AE101MD1AB Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The AE101MD1AB is a toggle switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a Single Pole Double Throw (SPDT) switch with On-On functionality. This through-hole, right-angle mounted component operates at 0.4VA with voltage ratings of 20V AC/DC and features a standard round actuator with 7.62mm length. The part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and production continuity.

Key Parameters

Parameter	Value
Circuit Configuration	SPDT (Single Pole Double Throw)
Switch Function	On-On
Current Rating	0.4VA (AC/DC)
Voltage Rating - AC	20V
Voltage Rating - DC	20V
Mounting Type	Through Hole, Right Angle
Actuator Type	Standard Round
Actuator Length	7.62mm
Termination Style	PC Pin
Operating Temperature Range	-20°C to 85°C
Electrical Life	6,000 Cycles
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the AE101MD1AB is determined by strict alignment of electrical and mechanical parameters. The primary substitution criteria are:

Mandatory Matching Parameters:

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

Secondary Compatibility Parameters:

Actuator type and length (7.62mm standard round preferred)
Operating temperature range (minimum -20°C, maximum 85°C)
Electrical life rating (minimum 6,000 cycles)

Substitute parts are grouped into two categories:

Direct Substitutes (Identical Electrical & Mechanical Specifications): Parts that maintain all mandatory parameters and operate within the same environmental and performance specifications.

Compatible Alternatives (Equivalent Electrical Performance with Design Variations): Parts that satisfy all mandatory electrical parameters but may differ in actuator geometry, electrical life rating, or environmental specifications. These require design review to confirm mechanical fit and performance adequacy.

Parameter Comparison

Part Number	Manufacturer	Circuit	Current Rating	Voltage AC/DC	Mounting Type	Actuator Type	Actuator Length (mm)	Operating Temp (°C)	Electrical Life (Cycles)	Product Status	RoHS Status
AE101MD1AB	TE Connectivity ALCOSWITCH	SPDT	0.4VA	20V/20V	Through Hole, Right Angle	Standard Round	7.62	-20 to 85	6,000	Obsolete	Non-compliant
1825142-1	TE Connectivity ALCOSWITCH	SPDT	0.4VA	20V/20V	Through Hole, Right Angle	Standard Round	7.62	-30 to 85	6,000	Obsolete	ROHS3 Compliant
100SP1T2B4M6RE	E-Switch	SPDT	0.4VA	20V/20V	Through Hole, Right Angle	Standard Round	5.08	-30 to 85	40,000	Active	ROHS3 Compliant
E101MD1ABE	C&K	SPDT	0.4VA	20V/20V	Through Hole, Right Angle	Standard Round	7.62	-30 to 85	40,000	Active	ROHS3 Compliant
E101MD1A3BE	C&K	SPDT	0.4VA	20V/20V	Through Hole, Right Angle	Standard Round	7.62	-30 to 85	40,000	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: 1825142-1

The 1825142-1 manufactured by TE Connectivity ALCOSWITCH is the direct substitute for the AE101MD1AB. This part maintains identical electrical specifications (SPDT, 0.4VA, 20V AC/DC), mechanical configuration (through-hole right-angle mounting, standard round 7.62mm actuator), and electrical life rating (6,000 cycles). The 1825142-1 extends the operating temperature range to -30°C to 85°C and achieves ROHS3 compliance, addressing regulatory requirements while preserving form-fit-function compatibility. Both components are classified as obsolete within the Gemini AE series.

Secondary Recommendation: E101MD1ABE

The E101MD1ABE manufactured by C&K provides equivalent electrical performance with enhanced specifications. This part maintains all mandatory parameters (SPDT, 0.4VA, 20V AC/DC, through-hole right-angle mounting, standard round 7.62mm actuator) and is currently active in production. The E101MD1ABE offers extended electrical life (40,000 cycles versus 6,000 cycles), expanded operating temperature range (-30°C to 85°C), and ROHS3 compliance. The ingress protection rating of IP57 provides additional environmental sealing compared to the original part.

Tertiary Recommendation: 100SP1T2B4M6RE

The 100SP1T2B4M6RE manufactured by E-Switch satisfies all mandatory electrical parameters (SPDT, 0.4VA, 20V AC/DC, through-hole right-angle mounting, PC pin termination). This active production component features a shorter actuator length (5.08mm versus 7.62mm), which requires mechanical fit verification in the target application. The part provides superior electrical life (40,000 cycles) and ROHS3 compliance. The reduced actuator length may necessitate panel cutout or mounting bracket modifications.

Compliance Considerations:

The original AE101MD1AB is RoHS non-compliant. All recommended substitutes achieve ROHS3 compliance, supporting transition to current regulatory standards. The 1825142-1 maintains TE Connectivity sourcing continuity, while E101MD1ABE and 100SP1T2B4M6RE provide alternative manufacturer options with active production status.

Frequently Asked Questions (FAQ)

Q: Can the 1825142-1 directly replace the AE101MD1AB without design modifications?

A: Yes. The 1825142-1 maintains identical electrical specifications, circuit configuration, mounting type, actuator geometry, and termination style. The extended operating temperature range (-30°C to 85°C versus -20°C to 85°C) and ROHS3 compliance represent improvements over the original part. No design modifications are required for direct substitution.

Q: What is the significance of the 7.62mm actuator length difference between the AE101MD1AB and the 100SP1T2B4M6RE?

A: The AE101MD1AB and E101MD1ABE feature 7.62mm actuators, while the 100SP1T2B4M6RE features a 5.08mm actuator. This 2.54mm difference affects panel clearance, operator feel, and mechanical engagement with mounting brackets. Applications with tight panel spacing or specific actuator reach requirements must verify mechanical compatibility before substitution.

Q: Are all substitute parts available in the same packaging format as the original AE101MD1AB?

A: Packaging formats vary among substitutes. The 1825142-1 is available in standard packaging. The 100SP1T2B4M6RE is supplied in bulk packaging. The E101MD1ABE is supplied in tray packaging. Procurement specifications should confirm packaging requirements for assembly line compatibility and inventory management.

Q: What is the difference between the E101MD1ABE and E101MD1A3BE?

A: Both parts are manufactured by C&K and maintain identical electrical specifications (SPDT, 0.4VA, 20V AC/DC), mechanical configuration, and performance ratings. The designation difference reflects internal C&K product coding. Both are suitable substitutes for the AE101MD1AB with equivalent performance characteristics.

Q: Does the extended electrical life rating of substitute parts affect circuit design?

A: No. The electrical life rating (6,000 cycles for the original, 40,000 cycles for E101MD1ABE and 100SP1T2B4M6RE) indicates component durability and expected service life. Extended electrical life does not alter electrical performance, switching characteristics, or circuit behavior. Circuit designs remain unchanged when substituting parts with higher electrical life ratings.

Q: What compliance advantages do the substitute parts provide?

A: The AE101MD1AB is RoHS non-compliant. All recommended substitutes achieve ROHS3 compliance, supporting regulatory requirements in markets with RoHS directives. The 1825142-1 and E101MD1ABE are REACH Affected, while the 100SP1T2B4M6RE is REACH Unaffected. Compliance status should be verified against specific regional and customer requirements.

Q: Can the AE101MD1AB be used interchangeably with higher-rated switches such as the 7101MD9AGE?

A: No. The 7101MD9AGE is rated for 5A at 120V AC, significantly exceeding the AE101MD1AB specification of 0.4VA at 20V. While both are SPDT through-hole right-angle switches, the higher current and voltage ratings make the 7101MD9AGE unsuitable for low-voltage, low-current applications. Substitution must maintain the original electrical specifications to ensure circuit protection and component reliability.

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