STMicroelectronics STPS60SM200CW

Overview

STPS60SM200CW from STMicroelectronics is a dual common-cathode Schottky rectifier in TO-247 package, rated for 200 V repetitive reverse voltage and 2 × 30 A average forward current per diode at Tc = 155 °C. It delivers low forward voltage drop (0.64–0.69 V typ. at 30 A, 125 °C), high-frequency switching capability, and thermal robustness up to 175 °C junction temperature - deployed in telecom base station SMPS for high-efficiency power conversion across load ranges.

For engineers reviewing the STPS60SM200CW datasheet, STPS60SM200CW pinout, STPS60SM200CW application, or STPS60SM200CW equivalent, key selection criteria include dual-diode conduction loss modeling (P = 0.58×IF(AV) + 0.0037×IF²(RMS)), junction-to-case thermal resistance (0.7 °C/W per diode), reverse leakage (≤13 mA at 125 °C, VR = 200 V), and TO-247 mechanical mounting torque (0.55–1.0 N·m).

Technical Context

This device integrates two independent Schottky diodes sharing a common cathode terminal, enabling synchronous rectification or dual-output DC/DC topologies. Its low VF and absence of minority-carrier storage enable zero-recovery operation, eliminating switching losses during turn-off and supporting >100 kHz SMPS designs without snubbers.

Thermal design relies on conduction cooling via the TO-247 case; junction-to-case resistance is 0.7 °C/W per diode, with 0.3 °C/W coupling between diodes. Derating curves confirm 30 A per diode at Tc = 155 °C (δ = 0.5), and surge capability reaches 500 A (10 ms, sinusoidal) under specified conditions.

Key Specifications

Pinout & Package

Housed in TO-247 package with three terminals: two anodes (A1, A2) and one common cathode (K). Mounting requires 0.55–1.0 N·m torque on the central screw; epoxy meets UL94 V0 flammability rating. Case is electrically isolated from internal die but thermally coupled to both diodes.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-60CPH02-M3, STPS60SM200CW offers lower VF and better thermal separation between diodes (Rth(c) = 0.3 °C/W), while MUR1520CT trades efficiency for ruggedness in high-dV/dt noise environments - making STPS60SM200CW optimal for high-frequency, high-efficiency telecom and server SMPS.

Availability

STPS60SM200CW is available at Aetrix Electronics and suitable for telecom base station SMPS, server PSU secondary side, industrial motor drive auxiliary supplies, and renewable energy inverter auxiliary supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for STPS60SM200CW 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, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

The STPS series targets high-efficiency power conversion systems requiring low-loss, high-reliability rectification - specifically engineered for telecom infrastructure, enterprise computing, and industrial automation where thermal performance and conduction loss dominate design trade-offs.

FAQ

What is the maximum allowable case temperature for continuous operation?

The STPS60SM200CW supports continuous operation with case temperature up to 155 °C when delivering 30 A per diode (δ = 0.5). At Tc = 150 °C, the device is rated for 60 A total (30 A per diode). Exceeding 155 °C requires derating per Figure 2 in the datasheet, and junction temperature must remain ≤175 °C.

Can STPS60SM200CW be used in parallel with another unit for higher current?

No - the device is not characterized for parallel operation. Its dual-diode structure shares a common thermal path and cathode node; paralleling multiple STPS60SM200CW units introduces uncontrolled current imbalance due to VF mismatch and thermal coupling. For >60 A, use a single higher-rated part like STPS80H200C.

Is the TO-247 package electrically insulated?

The TO-247 case is electrically connected to the cathode (K) terminal - it is not isolated. The metal tab serves as the common cathode node and must be mounted on an electrically grounded or referenced heatsink. Use insulating pads only if circuit topology requires cathode isolation from chassis ground.

How does reverse leakage vary with temperature and voltage?

Reverse leakage increases exponentially with temperature: 0.05 mA at 25 °C, rising to 6–13 mA at 125 °C (VR = VRRM). It also rises linearly with applied reverse voltage below breakdown - Figure 5 shows IR ≈ 1 mA at 100 V and 125 °C. This behavior must be modeled in high-impedance bias networks or standby power budgets.