FRB2S1030 Equivalent & Substitute Parts

Part Overview

The FRB2S1030 is a glass body reed switch manufactured by Coto Technology, featuring SPST-NO (Single Pole Single Throw - Normally Open) configuration with 500mA switching capacity at 200V. This component is classified as Obsolete in current product lines. Identifying suitable substitute parts is necessary to maintain design compatibility and ensure continued availability for manufacturing, repair, and field replacement applications where the original part is no longer obtainable.

Substiute Parts

FRB2S1030

Coto TechnologyIn Stock: 1089FRB2S1030 Datasheet

Current PartRFQ

CT10-1030-G4

Coto TechnologyIn Stock: 48211CT10-1030-G4 Datasheet

SimilarRFQ

KSK-1A46-1040

Standex-Meder ElectronicsIn Stock: 701KSK-1A46-1040 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the FRB2S1030 is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Requirements:

• Circuit configuration: SPST-NO (mandatory)
• Switching current: 500mA (AC/DC)
• Switching voltage: 200V (AC/DC)
• Operate range: 10 ~ 30AT or compatible overlap

Mechanical Compatibility Requirements:

• Mounting type: Surface Mount
• Body type: Glass body or equivalent sealed reed switch design
• Operating temperature range: -40°C minimum and 125°C maximum

Compliance Requirements:

• RoHS compliance status (RoHS Compliant or ROHS3 Compliant acceptable)
• REACH unaffected status

The two substitute parts identified meet the electrical parameter requirements with variations in physical form factor and rated power specifications that remain within acceptable operating margins for this component category.

Parameter Comparison

Engineering Selection Recommendations

CT10-1030-G4 (Coto Technology): This part maintains active product status and demonstrates ROHS3 compliance. It matches the FRB2S1030 in circuit configuration, switching current, operate range, and mounting type. The reduction in AC voltage rating (140V vs 200V) requires circuit-level verification in applications operating above 140V AC. DC switching voltage remains unchanged at 200V. The change from glass to molded body type represents a robust, modern construction approach. Inventory availability is significantly higher (48,148 units in stock).

KSK-1A46-1040 (Standex-Meder Electronics): This part maintains active product status and ROHS3 compliance with matching 200V AC/DC voltage ratings. It provides extended operate range (10 ~ 40AT vs 10 ~ 30AT) and slightly improved operating temperature ceiling (130°C vs 125°C). The mounting type transitions from surface mount to through-hole, which requires PCB redesign. The glass body design matches the original part type. This option is suitable for applications with available through-hole footprint space and lower volume availability (655 units in stock).

Frequently Asked Questions (FAQ)

Q: Can CT10-1030-G4 be used in applications rated for 200V AC? A: CT10-1030-G4 has a 140V AC switching voltage rating, which is below the 200V AC specification of the FRB2S1030. It is suitable only for applications operating at 140V AC or below. For 200V AC applications, use KSK-1A46-1040.

Q: What is the primary difference between glass body and molded body reed switches? A: Both are hermetically sealed switching devices. Molded body designs use plastic encapsulation around the glass reed tube, while glass body switches expose the glass envelope directly. Functionally, both types perform equivalent switching operations within their rated parameters.

Q: Can KSK-1A46-1040 be substituted in a surface mount PCB layout? A: No. KSK-1A46-1040 requires through-hole mounting, while FRB2S1030 and CT10-1030-G4 are surface mount devices. PCB redesign is necessary to accommodate the through-hole termination style.

Q: How do voltage rating differences affect substitution suitability? A: Switching voltage ratings define the maximum voltage at which the contact can safely switch current. Using a part with a lower rating in a higher-voltage application can result in contact erosion or failure. Voltage ratings must equal or exceed circuit requirements.

Q: Are both substitute parts RoHS compliant? A: Both CT10-1030-G4 and KSK-1A46-1040 carry ROHS3 compliance certification, which exceeds the RoHS Compliant status of the original FRB2S1030. Both are acceptable for RoHS-regulated applications.

Q: What does the operate range specification (10 ~ 30AT or 10 ~ 40AT) indicate? A: Operate range specifies the magnetic field strength (in Ampere-Turns, AT) required to reliably close the switch contacts. The range defines the minimum and maximum activating field. KSK-1A46-1040 accepts a broader operate range, providing greater magnetic sensitivity flexibility.