STMicroelectronics STPS160A

Overview

STPS160A from STMicroelectronics is a 60 V, 1 A surface-mount Schottky rectifier in SMA package, designed for high-frequency secondary-side rectification in DC/DC converters and notebook adapters. It delivers low forward voltage drop (0.49 V typ. at 1 A, 125 °C), negligible switching losses, and avalanche-rated capability (180 W peak) for robust operation in synchronous rectifier topologies.

For engineers reviewing the STPS160A datasheet, STPS160A pinout, STPS160A application, or STPS160A equivalent, key selection criteria include its 60 V reverse voltage rating, 150 °C max junction temperature, thermal resistance (R_th(j-l) = 30 °C/W), ECOPACK2 compliance, and suitability for parallel MOSFET use in low-voltage secondary rectification.

Technical Context

This Schottky diode operates as a unidirectional power rectifier with zero minority-carrier storage, enabling ultrafast switching and eliminating reverse recovery loss. Its metal–semiconductor junction yields low VF and high leakage tolerance up to 1.1 mA at 125 °C under full V_RRM.

The device supports three package variants (SMA, SMA Flat Notch, SMB), with STPS160A specifically using the standard SMA outline (JEDEC DO-214AC). Thermal performance is defined by junction-to-lead resistance (30 °C/W) and validated avalanche energy handling (10 µs pulse, 125 °C).

Key Specifications

Pinout & Package

STPS160A uses the SMA (DO-214AC) surface-mount package: cathode-banded, two-terminal, epoxy-molded, UL94 V0 compliant. Dimensions: D = 2.25–2.90 mm, E = 4.80–5.35 mm, L = 0.75–1.50 mm. Recommended footprint per DS0962 Rev 10 Figure 13.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SS16-E3/5AT and MBR160T3G, STPS160A provides superior thermal resilience (+150 °C vs. ≤125 °C), lower high-temp VF, and guaranteed avalanche capability-critical for reliability in compact, high-frequency adapters and DC/DC modules.

Availability

STPS160A is available at Aetrix Electronics and suitable for lighting power supplies, battery charger outputs, and DC/DC converter secondaries requiring stable component supply, RoHS-compliant sourcing, and consistent tape-and-reel delivery.

Supply support for STPS160A 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 analog, power, microcontroller, and sensor solutions for industrial, automotive, and consumer markets.

STPS160A belongs to ST's high-efficiency Schottky rectifier product line, engineered specifically for high-frequency, low-loss secondary-side rectification in space-constrained switched-mode power supplies.

FAQ

What is the maximum allowable case temperature for STPS160A in continuous operation?

The STPS160A does not specify a maximum case temperature directly; instead, it defines maximum junction temperature (T_j(max) = +150 °C) and junction-to-lead thermal resistance (R_th(j-l) = 30 °C/W). For continuous 1 A operation, case temperature must remain ≤120 °C to maintain safe junction margin assuming typical PCB copper area and ambient conditions.

Can STPS160A be used in parallel with a MOSFET for synchronous rectification?

Yes-ST's datasheet explicitly recommends STPS160A for parallel use with MOSFETs in synchronous and low-voltage secondary rectification. Its low VF and fast switching eliminate reverse recovery issues, and its avalanche rating protects against gate-drive timing mismatches during dead-time transitions.

Is STPS160A compatible with lead-free reflow soldering profiles?

Yes-STPS160A is qualified for lead-free reflow per JEDEC J-STD-020. The SMA package meets IPC/JEDEC standard peak temperature of 260 °C for 10 seconds, and its ECOPACK2 compliance confirms halogen-free, RoHS-compliant materials throughout construction.

How does the 180 W avalanche rating translate to real-world circuit protection?

The 180 W avalanche rating (at 10 µs, T_j = 125 °C) corresponds to ~1.8 mJ single-pulse energy. In practice, this allows STPS160A to safely absorb inductive spikes from transformer leakage or MOSFET turn-off in flyback converters without degradation-verified across 10⁵+ cycles in ST's qualification testing.