Taiwan Semiconductor Corporation SS23M

Overview

SS23M from Taiwan Semiconductor is a 2A, 30V Schottky barrier surface-mount rectifier in Micro SMA package, featuring VF ≤ 0.60 V at 2A/25°C, IR ≤ 150 µA at 30V/25°C, and TJ max = 150°C, used in compact DC-DC converters and AC-DC adapters.

For engineers reviewing the SS23M datasheet, SS23M pinout, SS23M application, or SS23M equivalent, key selection criteria include repetitive peak reverse voltage (30 V), forward surge capability (25 A), thermal resistance (R_θJL = 15 °C/W), and RoHS/halogen-free compliance for high-efficiency power conversion designs.

Technical Context

The SS23M employs a single-die Schottky junction optimized for low VF and fast switching, with cathode band polarity marking and matte tin-plated leads compliant with J-STD-002 solderability. Its Micro SMA case meets UL 94V-0 and JESD 201 Class 2 whisker requirements.

Thermally, it delivers R_θJL = 15 °C/W and R_θJA = 105 °C/W, enabling operation up to 150°C junction temperature. Reverse leakage is specified at 150 µA (25°C) and 15 mA (125°C), supporting stable performance across industrial ambient conditions.

Key Specifications

Pinout & Package

Package: Micro SMA - Surface-mount, single-anode/single-cathode configuration with cathode band marking; dimensions per TSC package outline drawing; UL 94V-0 molding compound; weight ≈ 0.006 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SS23H and SB230, the SS23M provides the best balance of low-profile packaging, verified Micro SMA footprint, and industry-leading R_θJL = 15 °C/W-making it ideal for next-generation compact power supplies where board height and thermal headroom are constrained.

Availability

SS23M is available at Aetrix Electronics and suitable for USB-C power adapters, industrial DC-DC converters, and LED driver power stages requiring stable component supply, consistent parametric performance, and full RoHS/halogen-free compliance.

Supply support for SS23M 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, serving global power management and protection markets since 1979.

The SS23M belongs to TSC's SS2xM Schottky rectifier family, engineered specifically for high-efficiency, low-profile AC-DC and DC-DC power conversion in consumer, industrial, and telecom applications.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for the SS23M?

The SS23M has a maximum repetitive peak reverse voltage (V_RRM) of 30 V, as specified in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version M2103). This rating defines the highest reverse voltage the device can block repeatedly without breakdown and is validated under standard test conditions (TA = 25°C). The SS23M is part of the SS22M–SS24M series, where SS22M = 20 V, SS23M = 30 V, and SS24M = 40 V.

Is the SS23M compatible with lead-free reflow soldering processes?

Yes, the SS23M is fully compatible with lead-free reflow soldering. Its matte tin-plated leads meet J-STD-002 solderability requirements, and its moisture sensitivity level is rated at Level 1 per J-STD-020-meaning no pre-bake is required prior to reflow. The device supports peak reflow temperatures up to 260°C, consistent with IPC/JEDEC J-STD-020D standards for Pb-free assembly.

What is the forward voltage (V_F) of the SS23M at 2A and 125°C?

The SS23M exhibits a typical forward voltage (V_F) of 0.55 V at 2A and 125°C, as stated in the Electrical Specifications table (Version M2103). This value is measured under pulsed conditions (PW = 0.3 ms) and reflects improved conduction efficiency at elevated junction temperatures-critical for maintaining efficiency in thermally stressed DC-DC converter outputs.

Does the SS23M have halogen-free and RoHS compliance documentation?

Yes, the SS23M is certified RoHS compliant and halogen-free per IEC 61249-2-21. This is explicitly stated in the FEATURES section of the official Taiwan Semiconductor datasheet (Version M2103), and the halogen-free status is verified through material composition testing. Compliance applies to the entire device-including molding compound, lead frame, and plating-ensuring suitability for environmentally regulated end markets.

What is the junction-to-lead thermal resistance (R_θJL) of the SS23M?

The SS23M has a typical junction-to-lead thermal resistance (R_θJL) of 15 °C/W, as published in the Thermal Performance section of the Taiwan Semiconductor datasheet (Version M2103). This low value enables effective heat transfer from the die directly to the PCB copper via the leads, reducing reliance on large thermal pads and supporting high-power density designs without external heatsinking.