Diodes Incorporated US1KSAFS-13

Overview

US1KSAFS-13 from Diodes Incorporated is a 1 A surface-mount ultra-fast rectifier with 1 A, 800 V, SMA-FS. It belongs in switching power paths where recovery time, surge margin, and package heating all influence converter stress.

For engineers reviewing the US1KSAFS-13 datasheet, US1KSAFS-13 pinout, US1KSAFS-13 application, or US1KSAFS-13 equivalent, the most useful checks are 1 A, 800 V, SMA-FS, high-voltage switching supplies, auxiliary rectifier rails.

Technical Context

US1KSAFS-13 is a fast recovery rectifier, so its reverse-recovery behavior is central to the circuit. It is a better fit for switching supplies than a slow standard rectifier when diode commutation creates loss or EMI.

Forward loss, recovery charge, surge current, and package temperature should be considered together, especially when US1KSAFS-13 is placed in snubber, clamp, auxiliary supply, or freewheel positions.

Key Specifications

Pinout & Package

US1KSAFS-13 uses SMA-FS. Pin mapping, polarity, or item format should be matched to the exact board, fixture, or procurement requirement before replacement.

Key Features

• US1KSAFS-13 is identified as a 1 A surface-mount ultra-fast rectifier.
• 800 V voltage or operating class for the relevant circuit stress.
• 1 A current or output class, subject to package and thermal derating.
• SMA-FS package or item format for procurement and assembly review.
• 75 ns recovery time class
• 30 A surge capability
• 1.85 V forward-voltage class
• -55°C to +150°C operation

Applications

Equivalent & Alternatives

When evaluating US1KSAFS-13 equivalent devices, compare voltage rating or operating class, current or output capability, package and footprint, pin mapping or polarity, thermal behavior, qualification suffix, lifecycle and sourcing status. A similar family name is not enough when the board depends on timing, leakage, firmware, optical output, or protection behavior.

Quality

US1KSAFS-13 should be sourced as original Diodes Incorporated material through traceable and controlled supply channels. Quality verification may include package inspection, marking verification, polarity or pinout review, solderability testing, leakage or continuity checks, and reel label verification, along with incoming inspection suited to 1 A surface-mount ultra-fast rectifier production, repair, or lifecycle procurement.

Availability

US1KSAFS-13 is available at Aetrix Electronics and suitable for high-voltage switching supplies, auxiliary rectifier rails, snubber-related diode paths, compact power adapters requiring 1 A, 800 V, SMA-FS in a controlled BOM or repair program.

Supply support may include scheduled delivery planning, volume procurement support, BOM continuity assistance, traceable sourcing management, and lifecycle availability coordination for manufacturers, repair teams, contract manufacturers, and engineering buyers managing 1 A surface-mount ultra-fast rectifier demand.

For production deployment, confirming package fit, pin mapping or polarity, electrical rating, temperature margin, lifecycle status, approved manufacturer identity, and sourcing continuity helps reduce qualification risk for US1KSAFS-13.

Manufacturer

Diodes Incorporated supplies rectifiers, Schottky diodes, SBR devices, protection products, transistors, MOSFETs, analog ICs, logic devices, and power-management semiconductors. US1KSAFS-13 belongs to the Diodes Incorporated product family identified by its prefix and package suffix.

FAQ

What is US1KSAFS-13 used for?

US1KSAFS-13 is used for high-voltage switching supplies, auxiliary rectifier rails, snubber-related diode paths. In those circuits, US1KSAFS-13 provides the 1 A surface-mount ultra-fast rectifier function with 1 A, 800 V, SMA-FS. The final selection should match the schematic role, operating stress, package footprint, and sourcing requirements.

What package or format does US1KSAFS-13 use?

US1KSAFS-13 uses SMA-FS. This package or item format affects footprint, soldering, thermal behavior, polarity or pin mapping, and incoming inspection. When replacing US1KSAFS-13, the package code should be checked as carefully as the headline electrical rating.

What are the key design checks for US1KSAFS-13?

Key design checks for US1KSAFS-13 include voltage margin, current or output load, temperature rise, pinout or polarity, package fit, lifecycle status. These checks help prevent a visually similar part from changing circuit behavior or assembly reliability.

Can US1KSAFS-13 be replaced by a similar part?

US1KSAFS-13 can be compared with similar family members only after electrical limits, package, orientation, qualification suffix, timing or leakage behavior, and approved-source rules are reviewed. A similar name alone is not enough because US1KSAFS-13 may carry package, program, bin, or lifecycle details.

Why source US1KSAFS-13 through Aetrix Electronics?

Sourcing US1KSAFS-13 through Aetrix Electronics supports traceable procurement, scheduled delivery planning, BOM continuity assistance, and lifecycle availability coordination. This is useful when US1KSAFS-13 is needed for production builds, repair lots, controlled alternates, or long-running equipment support.