STMicroelectronics STTH10LCD06SB-TR

Overview

STTH10LCD06SB-TR from STMicroelectronics is an ultrafast high-voltage silicon rectifier diode using Turbo 2 technology, designed for primary-side rectification in LCD display switching power supplies. It delivers 10 A average forward current, 600 V repetitive peak reverse voltage, 35 ns typical reverse recovery time, and 1.3 V typical forward voltage at 150 °C - enabling efficient, thermally robust operation in compact flat-panel TV and monitor SMPS.

For engineers reviewing the STTH10LCD06SB-TR datasheet, STTH10LCD06SB-TR pinout, STTH10LCD06SB-TR application, or STTH10LCD06SB-TR equivalent, key selection criteria include conduction loss modeling (P = 1.20 × IF(AV) + 0.040 × IF²(RMS)), thermal resistance (Rth(j-c) = 3.5 °C/W), insulated DPAK package compatibility, and dIF/dt-dependent dynamic behavior up to 500 A/µs.

Technical Context

This device operates as a unidirectional, non-controlled power rectifier with zero gate drive requirement. Its Turbo 2 process minimizes minority carrier lifetime, achieving trr = 35 ns (typ) at IF = 1 A, dIF/dt = −50 A/µs, VR = 30 V, Tj = 25 °C, and IRM = 2.8 A (max) under harsh conditions (IF = 10 A, VR = 400 V, Tj = 125 °C).

Thermal design relies on low junction-to-case resistance (3.5 °C/W) and ECOPACK®2-compliant DPAK packaging with insulated thermal pad. The device sustains Tj(max) = 175 °C and withstands 100 A non-repetitive surge current (tp = 10 ms, sinusoidal), supporting high-reliability industrial display power stages.

Key Specifications

Pinout & Package

STTH10LCD06SB-TR uses the insulated DPAK (TO-252AA) package with three terminals: anode, cathode, and isolated thermal pad (electrically connected to cathode). The package meets UL94 V0 flammability rating and supports surface-mount reflow assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH10LCD06FP and VS-10EWH06-M3, STTH10LCD06SB-TR offers optimal balance of SMT density, thermal performance (3.5 °C/W), and dynamic efficiency (35 ns trr) for space-constrained LCD display power supplies - making it the preferred choice for volume production of flat-panel consumer electronics.

Availability

STTH10LCD06SB-TR is available at Aetrix Electronics and suitable for flat-panel TV power supplies, LCD monitor SMPS, and industrial display PSUs requiring stable component supply, long-term lifecycle support, and ECOPACK®2-compliant sourcing.

Supply support for STTH10LCD06SB-TR 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, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

This device belongs to ST's Turbo 2 ultrafast rectifier product line, engineered specifically for high-efficiency, high-reliability switching power supplies in flat-panel displays - emphasizing low trr, low VF drift, and robust thermal performance under sustained thermal stress.

FAQ

What is the maximum junction temperature and how does it affect reliability?

The STTH10LCD06SB-TR has a maximum operating junction temperature of 175 °C. Operating continuously at or near this limit accelerates parametric drift and reduces FIT rate; ST recommends maintaining Tj ≤ 150 °C via adequate PCB copper area (≥4 cm² thermal pad exposure) and airflow. Thermal runaway is avoided when dPtot/dTj < 1/Rth(j-a), per datasheet condition.

Is the DPAK thermal pad electrically isolated, and what is its voltage rating?

Yes - the exposed thermal pad on the STTH10LCD06SB-TR DPAK package is electrically connected to the cathode and rated for 2000 VRMS isolation (per TO-220FPAC variant test data, which shares identical die and insulation structure). This eliminates need for insulating hardware in metal-chassis applications, simplifying thermal design.

How does reverse recovery behavior change with dIF/dt and temperature?

trr increases from 35 ns (25 °C) to ~65 ns (125 °C) at dIF/dt = −50 A/µs; IRM rises from 1.5 A to 2.8 A over the same range. At fixed Tj = 125 °C, trr grows from 35 ns to 180 ns as dIF/dt increases from 50 to 500 A/µs - directly impacting snubber energy and MOSFET voltage stress in hard-switched topologies.

Can this diode replace a standard FRD in an existing 600 V design without layout changes?

Yes - STTH10LCD06SB-TR uses standard DPAK (TO-252AA) footprint and pinout, matching common FRD land patterns. However, verify that PCB thermal relief and solder mask openings accommodate the full thermal pad area (5.97 × 6.35 mm), and confirm that reduced trr does not induce unintended ringing in existing snubber networks due to faster current collapse.