MHS233K Equivalent & Substitute Parts

Part Overview

The MHS233K is a slide switch manufactured by APEM Inc., classified as a DP3T (Double Pole, Three Throw) configuration with a 300mA current rating and 30V DC voltage rating. This through-hole mounted switch features a baton actuator and is designed for On-On-On switching applications. The product is currently listed as obsolete, making identification of compatible substitute parts essential for ongoing design support and component procurement.

Substiute Parts

MHS233K

APEM Inc.In Stock: 1165MHS233K Datasheet

Current PartRFQ

1-1825289-0

TE Connectivity ALCOSWITCH SwitchesIn Stock: 7771-1825289-0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 1-1825289-0 (TE Connectivity ALCOSWITCH Switches) qualifies as a direct equivalent based on the following critical parameters:

Matching Parameters:

• Circuit configuration: DP3T
• Switch function: On-On-On
• Current rating: 300mA
• Actuator type: Baton
• Actuator length: 10.00mm
• Mounting type: Through Hole
• Termination style: PC Pin
• Operating temperature range: -20°C to 85°C
• Contact finish: Silver
• Epoxy sealed terminals feature

Allowable Variations:

• Voltage rating: 1-1825289-0 is rated for 125V AC, exceeding the 30V DC requirement of MHS233K. Higher voltage ratings are acceptable for lower-voltage applications.
• Contact material: Copper alloy versus brass represents a material substitution within acceptable electrical performance parameters.
• Operating force: 600gf versus 250gf represents a mechanical variation that does not affect electrical function.
• Mechanical and electrical life ratings: 15,000 cycles versus unspecified values represent improved performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 1-1825289-0 is suitable as a direct substitute for the obsolete MHS233K based on functional equivalence and regulatory compliance. Both parts maintain ROHS3 compliance and EAR99 export classification. The substitute part carries active product status, ensuring continued availability and manufacturer support.

The voltage rating differential (125V AC versus 30V DC) does not present a constraint, as the substitute accommodates the original application voltage requirement. The improved electrical life rating (15,000 cycles versus 10,000 cycles) represents enhanced performance characteristics suitable for the same operational context.

Frequently Asked Questions (FAQ)

Q: Can the 1-1825289-0 directly replace the MHS233K in existing designs?

A: Yes. Both parts share identical circuit configuration (DP3T), switch function (On-On-On), current rating (300mA), actuator geometry (10mm baton), and mounting characteristics (through-hole PC pin). The higher voltage rating of the substitute does not restrict its use in 30V DC applications.

Q: What is the significance of the voltage rating difference?

A: The MHS233K is rated for 30V DC operation, while the 1-1825289-0 is rated for 125V AC. A component rated for higher voltage can safely operate at lower voltages. This represents a conservative design margin and does not affect compatibility.

Q: Are there mechanical compatibility concerns?

A: No. Both switches feature identical actuator length (10.00mm), baton type, and through-hole mounting with PC pin termination. Physical and electrical interface compatibility is maintained.

Q: How do the contact materials differ, and does this affect performance?

A: The MHS233K uses brass contacts while the 1-1825289-0 uses copper alloy contacts. Both materials are silver-finished and suitable for the specified current and voltage ratings. This material substitution does not degrade electrical performance.

Q: What is the advantage of selecting the active product over the obsolete part?

A: The 1-1825289-0 carries active product status, ensuring ongoing manufacturer support, continued availability, and access to technical documentation. The obsolete MHS233K faces supply constraints and limited support resources.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the MHS233K and 1-1825289-0 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.