SW239CD7 Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The SW239CD7 is an APEM Inc. toggle switch featuring SPDT (Single Pole Double Throw) circuitry with On-Off-On switching function. This through-hole, right-angle mounted component is rated for 0.4VA at 20V AC/DC operation. The part is currently active in production with 868 units in stock. Alternative equivalent parts may be required due to supply constraints, packaging preferences, or specific application requirements such as operating temperature range or electrical life cycle specifications.

Substiute Parts

SW239CD7

APEM Inc.In Stock: 960SW239CD7 Datasheet

Current PartRFQ

7103MD9ABE

C&KIn Stock: 13317103MD9ABE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Equivalent substitution for the SW239CD7 is determined by strict alignment of the following critical parameters:

• Circuit configuration: SPDT
• Switch function: On-Off-On
• Current rating: 0.4VA (AC/DC)
• Voltage rating: 20V (AC and DC)
• Mounting type: Through Hole, Right Angle
• Termination style: PC Pin
• RoHS compliance: ROHS3 Compliant

The C&K 7103MD9ABE meets all mandatory electrical and mechanical substitution criteria. Variations in secondary parameters such as actuator length, operating temperature range, electrical life cycles, and sealing features do not prevent functional equivalence when these core parameters align.

Parameter Comparison

Engineering Selection Recommendations

Both SW239CD7 and 7103MD9ABE are active production components with ROHS3 compliance. Selection between these parts should be based on:

• Packaging format: SW239CD7 is supplied in bulk; 7103MD9ABE is supplied in tray format
• Operating temperature requirements: 7103MD9ABE supports -30°C minimum versus -20°C for SW239CD7
• Electrical life cycle requirements: SW239CD7 is rated for 50,000 cycles versus 40,000 cycles for 7103MD9ABE
• Inventory availability: 7103MD9ABE has 1,221 units in stock versus 868 units for SW239CD7
• Actuator length: SW239CD7 has 7.50mm actuator length; 7103MD9ABE has 6.86mm actuator length

Both parts satisfy the core electrical and mechanical requirements for SPDT toggle switch applications at 0.4VA, 20V operation with through-hole, right-angle mounting.

Frequently Asked Questions (FAQ)

Q: Can the 7103MD9ABE directly replace the SW239CD7 in existing designs?

A: Yes, provided that the 6.86mm actuator length of the 7103MD9ABE is compatible with your panel cutout and mechanical envelope. The electrical specifications, circuit configuration, and termination style are identical.

Q: What is the difference in electrical life between these parts?

A: The SW239CD7 is rated for 50,000 electrical cycles, while the 7103MD9ABE is rated for 40,000 cycles. Applications requiring extended cycle life should prioritize the SW239CD7.

Q: Are there packaging considerations when substituting?

A: Yes. The SW239CD7 is supplied in bulk packaging, while the 7103MD9ABE is supplied in tray format. Verify that your procurement and assembly processes accommodate the different packaging formats.

Q: Does the operating temperature range difference affect substitution?

A: The 7103MD9ABE supports a lower minimum operating temperature (-30°C versus -20°C). For applications operating below -20°C, the 7103MD9ABE is the appropriate choice. For applications within -20°C to 85°C, both parts are suitable.

Q: Are both parts RoHS compliant?

A: Yes, both SW239CD7 and 7103MD9ABE are ROHS3 compliant and suitable for applications requiring RoHS certification.