FR2282 Reed Switch Equivalent & Substitute Parts

Part Overview

The FR2282 is a glass body reed switch manufactured by Coto Technology, configured as a single-pole single-throw normally open (SPST-NO) device. This component operates at 500mA switching current with 200V AC/DC switching voltage and 10VA rated power. The FR2282 is classified as obsolete, necessitating identification of functionally equivalent substitute components for ongoing design requirements and production continuity.

Substiute Parts

FR2282

Coto TechnologyIn Stock: 1150FR2282 Datasheet

Current PartRFQ

CT10-1030-G4

Coto TechnologyIn Stock: 48211CT10-1030-G4 Datasheet

SimilarRFQ

MDSM-4R-12-18

Littelfuse Inc.In Stock: 10223MDSM-4R-12-18 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FR2282 are identified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Electrical Compatibility Requirements:

• Circuit configuration must be SPST-NO
• Switching current must support 500mA minimum (AC/DC)
• Switching voltage must support 200V DC operation
• Rated power must support 10VA minimum
• Operate range must encompass or be compatible with 10 ~ 30AT specification

Mechanical Compatibility Requirements:

• Mounting type must be Surface Mount
• Termination style must be Gull Wing
• Operating temperature range must include -40°C ~ 125°C
• Overall length and body dimensions must be compatible with existing PCB layouts

Compliance Requirements:

• RoHS3 compliance required
• MSL rating of 1 (Unlimited) required

Two substitute parts meet these criteria with specific operational trade-offs documented in the parameter comparison table.

Parameter Comparison

Engineering Selection Recommendations

CT10-1030-G4 (Coto Technology)

The CT10-1030-G4 is an active product offering direct electrical compatibility with the FR2282 across DC switching voltage (200V), switching current (500mA AC/DC), and operate range (10 ~ 30AT). This substitute maintains identical overall length (0.770") and shares the same gull wing termination. The primary design consideration is the reduced AC switching voltage specification (140V AC versus 200V AC on the main part), which applies only to AC applications. DC switching voltage remains at 200V, matching the FR2282 specification. The CT10-1030-G4 features a molded body construction compared to the glass body of the FR2282, with increased height above board (0.100" versus 0.080"). This substitute is ROHS3 compliant with MSL rating 1 and is available in Tape & Reel packaging.

MDSM-4R-12-18 (Littelfuse Inc.)

The MDSM-4R-12-18 is an active product from Littelfuse Inc. offering glass body reed switch construction matching the FR2282 type. This substitute supports 500mA DC switching current and 200V DC switching voltage, meeting DC application requirements. The AC switching current specification is reduced to 350mA (versus 500mA on the main part), and AC switching voltage is 140V. The operate range is narrower at 12 ~ 18AT compared to the FR2282 specification of 10 ~ 30AT. Overall length is 0.760" (compatible with 0.770" requirement), with increased height above board at 0.112". The MDSM-4R-12-18 is ROHS3 compliant with MSL rating 1 and is available in Tape & Reel packaging.

Both substitute parts satisfy RoHS3 compliance and MSL requirements. Selection between CT10-1030-G4 and MDSM-4R-12-18 depends on specific application voltage and current requirements, with CT10-1030-G4 providing broader operate range compatibility and MDSM-4R-12-18 offering glass body construction identical to the main part.

Frequently Asked Questions (FAQ)

Q: Can the CT10-1030-G4 directly replace the FR2282 in all applications?

A: The CT10-1030-G4 is electrically compatible for DC applications and AC applications up to 140V. If your application requires 200V AC switching, the CT10-1030-G4 AC voltage specification (140V) is below the FR2282 specification (200V). For DC applications, both parts support 200V switching voltage. Verify your application voltage requirements before selection.

Q: What is the difference between glass body and molded body reed switches?

A: The FR2282 uses glass body construction, while the CT10-1030-G4 uses molded body construction. Both are SPST-NO reed switches with identical electrical specifications for this application. The molded body design may offer different mechanical robustness characteristics. The MDSM-4R-12-18 maintains glass body construction matching the FR2282.

Q: Does the increased height above board affect PCB layout compatibility?

A: The FR2282 has a height above board of 0.080". The CT10-1030-G4 measures 0.100" and the MDSM-4R-12-18 measures 0.112". These differences may affect clearance in space-constrained applications. Verify PCB layout clearance specifications before substitution.

Q: Are both substitute parts available in the same packaging as the FR2282?

A: Both CT10-1030-G4 and MDSM-4R-12-18 are supplied in Tape & Reel (TR) packaging. The FR2282 packaging specification was not provided in the original documentation. Confirm packaging compatibility with your procurement and assembly requirements.

Q: What is the significance of the operate range difference in MDSM-4R-12-18?

A: The FR2282 operates at 10 ~ 30AT (ampere-turns), while the MDSM-4R-12-18 operates at 12 ~ 18AT. This narrower range means the MDSM-4R-12-18 requires a stronger magnetic field to activate. If your application uses a magnetic actuator calibrated for the 10 ~ 30AT range, the MDSM-4R-12-18 may not activate at the lower end of the FR2282 specification. The CT10-1030-G4 maintains the 10 ~ 30AT range, providing broader compatibility.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The FR2282, CT10-1030-G4, and MDSM-4R-12-18 are all ROHS3 compliant with MSL rating 1 (Unlimited), meeting current environmental and reliability standards.