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BZX84B4V7LT1G

Name: BZX84B4V7LT1G
Rating: 4.7 (12 reviews)

DIODE ZENER 4.7V 250MW SOT23-3

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製造商。部分 #BZX84B4V7LT1G
包 TO-236-3, SC-59, SOT-23-3
資料表 BZX84B4V7LT1G DataSheet
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規格

Supplier	onsemi
Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
Voltage-Zener(Nom)(Vz)	4.7 V
Tolerance	±1.91%
Power-Max	250 mW
Impedance(Max)(Zzt)	80 Ohms
Current-ReverseLeakage@Vr	3 µA @ 2 V
Voltage-Forward(Vf)(Max)@If	900 mV @ 10 mA
OperatingTemperature	-65°C ~ 150°C (TJ)
MountingType	Surface Mount
Package/Case	TO-236-3, SC-59, SOT-23-3

概述

Description

BZX84B4V7LT1G is a small-signal Zener diode in the BZX84B family with a nominal Zener voltage of 4.7 V. It is a low-power, surface-mount device (SOT-23) rated around 0.5 W, used for voltage regulation, clamping, and transient protection in low‑current circuits.
Key points:
- Zener voltage (Vz): ~4.7 V (tolerance typically ±5% for the B series)
- Package: SOT-23
- Power: ~0.5 W
- Temperature range: commonly -40°C to +125°C
- Applications: reference/clamp for power rails, protection on inputs/lines, simple voltage regulation in microcontroller circuits
Pinout: in most SOT-23 BZX84B diodes, the cathode is the middle pin (pin 2) and is marked with a band; anodes are on pins 1 and 3. Always verify with the datasheet for the exact package pinout.
LT1G suffix generally indicates packaging/lot code (e.g., tape-and-reel and RoHS-compliant) rather than electrical performance.

Features

Here are the key features of BZX84B4V7LT1G:
- Type: Zener diode (voltage regulator/clamp)
- Zener voltage: 4.7 V (nominal)
- Power rating: 0.5 W (at 25°C)
- Package: SOT-23 (SMT, 3 pins)
- Tolerance: B (±5%)
- Temperature range: -55°C to +150°C
- RoHS-compliant / lead-free (LT1G)
- Applications: voltage regulation, reference, overvoltage protection, clamping
- Characteristics: compact, reliable, suitable for low-current regulation and protection circuits

Package

SOT-23 (3-pin) surface-mount package.

Pinout

- Pin count: 3 pins (SOT-23 package)
- Function: Zener diode, 4.7 V breakdown (0.5 W), unidirectional for voltage regulation/clamping
- Pinout (typical): Pin 1 = Anode, Pin 2 = Cathode, Pin 3 = No Connect (NC)

Manufacturer

- Manufacturer: Vishay Intertechnology, Inc. (Vishay)
- Company type: A multinational manufacturer of electronic components, including discrete semiconductors (diodes, transistors) and passive components (resistors, capacitors, inductors, sensors).

Application

Applications:
- Shunt regulator for low‑power supplies and a 4.7 V reference.
- Clamping/protection on inputs, rails, and signal lines to limit voltages (~4.7 V).
- Signal conditioning and waveform clipping in analog/digital circuits.
- Basic overvoltage protection for microcontrollers, sensors, and small electronic modules (consumer/industrial).

Equivalent

Equivalent parts (4.7 V Zener, 0.5 W, SOT-23):
- BZX84B4V7 family from other vendors (NXP/Nexperia, Vishay, Diodes Inc).
- MMBZ4V7 (ON Semiconductor).
If packaging isn’t critical, you can also consider BZT52B4V7 (SOD-123).