STMicroelectronics STTH6110TV2

Overview

STTH6110TV2 from STMicroelectronics is an ultrafast recovery, high-voltage silicon rectifier diode in ISOTOP package, rated for 1000 V repetitive peak reverse voltage (VRRM), 30 A average forward current per diode at Tc = 60 °C, and 42 ns typical reverse recovery time (trr) at IF = 1 A, dIF/dt = −200 A/µs, VR = 30 V, Tj = 25 °C. It delivers low conduction loss (VF typ. 1.3 V at Tj = 150 °C, IF = 30 A) and soft recovery for reduced EMI in industrial power supplies and motor control freewheeling.

For engineers reviewing the STTH6110TV2 datasheet, STTH6110TV2 pinout, STTH6110TV2 application, or STTH6110TV2 equivalent, key selection criteria include its insulated ISOTOP package (2500 VRMS isolation), junction-to-case thermal resistance of 1.4 °C/W per diode, softness factor ≥1, and suitability for high-frequency switching with pulsed current up to 350 A (IFRM).

Technical Context

This dual-diode device integrates two independent ultrafast rectifiers in a single electrically insulated ISOTOP housing, enabling synchronous or interleaved operation in bridge configurations. Its soft recovery behavior-quantified by S ≥ 1-minimizes voltage overshoot and ringing during turn-off, critical for snubberless designs in high-dV/dt environments.

The diode's thermal design supports parallel operation: coupling thermal resistance (Rth(c) = 0.1 °C/W) and total thermal resistance (0.75 °C/W for both diodes) allow accurate junction temperature estimation under shared heatsink conditions. Dynamic parameters-including trr, IRM, and Qrr-are characterized across dIF/dt (50–500 A/µs) and Tj (25–125 °C), ensuring predictable performance in variable-load industrial systems.

Key Specifications

Pinout & Package

The STTH6110TV2 uses the ISOTOP package-a molded, electrically insulated, dual-diode configuration with four terminals (K1, A1, K2, A2) and metal baseplate for thermal conduction. Dimensions comply with JEDEC MS-012 variant: 38.0 × 25.3 × 12.0 mm (L × W × H), 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 MUR1620CT and VS-24CTH02-M3, STTH6110TV2 uniquely balances 1000 V capability, 30 A current, and 42 ns trr in an insulated package-making it irreplaceable for 600–800 V industrial rectification where isolation and ruggedness are non-negotiable.

Availability

STTH6110TV2 is available at Aetrix Electronics and suitable for industrial power supplies, motor control inverters, and snubber networks requiring stable component supply, long-lifecycle support, and traceable sourcing for production ramp-up.

Supply support for STTH6110TV2 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 industrial, automotive, and consumer markets.

The STTH series targets high-reliability industrial rectification, emphasizing ultrafast soft recovery, high-temperature operation, and insulated packaging for demanding power conversion systems.

FAQ

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

The STTH6110TV2 has a maximum junction temperature (Tj) of 150 °C. This rating allows operation in sealed industrial enclosures without forced airflow, provided the junction-to-case thermal resistance (1.4 °C/W per diode) and heatsink interface resistance are accounted for in thermal calculations. Derating is not required below this limit under specified IF(AV) and cooling conditions.

Can STTH6110TV2 be used in parallel configurations?

Yes-its matched dynamic characteristics and low thermal coupling (Rth(c) = 0.1 °C/W) enable reliable parallel operation. However, individual current sharing must be verified using external balancing resistors or matched layout, as parameter spread (e.g., VF tolerance ±0.2 V) may cause imbalance above 20 A per diode.

Does the ISOTOP package require additional insulation when mounted to a heatsink?

No-the ISOTOP package provides 2500 VRMS electrical isolation between terminals and baseplate, eliminating the need for mica washers or silicone pads. Mounting torque must remain within 0.5–0.7 N·m to maintain insulation integrity and thermal contact without cracking the epoxy body.

How does soft recovery improve EMI performance compared to standard fast diodes?

Soft recovery (S ≥ 1) ensures current decays monotonically during turn-off, avoiding abrupt current zero-crossing that generates high-frequency ringing. This reduces broadband EMI amplitude by 10–15 dB in the 30–100 MHz range, easing EMC compliance in industrial drives without increasing snubber losses or component count.