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STMicroelectronics Z0107SN 5AA4 — Discrete Semiconductors

STMicroelectronics Z0107SN 5AA4 Triac

MPNZ0107SN 5AA4
Active

STMicroelectronics Z0107 series, TRIAC, Logic - Sensitive Gate, Single, 700 V Off-State, 1 A RMS On-State, SOT-223 Surface Mount, -40°C to 125°C.

$0.7600Ref. price · indicative, final on quote
STMicroelectronics Z0107SN 5AA4 datasheet (PDF)
PackagingTO-261-4, TO-261AA
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

Z0107SN 5AA4 specifications
ParameterValue
Triac typeLogic - Sensitive Gate
MountingSurface Mount
Voltage - off state700 V
Voltage - gate trigger (Vgt)1.3 V
Current - hold (Ih)10 mA
Current - gate trigger (Igt)5 mA
Current - on state (It (RMS))1 A
Current - non rep. surge 50, 60Hz8A, 8.5A
Operating temperature-40°C~125°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
ConfigurationSingle
CaseTO-261-4, TO-261AA

Product details

The STMicroelectronics Z0107SN 5AA4 is a logic-level sensitive-gate triac rated for 700 V off-state and 1 A RMS on-state current, housed in a surface-mount SOT-223 package. It is designed for low-power AC switching applications where a microcontroller or logic gate drives the gate directly — the 5 mA maximum gate trigger current keeps the drive circuit simple, no extra transistor stage needed. Typical uses include solid-state relays, small motor controls, lighting dimmers, and valve actuators in industrial and appliance environments.

The Z0107 base number is a long-running ST product, so supply continuity is solid.

Frequently asked questions

What is the gate trigger current of Z0107SN 5AA4?

The maximum gate trigger current (Igt) is 5 mA, making it a logic-level sensitive-gate triac suitable for direct drive from a microcontroller GPIO pin.

What is the difference between Z0107SN and Z0107MN?

The Z0107SN uses a surface-mount SOT-223 package, while the Z0107MN uses a through-hole TO-92 package. Electrically they share the same 700 V / 1 A / 5 mA Igt ratings, so the choice is purely footprint and assembly method.

Can I replace Z0107SN 5AA4 with a different part number?

The closest functional peer is the Z0109NN 5AA4, which is also a logic-level sensitive-gate triac in SOT-223 but rated for 800 V off-state. It is a drop-in replacement with higher voltage headroom. The ACS108-8SN-TR is another alternative in the same package with 800 V / 0.8 A ratings, but the lower current capacity may limit your load.