C&K 1201M2S3CRE2 Equivalent & Substitute Parts

Part Overview

The C&K 1201M2S3CRE2 is an active-status slide switch with DPDT circuit configuration, rated for 6A at 120V AC and 28V DC. This through-hole mounted component features a gold-plated copper contact system with an epoxy-sealed design, suitable for applications requiring reliable switching across the specified voltage and current ranges. Substitute parts are identified based on matching circuit topology, mounting configuration, and electrical parameter compatibility within defined operational limits.

Substiute Parts

1201M2S3CRE2

C&KIn Stock: 9211201M2S3CRE2 Datasheet

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CS22BNW03

NKK SwitchesIn Stock: 7259CS22BNW03 Datasheet

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SS22SDP2LC

NKK SwitchesIn Stock: 1029SS22SDP2LC Datasheet

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SS22SDP2LE

NKK SwitchesIn Stock: 773SS22SDP2LE Datasheet

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SS22SDP2LF

NKK SwitchesIn Stock: 814SS22SDP2LF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1201M2S3CRE2 are grouped based on the following substitution criteria:

Primary Compatibility Parameters:

• Circuit configuration: DPDT topology required
• Switch function: On-On operation
• Mounting type: Through hole with PC pin termination
• Contact material and finish compatibility
• Operating temperature range overlap
• RoHS3 compliance and regulatory alignment

Substitution Logic:

The identified substitute parts maintain DPDT circuit topology and through-hole mounting configuration. However, electrical parameter ranges vary significantly. The CS22BNW03 operates at reduced current (3A AC) and elevated voltage (125V AC), suitable for lower-power applications. The SS22SDP2LC, SS22SDP2LE, and SS22SDP2LF variants operate at substantially reduced current (100mA DC) and voltage (30V DC), with illuminated actuators and different contact timing characteristics (MBB shorting vs. the main part's non-specified timing). These variants are applicable only where application requirements align with their reduced electrical ratings.

Parameter Comparison

Engineering Selection Recommendations

All listed parts maintain active product status and ROHS3 compliance, ensuring regulatory alignment and supply continuity. Selection between the main part and substitutes depends on application electrical requirements:

For applications requiring 6A switching capacity at 120V AC: The 1201M2S3CRE2 remains the specified choice. No substitute provides equivalent current handling.

For applications tolerating reduced current (3A AC maximum) at 125V AC: The CS22BNW03 provides an alternative with extended operating temperature range (-30°C to 85°C) and higher mechanical life (50,000 cycles). Contact finish differs (silver vs. gold), affecting corrosion resistance characteristics in specific environments.

For low-power applications (100mA DC maximum) at 30V DC: The SS22SDP2LC, SS22SDP2LE, and SS22SDP2LF variants are applicable. These parts feature illuminated actuators and MBB contact timing (shorting configuration), differing from the main part's standard actuator and unspecified contact timing. Operating temperature range is narrower (-15°C to 60°C), and electrical life is reduced (10,000 cycles).

Frequently Asked Questions (FAQ)

Q: Can the CS22BNW03 directly replace the 1201M2S3CRE2 in a 6A circuit?

A: No. The CS22BNW03 is rated for 3A AC maximum, which is insufficient for applications requiring 6A switching capacity. Use only in circuits where load current does not exceed 3A.

Q: What is the primary difference between the SS22SDP2LC, SS22SDP2LE, and SS22SDP2LF variants?

A: These three parts are electrically and mechanically identical across all provided parameters. Differences, if any, exist in specifications not included in this reference and should be verified through manufacturer datasheets.

Q: Are the SS22SDP2 series parts suitable for high-current applications?

A: No. The SS22SDP2 series is rated for 100mA DC at 30V DC maximum. These parts are designed for low-power signal switching and are not suitable for applications exceeding these electrical limits.

Q: Does contact finish affect substitution compatibility?

A: Contact finish (gold vs. silver) influences corrosion resistance and contact resistance characteristics. Gold-plated contacts (1201M2S3CRE2) provide superior corrosion resistance in harsh environments. Silver-plated contacts (substitute parts) are suitable for standard industrial applications but may require additional protection in corrosive atmospheres.

Q: What does MBB (Make-Before-Break) contact timing mean?

A: MBB contact timing indicates that the new contact closes before the previous contact opens during switching transitions. This differs from BBM (Break-Before-Make) timing, where the previous contact opens before the new contact closes. Application requirements determine which timing is appropriate.

Q: Are all listed parts available in the same packaging format?

A: No. The 1201M2S3CRE2 is supplied in bulk packaging, while the CS22BNW03 is supplied in tray packaging. The SS22SDP2 series variants are supplied in bulk packaging. Packaging format may affect procurement and handling procedures.

Q: Do the substitute parts maintain the same actuator length as the main part?

A: No. The 1201M2S3CRE2 has a 5.08mm actuator length. The CS22BNW03 has a 5.10mm actuator length (minimal difference). The SS22SDP2 series has a 2.50mm actuator length (significantly shorter). Actuator length affects panel cutout design and may require mechanical redesign for substitution.