STMicroelectronics STPS15H100CB

Overview

STPS15H100CB from STMicroelectronics is a dual-center-tab high-voltage Schottky rectifier in DPAK package, rated for 100 V repetitive peak reverse voltage and 15 A total average forward current (2 × 7.5 A per diode), with typical forward voltage drop of 0.62 V at 7.5 A and 125 °C junction temperature. It is designed for high-frequency DC–DC converters and switched-mode power supplies where low conduction loss and negligible switching losses are critical.

For engineers reviewing the STPS15H100CB datasheet, STPS15H100CB pinout, STPS15H100CB application, or STPS15H100CB equivalent, key selection factors include its dual-diode thermal coupling behavior, avalanche-rated 475 W peak power capability, low R_th(j-c) of 4 °C/W per diode, and ECOPACK®2-compliant DPAK packaging for industrial power conversion designs.

Technical Context

This device integrates two independent Schottky diodes sharing a common cathode tab and thermally coupled case, enabling balanced current sharing in parallel-output or center-tapped topologies. Its low VF–IR trade-off is optimized for 100 V-class SMPS operating above 100 kHz, with specified avalanche robustness under transient overvoltage conditions.

The DPAK package provides direct thermal conduction via the exposed cathode pad, achieving 2.4 °C/W total junction-to-case thermal resistance across both diodes. Thermal derating curves confirm stable operation up to 175 °C junction temperature, supported by 0.7 °C/W inter-diode coupling resistance (R_th(c)).

Key Specifications

Pinout & Package

DPAK (TO-252) package with exposed cathode thermal pad on underside; mechanical outline conforms to ST's standard DPAK footprint (6.08 mm × 6.54 mm body, 2.3 mm height). Dual-diode configuration features three terminals: Anode 1 (A1), Anode 2 (A2), and shared Cathode (K).

Key Features

Applications

Equivalent & Alternatives

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

Compared with NTS15H100CT and VS-15H100C-M3, STPS15H100CB delivers the lowest VF and highest avalanche robustness in the 100 V dual Schottky class, making it optimal for high-efficiency, high-reliability power conversion where thermal and transient margins are constrained.

Availability

STPS15H100CB is available at Aetrix Electronics and suitable for server power supply, telecom rectifier, and industrial motor drive applications requiring stable component supply and long-term lifecycle support.

Supply support for STPS15H100CB 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, digital, and mixed-signal ICs for automotive, industrial, and power applications.

The STPS15H100CB belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for high-frequency, high-efficiency power conversion systems where low VF, thermal robustness, and avalanche reliability are mandatory.

FAQ

What is the maximum continuous current rating per diode at 100 °C case temperature?

At T_c = 100 °C, the maximum average forward current per diode is 9.2 A, derived from the derating curve in Figure 2 of the datasheet. This assumes δ = 0.5 square-wave duty cycle and proper thermal coupling to a heatsink or PCB copper area meeting the 2.4 °C/W total R_th(j-c) specification.

Can STPS15H100CB be used in parallel with another identical device?

No-parallel connection is not recommended due to mismatch in forward voltage drop and thermal coupling. The device is internally dual-diode with shared cathode; external paralleling introduces unbalanced current sharing and thermal runaway risk. For higher current, select a single higher-rated part like STPS20H100C.

Is the DPAK package lead-free and RoHS compliant?

Yes-STPS15H100CB is manufactured in an ECOPACK®2-compliant DPAK package, which is halogen-free, RoHS-compliant, and meets UL94 V0 flammability requirements. The "B" suffix in the order code (STPS15H100CB) explicitly denotes this environmental grade.

Does the device require a gate driver or control signal?

No-STPS15H100CB is a passive Schottky rectifier with no control inputs. It conducts when anode voltage exceeds cathode voltage by >0.6 V and blocks when reverse biased. No gate driver, biasing, or timing circuitry is needed; it operates autonomously based on circuit voltage polarity.