SW GR501/15-20 AT Glass Body Reed Switch Equivalent & Substitute Parts

Part Overview

The SW GR501/15-20 AT is a glass body reed switch manufactured by Standex-Meder Electronics, configured as a SPST-NO (Single Pole Single Throw - Normally Open) contact arrangement. This through-hole mounted component operates at 500mA switching current with 200V AC/DC voltage rating and 10W power capacity. The device is classified as obsolete product status, necessitating identification of active equivalent alternatives to maintain supply chain continuity and support ongoing production requirements.

Substiute Parts

SW GR501/15-20 AT

Standex-Meder ElectronicsIn Stock: 950SW GR501/15-20 AT Datasheet

Current PartRFQ

SW GP501/15-20 AT

Standex-Meder ElectronicsIn Stock: 1238SW GP501/15-20 AT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SW GR501/15-20 AT is based on electrical and mechanical parameter equivalence within the glass body reed switch category. The substitute part SW GP501/15-20 AT maintains identical specifications across all critical switching parameters: SPST-NO circuit configuration, 500mA switching current capacity, 200V AC/DC voltage rating, 10W power rating, and identical operate/release time characteristics. Mechanical compatibility is preserved through matching through-hole mounting type, axial termination style, overall length of 54.00mm, and body dimensions of 2.30mm diameter by 12.70mm length. Operating temperature range, capacitance, carry current, and environmental compliance parameters are identical between the main part and substitute.

The substitution logic is based on the following key parameters:

• Circuit Configuration: SPST-NO
• Current - Switching: 500mA (AC/DC)
• Voltage - Switching: 200V (AC/DC)
• Power - Rated: 10W
• Mounting Type: Through Hole
• Termination Style: Axial
• Physical Dimensions: 54.00mm length, 2.30mm diameter body
• Operating Temperature: -40°C ~ 125°C
• Operate/Release Time: 0.5ms / 0.1ms

Parameter Comparison

Engineering Selection Recommendations

The SW GP501/15-20 AT serves as the direct equivalent substitute for the obsolete SW GR501/15-20 AT. Both components are manufactured by Standex-Meder Electronics and share identical electrical and mechanical specifications across all switching parameters, physical dimensions, and environmental operating conditions.

The primary distinction between the main part and substitute is product status: the GR501 series is classified as obsolete, while the GP501 series maintains active product status. The GP501/15-20 AT additionally carries ROHS3 compliance certification, providing enhanced environmental regulatory alignment for new designs and production continuity.

Selection of the SW GP501/15-20 AT is appropriate for applications requiring:

• SPST-NO reed switch functionality with 500mA switching capacity
• 200V AC/DC voltage operation
• 10W power rating
• Through-hole mounting with axial termination
• Operating temperature range of -40°C to 125°C
• Compliance with current environmental regulations

The substitute part maintains full functional and mechanical compatibility with existing PCB layouts and circuit designs utilizing the GR501/15-20 AT.

Frequently Asked Questions (FAQ)

Q: Can the SW GP501/15-20 AT directly replace the SW GR501/15-20 AT in existing designs?

A: Yes. The GP501/15-20 AT is a direct equivalent substitute. All electrical parameters (switching current, voltage rating, power capacity, operate/release times), mechanical dimensions (length, body diameter), mounting type (through-hole), and termination style (axial) are identical. PCB layouts and circuit designs require no modification.

Q: What is the primary reason for substitution?

A: The SW GR501/15-20 AT is classified as obsolete product status. The SW GP501/15-20 AT is the active equivalent from the same manufacturer, ensuring continued supply chain availability and production support.

Q: Are there packaging differences between the main part and substitute?

A: The main part (GR501/15-20 AT) is specified with packaging designation "-" (not specified). The substitute part (GP501/15-20 AT) is supplied in Bulk packaging. Both components are identical in physical form factor and mounting characteristics.

Q: Does the substitute part have additional compliance certifications?

A: Yes. The SW GP501/15-20 AT carries ROHS3 compliance certification, while the main part does not specify RoHS status. Both parts maintain REACH Unaffected status and EAR99 export classification.

Q: Are the switching characteristics identical between the two parts?

A: Yes. Both parts operate with identical specifications: 7~30 AT operate range, 4~9 AT release range, 0.5ms operate time, and 0.1ms release time. Switching current capacity is 500mA AC/DC, and voltage rating is 200V AC/DC in both configurations.

Q: What is the operating temperature range for the substitute part?

A: The SW GP501/15-20 AT operates across -40°C to 125°C, identical to the main part. This range supports applications in industrial, automotive, and temperature-variable environments.

Q: Are there any electrical parameter differences that would affect circuit performance?

A: No. All electrical parameters are identical: 10W power rating, 1A carry current, 0.3pF capacitance, and 200V AC/DC switching voltage. The substitute part will perform identically in the same circuit configuration.