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参数资料
| 型号： | 420E212 |
| 厂商： | PROTEK DEVICES |
| 元件分类： | TVS二极管 - 瞬态电压抑制 |
| 英文描述： | DUAL 4-20mA CONTROL LOOP PROTECTOR |
| 中文描述： | UNIDIRECTIONAL, 2 ELEMENT, SILICON, TVS DIODE |
| 封装： | CASE 420E2, 5 PIN |
| 文件页数： | 1/3页 |
| 文件大小： | 97K |
| 代理商： | 420E212 |
420E212
thru
420E260
1
05053.R4 7/04
www.protekdevices.com
DUAL 4-20mA CONTROL LOOP PROTECTOR
Only One Name Means ProTek’Tion
APPLICATIONS
Security Alarm Systems
Industrial Control & Monitoring Systems
Remote Tech Site Station
Process Control Loops
IEC COMPATIBILITY (EN61000-4)
61000-4-2 (ESD): Air - 15kV, Contact - 8kV
61000-4-4 (EFT): 40A - 5/50ns
61000-4-5 (Surge): 8/20s - 95A, Level 4 (Line-Gnd) & 48A, Level 4 (Line-Line)
FEATURES
Designed for 4-20mA Current Loops
Automatic Reset - Does Not Interrupt Service
Permanent Two-Stage Line Pair Protection
Common Mode & Differential Mode Protection
Subnanosecond Response Time
Effective Against Lightning, Inductive Switching and ESD
MECHANICAL CHARACTERISTICS
Weight: 50 grams (Approximate)
Flammability Rating UL 94V-0
Device Marking: Logo, Terminal Designations, Date Code & Part Number
DESCRIPTION
The 420E2 series is a two stage transient voltage protector providing primary and
secondary protection against lightning, inductive switching and electrostatic discharge
(ESD) transient threats. The first stage diverts the transient current through the ground
terminal return path and the second stage clamps the voltage to a safe level without
interruption of service.
The 420E2 series is designed to protect 4-20mA analog control loops from differential
and common mode transients. Terminals 1 and 2 are designed as the line pairs for
both the line and equipment side of the protector. A transient voltage suppressor is
internally connected across each line pair for differential mode protection. Each line
pair is referenced to ground.
This product can also be used on telephone, signal/data lines, security timing and
control interface circuits.
05053
420E PACKAGE
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 420E212_11 | 制造商:PROTEC 制造商全称:Protek Devices 功能描述:dual 4-20mA CONTROL LOOP PROTECTOR |
| 420E212_12 | 制造商:PROTEC 制造商全称:Protek Devices 功能描述:DUAL 4-20mA CONTROL LOOP PROTECTOR |
| 420E225 | 制造商:ProTek Devices 功能描述:420E225 Series 4 V 4 - 20 mA Dual Control Loop Protector |
| 420E228 | 制造商:PROTEC 制造商全称:Protek Devices 功能描述:DUAL 4-20mA CONTROL LOOP PROTECTOR |
| 420E236 | 制造商:PROTEC 制造商全称:Protek Devices 功能描述:DUAL 4-20mA CONTROL LOOP PROTECTOR |
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