C&K 7101MD9AV2ME Toggle Switch SPDT Equivalent & Substitute Parts

Part Overview

The C&K 7101MD9AV2ME is a toggle switch with SPDT (Single Pole Double Throw) configuration rated for 5A at 120V AC and 28V DC. This part operates in the On-On switch function with through-hole, right-angle vertical mounting. The product status is listed as Obsolete, making identification of equivalent and substitute parts necessary for ongoing design support and procurement continuity. Substitute parts maintain the same electrical and mechanical specifications while offering active product status or improved availability.

Key Parameters

Parameter	Value
Manufacturer Part Number	7101MD9AV2ME
Manufacturer	C&K
Circuit Configuration	SPDT
Switch Function	On-On
Current Rating	5A (AC/DC)
Voltage Rating - AC	120 V
Voltage Rating - DC	28 V
Mounting Type	Through Hole, Right Angle, Vertical
Actuator Type	Standard Round
Actuator Length	6.86mm
Termination Style	PC Pin
Operating Temperature Range	-30°C ~ 85°C
Electrical Life	100,000 Cycles
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical and mechanical compatibility with the 7101MD9AV2ME:

Direct Equivalent (Same Electrical Ratings): Parts that maintain identical current rating (5A AC/DC), voltage rating (120V AC / 28V DC), circuit configuration (SPDT), switch function (On-On), mounting type (Through Hole, Right Angle, Vertical), and termination style (PC Pin). These parts are fully interchangeable from an electrical standpoint.

Similar Substitutes (Reduced Electrical Ratings or Modified Specifications): Parts that share the same circuit configuration (SPDT), switch function (On-On), mounting type (Through Hole, Right Angle, Vertical), and termination style (PC Pin), but operate at reduced current or voltage ratings, or feature different actuator lengths or electrical life specifications. These parts are suitable for applications where the full 5A/120V rating is not required.

Key Parameters Determining Substitution:

Circuit Configuration: SPDT (mandatory match)
Switch Function: On-On (mandatory match)
Mounting Type: Through Hole, Right Angle, Vertical (mandatory match)
Termination Style: PC Pin (mandatory match)
Current Rating: 5A AC/DC (for direct equivalents) or lower (for similar substitutes)
Voltage Rating - AC: 120V (for direct equivalents) or lower (for similar substitutes)
Voltage Rating - DC: 28V (for direct equivalents) or lower (for similar substitutes)
Operating Temperature: -30°C ~ 85°C (preferred match)

Parameter Comparison

Part Number	Manufacturer	Circuit	Current Rating	Voltage AC	Voltage DC	Mounting Type	Actuator Length	Electrical Life	Product Status	RoHS Status
7101MD9AV2ME	C&K	SPDT	5A	120V	28V	Through Hole, Right Angle, Vertical	6.86mm	100,000 Cycles	Obsolete	ROHS3 Compliant
7101MD9AV2SE	C&K	SPDT	5A	120V	28V	Through Hole, Right Angle, Vertical	6.86mm	100,000 Cycles	Active	RoHS Compliant
100SP1T2B4M7QE	E-Switch	SPDT	5A	120V	28V	Through Hole, Right Angle, Vertical	5.08mm	40,000 Cycles	Active	ROHS3 Compliant
100SP1T2B4M7RE	E-Switch	SPDT	0.4VA	20V	20V	Through Hole, Right Angle, Vertical	5.08mm	40,000 Cycles	Active	ROHS3 Compliant
100SP1T2B2M7QE	E-Switch	SPDT	5A	120V	28V	Through Hole, Right Angle, Vertical	5.08mm	40,000 Cycles	Active	ROHS3 Compliant
100SP1T2B2M7RE	E-Switch	SPDT	0.4VA	20V	20V	Through Hole, Right Angle, Vertical	5.08mm	40,000 Cycles	Active	ROHS3 Compliant
1825142-5	TE Connectivity ALCOSWITCH Switches	SPDT	0.4VA	20V	20V	Through Hole, Right Angle, Vertical	7.62mm	6,000 Cycles	Active	ROHS3 Compliant
A123P41D9AV2B	Electroswitch	SPDT	0.5VA	28V	28V	Through Hole, Right Angle, Vertical	6.35mm	60,000 Cycles	Active	RoHS Compliant
WT123M1D9AV2B	Electroswitch	SPDT	0.5VA	28V	28V	Through Hole, Right Angle, Vertical	7.60mm	60,000 Cycles	Active	RoHS Compliant
WT123M1D9AV2Q	Electroswitch	SPDT	6A	125V	28V	Through Hole, Right Angle, Vertical	7.60mm	60,000 Cycles	Active	RoHS Compliant

Engineering Selection Recommendations

Primary Recommendation - Direct Equivalent: The C&K 7101MD9AV2SE is the direct equivalent replacement for the obsolete 7101MD9AV2ME. Both parts share identical electrical ratings (5A AC/DC, 120V AC / 28V DC), circuit configuration (SPDT), switch function (On-On), mounting type (Through Hole, Right Angle, Vertical), and termination style (PC Pin). The 7101MD9AV2SE carries Active product status and maintains RoHS compliance, providing immediate procurement continuity with no design modifications required.

Secondary Recommendations - Full Electrical Rating Match: The E-Switch 100SP1T2B4M7QE and 100SP1T2B2M7QE both maintain the full 5A/120V electrical rating and SPDT configuration. These parts feature reduced actuator length (5.08mm versus 6.86mm) and lower electrical life (40,000 cycles versus 100,000 cycles). Selection of these parts requires verification that the reduced actuator length accommodates the panel cutout and that the lower cycle rating meets application requirements.

The Electroswitch WT123M1D9AV2Q exceeds the original specifications with 6A at 125V AC rating while maintaining 28V DC compatibility. This part is suitable for applications requiring higher current capacity and operates within the same temperature range (-30°C ~ 85°C).

Reduced Rating Alternatives: Parts with reduced electrical ratings (0.4VA at 20V or 0.5VA at 28V) including the E-Switch 100SP1T2B4M7RE, 100SP1T2B2M7RE, TE Connectivity 1825142-5, Electroswitch A123P41D9AV2B, and Electroswitch WT123M1D9AV2B are suitable only for applications where the full 5A/120V rating is not required. These parts maintain SPDT configuration and Through Hole, Right Angle, Vertical mounting but operate at significantly reduced power levels.

Compliance Considerations: All substitute parts listed maintain RoHS3 compliance or RoHS compliance status. The 7101MD9AV2SE and E-Switch parts carry ROHS3 Compliant designation. Electroswitch parts carry RoHS Compliant status. All parts are classified under ECCN EAR99 and HTSUS 8536.50.9065.

Frequently Asked Questions (FAQ)

Q: Can the 7101MD9AV2SE be used as a direct replacement for the 7101MD9AV2ME? A: Yes. The 7101MD9AV2SE is a direct equivalent with identical electrical ratings (5A AC/DC, 120V AC / 28V DC), circuit configuration (SPDT), switch function (On-On), mounting type (Through Hole, Right Angle, Vertical), and termination style (PC Pin). The primary difference is product status: the 7101MD9AV2SE is Active while the 7101MD9AV2ME is Obsolete.

Q: What is the significance of the actuator length difference between the 7101MD9AV2ME (6.86mm) and E-Switch alternatives (5.08mm)? A: Actuator length affects the physical engagement depth with the panel cutout. The E-Switch parts feature a shorter actuator length, which may impact compatibility with existing panel designs. Verify that the reduced length accommodates your specific panel cutout dimensions before selection.

Q: Are the E-Switch 100SP1T2B4M7QE and 100SP1T2B2M7QE interchangeable with the 7101MD9AV2ME? A: Both E-Switch parts maintain the full 5A/120V electrical rating and SPDT configuration required for electrical compatibility. However, they feature reduced actuator length (5.08mm versus 6.86mm) and lower electrical life (40,000 cycles versus 100,000 cycles). Verify that these differences are acceptable for your application before substitution.

Q: Can I use the Electroswitch WT123M1D9AV2Q as a replacement? A: The WT123M1D9AV2Q exceeds the original specifications with 6A at 125V AC rating. It maintains SPDT configuration, On-On switch function, Through Hole Right Angle Vertical mounting, and PC Pin termination. This part is suitable for applications where higher current capacity is beneficial or required, but design verification is necessary to confirm compatibility with existing circuit requirements.

Q: What is the difference between parts rated at 5A/120V and those rated at 0.4VA/20V or 0.5VA/28V? A: The reduced-rating parts operate at significantly lower power levels and are suitable only for low-power signal switching applications. These parts cannot be used in circuits requiring the full 5A/120V capacity of the original part. Selection of reduced-rating alternatives requires confirmation that application power requirements do not exceed the substitute part's electrical limits.

Q: Do all substitute parts maintain the same operating temperature range? A: Yes. All substitute parts listed operate within the -30°C ~ 85°C temperature range, matching the original 7101MD9AV2ME specification.

Q: What is the impact of electrical life differences (100,000 cycles for the original versus 40,000 or 60,000 cycles for substitutes)? A: Electrical life indicates the number of switching cycles the part is rated to perform before degradation. The original part is rated for 100,000 cycles. Substitute parts with lower electrical life ratings (40,000 or 60,000 cycles) may require more frequent replacement in high-cycle applications. Evaluate your application's switching frequency to determine if reduced electrical life is acceptable.

Q: Are all substitute parts RoHS compliant? A: Yes. All substitute parts carry either ROHS3 Compliant or RoHS Compliant designation, maintaining environmental compliance standards.

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