C&K 7201SDCBI Toggle Switch DPDT Equivalent & Substitute Parts

Part Overview

The C&K 7201SDCBI is an active-status toggle switch with DPDT (Double Pole Double Throw) configuration, rated for 0.4VA at 20V AC/DC. This panel-mount switch features a standard round actuator with PC pin termination and is designed for applications requiring reliable switching in the low-voltage, low-current domain. Substitute parts are identified to provide equivalent functionality when the primary part is unavailable or when alternative sourcing is required.

Substiute Parts

7201SDCBI

C&KIn Stock: 7947201SDCBI Datasheet

Current PartRFQ

100DP1T1B1M2QEH

E-SwitchIn Stock: 8034100DP1T1B1M2QEH Datasheet

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100DP1T6B15M2RE

E-SwitchIn Stock: 891100DP1T6B15M2RE Datasheet

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2-1825138-4

TE Connectivity ALCOSWITCH SwitchesIn Stock: 18262-1825138-4 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 7201SDCBI are qualified based on the following critical parameters that determine functional equivalence:

• Circuit Configuration: DPDT (all substitutes match)
• Switch Function: On-On (all substitutes match)
• Mounting Type: Panel Mount (all substitutes match)
• Termination Style: PC Pin (all substitutes match)
• Panel Cutout Dimensions: Circular - 6.35mm Dia (all substitutes match)
• Bushing Thread: 1/4-40 (all substitutes match)
• Operating Temperature Range: -30°C ~ 85°C (all substitutes match)

Substitutes are grouped into two categories based on electrical ratings:

Category A - Exact Electrical Match (0.4VA @ 20V AC/DC):

• E-Switch 100DP1T6B15M2RE
• TE Connectivity ALCOSWITCH 2-1825138-4

Category B - Higher Electrical Rating (5A @ 120V AC / 28V DC):

• E-Switch 100DP1T1B1M2QEH

Parameter Comparison

Engineering Selection Recommendations

For Direct Electrical Equivalence (0.4VA @ 20V AC/DC):

E-Switch 100DP1T6B15M2RE and TE Connectivity 2-1825138-4 provide electrical parameter matching to the 7201SDCBI. Both are active-status products with ROHS3 compliance. The E-Switch 100DP1T6B15M2RE features a flat anti-rotation actuator design, while the TE Connectivity 2-1825138-4 maintains a standard round actuator consistent with the original part. Electrical life ratings differ: the 7201SDCBI is rated for 100,000 cycles, while both substitutes are rated for lower cycle counts (40,000 and 6,000 cycles respectively).

For Higher Electrical Capacity Applications:

E-Switch 100DP1T1B1M2QEH provides increased electrical ratings (5A @ 120V AC / 28V DC) while maintaining mechanical compatibility. This substitute is suitable for applications requiring higher current or voltage capacity within the same panel-mount form factor. ROHS3 compliance is confirmed; however, REACH status differs from the original part.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and active product status. The 7201SDCBI and 2-1825138-4 are REACH Affected; the E-Switch parts are REACH Unaffected. Selection should account for supply chain compliance requirements specific to the application region.

Frequently Asked Questions (FAQ)

Q: Can E-Switch 100DP1T1B1M2QEH be used as a direct replacement for the C&K 7201SDCBI?

A: E-Switch 100DP1T1B1M2QEH is mechanically compatible (panel mount, same cutout dimensions, bushing thread, and termination) but has higher electrical ratings (5A @ 120V AC / 28V DC versus 0.4VA @ 20V AC/DC). It is suitable for applications where the circuit operates below the substitute's electrical limits. Electrical life is 40,000 cycles compared to the original 100,000 cycles.

Q: What is the difference between the two E-Switch substitutes?

A: E-Switch 100DP1T6B15M2RE matches the original electrical specifications exactly (0.4VA @ 20V AC/DC) and features a flat anti-rotation actuator. E-Switch 100DP1T1B1M2QEH has higher electrical ratings (5A @ 120V AC / 28V DC) with a standard round actuator. Both share identical mechanical mounting characteristics.

Q: Does the TE Connectivity 2-1825138-4 have the same electrical life as the original part?

A: No. The TE Connectivity 2-1825138-4 is rated for 6,000 electrical cycles, significantly lower than the C&K 7201SDCBI's 100,000 cycles. This should be considered for high-cycle-count applications.

Q: Are all substitutes available in the same packaging as the original?

A: The C&K 7201SDCBI is supplied in Tray packaging. All three substitutes are supplied in Bulk packaging. Packaging format should be confirmed with the supplier for procurement requirements.

Q: What actuator length differences exist among these parts?

A: The C&K 7201SDCBI has a 12.45mm actuator length. E-Switch 100DP1T6B15M2RE is 12.30mm (minimal difference). Both E-Switch 100DP1T1B1M2QEH and TE Connectivity 2-1825138-4 are 10.41mm. Actuator length may affect panel aesthetics and user interface feel; verify compatibility with panel design specifications.

Q: Are all parts ROHS3 compliant?

A: Yes. All four parts (original and three substitutes) are ROHS3 compliant. REACH status varies: C&K 7201SDCBI and TE Connectivity 2-1825138-4 are REACH Affected; both E-Switch parts are REACH Unaffected.