STMicroelectronics STPS120L15TV

Overview

STPS120L15TV from STMicroelectronics is a dual 15 V, 2 × 60 A average forward current Schottky rectifier in ISOTOP™ insulated package, featuring 0.27 V typical forward voltage at 125 °C and 60 A, avalanche capability, and 2500 VRMS insulation rating. It serves as an OR-ing diode in fault-tolerant telecom and server power supplies where low conduction loss and thermal robustness are critical.

For engineers reviewing the STPS120L15TV datasheet, STPS120L15TV pinout, STPS120L15TV application, or STPS120L15TV equivalent, key selection criteria include its dual-diode configuration, 0.45 °C/W per-diode junction-to-case thermal resistance, 125 °C maximum junction temperature, and suitability for high-current DC-DC converters requiring galvanic isolation between input rails.

Technical Context

This dual Schottky rectifier integrates two independent 15 V/60 A diodes in a single ISOTOP™ package with internal coupling thermal path (Rth(c) = 0.1 °C/W), enabling coordinated thermal management when both diodes conduct simultaneously. Its 0.27 V VF(typ) at Tj = 125 °C and IF = 60 A minimizes conduction losses in high-efficiency SMPS designs.

The device supports repetitive avalanche operation up to 5186 W (tp = 10 µs, Tj = 125 °C) and withstands 1200 A non-repetitive surge current (tp = 10 ms sinusoidal), making it suitable for transient-heavy industrial and telecom power systems where fault energy absorption is required.

Key Specifications

Pinout & Package

The STPS120L15TV uses the ISOTOP™ package: a thermally optimized, insulated metal-base housing with four M4 mounting screws, epoxy rated UL94 V0, and recommended torque of 1.3 N·m. Dimensions: 38.0 mm × 25.3 mm × 12.0 mm (L × W × H).

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-120CT15 and MBR120L15CT, the STPS120L15TV uniquely combines galvanic isolation, superior thermal performance (0.45 °C/W), and documented avalanche robustness-making it the only option qualified for telecom-grade redundant power systems requiring both safety and reliability.

Availability

STPS120L15TV is available at Aetrix Electronics and suitable for server power OR-ing, telecom 48 V backup supply, and industrial DC-DC converter input stages requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for STPS120L15TV 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 automotive, industrial, and consumer markets.

The STPS120L15TV belongs to ST's high-power Schottky rectifier product line, engineered specifically for fault-tolerant power architectures demanding low VF, avalanche ruggedness, and integrated insulation in telecom and server infrastructure.

FAQ

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

At Tc = 100 °C, the STPS120L15TV supports 2 × 52 A average forward current per diode, derived from Figure 2 (IF(AV) vs Tamb) with derating applied using the published thermal model and Rth(j-c) = 0.45 °C/W. This value assumes proper heatsink attachment and ambient airflow consistent with test conditions.

Can STPS120L15TV be used in non-isolated topologies?

Yes, but only if the mounting base is electrically tied to a common reference potential (e.g., system ground) and all other terminals remain within safe voltage limits relative to that node. The 2500 VRMS insulation is not required in non-isolated use, though it provides margin against accidental shorts and ESD events.

Does the device require a minimum gate drive or control signal?

No - the STPS120L15TV is a passive Schottky rectifier with no gate or control terminal. It operates solely based on forward bias across its anode-cathode junctions; no external drive circuitry, timing signals, or enable pins are involved.

How does the coupling thermal resistance affect dual-diode simultaneous operation?

When both diodes conduct, junction temperature rise of Diode 1 equals P₁ × 0.45 + P₂ × 0.1 °C, where P₁ and P₂ are respective power dissipations. This coupling effect (Rth(c) = 0.1 °C/W) means thermal cross-talk must be modeled explicitly - unlike discrete packages - to avoid exceeding 125 °C Tj under asymmetric loading.