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Manufacturer model / selection entry

1N4148WS SOD-323 Switching Diode – Brands & RFQ

1N4148WS is commonly offered as a compact SOD-323 switching diode, but each manufacturer’s dimensions, land pattern, electrical limits, marking and reel code must remain separate.

Multiple manufacturersfast switching diode familyPublication gate passed

Buyer and engineer answers

What must be established before ordering

Statements below are scoped to the named manufacturer source. Commercial availability is deliberately separate.

Technical answer

SOD-323 package

Toshiba identifies its 1N4148WS as SOD-323 (USC), two-pin surface mount, with a nominal body size of 2.5 × 1.25 × 0.9 mm. Other brands require their own drawings.

SOD-323 dimensions
Technical answer

Brand-specific electrical table

Reverse voltage, current, forward voltage, capacitance and recovery values are published per brand and test condition; this page does not combine the most favorable values.

electrical table by brand
Technical answer

Ordering details

Marking and tape/reel suffixes are manufacturer-specific. A quote must name the exact brand and complete ordering code.

reel suffixmarking

Publication safeguard

The claim boundary travels with the page.

Do not say W and WS differ only in size; ratings and test conditions must be compared per manufacturer.

Published exact parts5
Evidence-backed families2

Procurement FAQ

Questions this exact page answers

Compatibility answers remain conditional where the source evidence does not establish a direct replacement.

Is 1N4148WS SOD-323?

The reviewed Toshiba part is SOD-323 (USC); verify the package code and drawing for the manufacturer being quoted.

Can WS replace W?

Not by suffix alone. Their package and land-pattern differences can require a PCB change, and electrical values must also be compared.

What reel suffix should I order?

Use the complete manufacturer order code stated on the quotation; there is no universal reel suffix across brands.

Evidence-cleared exact records

Choose the manufacturer and complete code

Each link is a separate Passed catalog record with valid datasheet evidence.

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1N4148 package and brand guideW vs WS vs WT comparison
1N4148WS SOD-323 Switching Diode – Brands & RFQ | MPNHarbor