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STMicroelectronics TYN640RG — Discrete Semiconductors

STMicroelectronics TYN640RG SCR, 600V 40A TO-220, Active

MPNTYN640RG
Active

STMicroelectronics TYN640RG, Standard Recovery SCR, 600 V Off State, 40 A RMS On State, 460 A / 480 A Surge, TO-220-3, Through Hole, -40°C to 125°C.

$3.5300Ref. price · indicative, final on quote
STMicroelectronics TYN640RG datasheet (PDF)
PackagingTO-220-3
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TYN640RG specifications
ParameterValue
SCR typeStandard Recovery
MountingThrough Hole
Voltage - off state600 V
Voltage - on state (Vtm)1.6 V
Voltage - gate trigger (Vgt)1.3 V
Current - hold (Ih)75 mA
Current - off state5 µA
Current - gate trigger (Igt)35 mA
Current - on state (It (AV))25 A
Current - on state (It (RMS))40 A
Current - non rep. surge 50, 60Hz460A, 480A
Operating temperature-40°C ~ 125°C
PackageTube
CaseTO-220-3

Product details

Gate trigger current is 35 mA max, gate trigger voltage 1.3 V max. That is a standard drive level — most optocoupler or pulse-transformer gate drivers will fire it cleanly. Holding current is 75 mA max, which means the SCR stays latched once triggered as long as the load current stays above roughly 75 mA. Below that, it drops out. For resistive loads that pull a few amps, no issue; for a lightly loaded phase-control leg, check your minimum load current against that 75 mA threshold.

ROHS3 compliant, so it passes current European and Asian material restrictions.

Frequently asked questions

Is TYN640RG RoHS compliant?

Yes, the TYN640RG is ROHS3 compliant, meeting the latest European RoHS directive requirements.

What is the difference between TYN640 and TYN640RG?

The TYN640 and TYN640RG share the same die and electrical ratings. The RG suffix indicates a tape-and-reel packaging format; the base TYN640 typically ships in tube. Both are electrically identical.

What is the closest pin-compatible alternative to TYN640RG?

The TYN640RG is a standard TO-220 SCR with a 600 V / 40 A rating. Pin-compatible parts from other manufacturers include the 2N6504 series (same TO-220 footprint, similar ratings), but verify gate trigger and holding current thresholds for your specific circuit.