STMicroelectronics TS1220-600H

Overview

TS1220-600H from STMicroelectronics is a sensitive 12 A, 600 V silicon-controlled rectifier (SCR) in IPAK (TO-251) package, designed for low-gate-current triggering (IGT ≤ 200 µA) and high dV/dt immunity (≥5 V/µs). It delivers 12 A RMS on-state current at Tc = 105 °C and supports capacitive discharge ignition, motor control, and battery charger regulator driver applications.

For engineers reviewing the TS1220-600H datasheet, TS1220-600H pinout, TS1220-600H application, or TS1220-600H equivalent, key selection factors include gate sensitivity (200 µA), junction-to-case thermal resistance (1.3 °C/W), holding current (≤5 mA), and ECOPACK®2 compliance for environmentally constrained designs.

Technical Context

The TS1220-600H operates as a unidirectional thyristor with sensitive gate triggering optimized for direct microcontroller GPIO drive without external amplification. Its 200 µA IGT and 0.8 V VGT enable compatibility with low-power logic outputs, while its 5 V/µs minimum dV/dt rating ensures robust noise immunity in inductive switching environments.

Thermal performance is defined by Rth(j-c) = 1.3 °C/W (IPAK), supporting 12 A RMS conduction at 105 °C case temperature. The device features a low on-state voltage (1.6 V max at 24 A) and dynamic resistance (≤30 mΩ), minimizing conduction losses in power tool motor drives and gas ignitor circuits.

Key Specifications

Pinout & Package

TS1220-600H uses the IPAK (TO-251) surface-mount package with three terminals: Anode (A), Cathode (K), and Gate (G). The package features a single exposed tab (Anode-connected) for thermal and electrical mounting, compatible with standard PCB footprint per ST's mechanical drawing (DocID027645 Rev 2, Fig. 16).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar SCR switching applications.

Compared with ST1220-600B and BT138-600, TS1220-600H uniquely combines IPAK's thermal efficiency (1.3 °C/W), ultra-low 200 µA gate drive, and ECOPACK®2 compliance-making it optimal for new-generation compact, low-power, and environmentally certified motor and ignition systems.

Availability

TS1220-600H is available at Aetrix Electronics and suitable for capacitive ignition systems, power tool motor controllers, gas ignitors, and battery charger regulator drivers requiring stable component supply across industrial production cycles.

Supply support for TS1220-600H includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs, discrete devices, and MEMS sensors for automotive, industrial, and consumer markets.

The TS1220 series belongs to ST's high-sensitivity SCR product line, engineered specifically for direct logic-level gate drive in compact, thermally constrained power control applications such as small appliance motor drives and ignition systems.

FAQ

What is the maximum junction temperature for continuous operation?

The TS1220-600H has an operating junction temperature range of –40 °C to +125 °C. Continuous conduction at rated 12 A RMS requires case temperature ≤105 °C, verified by thermal design using Rth(j-c) = 1.3 °C/W and appropriate heatsinking per ST's application note AN4409.

Can TS1220-600H be driven directly by a 3.3 V microcontroller GPIO?

Yes. With IGT ≤ 200 µA and VGT ≤ 0.8 V, the TS1220-600H can be triggered reliably using a 3.3 V GPIO through a series resistor (e.g., 10 kΩ) without external amplification, provided gate-cathode capacitance and layout minimize noise coupling.

Is heatsinking required for 12 A RMS operation?

Yes. At 12 A RMS and Tc = 105 °C, the device dissipates ~12–15 W. The IPAK package's Rth(j-c) = 1.3 °C/W mandates a heatsink capable of maintaining case temperature ≤105 °C; typical designs use ≥10 cm² copper pour or bolted aluminum heatsink per ST's thermal guidelines.

Does TS1220-600H support bidirectional current flow?

No. TS1220-600H is a unidirectional SCR (silicon-controlled rectifier), conducting current only from anode to cathode when triggered. For AC phase control, it must be used in conjunction with a diode or anti-parallel SCR; it does not function as a TRIAC.