STMicroelectronics STTH16L06CTY

Overview

STTH16L06CTY from STMicroelectronics is an AEC-Q101-qualified dual ultrafast high-voltage rectifier diode in TO-220AB package, rated for 600 V repetitive peak reverse voltage and 16 A total average forward current (8 A per diode), with 35 ns max reverse recovery time and 1.05 V typical forward voltage at 150 °C - optimized for automotive discontinuous-mode PFC boost stages and switching power supply outputs.

For engineers reviewing the STTH16L06CTY datasheet, STTH16L06CTY pinout, STTH16L06CTY application, or STTH16L06CTY equivalent, key selection criteria include junction-to-case thermal resistance (1.6 °C/W total), low reverse recovery current (≤6.5 A at 125 °C), PPAP capability, ECOPACK®2 compliance, and dual-diode configuration enabling interleaved or phase-split rectification in compact automotive power designs.

Technical Context

This dual common-cathode ultrafast rectifier integrates two independent 600 V, 8 A diodes sharing a thermally efficient TO-220AB case with 1.6 °C/W total junction-to-case thermal resistance. Its 35 ns trr (max) and soft recovery profile minimize switching losses and EMI in high-frequency (>100 kHz) PFC and DC/DC converters.

The device operates across -40 to +175 °C junction temperature range and delivers 1.05 V VF (typ.) at 150 °C and 8 A, enabling stable conduction loss performance under sustained automotive thermal stress. Reverse leakage remains ≤240 µA at 150 °C and full 600 V blocking.

Key Specifications

Pinout & Package

TO-220AB package with isolated tab (electrically connected to cathode), standard 3-pin outline: Pin 1 = Anode 1, Pin 2 = Cathode (common), Pin 3 = Anode 2. Mounting torque: 0.55 N·m (recommended), 0.7 N·m (max).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultrafast dual rectifier applications.

Compared with STTH16L06CGY-TR, the STTH16L06CTY trades 0.4 °C/W higher thermal resistance for superior mechanical stability and easier heatsink attachment; versus MUR1660CT, it delivers 42% lower trr and 15 °C higher Tj rating - directly enabling smaller heatsinks and extended lifetime in under-hood environments.

Availability

STTH16L06CTY is available at Aetrix Electronics and suitable for automotive on-board chargers, engine control unit power supplies, electric power steering modules, and industrial switching power supplies requiring stable component supply with full AEC-Q101 traceability and PPAP documentation.

Supply support for STTH16L06CTY 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 microcontrollers, power devices, sensors, and analog ICs for automotive, industrial, and consumer markets.

The STTH "Turbo 2" ultrafast rectifier product line targets high-efficiency, high-reliability automotive power conversion - specifically engineered to replace slower diodes in PFC, DC/DC, and motor drive applications where thermal resilience and switching speed are critical.

FAQ

What is the maximum continuous junction temperature for STTH16L06CTY?

The STTH16L06CTY has a specified maximum operating junction temperature of +175 °C, validated per AEC-Q101 stress testing. This allows full-rated operation at 135 °C case temperature (16 A total IF(AV)) without derating, making it suitable for under-hood automotive environments where ambient temperatures exceed 105 °C.

Is the metal tab electrically isolated or connected to a specific terminal?

The metal tab of the STTH16L06CTY in TO-220AB package is electrically connected to Pin 2 (the common cathode). It is not isolated - proper mounting requires electrical connection to the cathode net (typically system ground or return path), and insulation from other potentials unless intentional common-cathode referencing is part of the circuit architecture.

How does STTH16L06CTY differ from standard fast recovery diodes in PFC applications?

Unlike standard fast recovery diodes (trr ≈ 75–150 ns), STTH16L06CTY achieves ≤35 ns trr with soft recovery (S-factor >1.0), reducing reverse recovery dv/dt and associated EMI. Its 1.05 V VF at 150 °C also yields ~25% lower conduction loss than typical 1.4 V diodes at same current, directly improving PFC stage efficiency and thermal headroom.

Can STTH16L06CTY be used in single-diode configurations?

Yes - either anode (Pin 1 or Pin 3) can be used independently with the common cathode (Pin 2), delivering full 8 A IF(AV) and 600 V VRRM per diode. The internal structure is two fully independent die sharing only the cathode metallization and thermal path; unused anode terminals must be left unconnected or tied to appropriate potential per design requirements.