Taiwan Semiconductor Corporation ES2C

Overview

ES2C from Taiwan Semiconductor is a 2 A, 150 V super fast recovery surface-mount rectifier in DO-214AA (SMB) package, featuring 35 ns reverse recovery time, 0.95 V forward voltage at 2 A and 25 °C, and 50 A surge current capability - deployed in DC-DC converters and snubber circuits.

For engineers reviewing the ES2C datasheet, ES2C pinout, ES2C application, or ES2C equivalent, key selection criteria include repetitive peak reverse voltage (150 V), thermal resistance (20 °C/W junction-to-lead), moisture sensitivity level (J-STD-020 Level 1), RoHS/halogen-free compliance, and SMB package compatibility with automated placement.

Technical Context

The ES2C is a single-die, glass-passivated silicon rectifier optimized for high-frequency switching applications. Its 35 ns trr and low VF enable high-efficiency operation in SMPS topologies where rapid turn-off and conduction loss minimization are critical.

Thermally, it supports continuous operation up to 150 °C junction temperature with R_θJL = 20 °C/W and R_θJA = 75 °C/W. Polarity is marked by a cathode band, and terminals are matte tin-plated per J-STD-002 solderability standards.

Key Specifications

Pinout & Package

Package: DO-214AA (SMB), surface-mount, low-profile plastic case with matte tin-plated leads and cathode band polarity marking.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ES2C, MUR220 offers higher reverse voltage headroom at identical speed and form factor, while VS-2EYH01-M3/54 trades blocking capability for lower VF and faster t_rr - making ES2C the balanced choice for 150 V-rated 2 A SMPS rectification with robust surge and thermal performance.

Availability

ES2C is available at Aetrix Electronics and suitable for DC–DC converters, snubber circuits, lighting drivers, and freewheeling applications requiring stable component supply, J-STD-020 Level 1 handling, and RoHS-compliant sourcing.

Supply support for ES2C 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in rectifiers, TVS diodes, MOSFETs, and bipolar transistors.

The ES2x series was designed specifically for high-efficiency, high-frequency switching power supplies - emphasizing fast recovery, low forward drop, and robust surge capability in compact SMB packages.

FAQ

What is the maximum repetitive peak reverse voltage rating for ES2C?

The ES2C has a maximum repetitive peak reverse voltage (V_RRM) of 150 V, as specified in the absolute maximum ratings table. This value defines the highest reverse voltage the device can block continuously under normal operating conditions without breakdown. Exceeding 150 V may cause avalanche conduction or permanent damage. The ES2C datasheet confirms this rating applies specifically to the ES2C variant within the ES2x family.

What is the forward voltage drop of ES2C at rated current and room temperature?

The ES2C exhibits a typical forward voltage drop (V_F) of 0.95 V at 2 A forward current and 25 °C junction temperature, per the electrical specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents conduction loss under standard test conditions. At elevated temperatures or higher currents, V_F will increase slightly due to positive temperature coefficient behavior inherent to silicon PN junctions.

Does ES2C have a defined reverse recovery time, and how is it measured?

Yes, the ES2C has a maximum reverse recovery time (t_rr) of 35 ns, measured under the condition I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This parameter reflects the time required for the device to transition from forward conduction to reverse blocking state. The 35 ns value is confirmed in the Electrical Specifications section of the ES2C datasheet and is consistent across the ES2A–ES2D subgroup.

What package type does ES2C use, and what are its key mechanical attributes?

The ES2C uses the DO-214AA (SMB) surface-mount package, with matte tin-plated leads compliant with J-STD-002 solderability requirements. Key mechanical attributes include UL 94V-0 flammability rating, JESD 201 Class 2 whisker resistance, polarity indicated by cathode band, and approximate weight of 0.090 g. These features are explicitly documented in the Mechanical Data section for ES2C in the Taiwan Semiconductor datasheet.

Is ES2C compliant with environmental regulations such as RoHS and halogen-free standards?

Yes, ES2C is RoHS compliant and halogen-free per IEC 61249-2-21, as stated in the FEATURES section of the official Taiwan Semiconductor datasheet. These compliance statements apply specifically to the ES2C variant and are verified through material declarations and third-party testing. No exemptions or exceptions are noted for ES2C in the published documentation.