STMicroelectronics STPS2L60

Overview

STPS2L60 from STMicroelectronics is a 60 V, 2 A low-drop power Schottky rectifier optimized for high-frequency switch-mode power supplies and battery chargers. It features a typical forward voltage of 0.51 V at 125 °C and 2 A, negligible switching losses, avalanche rating, and ECOPACK2 compliance. Its SMA/SMB Flat/DO-41 packaging supports compact, thermally efficient designs in auxiliary and low-voltage DC-DC stages.

For engineers reviewing the STPS2L60 datasheet, STPS2L60 pinout, STPS2L60 application, or STPS2L60 equivalent, key selection criteria include forward voltage drop at operating temperature, thermal resistance (R_th(j-l) = 15 °C/W for SMB Flat), repetitive peak reverse voltage (60 V), surge current capability (75 A), and package-specific derating curves for ambient temperature and copper area.

Technical Context

The STPS2L60 is a unidirectional, planar Schottky barrier diode with no minority-carrier storage delay-enabling zero reverse recovery charge (Q_rr ≈ 0) and eliminating switching losses in high-frequency converters. Its junction-to-lead thermal resistance varies by package: 15 °C/W (SMB Flat), 20 °C/W (SMA Flat Notch), and 25 °C/W (SMA).

It operates up to 150 °C junction temperature and sustains repetitive avalanche energy (P_ARM = 115 W at t_p = 10 µs, T_j = 125 °C). Reverse leakage remains below 10 µA at 25 °C and ≤2 mA at 100 °C under full V_RRM, supporting stable operation in warm, space-constrained environments.

Key Specifications

Pinout & Package

STPS2L60 is offered in four discrete package variants: SMA, SMA Flat Notch, SMB Flat, and DO-41. All are two-terminal devices with anode and cathode leads. The cathode is marked by a band on the body (visible in SMA Flat Notch and SMB Flat outlines). Thermal performance and PCB footprint differ significantly across variants.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SB260 and SS26, the STPS2L60 delivers lower forward voltage at elevated temperature, higher avalanche energy handling, and broader thermal operating range-making it optimal for compact, high-efficiency, and thermally constrained power supplies where reliability under transient stress is critical.

Availability

STPS2L60 is available at Aetrix Electronics and suitable for lighting power supplies, desktop SMPS auxiliary rails, and battery charger output stages requiring stable component supply, long-term lifecycle support, and consistent parametric performance across manufacturing lots.

Supply support for STPS2L60 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 STPS2L60 belongs to ST's high-efficiency Schottky rectifier product line, engineered specifically for high-frequency, low-voltage DC-DC conversion where minimal conduction loss and thermal resilience are essential.

FAQ

What is the maximum allowable ambient temperature for STPS2L60 in SMB Flat package at 2 A DC?

At 2 A average forward current and δ = 0.5 square wave, the SMB Flat variant supports up to 100 °C ambient temperature when mounted on 2.5 cm² copper area per lead (R_th(j-a) = 40 °C/W). Derating begins above this point per Figure 3 in DS2976 Rev 8.

Does STPS2L60 require a heatsink in typical 2 A applications?

No external heatsink is required if PCB copper area meets minimum recommendations: ≥2.5 cm² per lead for SMB Flat, ≥5 cm² for SMA. Thermal performance relies on conduction through leads and copper pour-not forced air or finned metal.

How does STPS2L60 compare to standard silicon rectifiers in terms of reverse recovery?

Unlike silicon PN-junction diodes, STPS2L60 exhibits no reverse recovery time (t_rr) or charge (Q_rr) due to its majority-carrier Schottky structure. This eliminates turn-off switching loss and associated EMI, enabling clean operation in >200 kHz converters where silicon diodes would overheat or ring.

Is STPS2L60 suitable for automotive applications?

While not AEC-Q101 qualified, STPS2L60 operates reliably from –65 °C to +150 °C and is used in non-safety-critical automotive auxiliary systems (e.g., infotainment power supplies). For ASIL-B/C applications, ST recommends AEC-Q101-certified alternatives such as STPS3L60S.