APEM 5249CDB Toggle Switch DPDT Equivalent & Substitute Parts

Part Overview

The APEM 5249CDB is an active production toggle switch featuring DPDT (Double Pole Double Throw) circuitry with On-Off-On switching function. This panel-mount component is rated for 0.4VA at 20V AC/DC operation. The switch is designed for applications requiring reliable electromechanical switching with sealed terminal construction and extended operating temperature range. Substitute parts are identified when equivalent electrical ratings, circuit configuration, and mechanical mounting compatibility are maintained across the specified parameter set.

Substiute Parts

5249CDB

APEM Inc.In Stock: 8185249CDB Datasheet

Current PartRFQ

7203SYZBE

C&KIn Stock: 7947203SYZBE Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the APEM 5249CDB is determined by strict equivalence across the following critical parameters:

Electrical Equivalence: Circuit type (DPDT), switch function (On-Off-On), current rating (0.4VA AC/DC), and voltage rating (20V AC/DC) must be identical.

Mechanical Compatibility: Mounting type (panel mount), actuator type (standard round), and bushing thread specification (1/4-40) must match to ensure direct installation compatibility.

Regulatory Compliance: RoHS3 compliance is required for substitution eligibility.

Termination Consideration: Termination style may vary (PC Pin vs. Solder Lug) provided the electrical connection method is compatible with the application circuit design.

The C&K 7203SYZBE meets these substitution criteria while maintaining functional and mechanical equivalence to the APEM 5249CDB.

Parameter Comparison

Engineering Selection Recommendations

Both the APEM 5249CDB and C&K 7203SYZBE are active production components with ROHS3 compliance and MSL Level 1 rating, confirming suitability for standard manufacturing and storage conditions.

APEM 5249CDB Selection: Preferred when PC Pin termination is required for direct PCB mounting or when the extended operating temperature range (-40°C to 85°C) and higher electrical life rating (50,000 cycles) are specified design requirements.

C&K 7203SYZBE Selection: Suitable when solder lug termination is compatible with the application circuit and the operating temperature range (-30°C to 85°C) and electrical life rating (40,000 cycles) satisfy design specifications.

Panel cutout diameter variation (6.50mm vs. 6.35mm) and actuator length difference (10.50mm vs. 10.67mm) require mechanical verification against panel specifications and clearance requirements before final component selection.

Frequently Asked Questions (FAQ)

Q: Can the C&K 7203SYZBE directly replace the APEM 5249CDB in existing designs?

A: Direct replacement is possible when the application circuit accommodates solder lug termination and the mechanical panel cutout and actuator clearance specifications are verified. The electrical ratings and circuit configuration are equivalent.

Q: What is the significance of the termination style difference?

A: PC Pin termination (APEM 5249CDB) is designed for direct insertion into PCB holes, while solder lug termination (C&K 7203SYZBE) requires manual soldering to circuit traces or wire connections. Circuit design must support the selected termination method.

Q: Are there temperature range limitations when substituting these parts?

A: The C&K 7203SYZBE operates at -30°C minimum versus the APEM 5249CDB at -40°C minimum. Applications requiring operation below -30°C must use the APEM part. Both components operate to 85°C maximum.

Q: Does the electrical life rating difference affect component selection?

A: The APEM 5249CDB is rated for 50,000 cycles versus 40,000 cycles for the C&K 7203SYZBE. Applications with high switching frequency or extended service life requirements should specify the APEM component.

Q: Are both parts compliant with current regulatory requirements?

A: Both components are ROHS3 compliant and carry MSL Level 1 rating, confirming compliance with current environmental and moisture sensitivity standards for industrial and commercial applications.