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Infineon Technologies BAS 40-05 B5003 — Discrete Semiconductors
Infineon Technologies

Infineon BAS 40-05 B5003 Schottky Diode, 40 V

MPNBAS 40-05 B5003
Obsolete

Infineon BAS 40-05 B5003 Schottky diode, 1 pair common cathode, 40 V reverse voltage, 120 mA average rectified current per diode, 100 ps reverse recovery time, SOT-23 surface mount package.

BAS 40-05 B5003 datasheet
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MOQ1 pcs
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Specifications

BAS 40-05 B5003 Technical Specifications
ParameterValue
Diode typeSchottky
Mounting typeSurface Mount
Voltage - DC reverse (Vr)40 V
Voltage - forward (Vf) (Max) @ if1 V @ 40 mA
Current - reverse leakage @ vr1 µA @ 30 V
Current - average rectified (Io) (per diode)120mA (DC)
Operating temperature - junction150°C(Max)
SpeedSmall Signal =< 200mA (Io), Any Speed
PackageTape & Reel (TR); Cut Tape (CT)
CaseTO-236-3, SC-59, SOT-23-3
Diode configuration1 Pair Common Cathode
Reverse recovery time100 ps

Product details

The BAS 40-05 B5003: Schottky diode with a 1 pair common cathode configuration, rated for 40 V reverse voltage and 120 mA average rectified current per diode. The 100 ps reverse recovery time suits high-speed switching applications.

Infineon lists the BAS 40-05 B5003 as obsolete. That means no factory orders, no last-time-buy window — the only channel is surplus inventory or broker stock.

Common cathode pair — why it matters for layout

The 1 pair common cathode arrangement means both anodes share a single cathode node, reducing trace length and parasitic inductance in high-speed switching loops. For a flyback clamp or a dual-diode OR-ing circuit, this one-package solution saves board area versus two discrete SOT-23 diodes and simplifies the routing.

Frequently asked questions

What is the replacement for BAS 40-05 B5003?

Infineon does not list a direct official replacement. The base product number BAS 40 covers active variants in the same SOT-23 package with the same common cathode configuration — check those for a functional equivalent. For an exact pin-compatible drop-in, you will need to source the BAS 40-05 B5003 through surplus channels.

Is BAS 40-05 B5003 a common cathode Schottky diode?

Yes, it is a 1 pair common cathode Schottky diode — both anodes share a single cathode node inside the SOT-23 package.