Diodes Incorporated S1MSWFMQ-7

Overview

S1MSWFMQ-7 from Diodes Incorporated is a 1 A, 1000 V standard recovery rectifier in a low-profile SOD123F Type B surface-mount package. It is designed for high reverse breakdown voltage, compact assembly, and automotive-oriented rectification, reverse protection, and blocking applications.

For engineers reviewing the S1MSWFMQ-7 datasheet, S1MSWFMQ-7 pinout, S1MSWFMQ-7 application, or S1MSWFMQ-7 equivalent, this part is most relevant for automotive control modules, industrial input protection, compact auxiliary supplies, high-voltage blocking paths, reverse-polarity protection, and repair programs requiring 1000 V VRRM, 1 A rectified current, 25 A surge capability, SOD123F packaging, and AEC-Q101 qualification.

Technical Context

S1MSWFMQ-7 combines a high-voltage 1000 V standard rectifier die with a small SOD123F Type B package. That makes it useful where board space is limited but the diode must still block high reverse voltage in input, protection, or auxiliary rectifier positions.

Because it is a standard recovery part, S1MSWFMQ-7 should be applied carefully in high-frequency switching circuits. It is better suited to blocking, protection, and lower-frequency rectification than positions where reverse-recovery current directly controls converter efficiency or EMI.

Key Specifications

Pinout & Package

S1MSWFMQ-7 is a two-terminal SOD123F Type B rectifier. The cathode marking identifies the blocking/output terminal, while the opposite terminal is the anode. The low-profile package saves board height, but polarity and creepage-related layout checks remain important in high-voltage applications.

Key Features

• 1 A standard recovery rectifier in SOD123F Type B package.
• 1000 V repetitive reverse-voltage class.
• 1.1 V maximum forward voltage at 1 A.
• 25 A non-repetitive surge-current capability.
• 3 pF class capacitance for compact high-voltage layouts.
• Glass-passivated die construction.
• Low-profile package suited to space-constrained assemblies.
• AEC-Q101 qualified and PPAP capable for automotive-oriented designs.
• RoHS-compliant and Green device construction.

Applications

Equivalent & Alternatives

When evaluating S1MSWFMQ-7 equivalent devices, compare AEC-Q101 need, 1000 V rating, average and surge current, SOD123F footprint, recovery time, forward-voltage loss, leakage, package height, and cathode marking.

Quality

S1MSWFMQ-7 should be sourced as original Diodes Incorporated automotive-qualified rectifiers through traceable and controlled supply channels. Quality checks may include SOD123F body inspection, cathode marking review, reel label verification, solderability testing, forward-voltage screening, high-voltage leakage testing, AEC-Q101 and PPAP requirement review, and polarity inspection.

Availability

S1MSWFMQ-7 is available at Aetrix Electronics and suitable for automotive control modules, industrial protection inputs, compact auxiliary supplies, high-voltage blocking paths, reverse-polarity protection, lighting modules, and repair programs requiring a 1 A, 1000 V AEC-Q101 SOD123F rectifier.

Supply support may include scheduled delivery planning, volume procurement support, BOM continuity assistance, traceable sourcing management, and lifecycle availability coordination for automotive electronics suppliers, industrial equipment builders, contract manufacturers, repair groups, and control-module producers.

For production deployment, confirming the SOD123F Type B footprint, cathode orientation, 1000 V margin, standard recovery behavior, surge exposure, package height, AEC-Q101 need, PPAP expectations, soldering profile, and sourcing continuity helps reduce qualification risk.

Manufacturer

Diodes Incorporated supplies automotive-qualified rectifiers, Schottky devices, SBR products, protection components, MOSFETs, transistors, analog ICs, logic devices, and power-management semiconductors. S1MSWFMQ-7 belongs to the S1 SOD123F standard rectifier family with automotive-oriented qualification support.

FAQ

What is S1MSWFMQ-7 used for?

S1MSWFMQ-7 is used for compact high-voltage rectification, reverse protection, blocking, and control-board power paths. The 1 A current class, 1000 V reverse rating, and AEC-Q101 qualification make S1MSWFMQ-7 useful in automotive modules, industrial inputs, and auxiliary supplies.

What package does S1MSWFMQ-7 use?

S1MSWFMQ-7 uses a SOD123F Type B low-profile surface-mount package. This outline saves board space and height, but designers must still check pad layout, cathode marking, creepage-related spacing, solder profile, and thermal rise when using S1MSWFMQ-7 in high-voltage paths.

Is S1MSWFMQ-7 automotive qualified?

S1MSWFMQ-7 is intended for automotive-oriented applications requiring specific change control, with AEC-Q101 qualification and PPAP capability. This makes S1MSWFMQ-7 appropriate for many vehicle electronics supply chains, while final module qualification still depends on the complete circuit and manufacturing process.

Is S1MSWFMQ-7 suitable for high-frequency converters?

S1MSWFMQ-7 is a standard recovery rectifier, so it is not usually chosen for converter nodes where ultrafast recovery or Schottky behavior is required. It fits better in blocking, protection, and lower-frequency rectifier positions where the 1000 V rating is important.

What should be checked before replacing S1MSWFMQ-7?

Before replacing S1MSWFMQ-7, check reverse-voltage rating, average current, surge current, recovery speed, SOD123F footprint, package height, cathode orientation, leakage at high voltage, AEC-Q101 and PPAP needs, soldering process, and the approved automotive BOM requirements.