STMicroelectronics STTH6110TV1

Overview

STTH6110TV1 from STMicroelectronics is an ultrafast recovery, high-voltage silicon rectifier diode in ISOTOP package, rated for 1000 V repetitive peak reverse voltage (V_RRM), 30 A average forward current per diode at T_c = 60 °C, and 42 ns typical reverse recovery time (t_rr) at 125 °C with dI_F/dt = −200 A/µs. It delivers low conduction loss (V_F = 1.3 V typ. at 150 °C, 30 A) and soft recovery (S factor = 1) for high-frequency industrial switching applications.

For engineers reviewing the STTH6110TV1 datasheet, STTH6110TV1 pinout, STTH6110TV1 application, or STTH6110TV1 equivalent, key selection criteria include verified ultrafast soft recovery behavior, insulated case rating (2500 V_RMS), junction-to-case thermal resistance (1.4 °C/W per diode), and suitability for freewheeling in motor drives and snubber circuits requiring low EMI and thermal stability.

Technical Context

This dual-diode ISOTOP device integrates two independent ultrafast rectifiers sharing a common electrically insulated metal baseplate. Its soft recovery (S ≈ 1) minimizes voltage overshoot and ringing during turn-off, critical for reducing EMI in high-dI/dt environments like IGBT-based inverters. The 45 pF junction capacitance and low leakage (≤100 µA at 125 °C, V_RRM) support stable operation under high-temperature, high-voltage bias conditions.

Thermal coupling between diodes is quantified by R_th(c) = 0.1 °C/W, enabling accurate junction temperature estimation when both diodes operate simultaneously. Conduction loss modeling uses P = 1.3 × I_F(AV) + 0.013 × I_F(RMS)², validated across δ = 0.05 to 0.5 duty cycles and T_j up to 150 °C.

Key Specifications

Pinout & Package

The STTH6110TV1 is housed in an ISOTOP package: a molded epoxy-insulated, dual-diode configuration with four external terminals (K1, A1, K2, A2) and a common electrically isolated metal baseplate. Dimensions comply with ST's ISOTOP mechanical specification (A = 12.0 mm, D = 38.0 mm, E = 25.3 mm, weight = 27 g).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MUR1560E and VS-25CPH06, STTH6110TV1 uniquely combines 1000 V rating, 2500 V_RMS insulation, and verified soft recovery in a thermally coupled dual-diode ISOTOP package-making it optimal for new 800 V industrial drives where reliability, EMI control, and thermal management are co-constrained.

Availability

STTH6110TV1 is available at Aetrix Electronics and suitable for industrial motor drives, switch-mode power supplies, and snubber networks requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.

Supply support for STTH6110TV1 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 automotive, industrial, and consumer markets.

The STTH series targets high-reliability industrial power conversion, emphasizing ruggedness, reproducible ultrafast recovery, and intrinsic thermal robustness for demanding rectification and freewheeling roles.

FAQ

What is the maximum allowable case temperature for continuous operation?

The datasheet specifies I_F(AV) = 30 A at T_c = 60 °C. Operation above this requires linear derating per the thermal resistance curve: at T_c = 80 °C, I_F(AV) drops to ~22 A. Exceeding 100 °C case temperature risks exceeding T_j(max) = 150 °C even with nominal current, especially under high ambient or poor heatsinking.

Can STTH6110TV1 be used in parallel configurations?

Yes, but only with matched diodes and symmetrical PCB layout. The datasheet provides coupling thermal resistance (R_th(c) = 0.1 °C/W) to model mutual heating. Parallel use requires individual current sharing analysis using forward voltage matching at operating temperature-not just room-temperature V_F sorting-to avoid thermal runaway.

Is the ISOTOP package RoHS-compliant and lead-free?

Yes. ST confirms ECOPACK® compliance with JEDEC JESD97, including lead-free second-level interconnect. The inner box label and package marking indicate the lead-free category. UL94 V0-rated epoxy ensures flammability compliance for industrial equipment enclosures.

How does soft recovery impact EMI performance in motor drive inverters?

Soft recovery (S factor ≈ 1) eliminates abrupt current zero-crossing, suppressing high-frequency spectral components generated by hard reverse recovery. In 15–20 kHz IGBT inverters, this reduces conducted EMI by 8–12 dB in the 30–100 MHz band, easing EMC filter design and lowering common-mode choke size/cost.