Vishay General Semiconductor - Diodes Division FEPF16FTHE3_A/P

Overview

FEPF16FTHE3_A/P from Vishay General Semiconductor is a dual common-cathode ultrafast plastic rectifier in TO-220AB package, rated for 400 V repetitive peak reverse voltage (V_RRM), 16 A average forward current per diode (I_F(AV)), and 35 ns reverse recovery time (t_rr). It delivers low forward voltage drop (1.30 V at 8.0 A), high surge capability (200 A I_FSM), and operates up to 150 °C junction temperature - deployed in high-frequency switching power supplies and DC/DC converters.

For engineers reviewing the FEPF16FTHE3_A/P datasheet, FEPF16FTHE3_A/P pinout, FEPF16FTHE3_A/P application, or FEPF16FTHE3_A/P equivalent, key selection criteria include its dual common-cathode configuration, TO-220AB thermal resistance (2.2 °C/W per diode), AEC-Q101 qualification status (not applicable to this suffix), RoHS-compliant matte tin plating, and suitability for freewheeling and output rectification in compact industrial SMPS designs.

Technical Context

This device integrates two independent ultrafast silicon junction diodes sharing a common cathode terminal, enabling synchronous half-wave rectification or dual-channel freewheeling in single-package footprint. Its glass-passivated chip construction ensures stable performance under thermal cycling and high dv/dt conditions typical in 100–500 kHz switch-mode topologies.

The 35 ns t_rr and 1.30 V V_F at 8.0 A directly reduce switching losses and conduction losses respectively, while the 2.2 °C/W R_θJC supports efficient heatsink coupling in thermally constrained enclosures - critical for continuous 16 A operation at T_C = 100 °C.

Key Specifications

Pinout & Package

Package: TO-220AB - 3-pin through-hole plastic power package with isolated heatsink tab (pin 2), rated for 10 in-lbs maximum mounting torque and compatible with J-STD-002 solderability standards.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH1604D and IXYS MBR1645CT, the FEPF16FTHE3_A/P uniquely combines dual common-cathode integration, 400 V blocking, 35 ns recovery, and 150 °C operation in a single TO-220AB package - eliminating layout compromises required by discrete alternatives while maintaining thermal headroom in demanding industrial power designs.

Availability

FEPF16FTHE3_A/P is available at Aetrix Electronics and suitable for high-frequency switching power supplies, DC/DC converters, and industrial motor drive auxiliary power circuits requiring stable component supply, long-term manufacturability, and consistent parametric performance across production lots.

Supply support for FEPF16FTHE3_A/P 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

Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability, thermal performance, and application-specific optimization.

The FEPF16FTHE3_A/P belongs to the FEP16xT family of ultrafast dual rectifiers designed specifically for high-efficiency, high-reliability power conversion in industrial, computing, and telecom infrastructure where thermal stability and switching loss minimization are critical.

FAQ

What is the maximum junction temperature rating for the FEPF16FTHE3_A/P?

The FEPF16FTHE3_A/P has a maximum junction temperature (T_J) rating of 150 °C. This specification is confirmed in the Vishay datasheet Document Number 88596, page 2, under Maximum Ratings. The device maintains full electrical performance up to this temperature when operated within its thermal limits, making it suitable for enclosed or high-ambient industrial environments where passive cooling is used. Derating curves in Figure 1 confirm 16 A I_F(AV) capability at T_C = 100 °C, which corresponds to safe operation at T_J = 150 °C with appropriate heatsinking.

Is the FEPF16FTHE3_A/P AEC-Q101 qualified?

No, the FEPF16FTHE3_A/P is not AEC-Q101 qualified. Per the Vishay datasheet Document Number 88596, AEC-Q101 qualification applies only to parts with the HM3 suffix (e.g., FEPB16JTHM3/I). The FEPF16FTHE3_A/P carries the E3 suffix, indicating RoHS-compliant commercial-grade construction without automotive qualification testing. For automotive applications requiring AEC-Q101 compliance, engineers must select the HM3-suffixed variant in D2PAK (TO-263AB) package - the FEPF16FTHE3_A/P itself is intended for industrial and computing power systems.

What is the reverse recovery time (t_rr) of the FEPF16FTHE3_A/P and how is it measured?

The FEPF16FTHE3_A/P has a reverse recovery time (t_rr) of 35 ns. As specified in the Vishay datasheet Document Number 88596, page 2, this value is measured under standardized test conditions: I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This ultrafast recovery enables efficient operation in high-frequency switching applications such as 250–500 kHz DC/DC converters, where minimizing reverse recovery charge (Q_rr) reduces switching losses and EMI generation. The 35 ns t_rr is consistent across both diodes in the dual common-cathode configuration of the FEPF16FTHE3_A/P.

Can the FEPF16FTHE3_A/P be mounted directly to a heatsink, and what is the thermal resistance?

Yes, the FEPF16FTHE3_A/P can be mounted directly to a heatsink using its isolated metal tab (Pin 2), which serves as the common cathode and thermal interface. Its typical thermal resistance from junction to case (R_θJC) is 2.2 °C/W per diode, as stated in the Vishay datasheet Document Number 88596, page 2. This low thermal resistance allows effective heat transfer when mated with a properly sized heatsink and thermal interface material. Mounting torque must not exceed 10 in-lbs to avoid package damage, and electrical isolation is required if the heatsink is grounded - the TO-220AB package does not provide internal insulation between tab and leads.

What does the "E3" suffix in FEPF16FTHE3_A/P indicate?

The "E3" suffix in FEPF16FTHE3_A/P indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting J-STD-002 solderability requirements and JESD 201 Class 1A whisker resistance. Per the Vishay datasheet Document Number 88596, E3-suffixed parts are not halogen-free (unlike M3) and are not AEC-Q101 qualified (unlike HM3). The "A/P" in the full part number denotes tape-and-reel packaging (800 units per reel), while "FEPF16FT" identifies the specific variant: 400 V V_RRM, dual common-cathode, TO-220AB package. This suffix coding ensures traceability and compliance alignment for industrial manufacturing.