MDSR-10-10-15 Equivalent & Substitute Parts

Part Overview

The MDSR-10-10-15 is a glass body reed switch manufactured by Littelfuse, configured as a single-pole single-throw normally open (SPST-NO) device. This component is designed for low-power switching applications requiring reliable contact closure in response to magnetic fields. The part is currently in active production status with 3,997 units in stock. Alternative equivalent parts may be required due to supply chain considerations, packaging preferences, or specific application constraints.

Substiute Parts

MDSR-10-10-15

LittelfuseIn Stock: 4017MDSR-10-10-15 Datasheet

Current PartRFQ

ORD 324/10-15 AT

Standex-Meder ElectronicsIn Stock: 17699ORD 324/10-15 AT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MDSR-10-10-15 is determined by the following critical parameters:

• Circuit configuration must remain SPST-NO
• Operate range must be 10 ~ 15 AT
• DC switching voltage must be 200 V or greater
• DC switching current must be 500 mA or greater
• Mounting type must be Through Hole with Axial termination
• Operating temperature range must encompass -40°C ~ 125°C
• RoHS3 compliance must be maintained

The ORD 324/10-15 AT from Standex-Meder Electronics meets all substitution criteria. Both parts share identical circuit configuration, operate range, DC voltage rating, power rating, mounting type, temperature range, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the MDSR-10-10-15 and ORD 324/10-15 AT are active production components with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

• Packaging format availability (MDSR-10-10-15 supplied in Box; ORD 324/10-15 AT supplied in Bulk)
• Physical dimensions and PCB layout constraints (ORD variant is 0.154" longer overall)
• Switching speed requirements (ORD variant offers faster operate and release times)
• Inventory lead times and supply chain logistics

Both parts satisfy identical electrical and mechanical substitution criteria for applications requiring SPST-NO reed switch functionality within the specified parameter envelope.

Frequently Asked Questions (FAQ)

Q: Can the ORD 324/10-15 AT directly replace the MDSR-10-10-15 in existing designs?

A: Yes, provided the PCB layout accommodates the 0.154" length difference (ORD is longer). Both parts share identical electrical ratings, circuit configuration, and compliance certifications.

Q: What is the significance of the 10 ~ 15 AT operate range?

A: This specification defines the magnetic field strength (in Ampere-Turns) required to actuate the reed switch contacts. Both parts operate within this identical range, ensuring functional compatibility.

Q: Are there differences in switching speed between these parts?

A: The ORD 324/10-15 AT exhibits faster switching characteristics (0.4 ms operate time vs. 0.5 ms, and 0.05 ms release time vs. 0.1 ms). Applications with strict timing requirements should account for these differences.

Q: What packaging considerations apply to these substitutes?

A: The MDSR-10-10-15 is packaged in Box format, while the ORD 324/10-15 AT is supplied in Bulk. Procurement and handling procedures may differ accordingly.

Q: Do both parts meet current environmental and compliance standards?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.