Taiwan Semiconductor Corporation SS215L

Overview

SS215L from Taiwan Semiconductor is a 2 A, 150 V Schottky barrier surface-mount rectifier in Sub SMA package, featuring 0.95 V forward voltage at 2 A and 100 µA reverse leakage at 25°C, used in high-efficiency DC-DC converters and AC-DC adapters.

For engineers reviewing the SS215L datasheet, SS215L pinout, SS215L application, or SS215L equivalent, key selection factors include its 150 V repetitive peak reverse voltage, 50 A non-repetitive surge rating, 125–150°C junction temperature range, and Sub SMA thermal performance (R_θJL = 17°C/W).

Technical Context

The SS215L operates as a single-die Schottky rectifier with guard ring overvoltage protection and JESD201 Class 2 whisker resistance. Its low VF (0.95 V) and low IR (100 µA @ 25°C) support high-conversion efficiency in compact power supplies.

Thermal design is enabled by R_θJA = 75°C/W and R_θJL = 17°C/W, with moisture sensitivity level 1 per J-STD-020 and UL 94V-0 molding compound - critical for automated SMT assembly and long-term reliability in industrial-grade SMPS.

Key Specifications

Pinout & Package

Package: Sub SMA - surface-mount, molded plastic case with matte tin-plated leads, polarity indicated by cathode band, weight ≈ 0.019 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SS215L, SB2150-E3/54 offers marginally better conduction efficiency, while SS215HE3/54 trades 100 µA lower leakage for slightly higher reverse current - both require no PCB changes and support identical thermal management.

Availability

SS215L is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and DC-DC converters requiring stable component supply across industrial, computing, and consumer electronics programs.

Supply support for SS215L 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 industrial markets since 1979.

The SS215L belongs to TSC's SS2xL Schottky rectifier family, engineered for high-efficiency, space-constrained power conversion where low VF, robust surge capability, and reliable SMT manufacturability are essential.

FAQ

What is the maximum junction temperature rating for the SS215L?

The SS215L has a maximum junction temperature (T_J) rating of 150°C, confirmed in the Absolute Maximum Ratings table. This allows sustained operation in high-ambient environments when paired with appropriate PCB copper area and airflow. The SS215L datasheet specifies this limit applies across its full voltage range and is validated per JEDEC test conditions.

Does the SS215L have a guard ring, and what does it do?

Yes, the SS215L incorporates a guard ring structure explicitly stated in its FEATURES list. This design feature prevents premature edge breakdown under high reverse voltage stress, enhancing reliability during line transients or inductive switching events. It directly contributes to the device's ability to sustain its rated 150 V V_RRM in real-world power supply applications.

Is the SS215L compatible with lead-free reflow soldering processes?

Yes, the SS215L 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 Level 1 per J-STD-020 - meaning it can be stored indefinitely at ambient conditions and placed directly into reflow without baking.

What is the reverse leakage current of the SS215L at 100°C?

The SS215L exhibits ≤5 mA reverse leakage current (I_R) at rated V_R = 150 V and junction temperature of 100°C, as specified in the Electrical Specifications table. This value is measured under pulse test conditions (PW = 30 ms) and reflects realistic behavior in thermally stressed operation, such as in enclosed power adapters.

How does the SS215L's forward voltage compare to lower-voltage variants in the SS2xL family?

The SS215L has a typical forward voltage of 0.95 V at 2 A and 25°C, which is higher than lower-voltage variants (e.g., SS22L: 0.50 V, SS25L: 0.70 V) due to increased barrier height needed for 150 V blocking. This trade-off between reverse voltage capability and conduction loss is inherent to Schottky rectifier design and is documented across the SS2xL family datasheet.