STMicroelectronics STTH3002CR

Overview

STTH3002CR from STMicroelectronics is a dual-center-tab ultrafast recovery rectifier diode in I2PAK package, rated for 2 × 15 A average forward current per diode, 200 V repetitive peak reverse voltage, and 17 ns typical reverse recovery time at 25 °C. It delivers low conduction loss (VF typ. 0.75 V at 15 A, 150 °C) and high surge capability (180 A non-repetitive), targeting high-frequency DC–DC converters and SMPS secondary-side rectification.

For engineers reviewing the STTH3002CR datasheet, STTH3002CR pinout, STTH3002CR application, or STTH3002CR equivalent, key selection criteria include thermal resistance (Rth(j–c) = 1.5 °C/W per diode), insulated mounting compatibility, dual-diode thermal coupling behavior, and junction temperature derating above 125 °C.

Technical Context

This dual-diode rectifier integrates two independent ultrafast switching junctions sharing a common cathode tab and isolated anode terminals (A1, A2), enabling synchronous or interleaved freewheeling in half-bridge and full-bridge topologies. Its 17 ns trr and low Qrr support operation up to 500 kHz with minimal switching loss.

The device uses platinum-doped silicon for controlled carrier lifetime, achieving balanced VF–trr trade-off: VF remains ≤0.84 V at 15 A/150 °C while maintaining IRM ≤7.8 A under 125 °C, 160 V reverse bias conditions. Thermal coupling between diodes is quantified by Rth(c) = 0.5 °C/W.

Key Specifications

Pinout & Package

STTH3002CR is housed in I2PAK (TO-262) thermally enhanced surface-mount package with isolated anode terminals and shared cathode tab. The package features epoxy body compliant with UL94 V0, 35 µm copper thickness on PCB for thermal conduction, and recommended mounting torque of 1.14–1.70 N·m.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultrafast dual-diode rectifier applications.

Compared with STTH30L06CW and DSSK30-02A, STTH3002CR offers optimal balance of speed (17 ns), thermal efficiency (0.75 V VF), and compact I2PAK footprint-making it ideal for space-constrained, high-frequency SMPS where both switching and conduction losses must be minimized.

Availability

STTH3002CR is available at Aetrix Electronics and suitable for server power supplies, industrial DC–DC converters, solar microinverters, and EV onboard charger auxiliary supplies requiring stable component supply and long-term lifecycle continuity.

Supply support for STTH3002CR 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, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.

STTH3002CR belongs to the STTH ultrafast diode product line, engineered specifically for high-efficiency, high-frequency switch-mode power conversion where low trr, stable VF over temperature, and robust surge capability are critical.

FAQ

What is the maximum allowable case temperature for continuous 15 A operation per diode?

The datasheet specifies IF(AV) = 15 A per diode at Tc = 150 °C for TO-220AB, TO-247, I2PAK, and D2PAK packages. At this case temperature, junction temperature reaches 175 °C-the absolute maximum-so sustained operation requires active cooling or derating below 15 A if case temperature exceeds 150 °C.

Can STTH3002CR be used in parallel with another identical device to increase current capacity?

No-STTH3002CR is a dual-diode device with internal thermal coupling; paralleling two units does not double current capacity due to unequal current sharing caused by VF mismatch and thermal crosstalk. For higher current, use a single higher-rated part like STTH6002CW (60 A total).

Is the I2PAK package of STTH3002CR lead-free and RoHS-compliant?

Yes-STTH3002CR is supplied in ECOPACK®-compliant I2PAK packaging with lead-free second-level interconnect, meeting RoHS Directive 2011/65/EU and JEDEC JESD97 standards. The inner box label indicates "Pb-free" and specifies soldering profile limits per JEDEC J-STD-020.

How does the dual-anode configuration affect PCB layout compared to single-diode rectifiers?

The A1 and A2 pins require separate high-current traces routed to distinct transformer secondaries or switching nodes, avoiding shared copper pour that could induce mutual inductance. The common cathode (K) must connect directly to a large thermal pad with ≥35 µm copper thickness and ≥10 cm² area to maintain Rth(j–c) ≤1.5 °C/W.