MITI-3V1-6-12.5 Equivalent & Substitute Parts

Part Overview

The MITI-3V1-6-12.5 is a glass body reed switch manufactured by Littelfuse Inc., configured as a SPST-NO (Single Pole Single Throw - Normally Open) contact arrangement. This through-hole mounted component is rated for 250mA DC switching at 170V DC with a 10W power rating and operates within the 6–12AT magnetic operate range. The product is currently obsolete, making equivalent substitute parts necessary for ongoing system maintenance, repair, and new design implementations where this switch type is specified.

Substiute Parts

MITI-3V1-6-12.5

Littelfuse Inc.In Stock: 1013MITI-3V1-6-12.5 Datasheet

Current PartRFQ

MITI-7-6-12.5

Littelfuse Inc.In Stock: 958MITI-7-6-12.5 Datasheet

DirectRFQ

RI-70GP0710

Comus InternationalIn Stock: 41859RI-70GP0710 Datasheet

DirectRFQ

KSK-1A80-1015

Standex-Meder ElectronicsIn Stock: 2104KSK-1A80-1015 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MITI-3V1-6-12.5 is determined by the following critical parameters:

• Circuit Configuration: Must be SPST-NO
• Mounting Type: Must be Through Hole with Axial termination
• Current Switching Capacity: Must support minimum 250mA DC
• Voltage Switching Capacity: Must support minimum 170V DC
• Power Rating: Must support minimum 10W
• Operating Temperature Range: Must encompass -40°C to 125°C
• RoHS Compliance: Must maintain ROHS3 Compliant status

The three substitute parts listed below meet these core electrical and mechanical requirements while offering active product status and continued manufacturer support.

Parameter Comparison

Engineering Selection Recommendations

MITI-7-6-12.5 (Littelfuse Inc.)

This substitute maintains identical electrical specifications for DC switching (250mA at 170V) and operates within the same 6–12AT magnetic range as the original part. It is manufactured by the same supplier, ensuring design continuity. The MITI-7-6-12.5 is active in production with ROHS3 compliance and REACH unaffected status. The primary design consideration is the reduced overall length (1.590" versus 1.811"), which may require PCB layout verification for through-hole spacing compatibility.

RI-70GP0710 (Comus International)

This substitute provides enhanced current switching capacity (500mA AC/DC) and maintains 170V DC switching voltage with 10W power rating. The operate range shifts to 7–10AT, which overlaps the upper portion of the original 6–12AT specification. The RI-70GP0710 offers extended operating temperature range (-55°C to 125°C) and faster switching response (0.15ms operate time, 0.03ms release time). Overall length matches the original part (1.811"), supporting direct mechanical substitution. Active product status with ROHS3 compliance and REACH unaffected certification.

KSK-1A80-1015 (Standex-Meder Electronics)

This substitute delivers 500mA AC/DC switching capacity at 170V with 10W power rating. The operate range is 10–15AT, representing a higher magnetic sensitivity threshold than the original specification. The KSK-1A80-1015 offers the widest operating temperature range (-40°C to 130°C) and shortest overall length (1.409"), enabling compact PCB integration. Active product status with ROHS3 compliance, REACH unaffected status, and MSL 1 rating. The higher operate range requires confirmation that the magnetic field strength in the application meets the 10–15AT threshold.

Frequently Asked Questions (FAQ)

Q: Can the MITI-7-6-12.5 be used as a direct replacement for the MITI-3V1-6-12.5?

A: The MITI-7-6-12.5 meets all electrical requirements (250mA DC at 170V, 10W, SPST-NO configuration, -40°C to 125°C operating range). The primary consideration is physical length: the MITI-7-6-12.5 is 1.590" compared to the original 1.811". Verify that PCB through-hole spacing and component clearances accommodate this 0.221" reduction before implementation.

Q: What is the difference between the RI-70GP0710 and KSK-1A80-1015 substitutes?

A: Both parts exceed the original current rating (500mA versus 250mA) and maintain 170V DC switching voltage. The key differences are operate range (RI-70GP0710: 7–10AT; KSK-1A80-1015: 10–15AT) and physical dimensions (RI-70GP0710: 1.811"; KSK-1A80-1015: 1.409"). Select based on the magnetic field strength available in your application and PCB space constraints.

Q: Are all substitute parts RoHS compliant?

A: Yes. All three substitute parts (MITI-7-6-12.5, RI-70GP0710, KSK-1A80-1015) are ROHS3 Compliant and carry REACH unaffected status where applicable, meeting current environmental and regulatory requirements.

Q: Does the operate range difference affect substitution suitability?

A: The operate range specifies the magnetic field strength (in Ampere-Turns) required to close the reed switch contacts. The original MITI-3V1-6-12.5 operates at 6–12AT. The MITI-7-6-12.5 maintains this range. The RI-70GP0710 (7–10AT) and KSK-1A80-1015 (10–15AT) have narrower or higher ranges. Substitution is valid only if the magnetic field strength in your application falls within the substitute part's operate range specification.

Q: Can these parts be used in AC applications?

A: The original MITI-3V1-6-12.5 is rated for DC switching only (250mA DC). The MITI-7-6-12.5 supports 180mA AC and 250mA DC. The RI-70GP0710 and KSK-1A80-1015 support 500mA AC/DC. If AC switching is required, the MITI-7-6-12.5, RI-70GP0710, or KSK-1A80-1015 are suitable; verify that AC current requirements do not exceed the rated values.

Q: What is the MSL (Moisture Sensitivity Level) rating?

A: The original MITI-3V1-6-12.5, RI-70GP0710, and KSK-1A80-1015 all carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling. The MITI-7-6-12.5 does not specify MSL in the provided data.