SZMMBZ27VCLT3G

SZMMBZ27VCLT3G is a small surface-mount Zener/TVS diode from the MMBZ family. It provides overvoltage/ transient protection by clamping voltages to about 27 V on a line or rail. The “G” suffix indicates RoHS compliance. It’s a two-terminal device used to protect sensitive circuitry from spikes, ESD, and surges, typically on power rails or I/O lines (USB, automotive sensors, etc.). It’s designed for low-to-moderate power handling in compact SMD packages.
Key points:
- Voltage rating: ~27 V (Vz)
- Type: Zener/TVS diode, surface-mount
- Package: small SMD (CLT variant in the MMBZ系列)
- Applications: input/output and power-rail protection, surge clamping
- Specs: see datasheet for exact Vz tolerance, leakage, dynamic resistance, and peak current
For exact figures and packaging details, consult the manufacturer/distributor datasheet.

Direct equivalent:
- MMBZ27VCLT3G (On Semiconductor)
Cross references (same 27V Zener/TVS, similar power; check package):
- BZT52H-C27 (Diodes Inc / Nexperia) — SOD-123
- BZX84-C27 (Nexperia) — SOT-23
Note: packaging/power ratings vary; choose the one with the same footprint and spec (27V, ~0.5W).

SZMMBZ27VCLT3G is a fixed 27 V Zener diode (MMBZ27V series) in a surface‑mount package. Key features:
- Fixed Zener voltage: ~27 V (tight tolerance)
- Unidirectional Zener diode suitable for regulation and voltage‑clamping
- Small SMD package (CLT3G variant) for compact boards
- Low reverse leakage with fast response for protection applications
- RoHS compliant; wide operating temperature range (-55°C to +125°C)
- Versatile for input protection, voltage reference, and regulator circuits

- Pin count: 2 pins (anode and cathode)
- Function: 27 V Zener/TVS diode used for over‑voltage protection and clamping; in reverse bias it conducts to limit voltage to about 27 V.

- Manufacturer: ON Semiconductor (ON Semi).
- About the company: A global American semiconductor company that designs, manufactures, and markets a wide range of discrete and integrated semiconductor devices (diodes, transistors, power management ICs, sensors, etc.) for automotive, industrial, communications, and consumer markets.

SZMMBZ27VCLT3G is a 27 V Zener/TVS diode used for transient suppression. Typical application areas include:
- Overvoltage and ESD protection on 24–28 V power rails (automotive/industrial)
- Protection of microcontrollers, gate drivers, and linear regulators from surges
- I/O line protection in telecom, networking, and consumer electronics
- Clamping in DC-DC converter front ends and power-supply circuits
- General surge protection in automotive, industrial control, and appliance subsystems

Package: SOD-123 (surface-mount) TVS diode; RoHS lead-free, Tape & Reel version (LT3G).