MS42R Equivalent & Substitute Parts

Part Overview

The MS42R is a slide switch manufactured by APEM Inc., configured as a 4PDT (four-pole double-throw) through-hole component with right-angle mounting. It is rated for 300mA DC at 6V and features a 2.00mm actuator length with silver contact finish. The MS42R operates across a temperature range of -10°C to 60°C with an electrical life of 10,000 cycles. This part is classified as obsolete, making identification of equivalent alternatives necessary for ongoing design support and procurement.

Substiute Parts

MS42R

APEM Inc.In Stock: 768MS42R Datasheet

Current PartRFQ

EG4208

E-SwitchIn Stock: 7470EG4208 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The EG4208 manufactured by E-Switch qualifies as a substitute for the MS42R based on the following alignment of critical parameters:

Matching Parameters:

• Circuit configuration: 4PDT
• Switch function: On-On
• Mounting type: Through Hole, Right Angle
• Termination style: PC Pin
• Contact finish: Silver
• Switch travel: 2.00mm
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)
• REACH status: REACH Unaffected

Differing Parameters: The EG4208 operates at higher voltage (30V DC versus 6V DC) and lower current (200mA versus 300mA). The actuator length is longer (4.00mm versus 2.00mm), and the operating temperature range is wider (-20°C to 70°C versus -10°C to 60°C). The EG4208 includes an operating force specification of 250gf and contact material of copper alloy.

Parameter Comparison

Engineering Selection Recommendations

The EG4208 is an active product from E-Switch and represents a viable alternative to the obsolete MS42R for applications requiring 4PDT slide switch functionality with through-hole, right-angle mounting. Both components maintain ROHS3 compliance and identical termination architecture.

Selection of the EG4208 is appropriate when the application circuit operates at voltages up to 30V DC and current requirements do not exceed 200mA. The EG4208's extended operating temperature range (-20°C to 70°C) provides broader environmental tolerance compared to the MS42R. The increased actuator length (4.00mm) must be evaluated against mechanical space constraints in the target application.

Applications originally designed for the MS42R's 300mA rating at 6V require current derating consideration if migrating to the EG4208. The EG4208's active product status ensures ongoing availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the EG4208 directly replace the MS42R in existing designs?

A: The EG4208 shares identical circuit configuration (4PDT), switch function (On-On), mounting type (through-hole right-angle), and termination style (PC pin). However, the EG4208 has a longer actuator (4.00mm versus 2.00mm), which may affect mechanical fit. Current capacity differs (200mA versus 300mA), requiring circuit evaluation if the original design approaches the MS42R's 300mA limit.

Q: What are the key differences in electrical ratings?

A: The MS42R is rated for 300mA at 6V DC. The EG4208 is rated for 200mA at 30V DC. The EG4208 supports higher voltage operation but lower current capacity. Applications must operate within the EG4208's specified electrical envelope.

Q: Are both components RoHS compliant?

A: Yes. Both the MS42R and EG4208 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the significance of the actuator length difference?

A: The MS42R features a 2.00mm actuator length, while the EG4208 has a 4.00mm actuator length. This difference affects the physical profile of the switch and may impact PCB layout and enclosure design. Mechanical clearance must be verified during substitution.

Q: Does the EG4208 provide electrical life specifications?

A: The EG4208 does not specify electrical life in cycles. The MS42R is rated for 10,000 cycles. Applications with defined cycle-life requirements should reference manufacturer datasheets for detailed performance data.

Q: What packaging is available for the EG4208?

A: The EG4208 is supplied in bulk packaging, whereas the MS42R packaging format is not specified in the available data.