E103SD1AV2PE Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The E103SD1AV2PE is an active-status toggle switch manufactured by C&K, configured as a single-pole double-throw (SPDT) switch with On-Off-On functionality. This through-hole, right-angle vertical mount component is rated for 0.4VA at 20V AC/DC operation with IP57 ingress protection and epoxy-sealed terminals. The component remains in active production with 1,126 units currently in stock.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the allowed parameter ranges for toggle switch applications. Alternative sources may be required due to supply chain considerations, lead time requirements, or inventory availability.

Key Parameters

Parameter	Value
Manufacturer Part Number	E103SD1AV2PE
Manufacturer	C&K
Circuit Configuration	SPDT
Switch Function	On-Off-On
Current Rating	0.4VA (AC/DC)
Voltage Rating - AC	20 V
Voltage Rating - DC	20 V
Mounting Type	Through Hole, Right Angle, Vertical
Termination Style	PC Pin
Actuator Type	Standard Round
Actuator Length	12.70mm
Ingress Protection	IP57 - Dust Protected, Waterproof
Operating Temperature Range	-30°C ~ 85°C
Electrical Life	40,000 Cycles
Product Status	Active
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the E103SD1AV2PE is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Circuit configuration: SPDT
Switch function: On-Off-On
Mounting type: Through Hole, Right Angle, Vertical
Termination style: PC Pin
Actuator type: Standard Round
Operating temperature range: -30°C ~ 85°C or wider
Electrical life: 40,000 cycles minimum
RoHS3 compliance status

Allowable Variation Parameters:

Current rating: Must equal or exceed 0.4VA
Voltage rating (AC): Must equal or exceed 20V
Voltage rating (DC): Must equal or exceed 20V
Actuator length: Mechanical tolerance within application constraints
Ingress protection: IP57 or equivalent protection level acceptable

The substitute part 100SP3T1B4M7QE (E-Switch) meets all mandatory compatibility criteria and exceeds electrical performance specifications, making it a valid substitute for applications where higher current and voltage ratings are acceptable.

Parameter Comparison

Parameter	E103SD1AV2PE (C&K)	100SP3T1B4M7QE (E-Switch)	Compatibility Status
Circuit Configuration	SPDT	SPDT	Match
Switch Function	On-Off-On	On-Off-On	Match
Mounting Type	Through Hole, Right Angle, Vertical	Through Hole, Right Angle, Vertical	Match
Termination Style	PC Pin	PC Pin	Match
Actuator Type	Standard Round	Standard Round	Match
Current Rating	0.4VA (AC/DC)	5A (AC/DC)	Substitute exceeds specification
Voltage Rating - AC	20 V	120 V	Substitute exceeds specification
Voltage Rating - DC	20 V	28 V	Substitute exceeds specification
Actuator Length	12.70mm	10.41mm	Mechanical variation - verify panel cutout compatibility
Operating Temperature Range	-30°C ~ 85°C	-30°C ~ 85°C	Match
Electrical Life	40,000 Cycles	40,000 Cycles	Match
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Match
Product Status	Active	Active	Both in active production

Engineering Selection Recommendations

Both the E103SD1AV2PE and 100SP3T1B4M7QE are active-status components with ROHS3 compliance, ensuring regulatory alignment for current and future applications. The E103SD1AV2PE remains the primary specification when the application operates within its 0.4VA and 20V electrical envelope.

The 100SP3T1B4M7QE serves as a valid substitute when higher electrical performance margins are required or when supply constraints necessitate an alternative source. The substitute's elevated current (5A) and voltage ratings (120V AC / 28V DC) provide operational headroom for applications with potential load variations. Both components share identical circuit topology, switch function, mounting configuration, and termination style.

The actuator length difference (12.70mm versus 10.41mm) requires verification against panel cutout dimensions and mechanical assembly constraints specific to the application. This dimensional variation does not affect electrical compatibility but must be confirmed for physical installation feasibility.

Frequently Asked Questions (FAQ)

Q: Can the 100SP3T1B4M7QE directly replace the E103SD1AV2PE in all applications?

A: Direct substitution is valid for electrical circuit compatibility. The SPDT On-Off-On configuration, PC pin termination, and operating temperature range are identical. However, the 2.29mm actuator length difference requires confirmation that the substitute's shorter stem accommodates the application's panel thickness and cutout geometry.

Q: What are the key electrical differences between these parts?

A: The E103SD1AV2PE is rated for 0.4VA at 20V AC/DC. The 100SP3T1B4M7QE is rated for 5A at 120V AC and 28V DC. Both specifications are compliant with ROHS3 and share identical electrical life ratings (40,000 cycles). The substitute provides higher electrical performance margins.

Q: Are both parts suitable for applications requiring IP57 ingress protection?

A: The E103SD1AV2PE explicitly specifies IP57 protection with epoxy-sealed terminals. The 100SP3T1B4M7QE does not list ingress protection specifications in the provided data. Applications requiring documented IP57 compliance should specify the E103SD1AV2PE unless the substitute's protection level is independently verified.

Q: What compliance certifications apply to both parts?

A: Both components are ROHS3 compliant and carry EAR99 ECCN classification. The E103SD1AV2PE is REACH Affected; the 100SP3T1B4M7QE is REACH Unaffected. Regulatory requirements specific to the end application should determine which part meets compliance obligations.

Q: How do the electrical life ratings compare?

A: Both parts are rated for 40,000 electrical cycles, indicating equivalent mechanical durability and switch reliability under normal operating conditions.

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