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Infineon Technologies BAV 70 B5003 — Discrete Semiconductors

BAV 70 B5003 dual common-cathode switching diode, 80 V

MPNBAV 70 B5003
Obsolete

Infineon BAV 70 B5003 dual common-cathode switching diode, 80 V Vr, 200 mA Io per diode, 4 ns trr, SOT-23-3 package, Tape & Reel.

$0.3200Ref. price · indicative, final on quote
Infineon Technologies BAV 70 B5003 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BAV 70 B5003 specifications
ParameterValue
MountingSurface Mount
Voltage - DC reverse (Vr)80 V
Voltage - forward (Vf) (Max) @ if1.25 V @ 150 mA
Current - reverse leakage @ vr150 nA @ 70 V
Current - average rectified (Io) (per diode)200mA (DC)
Operating temperature - junction150°C (Max)
SpeedSmall Signal =< 200mA (Io), Any Speed
PackageTape & Reel (TR)
TechnologyStandard
CaseTO-236-3, SC-59, SOT-23-3
Diode configuration1 Pair Common Cathode
Reverse recovery time4 ns

Product details

Dual switching diode in SOT-23 — 4 ns trr, common-cathode pair

This makes it suited for high-speed signal switching, clamping, and low-current rectification in 24 V or 48 V bus environments where fast turn-off is needed to reduce switching losses.

The 80 V Vr(max) provides margin above typical rails. The 4 ns reverse recovery time limits the reverse current spike during commutation. The 200 mA average current per diode is a signal-level rating.

For new designs or BOM fills, the standard BAV70 (common-cathode dual diode, same SOT-23 footprint, same 80 V / 200 mA / 4 ns ratings) is the functional replacement — it shares the same base product number and pinout.

Frequently asked questions

Is BAV 70 B5003 obsolete and what are my alternatives?

Yes, the BAV 70 B5003 is marked obsolete. The direct alternative is the standard BAV70 dual common-cathode diode, which has the same SOT-23 footprint, 80 V reverse voltage, 200 mA current rating, and 4 ns trr. The BAV70 is active and widely stocked.

Does BAV 70 B5003 have the same pinout as BAV70?

Yes. The BAV 70 B5003 and the standard BAV70 share the same base product number (BAV70) and the same common-cathode dual-diode configuration in the SOT-23-3 package. The pinout is identical.

Can I use BAV99 as a substitute for BAV 70 B5003?

No, not as a direct drop-in. The BAV99 is a series-connected dual diode (common anode for one, common cathode for the other), whereas the BAV 70 B5003 is a common-cathode pair. The pinout and circuit function differ. For a common-cathode replacement, use the standard BAV70.