MRJ3404 Equivalent & Substitute Parts

Part Overview

The MRJ3404 is a rotary switch manufactured by TE Connectivity ALCOSWITCH Switches, configured as a 2–4 position, 3-pole, 4-throw (3P4T) switch rated for 0.4VA at 20V AC/DC. The switch features panel mount, through-hole termination with a round 3.17mm diameter actuator and 30° angle of throw. This product is classified as obsolete, making identification of equivalent and substitute components necessary for ongoing system support and procurement planning.

Key Parameters

Parameter	Value
Manufacturer	TE Connectivity ALCOSWITCH Switches
Series	MRJ
Number of Positions	2–4
Number of Poles per Deck	3
Circuit Configuration	3P4T
Current Rating	0.4VA (AC/DC)
Voltage Rating (AC)	20V
Voltage Rating (DC)	20V
Actuator Type	Round (3.17mm Dia)
Angle of Throw	30°
Mounting Type	Panel Mount, Through Hole
Termination Style	PC Pin
Product Status	Obsolete

Substitute Part Grouping Explanation

The MRJ3404 is substituted by the MRJE3404 based on the following electrical and mechanical compatibility criteria:

Matching Parameters:

Identical circuit configuration (3P4T)
Identical current rating (0.4VA AC/DC)
Identical voltage ratings (20V AC and 20V DC)
Identical actuator type (Round 3.17mm diameter)
Identical angle of throw (30°)
Identical mounting type (Panel Mount, Through Hole)
Identical termination style (PC Pin)
Same manufacturer series (MRJ family)

Functional Difference: The MRJE3404 is fixed at 4 positions, whereas the MRJ3404 supports 2–4 positions. The MRJE3404 represents the active production equivalent within the MRJ rotary switch family and maintains full electrical and mechanical compatibility for applications requiring the 4-position configuration.

Parameter Comparison

Parameter	MRJ3404	MRJE3404
Manufacturer	TE Connectivity ALCOSWITCH Switches	TE Connectivity ALCOSWITCH Switches
Series	MRJ	MRJ
Number of Positions	2–4	4
Number of Poles per Deck	3	3
Circuit Configuration	3P4T	3P4T
Current Rating (VA)	0.4 (AC/DC)	0.4 (AC/DC)
Voltage Rating (AC)	20V	20V
Voltage Rating (DC)	20V	20V
Actuator Type	Round (3.17mm Dia)	Round (3.17mm Dia), Slotted
Angle of Throw	30°	30°
Mounting Type	Panel Mount, Through Hole	Panel Mount, Through Hole
Termination Style	PC Pin	PC Pin
Contact Timing	Not specified	Non-Shorting (BBM)
Contact Material	Not specified	Nickel
Contact Finish	Not specified	Gold
Product Status	Obsolete	Active
RoHS Status	Not applicable	RoHS non-compliant
REACH Status	Vendor Undefined	REACH Affected

Engineering Selection Recommendations

The MRJE3404 is the active production substitute for the obsolete MRJ3404. Selection of the MRJE3404 is appropriate for applications requiring a 4-position rotary switch with 3P4T configuration and 0.4VA rating at 20V.

Compliance Considerations: The MRJE3404 is RoHS non-compliant and REACH-affected. Organizations subject to RoHS or REACH regulations must evaluate whether this substitute meets their compliance requirements. The MRJ3404 status as "Not applicable" for RoHS reflects its obsolete classification and does not indicate compliance status.

Product Status Impact: The transition from the obsolete MRJ3404 to the active MRJE3404 ensures access to current manufacturing, quality assurance, and supply chain support. The MRJE3404 includes enhanced specifications including non-shorting contact timing (BBM), nickel contact material with gold finish, and epoxy-sealed terminals, providing improved reliability over the original design.

Frequently Asked Questions (FAQ)

Q: Can the MRJE3404 directly replace the MRJ3404 in existing designs?

A: The MRJE3404 is electrically and mechanically compatible with the MRJ3404 for applications requiring a 4-position switch. Both parts share identical voltage ratings (20V AC/DC), current rating (0.4VA), circuit configuration (3P4T), actuator type (3.17mm round), mounting type (panel mount, through hole), and termination style (PC pin). The primary difference is that the MRJ3404 supports 2–4 positions, while the MRJE3404 is fixed at 4 positions.

Q: What is the difference between the MRJ3404 and MRJE3404?

A: The MRJ3404 is an obsolete product with variable position capability (2–4 positions). The MRJE3404 is the active production equivalent, fixed at 4 positions, with enhanced specifications including non-shorting contact timing (BBM), nickel contacts with gold finish, and epoxy-sealed terminals. All electrical and mechanical parameters remain identical.

Q: Are there packaging differences between these parts?

A: The MRJ3404 packaging is listed as "-" (not specified). The MRJE3404 is supplied in bulk packaging. Confirm packaging requirements with your procurement process.

Q: Does the MRJE3404 meet RoHS or REACH requirements?

A: The MRJE3404 is RoHS non-compliant and REACH-affected. If your application requires RoHS or REACH compliance, evaluate alternative suppliers or product lines that meet these standards.

Q: What is the actuator length of the MRJE3404?

A: The MRJE3404 has an actuator length of 19.00mm with a slotted design. The MRJ3404 actuator length is not specified in available documentation.

Q: What is the depth behind panel for the MRJE3404?

A: The MRJE3404 has a depth behind panel of 8.13mm. This specification is not provided for the MRJ3404.

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