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Vishay SBLB1640CTHE3_B/I — Discrete Semiconductors

Vishay SBLB1640CTHE3_B/I Schottky Rectifier, 8A, 40V

MPNSBLB1640CTHE3_B/I
End of Life

Vishay Automotive, AEC-Q101 series Schottky rectifier, SBLB1640CTHE3_B/I, dual common-cathode configuration, 8 A per diode, 40 V reverse, 550 mV forward drop, TO-263-3 D²PAK (TO-263AB), surface mount.

$1.66Ref. price · indicative, final on quote
Vishay SBLB1640CTHE3_B/I datasheet (PDF)
PackagingTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
SeriesAutomotive, AEC-Q101
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SBLB1640CTHE3_B/I specifications
ParameterValue
SeriesAutomotive, AEC-Q101
Diode typeSchottky
MountingSurface Mount
Voltage - DC reverse (Vr)40 V
Voltage - forward (Vf) (Max) @ if550 mV @ 8 A
Current - reverse leakage @ vr500 µA @ 40 V
Current - average rectified (Io) (per diode)8A
Operating temperature - junction-40°C ~ 125°C
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTape & Reel (TR); Cut Tape (CT)
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Diode configuration1 Pair Common Cathode

Product details

Dual 8 A common-cathode Schottky in D²PAK

The SBLB1640CTHE3_B/I: Forward drop is specified at 550 mV max at 8 A — the typical conduction loss per diode at full load is 4.4 W, so the D²PAK tab must be soldered to a sufficient copper area to keep the junction below the 125 °C absolute maximum. Reverse leakage is 500 µA at 40 V — this is the worst-case figure at rated Vr; actual leakage at lower reverse bias is lower, but the spec matters for standby power budgets in always-powered automotive modules.

Automotive AEC-Q101 — under-hood and cabin grade

The automotive series designation means the parts are PPAP-capable and manufactured on an IATF 16949 line.

Active lifecycle — sourcing posture

Reel and cut-tape packaging options are available, with the D²PAK footprint compatible with standard reflow profiles.

Frequently asked questions

What is SBLB1640CTHE3_B/I's speed classification?

The rectifier is classified as Fast Recovery, with a recovery time of ≤500 ns at forward currents above 200 mA (Io). This is typical for Schottky diodes — the Schottky barrier inherently provides fast switching without stored charge, so recovery time is not a limiting factor in most automotive and power-supply applications.

What package and mounting does SBLB1640CTHE3_B/I use?

The device is supplied in a TO-263-3 (D²PAK) surface-mount package with 2 leads plus a tab (the third terminal is the tab, electrically common to the cathode pair). The supplier device package is TO-263AB. The tab must be soldered to the PCB copper pour for thermal management.