Taiwan Semiconductor Corporation S1JLS

Overview

S1JLS from Taiwan Semiconductor is a 600 V, 1.2 A standard surface-mount silicon rectifier diode in SOD-123HE package, optimized for DC-DC converters and switching-mode power supplies with high surge capability (50 A IFSM) and low forward voltage (1.3 V max at 1.2 A). It operates across -55°C to +175°C junction temperature range and features moisture sensitivity level 1 per J-STD-020.

For engineers reviewing the S1JLS datasheet, S1JLS pinout, S1JLS application, or S1JLS equivalent, key selection criteria include its 600 V repetitive peak reverse voltage, 1.2 A average forward current rating, 50 A non-repetitive surge capability, thermal resistance (R_θJL = 46°C/W), and SOD-123HE compact footprint for space-constrained power stages.

Technical Context

The S1JLS is a single-die, planar-passivated silicon PN junction rectifier designed for general-purpose and medium-voltage switching applications. Its 600 V V_RRM and 1.3 V V_F (max at 1.2 A, 25°C) reflect a balanced trade-off between blocking capability and conduction loss.

Thermal performance is defined with R_θJL = 46°C/W and R_θJA = 86°C/W on a 5 mm × 5 mm Cu pad PCB, supporting reliable operation up to 175°C junction temperature. Reverse leakage remains ≤5 µA at 25°C and ≤150 µA at 125°C under rated V_R.

Key Specifications

Pinout & Package

Package: SOD-123HE - Surface-mount plastic package with matte tin-plated leads, UL 94V-0 molding compound, polarity indicated by cathode band, weight ≈0.022 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MUR160 and VS-1N4937-M3/54, the S1JLS delivers higher average current (1.2 A vs. 1.0 A) in a compact SMT package with superior surge robustness (50 A vs. 30–40 A), making it optimal for modern high-density, automated power supply designs requiring 600 V blocking.

Availability

S1JLS is available at Aetrix Electronics and suitable for DC-DC converters, switching-mode inverters, and industrial sensor power supplies requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for S1JLS 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with global distribution and AEC-Q200 qualified offerings.

The S1JLS belongs to TSC's S1xLS family of standard rectifiers engineered for cost-effective, high-reliability AC/DC and DC/DC power conversion in industrial, computing, and consumer applications.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) of the S1JLS?

The S1JLS has a maximum repetitive peak reverse voltage (V_RRM) of 600 V, as specified in the absolute maximum ratings table. This value is confirmed across all official Taiwan Semiconductor documentation for the S1JLS variant and defines the highest reverse voltage the diode can block repeatedly without breakdown. The S1JLS is part of the S1DLS–S1MLS series where 'J' explicitly denotes the 600 V rating.

What is the forward voltage (V_F) specification for the S1JLS at rated current?

The S1JLS exhibits a maximum forward voltage (V_F) of 1.3 V when conducting 1.2 A at 25°C junction temperature, per the electrical specifications table. This parameter is measured under pulsed conditions (PW = 0.3 ms) and directly impacts conduction losses in power stage design. The typical V_F is lower, but 1.3 V is the guaranteed upper limit used for worst-case thermal analysis of the S1JLS.

Does the S1JLS have a defined surge current rating, and what test condition applies?

Yes, the S1JLS has a peak forward surge current (I_FSM) rating of 50 A. This is specified for an 8.3 ms single half-sine wave superimposed on rated load, per JEDEC standards. The rating reflects the device's ability to survive short-duration overloads such as inrush currents in power supplies - a key reliability metric validated for the S1JLS in Taiwan Semiconductor's H2103 datasheet revision.

What package type does the S1JLS use, and what are its key mechanical attributes?

The S1JLS uses the SOD-123HE surface-mount package, featuring matte tin-plated leads compliant with J-STD-002 solderability, UL 94V-0 flammability-rated molding compound, and polarity indicated by a cathode band. Its approximate weight is 0.022 g, and it meets JESD201 Class 2 whisker resistance - all confirmed mechanical data for the S1JLS in the official Taiwan Semiconductor mechanical data section.

Is the S1JLS RoHS and halogen-free compliant?

Yes, the S1JLS is RoHS compliant and halogen-free in accordance with IEC 61249-2-21, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. This compliance applies specifically to the S1JLS variant and is verified for the SOD-123HE packaging configuration used for this part number.