MRJ112 Equivalent & Substitute Parts

Part Overview

The MRJ112 is a rotary switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a 2–12 position, single-pole, 12-throw (SP12T) selector with non-shorting (BBM) contact timing. The switch is rated for 0.4VA at 20 VAC/DC and features a panel-mount, through-hole design with a round slotted actuator (3.17mm diameter, 19.00mm length) and adjustable index stops at 30° throw angles.

The MRJ112 carries an obsolete product status. Locating equivalent or substitute components is necessary to support ongoing maintenance, repair, and replacement requirements for legacy systems and equipment utilizing this switch configuration.

Substiute Parts

MRJ112

TE Connectivity ALCOSWITCH SwitchesIn Stock: 819MRJ112 Datasheet

Current PartRFQ

MRJ11204

TE Connectivity ALCOSWITCH SwitchesIn Stock: 1781MRJ11204 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MRJ112 is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Parameters:

• Circuit configuration: SP12T (single pole, 12 throw)
• Current rating: 0.4VA (AC/DC)
• Voltage rating: 20 VAC and 20 VDC
• Contact timing: Non-shorting (BBM)
• Contact material and finish: Nickel with gold plating

Mechanical Parameters:

• Number of positions: 2–12 (adjustable index stops)
• Actuator type: Round (3.17mm diameter), slotted
• Actuator length: 19.00mm
• Angle of throw: 30°
• Mounting configuration: Panel mount, through-hole
• Termination style: PC pin
• Depth behind panel: 11.20mm

The MRJ11204 meets all specified electrical and mechanical parameters and is therefore classified as a direct substitute for the MRJ112.

Parameter Comparison

Engineering Selection Recommendations

MRJ11204 as Primary Substitute:

The MRJ11204 is the direct equivalent substitute for the MRJ112. All electrical parameters (voltage, current, contact timing, and circuit configuration) are identical. All mechanical parameters (actuator dimensions, mounting configuration, termination style, and panel depth) are identical. Both components are manufactured by TE Connectivity ALCOSWITCH Switches within the MRJ series.

The MRJ11204 carries an active product status, whereas the MRJ112 is obsolete. This status difference makes the MRJ11204 the appropriate selection for new designs, repairs, and replacements requiring long-term component availability.

Compliance Considerations:

The MRJ112 is RoHS non-compliant and REACH unaffected. The MRJ11204 is RoHS non-compliant and REACH affected. Both components carry the same ECCN classification (EAR99). When compliance requirements are specified for a given application or region, the regulatory status of the MRJ11204 must be evaluated against those requirements.

Packaging:

The MRJ112 is supplied in standard packaging. The MRJ11204 is supplied in bulk packaging. Packaging format does not affect electrical or mechanical compatibility; however, procurement and inventory management processes may differ based on packaging configuration.

Frequently Asked Questions (FAQ)

Q: Can the MRJ11204 directly replace the MRJ112 in existing equipment?

A: Yes. The MRJ11204 is electrically and mechanically equivalent to the MRJ112. All parameters—including voltage rating, current rating, circuit configuration, actuator dimensions, mounting type, and termination style—are identical. Direct substitution is supported without circuit or mechanical redesign.

Q: What is the difference between the MRJ112 and MRJ11204?

A: The primary differences are product status and compliance classification. The MRJ112 is obsolete; the MRJ11204 is active. The MRJ11204 is REACH affected, whereas the MRJ112 is REACH unaffected. Both components are electrically and mechanically identical and belong to the same MRJ series manufactured by TE Connectivity ALCOSWITCH Switches.

Q: Are there any actuator or mounting differences between these parts?

A: No. Both the MRJ112 and MRJ11204 feature identical round slotted actuators (3.17mm diameter, 19.00mm length), identical 30° throw angles, and identical panel-mount through-hole configurations with 11.20mm depth behind panel.

Q: Does packaging format affect compatibility?

A: No. The MRJ112 and MRJ11204 differ only in packaging format (standard versus bulk). Packaging does not affect electrical performance, mechanical fit, or functional operation. Component selection should be based on electrical and mechanical parameters, not packaging configuration.

Q: What voltage and current ratings apply to both parts?

A: Both the MRJ112 and MRJ11204 are rated for 0.4VA at 20 VAC and 20 VDC. These ratings apply identically to both components and determine the maximum electrical load each switch can safely handle.

Q: Are both parts suitable for panel-mount applications?

A: Yes. Both the MRJ112 and MRJ11204 are designed for panel-mount, through-hole installation. Both feature PC pin termination and epoxy sealed terminals. Mechanical installation procedures are identical.

Q: What is the contact timing specification, and does it differ between these parts?

A: Both parts feature non-shorting (BBM) contact timing. This specification is identical for the MRJ112 and MRJ11204 and indicates that the switch does not create momentary short circuits during position transitions.