Skip to main content
Log in
STMicroelectronics P0102BL 5AA4 — Analog & Data Acquisition

P0102BL 5AA4 SCR, Sensitive Gate 200 V 250 mA SOT-23-3

MPNP0102BL 5AA4
End of Life

Ween Semiconductors P0102BL 5AA4, Sensitive Gate SCR, 200 V off-state voltage, 250 mA RMS on-state current, 200 µA gate trigger, SOT-23-3 surface-mount package, -40°C to 125°C operating temperature.

$0.83Ref. price · indicative, final on quote
STMicroelectronics P0102BL 5AA4 datasheet (PDF)
PackagingTO-236-3, SC-59, SOT-23-3
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

P0102BL 5AA4 specifications
ParameterValue
SCR typeSensitive Gate
MountingSurface Mount
Voltage - off state200 V
Voltage - on state (Vtm)1.7 V
Voltage - gate trigger (Vgt)800 mV
Current - hold (Ih)5 mA
Current - off state1 µA
Current - gate trigger (Igt)200 µA
Current - on state (It (AV))160 mA
Current - on state (It (RMS))250 mA
Current - non rep. surge 50, 60Hz7A, 6A
Operating temperature-40°C ~ 125°C
PackageTape & Reel (TR); Cut Tape (CT)
CaseTO-236-3, SC-59, SOT-23-3

Product details

200 V sensitive-gate SCR in a SOT-23-3 — what it handles and where it fits

The Ween Semiconductors P0102BL 5AA4 is a sensitive-gate silicon controlled rectifier rated for 200 V off-state blocking and 250 mA RMS continuous on-state current. Its 200 µA maximum gate trigger current lets it switch directly from a logic-level output — no extra driver transistor needed.

Sensitive gate vs standard gate — why the trigger current matters

The P0102BL 5AA4's 200 µA maximum gate trigger current (Igt) allows direct drive from a logic-level output through a series resistor, saving a BOM line and board space.

Lifecycle and ordering

No end-of-life notice or successor part is recorded on this line.

Frequently asked questions

Is P0102BL 5AA4 suitable for 120V AC switching?

Yes. The 200 V off-state voltage gives adequate margin for 120 V AC RMS (170 V peak) resistive loads. For inductive loads, add a snubber network to limit dv/dt.

What is the difference between a sensitive gate and standard gate SCR?

A sensitive-gate SCR like this one triggers with a gate current of 200 µA maximum, compared to 5–10 mA for standard-gate types. That allows direct drive from a logic-level output without a buffer transistor, but the trade-off is slightly higher off-state leakage and greater sensitivity to noise on the gate line.

What is the typical application for the P0102BL 5AA4 SCR?

Typical uses include low-power AC/DC switching of solenoids, relays, small lamps, and heater elements where the load current stays under 250 mA RMS. The sensitive gate suits microcontroller-driven phase-control circuits in appliances, industrial controls, and telecom line cards.

What is the equivalent of P0102BL 5AA4?

No direct pin-compatible equivalent is recorded in the available cross-reference data. For a second-source evaluation, compare parts with the same SOT-23-3 package, 200 V off-state, 250 mA RMS rating, and sensitive-gate trigger current under 200 µA. Submit an RFQ if you need assistance identifying an alternate.