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Evidence-backed decisions for obsolete industrial parts

Mitsubishi Electric · MELSERVO-J2S · Servo drive · MR-J2S 2.0kW servo amplifier

Mitsubishi Electric MR-J2S-200A

Discontinued

Analysis reviewed: September 12, 2026

What should replace this part?

The verified replacement is MR-J4-200A + HG-SR152 motor + kit SC-J2SJ4KT3K. This is a migration, not a drop-in swap.

Order the MR-J4-200A kit with its matching motor — the amplifier alone strands the axis

Your options

MR-J4-200A + motor kit (SC-J2SJ4KT3K)
The renewal mapping pairs amplifier MR-J4-200A with motor HG-SR152 or HG-SR202 in kit SC-J2SJ4KT3K; the RFS and UFS motor classes share the same amplifier and kit with their own motors. Read the motor nameplate first, because the motor class selects the replacement motor.
Repair or source a used 200A
The manufacturer repair window closed in August 2022, and no third-party repair or used channel is confirmed for this exact model. Treat any such offer as unverified until the seller proves the motor pairing.

What will need to change?

HardwareBoth the amplifier and the motor change (HC-SFS152/202 to HG-SR152/202, or the RFS/UFS equivalents). Check mounting dimensions against renewal kit SC-J2SJ4KT3K, which covers the 2kW and 3.5kW class.
WiringConversion cables come with the kit, and the existing encoder cable stays usable for some motor classes. Connector shape, pinout, and location differ, so check them before installation.
CommunicationsSSCNET gives way to SSCNET III/H. B-type axes need a conversion unit on top of the kit.
SoftwareMove the setup from MR Configurator to MR Configurator2, following its parameter conversion rules for the new amplifier and motor pair.

For anything not listed here, check the replacement manual against your existing configuration.

Need help confirming this replacement?

Send us the part number and current setup for MR-J2S-200A. We'll help determine whether you need a replacement, repair, original-stock sourcing, or a migration.

Request a replacement review

Can I still buy the original?

Repair — Not confirmed for this exact modelUsed — Not confirmed for this exact modelRefurbished — Not confirmed for this exact model

We did not verify current new-original stock for this exact part.

Lifecycle

Status: Discontinued

Discontinuation date: 2015-08 (repair to 2022-08)

Lifecycle source · us.mitsubishielectric.com

Technical evidence

The recommendation above is based on the sources listed here. OEM source means the manufacturer published it; third-party source means a distributor, repair company or reseller states it. Confidence reflects how directly those sources support the recommendation: High — directly supported by manufacturer documentation. Medium — supported by family-level, secondary, or otherwise less-direct evidence. Low — limited or indirect evidence; verify independently before ordering.

OEM / manufacturer sources

OEM source Confidence: High Mitsubishi Electric System and Service (renewal catalog x901307-312a)
The renewal table pairs the MR-J2S-200A with HC-SFS152(B) or HC-SFS202(B) motors to the MR-J4-200A in kit SC-J2SJ4KT3K with HG-SR152(B) or HG-SR202(B) motors.
Source excerpt“MR-J2S-200A HC-SFS152(B) MR-J4-200A SC-J2SJ4KT3K HG-SR152(B); HC-SFS202(B) HG-SR202(B)”
View source · Note: Renewal combination table. The 200A row spans two SFS motor pairings.
OEM source Confidence: Medium Mitsubishi Electric System and Service (renewal product list)
The renewal product list assigns kit SC-J2SJ4KT3K to MR-J4 amplifier capacity 2kW and 3.5kW for Type A replacements.
Source excerpt“SC-J2SJ4KT3K | MR-J4-A Servo Amplifier Capacity: for 2kW, 3.5kW”
View source
OEM source Confidence: Medium Mitsubishi Electric US (servo legacy page)
The J2S series ran from its 1999 introduction to its 2015 discontinuation, with repair service available until August 2022.
Source excerpt“Lifecycle: Introduced (1999) - Discontinued (2015) / Repair Service available until August 2022”
View source · Note: Series-level dates covering the 200A; the repair window has expired.
OEM source Confidence: Medium Mitsubishi Electric System and Service (renewal catalog x901307-312a)
The same 200A amplifier and kit cover the RFS ultra-low-inertia motors (HG-RR103/153) and the UFS flat-type motor (HG-UR152).
Source excerpt“MR-J2S-200A HC-RFS103(B) MR-J4-200A SC-J2SJ4KT3K HG-RR103(B); HC-UFS152(B) HG-UR152(B)”
View source · Note: The installed motor class selects the replacement motor, not the kit.

Limitation: The renewal table carries the 200A across several motor classes, so the motor on your axis decides the replacement motor. The lifecycle dates are series-level, and cable assignments follow the kit table — check both against the kit document before ordering.

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