Taiwan Semiconductor Corporation S10MCH

Overview

S10MCH from Taiwan Semiconductor is a 10A, 1000V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring glass passivated junction, AEC-Q101 qualification, and 250A peak surge current capability; used in automotive DC-DC converters and snubber circuits requiring high-reliability unidirectional conduction.

For engineers reviewing the S10MCH datasheet, S10MCH pinout, S10MCH application, or S10MCH equivalent, key selection criteria include verified V_RRM = 1000 V, I_F = 10 A continuous, T_JMAX = 150 °C, R_θJL = 10 °C/W, and AEC-Q101 qualification for under-hood automotive deployment.

Technical Context

The S10MCH is a single-die, standard recovery silicon rectifier optimized for high-voltage, medium-current AC/DC and DC/DC conversion stages. Its glass passivated junction ensures stable reverse leakage (<1 µA at 25°C, <250 µA at 125°C) and robust surge immunity (250 A, 8.3 ms half-sine).

Thermally, it delivers R_θJL = 10 °C/W and R_θJA = 47 °C/W in DO-214AB (SMC), enabling operation up to 150 °C junction temperature with appropriate PCB copper area; polarity is marked by cathode band per JEDEC standard.

Key Specifications

Pinout & Package

Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, polarity indicated by cathode band, weight ≈ 0.270 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH10R06DJF and MUR10100CT, the S10MCH uniquely combines 1000 V blocking, AEC-Q101 qualification, surface-mount DO-214AB packaging, and 250 A surge rating-making it the only option validated for high-reliability automotive surface-mount rectification at this voltage class.

Availability

S10MCH is available at Aetrix Electronics and suitable for automotive DC-DC converters, car lighting power supplies, and industrial snubber networks requiring stable component supply, AEC-Q101 compliance, and 1000 V high-voltage rectification capability.

Supply support for S10MCH 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 power devices, rectifiers, TVS diodes, and MOSFETs.

The S10MCH belongs to TSC's AEC-Q101-qualified S10xCH rectifier family, engineered specifically for high-reliability automotive and industrial power conversion where high V_RRM, surge robustness, and thermal performance are critical.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for the S10MCH?

The S10MCH has a maximum repetitive peak reverse voltage (V_RRM) of 1000 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version A2102). This rating applies under standard test conditions (T_A = 25°C) and defines the highest reverse voltage the S10MCH can block repeatedly without breakdown. It is the highest voltage grade in the S10xCH series, distinguishing it from S10GCH (400 V), S10JCH (600 V), and S10KCH (800 V).

Is the S10MCH qualified for automotive applications?

Yes, the S10MCH is explicitly AEC-Q101 qualified per the manufacturer's documentation. This qualification covers stress tests including high-temperature reverse bias (HTRB), temperature cycling, and unbiased highly accelerated stress testing (uHAST), confirming suitability for automotive under-hood and powertrain applications. The S10MCH datasheet (Version A2102) lists AEC-Q101 as a core feature, and its DO-214AB package meets JESD201 Class 2 whisker resistance and J-STD-020 moisture sensitivity level 1.

What is the forward voltage drop (V_F) of the S10MCH at rated current?

The S10MCH exhibits a maximum forward voltage drop (V_F) of 1.1 V at I_F = 10 A and T_J = 25°C, as specified in the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) to minimize self-heating. At elevated junction temperatures (e.g., 125°C), V_F decreases slightly due to semiconductor physics, but the 1.1 V max remains the design reference for worst-case conduction loss calculation in thermal modeling.

Does the S10MCH have a defined thermal resistance specification?

Yes, the S10MCH specifies two key thermal resistances: junction-to-lead (R_θJL) is 10 °C/W, and junction-to-ambient (R_θJA) is 47 °C/W, both measured under standard JEDEC test conditions. R_θJL is especially relevant for board-level thermal design when the device is soldered directly to a large copper pour or heatsink via the leads. These values are published in the Thermal Performance section of the Taiwan Semiconductor S10xCH datasheet (Version A2102).

What package type does the S10MCH use, and how is polarity identified?

The S10MCH uses the DO-214AB (SMC) surface-mount package, with matte tin-plated leads and UL 94V-0 compliant molding compound. Polarity is unambiguously identified by a visible cathode band on the body - the banded end corresponds to the cathode terminal (Lead 2), while the unbanded end is the anode (Lead 1). This marking aligns with JEDEC DO-214AB mechanical drawings and is verified in the Marking Diagram section of the official datasheet.