MSL66 Equivalent & Substitute Parts

Part Overview

The MSL66 is a slide switch manufactured by APEM Inc., configured as a single-pole six-throw (SP6T) through-hole component rated for 200mA at 125V AC and 30V DC. This switch features non-shorting contact timing, silver-plated contacts, and epoxy sealed terminals suitable for general-purpose switching applications. The product is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and component procurement.

Substiute Parts

MSL66

APEM Inc.In Stock: 823MSL66 Datasheet

Current PartRFQ

1825073-4

TE Connectivity ALCOSWITCH SwitchesIn Stock: 10121825073-4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MSL66 is determined by the following critical parameters:

Circuit Configuration: Both the main part and substitute must maintain SP6T topology to preserve switching functionality across all six positions.

Voltage Ratings: The substitute must meet or exceed the AC voltage requirement of 125V. DC voltage rating of the substitute (12V minimum) must support the application's DC operating conditions.

Current Rating: The substitute current capacity must equal or exceed 200mA to handle the intended load without derating.

Contact Timing: Non-shorting (BBM) contact timing must be maintained to prevent transient switching artifacts in sensitive circuits.

Mounting and Termination: Through-hole mounting with PC pin termination ensures mechanical and electrical compatibility with existing PCB designs.

Environmental Compliance: RoHS3 compliance status ensures regulatory alignment for new procurement.

The TE Connectivity ALCOSWITCH 1825073-4 meets these substitution criteria through equivalent SP6T configuration, matching voltage and current specifications, identical contact timing, and compatible mounting characteristics.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity ALCOSWITCH 1825073-4 serves as a functional substitute for the obsolete MSL66 under the following conditions:

AC Applications: The 1825073-4 is fully compatible for AC switching at 125V and 250mA, exceeding the MSL66 current specification.

DC Applications: Applications requiring DC operation must be evaluated against the 1825073-4's 12V DC rating. If the original design operates at 30V DC, the substitute is not suitable without circuit redesign.

Cycle Life Consideration: The 1825073-4 provides 6,000 electrical cycles compared to the MSL66's 10,000 cycles. Applications with high-cycle switching requirements should account for this reduced specification.

Availability: The 1825073-4 is classified as active product status, ensuring ongoing availability and supply chain continuity compared to the obsolete MSL66.

Regulatory Compliance: The MSL66 carries ROHS3 compliance certification. Verify the 1825073-4's compliance status against your specific regulatory requirements before final selection.

Frequently Asked Questions (FAQ)

Q: Can the 1825073-4 directly replace the MSL66 in all applications?

A: Direct replacement is possible for AC applications at 125V. DC applications must be verified against the 1825073-4's 12V DC maximum rating. If your circuit operates at the MSL66's 30V DC specification, the substitute requires circuit modification or alternative sourcing.

Q: What is the significance of the reduced electrical life specification in the 1825073-4?

A: The 1825073-4 is rated for 6,000 electrical cycles versus the MSL66's 10,000 cycles. For applications with continuous or frequent switching, this reduced cycle life may impact component replacement intervals. Evaluate your application's switching frequency to determine if this specification change is acceptable.

Q: Are the actuator length differences between these parts significant?

A: The actuator length difference of 0.20mm (MSL66 at 14.20mm versus 1825073-4 at 14.00mm) is functionally negligible for standard through-hole mounting. Verify clearance in your specific mechanical assembly if space constraints exist.

Q: What compliance certifications should I verify for the 1825073-4?

A: Confirm RoHS compliance status, REACH compliance status, and any industry-specific certifications required by your application. The MSL66 is ROHS3 compliant; verify equivalent compliance for the 1825073-4 before procurement.

Q: Is the operating force difference between these switches a concern?

A: The MSL66 specifies 250gf operating force, while the 1825073-4 ranges from 100 to 300gf. The 1825073-4's range encompasses the MSL66 specification, making it compatible from an actuation perspective. User experience may vary slightly due to the broader force range.