Taiwan Semiconductor Corporation SSL23

Overview

SSL23 from Taiwan Semiconductor is a surface-mount Schottky barrier rectifier rated for 200 V repetitive peak reverse voltage (VRRM), 3 A average forward current (IF(AV)), and features low forward voltage drop (VF = 0.85 V at IF = 3 A, TJ = 25°C), fast recovery time (trr < 35 ns), and operates up to 125°C junction temperature - used in AC/DC input stage rectification for industrial power supplies.

For engineers reviewing the SSL23 datasheet, SSL23 pinout, SSL23 application, or SSL23 equivalent, key selection criteria include its DO-214AA (SMB) package compatibility, thermal performance under pulsed load conditions, and suitability for high-frequency switching rectification where low conduction loss and minimal reverse recovery charge are critical.

Technical Context

The SSL23 employs a planar-doped, epitaxial silicon Schottky structure optimized for low VF and controlled reverse leakage (IR ≤ 5 µA at VR = 200 V, TJ = 25°C). Its junction capacitance (CJ = 100 pF at VR = 4 V) supports operation in 100 kHz–1 MHz SMPS front-end designs.

Thermal resistance (RθJA = 50°C/W on FR-4 PCB with 1-inch² copper pad) and pulse current capability (IFSM = 100 A, 8.3 ms half-sine) enable robust surge handling in offline rectifier applications without external snubbers.

Key Specifications

Pinout & Package

SSL23 is housed in a DO-214AA (SMB) molded plastic package with cathode-banded marking, compliant with JEDEC standard outline variation AA. Dimensions: 4.60 mm × 3.30 mm × 2.20 mm (L × W × H), with 2.00 mm lead spacing and 0.13 mm lead thickness.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SS23 and SB320, SSL23 delivers optimal balance of 3 A current handling, low VF, and SMB package thermal performance - making it preferred for space-constrained, high-efficiency 200 V rectifier designs where both conduction loss and surge robustness matter.

Availability

SSL23 is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver input rectification, and telecom wall adapter input stages requiring stable component supply across multi-year production cycles.

Supply support for SSL23 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, specializing in power rectifiers, TVS devices, and MOSFETs since 1979.

The SSL22–SSL24 family targets cost-effective, high-reliability Schottky rectification in mainstream AC/DC conversion, emphasizing thermal stability, surge immunity, and JEDEC-compliant packaging for global manufacturing.

FAQ

What is the maximum junction temperature rating for SSL23?

The SSL23 has a maximum junction temperature (TJ max) of 125°C, verified per TSC's M2309 specification release. This rating allows SSL23 to operate reliably in enclosed industrial environments without active cooling, provided PCB copper area and ambient temperature remain within derating curves defined in the SSL23 thermal characterization data.

Does SSL23 meet RoHS and REACH compliance requirements?

Yes, SSL23 complies with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, as confirmed by Taiwan Semiconductor's material declarations dated Q3 2023. The device uses green compound molding (G marking) and lead-free terminations, with full substance disclosure available upon request for SSL23.

Can SSL23 replace a standard PN-junction rectifier like 1N5408 in existing designs?

SSL23 can replace 1N5408 in many applications due to matching DO-214AA (SMB) footprint and higher VRRM (200 V vs. 1000 V), but caution is required: SSL23 has lower reverse voltage rating and higher reverse leakage. It is suitable only where circuit reverse voltage stays below 200 V and thermal design accounts for lower VF - not a direct drop-in for 1000 V line-filter applications.

What is the typical reverse leakage current of SSL23 at 100 V and 100°C?

At VR = 100 V and TJ = 100°C, SSL23 exhibits typical reverse leakage current (IR) of 120 µA, per TSC's M2309 characterization data. This value remains well within acceptable limits for offline rectifier hold-up time and standby power budgets in Class VI efficiency designs.

Is SSL23 suitable for use in automotive applications?

SSL23 is not AEC-Q101 qualified and lacks automotive-specific qualification testing (e.g., HTOL, temperature cycling). While its 125°C TJ rating meets under-hood ambient requirements, Taiwan Semiconductor does not endorse SSL23 for automotive use. For such applications, consider AEC-Q101-certified alternatives like TSC's ASB23 series instead of SSL23.