STMicroelectronics STPS15L30CDJFTR

Overview

STPS15L30CDJFTR from STMicroelectronics is a dual center-tap Schottky rectifier in PowerFLAT 5x6 package, rated for 30 V reverse voltage and 2 × 7.5 A average forward current per diode, with typical forward voltage of 0.34 V at 125 °C and 7.5 A - optimized for low-loss, high-frequency DC/DC converters and telecom power supplies.

For engineers reviewing the STPS15L30CDJFTR datasheet, STPS15L30CDJFTR pinout, STPS15L30CDJFTR application, or STPS15L30CDJFTR equivalent, key selection criteria include thermal resistance (R_th(j-c) = 2.5 °C/W per diode), avalanche rating (200 W, 10 µs), and thin 1 mm profile enabling space-constrained PCB layouts in SMPS and polarity protection circuits.

Technical Context

This dual-diode Schottky rectifier integrates two independent anode-cathode paths sharing a common cathode terminal (center-tap configuration), enabling synchronous rectification or dual-output flyback topologies. Its low conduction losses stem from ultra-low VF (0.34 V typ. @ 125 °C) and negligible switching losses due to majority-carrier operation.

The PowerFLAT 5x6 package delivers R_th(j-c) = 1.6 °C/W for the full device and supports high-current handling via copper-area–dependent R_th(j-a) (e.g., 7.5 °C/W with 100 cm² FR4 copper). Avalanche-rated operation allows robustness against inductive turn-off transients without external snubbers.

Key Specifications

Pinout & Package

Supplied in PowerFLAT 5x6 (3.91 × 5.90 mm footprint, 1.0 mm height), this dual center-tap Schottky features exposed thermal pad on underside and 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 dual Schottky rectifier applications.

Compared with NTS4101PT1G and VS-15CTQ030PBF, STPS15L30CDJFTR uniquely combines dual center-tap topology, 1 mm profile, and 2.5 °C/W thermal resistance - making it the sole option for compact, high-density, thermally constrained dual-output DC/DC converters.

Availability

STPS15L30CDJFTR is available at Aetrix Electronics and suitable for telecom DC/DC converters, server VRMs, and industrial SMPS requiring stable component supply across multi-year production cycles.

Supply support for STPS15L30CDJFTR 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, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

This device belongs to ST's Power Schottky Rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion where low VF, fast recovery, and thermal performance are critical.

FAQ

What is the maximum junction temperature and how does it affect PCB layout?

The STPS15L30CDJFTR has a maximum junction temperature of +150 °C. To maintain safe operation, the PCB must provide adequate copper area under the exposed thermal pad: ≥100 cm² of 70 µm copper reduces R_th(j-a) to ~7.5 °C/W. Thermal vias (≥8 × 0.3 mm) to inner ground planes further improve heat spreading without requiring external heatsinks.

Is this part suitable for synchronous rectification in a 500 kHz LLC resonant converter?

Yes - its negligible switching losses and extremely fast recovery (no minority-carrier storage) make it ideal for synchronous rectification up to 1 MHz. At 500 kHz, conduction loss dominates; the 0.34 V V_F at 125 °C ensures efficiency remains >94% in 12 V output stages with 15 A load, provided thermal design maintains T_j ≤ 135 °C.

How does the center-tap configuration simplify circuit design?

The shared cathode (K) terminal eliminates the need for two separate output traces and reduces parasitic inductance in dual-output or interleaved converters. It enables single-point grounding of both rectified paths, minimizing EMI and improving cross-regulation in multi-rail supplies - especially valuable in telecom brick and POL modules where layout area is tightly constrained.

Does the ECOPACK2 compliance impact soldering profiles or reliability testing?

ECOPACK2 compliance confirms halogen-free, RoHS-compliant materials and lead-free termination compatible with standard IPC/JEDEC J-STD-020D reflow profiles (peak 260 °C, 20–40 s above 217 °C). No special soldering or reliability testing is required beyond standard PowerFLAT 5x6 process controls; ST validates 1000-cycle thermal cycling and 1000 h HAST per JEDEC JESD22-A101.