STMicroelectronics STTH30L06P

Overview

STTH30L06 from STMicroelectronics is a 600 V, 30 A ultrafast high-voltage rectifier diode using Turbo 2 technology, designed for discontinuous-mode PFC boost stages and output rectification in industrial SMPS. It delivers 1.0 V typical forward voltage at 150 °C, 65 ns max reverse recovery time, and 175 °C maximum junction temperature.

For engineers reviewing the STTH30L06 datasheet, STTH30L06 pinout, STTH30L06 application, or STTH30L06 equivalent, key selection criteria include conduction loss modeling (P = 0.95×IF(AV) + 0.010×IF²(RMS)), thermal resistance (1.1 °C/W for TO-220AC), soft recovery behavior (S factor >1.0), and DOP3I package insulation (2500 VRMS).

Technical Context

The STTH30L06 employs ST's Turbo 2 epitaxial process to achieve ultrafast switching with low Qrr (typ. 2500 nC at dIF/dt = 100 A/µs) and soft reverse recovery (S factor >1.0 up to 500 A/µs). Its design targets high-efficiency PFC and secondary-side rectification where low trr and low VF reduce both switching and conduction losses.

Thermal performance is optimized via low Rth(j-c): 1.1 °C/W for TO-220AC/D2PAK/TO-247 variants and 1.7 °C/W for insulated DOP3I. Reverse leakage remains under 800 µA at 150 °C and 600 V, supporting stable operation in high-temperature industrial environments.

Key Specifications

Pinout & Package

STTH30L06 is offered in five package variants: TO-220AC (3-pin, isolated tab), D2PAK (surface-mount), TO-247 (high-power through-hole), DO-247 (low-profile axial), and DOP3I (2500 VRMS insulated module). All variants feature cathode-anode-terminal configuration with electrically isolated heat sink interface in DOP3I and TO-220FPAC derivatives.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultrafast high-voltage rectifier applications.

Compared with MUR3060PT and VS-30E60-M3, the STTH30L06 offers the lowest combined VF/trr product (1.0 V × 65 ns) and broadest package portfolio-including 2500 VRMS-insulated DOP3I-making it optimal for high-reliability industrial PFC and motor drive applications demanding thermal headroom and layout flexibility.

Availability

STTH30L06 is available at Aetrix Electronics and suitable for industrial switch-mode power supplies, active PFC boost rectifiers, solar microinverters, and motor drive DC link protection requiring stable component supply across TO-220AC, D2PAK, TO-247, DO-247, and DOP3I packages.

Supply support for STTH30L06 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, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.

The STTH series belongs to ST's high-voltage power diode product line, engineered specifically for efficiency-critical rectification in industrial SMPS, PFC, and motor control systems where ultrafast recovery and thermal robustness are mandatory.

FAQ

What is the maximum allowable case temperature for continuous 30 A operation?

The STTH30L06 supports 30 A average forward current at Tc = 125 °C for TO-220AC/D2PAK/TO-247 packages (duty cycle δ = 0.5). For continuous DC operation, derating is required: at Tc = 100 °C, IF(AV) ≈ 36 A; at Tc = 80 °C, IF(AV) ≈ 42 A. Thermal design must ensure Rth(j-c) × Ploss + Tc ≤ 175 °C.

Does the DOP3I package provide galvanic isolation between anode/cathode and heatsink?

Yes. The DOP3I variant features reinforced insulation rated at 2500 VRMS between the internal die and external metal tab, enabling safe use in floating-ground topologies such as three-phase Vienna rectifiers or isolated DC-DC secondaries where cathode potential varies relative to chassis ground.

How does the soft recovery characteristic affect EMI filter design?

With S factor >1.0 across 50–500 A/µs dIF/dt range, the STTH30L06 produces minimal high-frequency ringing during turn-off. This reduces common-mode noise amplitude by ~12 dB compared to standard fast diodes, allowing smaller Y-capacitors and simplified EMI filter layouts-particularly beneficial in EN 55022 Class B-compliant industrial equipment.

Can STTH30L06 be paralleled for higher current handling?

Parallel operation is feasible but requires careful layout: matched PCB trace inductance (<5 nH difference), identical thermal mounting pressure, and individual current-sharing resistors (0.01 Ω, 5 W) to compensate for VF mismatch. ST specifies ±5% VF tolerance at 30 A, so unbalanced sharing may exceed 20% without mitigation.