2BE

C&KIn Stock: 24227105MD9AV2BE Datasheet

SimilarRFQ

E105MD1AV2BE

C&KIn Stock: 1074E105MD1AV2BE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SWW237CD7 is determined by strict equivalence across the following critical parameters:

• Circuit configuration: SPDT
• Switch function: Mom-Off-Mom
• Current and voltage ratings: 0.4VA at 20V AC/DC
• Mounting configuration: Through hole, right angle, vertical orientation
• Termination: PC pin
• Actuator type: Standard round
• Non-illuminated design
• Unthreaded bushing
• RoHS3 compliance

The substitute parts listed below meet all mandatory electrical and mechanical requirements. Variations in secondary parameters such as actuator length, operating temperature range, electrical life cycles, sealing features, and plating materials are documented to support engineering selection based on specific application needs.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active production status and ROHS3 compliance, qualifying them for direct substitution in applications requiring SPDT Mom-Off-Mom toggle switches rated at 0.4VA and 20V.

The SWW237CD7 provides the highest electrical life rating at 50,000 cycles and operates across a narrower temperature range (-20°C to 85°C). Selection of this part is appropriate for standard applications with moderate cycle requirements.

The 7105MD9AV2BE extends the operating temperature range to -30°C and offers higher inventory availability (2401 units). The reduced electrical life (40,000 cycles) and slightly shorter actuator length (6.86mm versus 7.50mm) should be evaluated against specific application requirements.

The E105MD1AV2BE provides IP57 ingress protection (dust protected, waterproof), making it suitable for applications requiring enhanced environmental sealing. The extended temperature range (-30°C to 85°C) and actuator length of 7.62mm are documented. Electrical life is rated at 40,000 cycles.

Frequently Asked Questions (FAQ)

Q: Can the 7105MD9AV2BE replace the SWW237CD7 in all applications?

A: The 7105MD9AV2BE meets all mandatory electrical and mechanical substitution criteria. However, the reduced actuator length (6.86mm versus 7.50mm) and lower electrical life rating (40,000 versus 50,000 cycles) require verification against specific panel cutout dimensions and cycle count expectations.

Q: What is the primary advantage of the E105MD1AV2BE?

A: The E105MD1AV2BE provides IP57 ingress protection, qualifying it for applications requiring dust and water resistance. The extended operating temperature range (-30°C to 85°C) supports deployment in wider environmental conditions.

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

A: No. The SWW237CD7 is supplied in bulk packaging, while both C&K substitutes (7105MD9AV2BE and E105MD1AV2BE) are supplied in tray packaging. Packaging format should be confirmed against procurement and assembly requirements.

Q: Do the substitute parts carry the same compliance certifications?

A: All three parts are ROHS3 compliant with MSL rating 1 (unlimited). The 7105MD9AV2BE and E105MD1AV2BE carry REACH Affected status, while the SWW237CD7 is REACH Unaffected. Compliance documentation should be reviewed for specific regulatory requirements.

Q: What is the significance of the actuator material difference?

A: The SWW237CD7 features nickel-plated brass, while both C&K substitutes use chrome-plated brass. Both plating materials provide corrosion resistance appropriate for sealed switch designs. Material selection should be verified against specific environmental exposure conditions.