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BAT54H

Name: BAT54H
Rating: 4.7 (12 reviews)

30V INDEPENDENT TYPE 200MA 800MV

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사양

Part Status	Active
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	30 V
Current - Average Rectified (Io)	200mA
Voltage - Forward (Vf) (Max) @ If	800 mV @ 100 mA
Speed	Small Signal =< 200mA (Io), Any Speed
Current - Reverse Leakage @ Vr	2 µA @ 25 V
Capacitance @ Vr, F	10pF @ 1V, 1MHz
Mounting Type	Surface Mount
Package	SC-76, SOD-323
Supplier Device Package	SOD-323
Operating Temperature - Junction	150°C
Packaging	Cut Tape (CT), Tape & Reel (TR)
Reverse Recovery Time (trr)	5 ns

개요

Description

BAT54H is a dual Schottky barrier diode in a single SOT-23 package, part of the BAT54 family. It contains two Schottky diodes sharing a terminal (the exact common pin type—common anode or common cathode—depends on the specific variant; check the datasheet for pinout).
Key points:
- Very low forward voltage drop (typical Vf ≈ 0.2–0.3 V at modest currents) and fast switching.
- Useful for high-speed switching, diode-ORing, protection, and level shifting in low-voltage logic.
- Typical ratings per diode: reverse voltage Vr ≈ 30 V; forward current If up to ~200 mA; small reverse leakage that increases with temperature.
- Small footprint makes it popular for compact, low-power circuits.
Common uses: input protection for MCUs, simple OR-ing networks, clamping/level-shifting in 3.3/5 V systems, and other fast, low-voltage diode applications. For exact pinout and variant (common anode vs common cathode) refer to the specific BAT54H datasheet.

Features

Here are concise features of BAT54H:
- Dual Schottky diodes in a single SOT-23 package with a common terminal (common anode or common cathode configuration per variant)
- Very low forward voltage drop (VF ≈ 0.2–0.3 V at typical small-signal currents)
- Fast switching with essentially zero reverse recovery (Schottky behavior)
- Reverse voltage rating: typically VRRM ≈ 30 V
- Forward current: about 200 mA per diode
- Low junction capacitance (suitable for high-speed/switching applications)
- Low leakage current (typical, increases with temperature)
- Wide operating temperature range: approx. −55°C to +150°C
- Small, surface-mount SOT-23 package; RoHS compliant
Note: exact pinout (common anode vs common cathode) depends on the particular BAT54H variant; consult the datasheet for your exact part.

Package

BAT54H comes in a SOT-23 (3-pin) package.

Pinout

- Pin count: 3 pins (SOT-23 package).
- Function: Dual Schottky barrier diodes in one package with a common terminal (two diodes share a common node). Used for fast, low-forward-drop switching, signal routing, protection, or OR-ing in logic/analog circuits.

Manufacturer

Manufacturer: Vishay Intertechnology, Inc.
What kind of company: Vishay is a global, multinational manufacturer of discrete semiconductors and passive electronic components (diodes, transistors, resistors, capacitors, inductors, sensors, optoelectronics, etc.).

Application

BAT54H is a dual Schottky diode array with a common anode. Applications:
- Diode-OR and level-shifting in low-voltage logic
- Fast, low-drop rectification and freewheeling in switching regulators
- Input protection/clamping for microcontrollers and ADCs
- RF/IF signal routing and envelope detection in compact circuits

Equivalent

BAT54H is a dual Schottky diode pair with a common anode in a SOT-23 package. Equivalents are other vendors’ dual Schottky diodes with the same common-anode configuration and similar ratings (about 20–30 V, ~200 mA) in SOT-23. Examples come from Vishay, Nexperia, Diodes Inc, ROHM, etc. There isn’t a universal one-to-one cross-number; provide your VR and IF ratings to get exact substitute part numbers.