Taiwan Semiconductor Corporation SF1603G

Overview

SF1603G from Taiwan Semiconductor is a 16A, 150V super fast recovery rectifier diode in TO-220AB package, featuring 35ns reverse recovery time, 0.975V forward voltage at 8A/25°C, and dual-die configuration for high-current freewheeling and switching-mode power conversion.

For engineers reviewing the SF1603G datasheet, SF1603G pinout, SF1603G application, or SF1603G equivalent, key selection criteria include V_RRM = 150V, I_F = 16A, t_rr = 35ns, R_θJC = 1.5°C/W, and AEC-Q101 qualification availability (SF1603GH variant), critical for automotive DC-DC and industrial SMPS design.

Technical Context

The SF1603G implements a super fast recovery silicon PN junction with optimized carrier lifetime control to achieve t_rr = 35ns under IF = 0.5A / IR = 1.0A / I_rr = 0.25A test conditions, enabling high-frequency operation up to 100kHz in hard-switched topologies.

Its dual-die TO-220AB construction supports parallel conduction paths, delivering rated 16A average forward current with 125A non-repetitive surge capability (8.3ms half-sine) and thermal resistance of 1.5°C/W from junction to case - essential for thermally constrained power stage layouts.

Key Specifications

Pinout & Package

TO-220AB package: 3-terminal through-hole outline with isolated tab (cathode-connected tab), matte tin-plated leads compliant with J-STD-002, UL 94V-0 molding compound, and 0.56 N·m maximum mounting torque.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH1602CT and IXYS MUR1620CT, the SF1603G offers optimal balance of 150V rating, 35ns recovery, and AEC-Q101 availability in TO-220AB - making it preferred for cost-sensitive automotive and industrial 48V systems where exact voltage margin and qualification matter.

Availability

SF1603G is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS outputs, and UPS inverter stages requiring stable component supply, long-term lifecycle support, and RoHS/halogen-free compliance.

Supply support for SF1603G 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 SF160xG series was designed specifically for high-efficiency, high-reliability power conversion in automotive and industrial environments - emphasizing low V_F, fast t_rr, and robust thermal performance in standardized TO-220AB packaging.

FAQ

What is the maximum junction temperature rating for SF1603G?

The SF1603G has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table. This allows operation in under-hood automotive environments and high-ambient industrial enclosures when mounted with appropriate thermal interface and heatsinking. The SF1603G maintains specified electrical parameters up to this limit, with derating applied above T_C = 100°C per the forward current derating curve.

Is SF1603G pin-compatible with SF1603GH?

Yes, SF1603G and SF1603GH share identical TO-220AB mechanical footprint, pinout, and electrical specifications - the only difference is AEC-Q101 qualification testing performed on SF1603GH. Both parts use the same dual-die die attach, leadframe, and marking layout; no PCB or assembly changes are required when upgrading to the qualified version.

What is the reverse recovery charge (Q_rr) value for SF1603G?

The SF1603G datasheet does not specify Q_rr directly; however, based on its measured t_rr = 35ns under IF = 0.5A / IR = 1.0A / I_rr = 0.25A conditions and typical diode physics, Q_rr is estimated at ≤25nC. For precise Q_rr-based loss calculation, engineers should refer to the SF1603G characterization curves or contact Taiwan Semiconductor for application-specific test data.

Does SF1603G have a common-cathode or common-anode configuration?

The SF1603G uses a dual-die common-cathode configuration in TO-220AB package: both anodes are isolated (Leads 1 and 3), while the cathodes are internally joined and connected to Lead 2 and the metal tab. This configuration supports independent anode routing in dual-output or interleaved converter designs while sharing a single thermal and electrical cathode path.

Can SF1603G replace SF1602G in an existing design?

Yes, SF1603G can directly replace SF1602G (100V) in most cases, as both share identical package, pinout, I_F, I_FSM, t_rr, and thermal specs - the only upgrade is V_RRM from 100V to 150V. This provides additional voltage margin against transients and simplifies BOM consolidation across 12V and 24V systems without layout or thermal changes.