STMicroelectronics STPS3030CR

Overview

STPS3030CR from STMicroelectronics is a dual low-drop Schottky rectifier in I2PAK package, rated for 2 × 15 A average forward current per diode, 30 V repetitive peak reverse voltage, and maximum junction temperature of 150 °C. It delivers low forward voltage drop (0.42 V max at 15 A, 25 °C), negligible switching losses, and avalanche capability up to 4100 W (1 µs pulse), making it suitable for high-frequency DC–DC converters and free-wheeling circuits in industrial power supplies.

For engineers reviewing the STPS3030CR datasheet, STPS3030CR pinout, STPS3030CR application, or STPS3030CR equivalent, key selection criteria include conduction loss modeling (P = 0.26×IF(AV) + 0.0107×IF²(RMS)), thermal resistance (Rth(j–c) = 1.2 °C/W per diode), avalanche rating, and I2PAK mounting torque (0.55 Nm recommended).

Technical Context

This dual Schottky rectifier integrates two independent anode-cathode junctions in a single I2PAK thermally optimized package, enabling synchronous or interleaved operation in low-voltage, high-current topologies. Its ultra-low VF and absence of minority-carrier storage eliminate reverse recovery charge, supporting >1 MHz switching without snubbers.

The device features specified avalanche energy handling (PARM = 4100 W at Tj = 25 °C, tp = 1 µs) and dV/dt immunity of 10,000 V/µs - critical for inductive load commutation and transient robustness in motor drives and SMPS secondary-side rectification.

Key Specifications

Pinout & Package

STPS3030CR uses the I2PAK (TO-262) package with three terminals: two anodes (A1, A2) and one common cathode (K). The package features a metal tab for thermal and electrical connection to the cathode, requiring insulated mounting when referenced to non-ground potentials.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-30CPH03-M3 and MBR3030CT, STPS3030CR offers the lowest VF and guaranteed avalanche capability in the compact I2PAK form factor - optimal for space-constrained, high-efficiency, and transient-heavy applications like motor drives and telecom rectifiers.

Availability

STPS3030CR is available at Aetrix Electronics and suitable for industrial DC–DC converters, automotive body control modules, server VRM outputs, and telecom rectifier modules requiring stable component supply, long-lifecycle support, and traceable sourcing.

Supply support for STPS3030CR 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 STPS3030 series belongs to ST's high-efficiency power rectifier product line, engineered specifically for low-voltage, high-frequency switching applications where conduction loss, thermal performance, and ruggedness are critical design constraints.

FAQ

What is the maximum continuous junction temperature for STPS3030CR?

The absolute maximum operating junction temperature (Tj) is 150 °C, as specified in Table 1 of the datasheet. This limit applies under steady-state conditions with proper heatsinking. Exceeding this temperature risks permanent degradation of the Schottky barrier and increased leakage current. Derating curves in Figure 2 show that average forward current must be reduced to ~10 A at 100 °C ambient with typical PCB copper area.

Can STPS3030CR be used in place of a single 30 A Schottky rectifier?

No - STPS3030CR contains two independent 15 A diodes sharing only a common cathode; it is not a monolithic 30 A device. Each anode must be driven separately. Using both anodes in parallel without current-sharing resistors or matched layout may cause thermal imbalance and premature failure due to VF mismatch. It is intended for dual-path or freewheeling topologies, not simple current doubling.

Is the I2PAK package lead-free and RoHS-compliant?

Yes - STPS3030CR is supplied in an ECOPACK®-certified I2PAK package with lead-free second-level interconnect, compliant with RoHS Directive 2011/65/EU and JEDEC JESD97. The inner box label indicates the lead-free category, and soldering profiles follow IPC/JEDEC J-STD-020 for MSL 1 handling. No exemption codes apply.

Does STPS3030CR require a minimum heatsink area for operation at full rated current?

Yes - at 15 A per diode and 150 °C max junction temperature, the required thermal resistance from case to ambient (Rth(c–a)) must be ≤ 2.8 °C/W (calculated from ΔT = P × Rth, where P ≈ 6.3 W per diode). Figure 10 shows Rth(j–a) drops from ~50 °C/W on minimal FR4 to ~25 °C/W with 30 cm² copper; a dedicated aluminum heatsink is strongly recommended for sustained full-load operation.