Best Alternatives to RL1206A390K

Package: 1206RUILONMOSFETs - SingleVaristor Voltage: 36V ~ 45VMax. Allowable Voltage (AC): 25VMax. Allowable Voltage (DC): 30VMax. Clamping Voltage: 99VMax. Energy (10/1000μs): 0.5J

RL1206A390K is a 1206 MOV for transient protection. Adjacent RUILON parts may fit mechanically but need voltage and clamp review.

AI replacement insight

Electrical riskmedium

Clamp and working voltage differ.

Package risklow

Kept candidates are 1206.

Firmware risklow

Passive protection part.

Sourcing riskmedium

No product URLs provided.

Can it be replaced directly?

No verified pin-compatible replacement is confirmed from the provided evidence.

Best replacement path

Review RL1206A470K first if higher clamp voltage is acceptable.

Main risk

MOV voltage class changes can either under-rate the part or reduce surge protection.

Recommended alternatives

2
RL1206A470K package
Needs validationmedium risk

RL1206A470K may fit 1206 pads but clamps higher than RL1206A390K.

View details

Alternative comparison matrix

Feature / factorRL1206A390KRL1206A470KRL1206A330KAlt 3Compatibility / risk
Package1206120612061206 — same EIA size; RL1206A330K: same EIA size
Pinout2-pin2-pin2-pin2-pin — pin count only; RL1206A330K: pin count only
Voltage99V clamp125V clamp85V clamp125V clamp / 85V clamp — less protection; RL1206A330K: lower clamp
Temperature-55 to 125Cmissingmissingmissing — not in ES key fields; RL1206A330K: not in ES key fields

Application & sourcing insights

Questions & answers

RL1206A470K is the closest kept candidate, but it clamps higher and needs FAE review.