Skip to main content
STMicroelectronics BAT48
STMicroelectronics

BAT48 Schottky Diode, 40V 350mA DO-35, Vf 750mV

MPNBAT48
End of Life

STMicroelectronics BAT48, Schottky diode, 40V Vr, 350mA Io, 750mV Vf at 200mA, Fast Recovery < 500ns, DO-204AH/DO-35 axial, -65°C to 125°C junction.

$0.49Ref. price · indicative, final on quote
BAT48 datasheet
PackagingDO-204AH, DO-35, Axial
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

BAT48 Technical Specifications
ParameterValue
Mounting typeThrough Hole
Voltage - DC reverse (Vr)40 V
Voltage - forward (Vf) (Max) @ if750 mV @ 200 mA
Current - reverse leakage @ vr25 µA @ 40 V
Current - average rectified350mA
Operating temperature - junction-65°C ~ 125°C
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageTape & Reel (TR); Cut Tape (CT)
TechnologySchottky
CaseDO-204AH, DO-35, Axial
Capacitance @ vr, f20pF @ 0V, 1MHz

Product details

750 mV forward drop at 200 mA — the conduction loss floor

The BAT48 is a small-signal Schottky rectifier from STMicroelectronics, rated 40 V reverse and 350 mA average forward current. Its forward voltage drop is specified at 750 mV maximum when carrying 200 mA. The Schottky technology gives it a fast recovery time under 500 ns above 200 mA, which matters when the diode switches at moderate frequency in a buck converter catch diode or a flyback clamp.

DO-35 axial — legacy footprint, still in production

The BAT48 comes in the DO-35 axial-lead through-hole package. Junction temperature range is -65°C to 125°C, which covers industrial and automotive cabin environments. The 20 pF capacitance at 0 V reverse bias keeps switching losses low in high-impedance signal paths.

Frequently asked questions

What is the forward voltage drop of BAT48 at 200 mA?

Design engineers need this value for power loss and thermal calculations.

Where can I buy BAT48 in stock and what is the price?

Sourcing buyers need immediate availability and cost to fill BOM lines.

What is the BAT48 equivalent or cross-reference?

Engineers and brokers need alternatives for second sourcing or when stock is low.

Is BAT48 RoHS compliant and lead-free?

Compliance is mandatory for many production lines and regulatory approvals.

What is the package and pinout of BAT48?

Design and procurement require package information for PCB layout and footprint matching.

Is BAT48 obsolete or still active?

Brokers and maintenance techs need lifecycle status to avoid shortages or plan replacements.