SZBZX84B18LT1G

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SZBZX84B18LT1G

DIODE ZENER 18V 225MW SOT23-3

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사양

Supplier onsemi,Rochester Electronics, LLC
Package Tape & Reel (TR),Cut Tape (CT),Bulk
Series Automotive, AEC-Q101
ProductStatus Active
Voltage-Zener(Nom)(Vz) 18 V
Power-Max 225 mW
Impedance(Max)(Zzt) 45 Ohms
Current-ReverseLeakage@Vr 50 nA @ 12.6 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

개요

Description

SZBZX84B18LT1G is a Zener diode (BZX84B series) with a nominal Zener voltage of about 18 V, used for low‑power regulation and clamping in small circuits. Key points:
- Zener voltage: ~18 V (tolerance typically around ±5% for the B series)
- Power rating: 0.5 W
- Package: SOT-23 (two terminals used; third pin often NC)
- Test current (Vz specification): ~5 mA
- Maximum Zener current: ~20 mA
- Marking suffix LT1G usually indicates RoHS lead‑free, tape‑and‑reel packaging (lot/packaging variant)
Typical applications: voltage regulation/reference, overvoltage protection, and transient/clamp protection in consumer electronics and microcontroller power rails.
Note: exact parameters can vary by lot/vendor, so consult the datasheet for the specific lot if precision is critical.

Features

Here are concise features for SZBZX84B18LT1G:
- Zener diode, nominal Zener voltage Vz = 18 V
- Power rating: 0.5 W (500 mW) at 25°C
- Tolerance: B variant ≈ ±5%
- Package: SOT-23 (3-pin)
- Unidirectional device; reverse breakdown clamps voltage
- Temperature range: typically -55°C to +150°C
- RoHS compliant, lead-free; Tape & Reel package (LT1G)
- Applications: voltage regulation, overvoltage protection, clamping reference
Note: exact parameters (e.g., Izt, Zzt) vary slightly by supplier; refer to the specific datasheet for precise specs.

Package

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

Pinout

Two pins. It is an 18 V Zener diode (BZX84B18) used for voltage regulation/clamping (0.5 W class in a small SMD package).

Manufacturer

- Manufacturer: Vishay Intertechnology.
- What kind of company: A multinational electronics components manufacturer, specializing in discrete semiconductors (e.g., diodes, Zeners) and passive components (resistors, capacitors, inductors), headquartered in Malvern, Pennsylvania, USA.

Application

Typical applications for SZBZX84B18LT1G (18 V Zener in SOT-23):
- Small-signal shunt regulation to hold ~18 V on low-current rails
- Overvoltage protection/clamping for power rails or signal lines (up to ~18 V)
- Non-precision voltage reference in analog circuits (comparator inputs, A/D references)
- Signal conditioning: waveform clipping/limiting in audio/telecom paths
- Biasing networks for transistors/op-amps and basic gate protection in compact designs

Equivalent

Equivalent parts for SZBZX84B18LT1G (18 V, 0.5 W Zener in SOT-23):
- Nexperia (formerly NXP): BZX84B18
- Vishay: BZX84B18
- Diodes Inc.: BZX84B18
These are the same device from different manufacturers; choose by tolerance (B = ±5%, C = ±10%) as needed.

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