Microchip Technology MSC010SDA070B

Overview

MSC010SDA070B from Microchip is a zero-recovery silicon carbide Schottky diode rated for 700 V DC reverse voltage, 10 A DC forward current at 135 °C case temperature, and 1.8 V typical forward voltage at 10 A and 25 °C junction temperature. It serves as a high-efficiency freewheeling or anti-parallel diode in high-frequency PFC stages and motor drive inverters.

For engineers reviewing the MSC010SDA070B datasheet, MSC010SDA070B pinout, MSC010SDA070B application, or MSC010SDA070B equivalent, key selection criteria include its 700 V blocking capability, absence of reverse recovery charge, low 200 µA max leakage at 700 V/25 °C, 1.3–1.8 °C/W junction-to-case thermal resistance, and TO-247 package suitability for industrial power modules.

Technical Context

The MSC010SDA070B is a unipolar SiC Schottky barrier diode with no minority-carrier storage, eliminating reverse recovery time and associated switching losses. Its static characteristics are defined across –55 °C to 175 °C operating junction temperature, with avalanche-energy rating (EAS = 100 mJ) enabling robustness in inductive switching transients.

Thermal performance is governed by a low RθJC of 1.30–1.80 °C/W and maximum case temperature limits that scale forward current from 24 A at 25 °C to 8 A at 145 °C. Capacitance varies nonlinearly with reverse bias-46 pF at 400 V, 54 pF at 200 V, and 353 pF at 1 V-supporting snubber design and EMI control in hard-switched topologies.

Key Specifications

Pinout & Package

The MSC010SDA070B is housed in a standard TO-247 package with three terminals: two cathode leads (Terminal 1 and Terminal 3) and one anode lead (Terminal 2), enabling dual-cathode layout for parallel mounting or Kelvin sensing configurations.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar SiC Schottky diode applications.

Compared with C3D10070H and STPSC1007D, the MSC010SDA070B delivers superior thermal management via dual-cathode TO-247 packaging and lowest VF among 700 V/10 A SiC diodes, making it optimal for high-power-density, high-reliability industrial inverters and PFC stages.

Availability

MSC010SDA070B is available at Aetrix Electronics and suitable for power factor correction, motor drive inverters, snubber/clamp circuits, and isolated DC-DC converters requiring stable component supply and long-term industrial lifecycle support.

Supply support for MSC010SDA070B 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

Microchip Technology Inc. is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, timing solutions, and power semiconductors, with global design, manufacturing, and support infrastructure.

The MSC010SDA070B belongs to Microchip's silicon carbide Schottky diode product line, engineered specifically for high-voltage, high-frequency power conversion systems demanding zero reverse recovery, high-temperature reliability, and low EMI.

FAQ

What is the maximum continuous forward current rating for MSC010SDA070B at 135 °C case temperature?

The MSC010SDA070B is rated for 10 A DC forward current at TC = 135 °C, as specified in Table 1-1 of the DS-00003878A datasheet. This rating reflects thermal derating from its 24 A rating at TC = 25 °C and ensures safe operation in industrial environments with elevated ambient temperatures. The MSC010SDA070B maintains this current capability without exceeding its 175 °C maximum junction temperature limit.

Does MSC010SDA070B have reverse recovery charge (Qrr), and how does it affect switching behavior?

The MSC010SDA070B is a silicon carbide Schottky diode and exhibits no reverse recovery charge (Qrr ≈ 0). Unlike silicon PN diodes, it lacks minority carrier storage, so there is no tail current during turn-off. This eliminates switching losses in the diode itself and reduces voltage overshoot and EMI in hard-switched converters. The MSC010SDA070B's total capacitive charge (QC = 27 nC at VR = 400 V) governs its turn-off behavior instead.

What is the junction-to-case thermal resistance (RθJC) specification for MSC010SDA070B, and why does it matter?

The MSC010SDA070B has a junction-to-case thermal resistance of 1.30–1.80 °C/W, measured per Table 1-2 of the datasheet. This low value enables efficient heat transfer from the SiC die to the heatsink through the TO-247 package base. It directly determines the allowable power dissipation at a given case temperature-e.g., 36 W at TC = 110 °C-and makes the MSC010SDA070B suitable for high-power-density designs where thermal headroom is constrained.

Can MSC010SDA070B be used as a direct replacement for silicon fast recovery diodes in existing PFC designs?

The MSC010SDA070B can replace silicon fast recovery diodes in PFC boost stages, but requires validation of gate-drive timing, snubber values, and thermal interface due to its zero Qrr and lower VF. While it offers superior efficiency and EMI performance, the MSC010SDA070B's different capacitance profile (e.g., 46 pF at 400 V) may necessitate minor circuit tuning. Layout must accommodate the TO-247 package and dual-cathode terminals.

What is the avalanche-energy rating (EAS) of MSC010SDA070B, and under what conditions is it tested?

The MSC010SDA070B is rated for 100 mJ single-pulse avalanche energy (EAS), tested per Table 1-1 with starting junction temperature TJ = 25 °C and peak inductive current IL = 10 A. This rating confirms its ability to absorb inductive switching energy without failure-critical in motor drive freewheel paths and unclamped flyback topologies. The MSC010SDA070B's EAS performance is intrinsic to its SiC material properties and is not dependent on external circuit protection.