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STMicroelectronics BTA16-600BWRG — Discrete Semiconductors

ST BTA16-600BWRG Triac Alternistor, 600 V, 16 A, Snubberless

MPNBTA16-600BWRG
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STMicroelectronics Snubberless™ Series, BTA16-600BWRG, Alternistor - Snubberless Triac, Single, 600 V Off State, 16 A RMS, Through Hole, TO-220-3, -40°C ~ 125°C.

$1.9400Ref. price · indicative, final on quote
PackagingTO-220-3
RoHSROHS3 Compliant
SeriesSnubberless™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BTA16-600BWRG specifications
ParameterValue
SeriesSnubberless™
Triac typeAlternistor - Snubberless
MountingThrough Hole
Voltage - off state600 V
Voltage - gate trigger (Vgt)1.3 V
Current - hold (Ih)50 mA
Current - gate trigger (Igt)50 mA
Current - on state (It (RMS))16 A
Current - non rep. surge 50, 60Hz160A, 168A
Operating temperature-40°C ~ 125°C (TJ)
PackageTube
ConfigurationSingle
CaseTO-220-3

Product details

600 V, 16 A Snubberless Alternistor — TO-220

The Snubberless construction means the device can handle high commutation dV/dt without an external RC snubber network, simplifying the BOM in inductive-load switching like motor starters, solenoid drivers, and heating elements.

Gate drive and holding current — what the thresholds mean for your driver

Maximum gate trigger current (Igt) is 50 mA and maximum gate trigger voltage (Vgt) is 1.3 V — values that are compatible with standard microcontroller GPIOs through a series resistor or a low-cost optotriac driver. The 50 mA maximum holding current (Ih) ensures the device latches on once triggered and does not drop out on a lightly loaded half-cycle; this matters for low-current loads like small fans or relay coils where the load current dips near the zero crossing.

Surge current and junction temperature envelope

Non-repetitive surge current (ITSM) is rated at 160 A for 50 Hz and 168 A for 60 Hz — the peak current the die can absorb during a fault or inrush event without failing.

Frequently asked questions

Is BTA16-600BWRG snubberless?

Yes — the BTA16-600BWRG is a Snubberless™ Alternistor triac. Snubberless construction allows it to handle high commutation dV/dt without an external RC snubber, reducing BOM count and board space in inductive-load switching.

When sourcing BTA16-600BWRG, what's the closest functional second-source?

The BTA16-600CWRG is a direct peer in the same Snubberless™ series with identical 600 V off-state and 16 A RMS ratings, same TO-220 package, and same temperature range. The 'C' vs 'B' suffix typically indicates a different gate sensitivity or commutation grade; confirm the gate trigger specifications match your driver circuit before substituting.