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MMBZ5242BLT1G

Name: MMBZ5242BLT1G
Rating: 4.7 (12 reviews)

DIODE ZENER 12V 225MW SOT23-3

製造商
製造商。部分 #MMBZ5242BLT1G
包 TO-236-3, SC-59, SOT-23-3
資料表 MMBZ5242BLT1G DataSheet
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規格

Supplier	onsemi
Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
Voltage-Zener(Nom)(Vz)	12 V
Tolerance	±5%
Power-Max	225 mW
Impedance(Max)(Zzt)	30 Ohms
Current-ReverseLeakage@Vr	1 µA @ 9.1 V
Voltage-Forward(Vf)(Max)@If	900 mV @ 10 mA
OperatingTemperature	-65°C ~ 150°C
MountingType	Surface Mount
Package/Case	TO-236-3, SC-59, SOT-23-3

概述

Description

MMBZ5242BLT1G is a surface‑mount Zener diode (12 V) from On Semiconductor’s MMBZ series. Key points:
- Zener voltage: nominally 12 V (reverse‑biased for regulation/clamping)
- Power rating: about 0.5 W
- Package: MMBZ series, RoHS-compliant SMD (indicated by the LT1G suffix)
- Tolerance: B = ±5%
- Polarity: cathode marked (band) side; use in reverse bias for regulation or transient suppression
- Typical uses: voltage regulation, reference/clamping, overvoltage protection in compact circuits
- Temp range: wide operating range (typical for MMBZ diodes)
In short: a small 12 V Zener diode for tight, compact voltage regulation or protection in SMD designs.

Features

MMBZ5242BLT1G features (summary):
- 12 V Zener diode (reverse breakdown around 12 V; nominal Vz ~12 V)
- 0.5 W power rating (surface-mount)
- Unidirectional Zener for regulation, reference, and protection
- Tolerance: typically ±5%
- Wide operating temperature: generally -55°C to +150°C
- RoHS compliant; small SMD package (tape-and-reel LT1G)
- 2-terminal device, suitable for compact regulator/designal protection circuits

Package

SOD-123 surface-mount package (lead-free). The T1G suffix indicates RoHS-compliant tape-and-reel packaging.

Pinout

- Pin count: 2 pins
- Function: Unidirectional Zener diode used for voltage regulation/clamping (12 V Zener in a small SMD package).

Manufacturer

- Manufacturer: ON Semiconductor (Onsemi).
- What kind of company: A US-based multinational semiconductor company that designs, manufactures, and markets silicon-based integrated circuits and discrete components (diodes, transistors, power management, sensors) for automotive, industrial, and consumer markets.

Application

- 12 V Zener diode for low-power regulation and voltage references
- Shunt regulation of DC rails
- Clamping and transient protection for sensitive inputs
- Surge/overvoltage protection in consumer electronics and battery-powered devices

Equivalent

Equivalent parts (12 V Zener, ~0.5 W):
- Vishay BZT52B12 (SOD-123)
- Vishay BZX84C12 (SOT-23)
- Nexperia BZX84C12 (SOT-23)
- ON Semiconductor MMSZ5242BT1G / MMBZ5242BLT1G (cross-packages)
Tip: pick the same package and tolerance (e.g., 5%/1%) for proper compatibility.