Taiwan Semiconductor Corporation SS1H6LSH

Overview

SS1H6LSH from Taiwan Semiconductor is a 1A, 60V AEC-Q101-qualified Schottky barrier rectifier in SOD-123HE package, featuring 0.70V max forward voltage at 1A/25°C, 30A peak surge current, and ultra-low 1.0µA reverse leakage at 25°C - deployed in automotive-grade DC-DC converters and compact AC-DC adapters.

For engineers reviewing the SS1H6LSH datasheet, SS1H6LSH pinout, SS1H6LSH application, or SS1H6LSH equivalent, key selection criteria include V_RRM=60V, I_F=1A continuous rating, thermal resistance R_θJA=72°C/W, AEC-Q101 qualification, and SOD-123HE footprint compatibility with high-density automated assembly.

Technical Context

This Schottky rectifier uses a single-die construction optimized for low forward voltage drop and fast switching in high-frequency power conversion. Its junction-to-ambient thermal resistance of 72°C/W and junction-to-lead value of 20°C/W support reliable operation up to 150°C junction temperature under sustained 1A load.

The device meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1, enabling reflow compatibility without baking. Cathode band polarity marking and matte tin-plated leads ensure unambiguous orientation and solderability per J-STD-002.

Key Specifications

Pinout & Package

Package: SOD-123HE - surface-mount plastic case, 0.021g weight, <0.85mm profile, UL 94V-0 molding compound, cathode indicated by band.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-1EQH06-M3/5AT and NSVR1H60HT1G, the SS1H6LSH delivers identical voltage/current ratings with AEC-Q101 validation and SOD-123HE's optimized thermal-mechanical balance - making it the default choice for cost-sensitive automotive and industrial designs needing proven reliability and manufacturability.

Availability

SS1H6LSH is available at Aetrix Electronics and suitable for automotive body electronics, USB-C PD adapters, and industrial PLC power supplies requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.

Supply support for SS1H6LSH 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 automotive, industrial, and consumer markets since 1979.

The SS1HxLSH family targets high-reliability surface-mount rectification in space- and thermally-constrained power conversion, emphasizing AEC-Q101 compliance, low-profile packaging, and consistent V_F/I_R performance across voltage grades.

FAQ

What is the maximum junction temperature rating for SS1H6LSH?

The SS1H6LSH has a maximum junction temperature (T_J) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet Version B2209. This rating applies across the full operating current range and enables use in under-hood automotive environments. Derating curves confirm 1A continuous current remains valid up to 125°C ambient when mounted on standard 1-in² copper pad, with SS1H6LSH maintaining functionality even at its 150°C thermal limit.

Is SS1H6LSH pin-compatible with other parts in the SS1HxLSH series?

Yes - all SS1HxLSH devices, including SS1H6LSH, share identical SOD-123HE package dimensions, pinout, and thermal pad layout. The only differences are V_RRM (60V for SS1H6LSH vs. 40V/100V/150V/200V for others) and corresponding forward voltage and leakage characteristics. This allows direct substitution within the same footprint when voltage requirements change, provided layout thermal design accommodates the specific V_F and I_R of each variant.

Does SS1H6LSH require special handling for moisture sensitivity?

No - SS1H6LSH is rated Moisture Sensitivity Level (MSL) 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/60% RH and subjected to standard lead-free reflow profiles without baking or dry-pack requirements. This eliminates moisture-related defects like popcorning during assembly and simplifies logistics for high-volume SMT lines using SS1H6LSH in automotive and industrial production.

What is the forward voltage specification for SS1H6LSH at elevated temperature?

The SS1H6LSH forward voltage increases with junction temperature: typical V_F rises from ~0.55V at 25°C to ~0.62V at 125°C under 1A DC conditions, as shown in Figure 8 of the Taiwan Semiconductor datasheet. The datasheet specifies only a maximum V_F of 0.70V at 25°C; no higher-temperature V_F max is guaranteed, so thermal design must ensure SS1H6LSH stays within its 150°C T_J limit to maintain predictable conduction loss.

Can SS1H6LSH be used in place of a standard PN rectifier in an existing design?

Yes - SS1H6LSH replaces standard PN rectifiers such as 1N400x or 1N581x in most 1A/60V applications, delivering lower V_F, faster switching, and reduced reverse recovery loss. However, designers must verify that the higher reverse leakage (1.0µA vs. <1nA for PN diodes) does not impact sensitive analog reference or low-power sleep modes, and that SS1H6LSH's lack of soft recovery does not increase EMI in noise-critical circuits.