TZ421M-SMD Datasheet, Specs, Alternatives & ECAD | SETsafe | SETfuse | PartGenie

AI summary

TZ421M-SMD product

TZ421M-SMD is a 420 V surface-mount GDT intended to divert surge energy in telecom, broadband, and power-interface protection circuits.

Best for

High-energy surge diversion
Broadband and telecom interfaces
Low-capacitance line protection

Avoid if

Normal circuit voltage can approach 336 V
The design cannot safely interrupt sustained follow current

Check before use

DC sparkover range of 336 V to 504 V
Impulse breakdown voltage at the applicable surge rise rate
PCB grounding and clearance layout

Key specifications

DC sparkover voltage: 420 V at 100 V/s
Nominal discharge current: 10 kA, 8/20 µs
Capacitance: ≤1.0 pF at 1 MHz
Package size: 7.6 mm × 5.0 mm × 5.0 mm

Compliance & Environment

RoHS: Compliant
REACH: Compliant
MSL: -
ECCN: -
HTSUS: -

Application

Telecom and broadband line protectionBase station and antenna interfacesConsumer equipment surge protection

Datasheet

34e5abf03000d4ce40249f1c21e636b6_TZ421M-SMD.pdf

800 KB

CAD Models

Download ECAD models for TZ421M-SMD: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol

Schematic symbol for your EDA tool

PCB Footprint

Land pattern for PCB layout

3D Model

STEP file for mechanical design

KiCad Library

Verified KiCad 8 symbol, footprint, and 3D model

Generate library

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

TZ421M-SMD is a SET surface-mount ceramic gas discharge tube (GDT) with 420 V nominal DC sparkover voltage measured at 100 V/s.