MMBZ5242BLT1G

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MMBZ5242BLT1G

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DIODE ZENER 12V 225MW SOT23-3

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  • Herstellerteil #MMBZ5242BLT1G

  • Paket TO-236-3

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Spezifikationen

Attribut Wert
Supplier onsemi
Package / Case Tape & Reel (TR),Cut Tape (CT)
Part Status Active
Voltage - Zener(Nom)(Vz) 12 V
Tolerance ±5%
Power - Max 225 mW
Impedance(Max)(Zzt) 30 Ohms
Current - Reverse Leakage @ Vr 1 µA @ 9.1 V
Voltage - Forward (Vf) (Max) @ If 900 mV @ 10 mA
Operating Temperature -65°C ~ 150°C
Mounting Type Surface Mount

Übersicht

Description

MMBZ5242BLT1G is ON Semiconductor’s MMBZ series, a small, surface-mount Zener diode. It’s a unidirectional Zener used for simple voltage regulation and clamping in low-power circuits. Key points:
- Nominal Zener voltage: about 12 V (±5%)
- Power rating: ~0.5 W
- Package: small SMD (LT1G suffix indicates RoHS-compliant, tape-and-reel variant)
- Temperature range: -55°C to +125°C
- Applications: input protection, shunt regulation, voltage references, and transient suppression
For exact specs (dynamic impedance, knee current, leakage, and maximum reverse voltage), consult the MMBZ5242B datasheet from ON Semiconductor.

Equivalent

MMBZ5242BLT1G is a 12 V Zener diode in an SOD‑523 package. Direct equivalents include BZT52 series 12 V Zeners such as Diodes Inc BZT52B12, Nexperia BZT52H‑C12, ROHM BZT52C12, and other manufacturers’ BZT52‑12 (SOD‑523) parts. Verify power rating and tolerance in datasheets before substitution.

Features

MMBZ5242BLT1G is a unidirectional Zener diode in a small SOT-23 package. Key features:
- Nominal Zener voltage: 12 V (MMBZ5242B family)
- Power rating: 0.5 W (25°C)
- Tolerance: ±5%
- Temperature range: -55°C to +125°C
- RoHS compliant, lead-free
- Tape & reel packaging (LT1G variant)
- Used for voltage regulation, reference, and surge/overvoltage protection in compact SMT designs.

Pinout

- Pin count: 2 terminals
- Function: Unidirectional Zener diode (voltage clamp/regulator) used for overvoltage protection and voltage regulation in SMT circuits.

Manufacturer

Manufacturer: ON Semiconductor (ON Semiconductor Corporation).
Company type: American multinational semiconductor company that designs and manufactures discrete and integrated devices (e.g., diodes, transistors, power-management ICs, sensors) for automotive, industrial, consumer electronics, and communications markets. HQ in Phoenix, Arizona; public company and major supplier of energy-efficient components.

Application

MMBZ5242BLT1G is a 12 V Zener diode (0.5 W) in an SMD package. Typical applications include:
- Shunt regulator/reference: simple, low-power voltage reference and regulator circuits.
- Voltage clamping/protection: protect microcontrollers, sensors, and logic inputs from overvoltage.
- Rail protection: clamp and stabilize 12 V power rails in consumer, automotive, and telecom equipment.
- Biasing/level-shifting networks: establish reference levels in analog front ends.
- Transient/overvoltage protection in small-signal paths where a modest, fixed clamp is acceptable.
Note: choose when a fixed ~12 V clamp/reference suits the design’s accuracy and power budget.

Package

The MMBZ5242BLT1G is supplied in a SOT-23 (3-lead) surface-mount package.

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