STMicroelectronics STPS0530Z

Overview

STPS0530Z from STMicroelectronics is a single Schottky rectifier in SOD-123 package, rated for 30 V repetitive peak reverse voltage (V_RRM), 0.5 A average forward current (I_F(AV)), and 0.33 V maximum forward voltage drop at 0.5 A and 125 °C. It delivers negligible switching losses and extremely fast switching for low-voltage, high-frequency DC/DC converters and GSM/PCMCIA power rails.

For engineers reviewing the STPS0530Z datasheet, STPS0530Z pinout, STPS0530Z application, or STPS0530Z equivalent, key selection criteria include conduction loss optimization at ≤0.5 A, thermal resistance of 340 °C/W (on 2.5 mm² copper), cathode-marked SOD-123 footprint compatibility, and reverse leakage <21 mA at 125 °C and V_RRM.

Technical Context

This Schottky diode operates with metal–semiconductor junction architecture to eliminate minority-carrier storage delay, enabling sub-nanosecond recovery and zero reverse recovery charge (Q_rr). Its low V_F (0.20–0.33 V) and minimal dV/dt sensitivity (10,000 V/µs) support stable operation in synchronous rectification and freewheeling paths up to several MHz.

The device is characterized for junction temperatures from –40 °C to +150 °C, with thermal runaway prevention design validated under self-heated conditions on FR4 PCBs. R_th(j-a) = 340 °C/W assumes 2.5 mm² copper area per lead - critical for ambient-limited designs below 75 °C.

Key Specifications

Pinout & Package

STPS0530Z uses the SOD-123 surface-mount package (JEDEC DO-213AA), with two terminals: anode (A) and cathode (K). The cathode is marked by a band on the package body. Dimensions: 2.70 × 1.30 × 1.15 mm (L × W × H); weight: 0.01 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with NSS0530P5T5G and SS13FL, STPS0530Z uniquely balances ultra-low V_F, SOD-123 miniaturization, and verified 0.5 A derating on minimal copper - making it optimal for space-constrained, thermally sensitive 24 V-input DC/DC stages.

Availability

STPS0530Z is available at Aetrix Electronics and suitable for GSM handset power management, PCMCIA interface protection, and low-power AC-DC adapter designs requiring stable component supply and consistent SOD-123 footprint compliance.

Supply support for STPS0530Z 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 analog, digital, and mixed-signal ICs and discrete devices for industrial, automotive, and consumer markets.

The STPS series targets high-efficiency, low-voltage power conversion with Schottky technology optimized for compact footprints and minimal conduction loss - specifically addressing portable electronics and space-constrained power supplies.

FAQ

What is the maximum junction temperature for continuous operation?

The STPS0530Z has a specified operating junction temperature range of –40 °C to +150 °C. Continuous operation at 150 °C requires strict adherence to derating curves in Figure 2 and thermal layout with ≥2.5 mm² copper per lead to maintain R_th(j-a) ≤ 340 °C/W. Exceeding this limit risks parametric shift and accelerated degradation.

Can STPS0530Z replace a standard PN rectifier in a 5 V/0.5 A buck converter?

Yes - its 0.33 V V_F at 0.5 A cuts conduction loss by ~60 % versus a typical 1N400x PN diode (V_F ≈ 0.8–1.1 V). No gate drive or timing changes are needed, but ensure layout minimizes parasitic inductance since Schottky behavior is inherently faster and more sensitive to ringing.

Is the SOD-123 package lead-free and RoHS-compliant?

Yes - STPS0530Z is supplied in ECOPACK®-compliant SOD-123 packaging meeting RoHS Directive 2011/65/EU and halogen-free requirements. The epoxy mold compound complies with UL94 V0 flammability rating, and lead finish is matte tin (Sn) over nickel underplate.

How does reverse leakage behave at elevated temperature and full V_RRM?

At T_j = 125 °C and V_R = 30 V, reverse leakage reaches 9–21 mA (max), per Table 4. This is significantly higher than room-temperature leakage (130 µA), so designs relying on low standby current must either limit junction temperature or add parallel leakage compensation circuitry.