CG2145
Gas Discharge TubeThe CG2145 is a gas discharge tube from Littelfuse. View the full CG2145 datasheet below including key specifications.
CG2145 shares its datasheet with CG90, whose page lists every part number it covers.
Official CG2145 datasheet (PDF) — the source this page was extracted from.
CG2145 Key Specifications
| Parameter | Value |
|---|---|
| Fail Short | No |
| Impulse Discharge Current (8/20µs) | 20000A (20kA) |
| Mounting Type | User Defined |
| Number of Poles | 2 |
| Package / Case | Cylinder No Lead |
| Packaging | Bulk |
| Standard Pack Qty | 1200 |
| Voltage - DC Spark Over (Nom) | 90 V |
CG2145 Overview
Part: Littelfuse CG/CG2 Series
Type: Gas Discharge Tube (GDT)
Description: Littelfuse CG/CG2 Series GDTs provide high surge protection in a small size, featuring rugged ceramic-metal construction, low capacitance (<1.5 pF), and DC breakdown voltages ranging from 60 V to 1150 V.
Operating Conditions:
- DC Breakdown Voltage Range: 60 V to 1150 V
- Operating temperature: -40 to +90 °C
- Capacitance: <1.5 pF (@1MHz)
Absolute Maximum Ratings:
- Max DC Breakdown Voltage: 1150 V (CG21000)
- Max Impulse Discharge Current: 4 kA (1 Application @10/350μs, for CG75, CG90, CG90 SN)
- Max Follow On Current: 200 A (230 Volts r.m.s)
- Max storage temperature: +90 °C
Key Specs:
- DC Breakdown Voltage (CG75): 60 V MIN, 75 V TYP, 90 V MAX (@100V/s)
- Impulse Breakdown Voltage (CG75): 400 V MAX (@100V/μs)
- Insulation Resistance (CG75): 10^10 Ω MIN (at 100V)
- Capacitance (CG75): 1.5 pF MAX (@1MHz)
- Arc Voltage (CG75): 15 V TYP (@1Amp Min)
- Nominal Impulse Discharge Current (most devices): 20 kA (8/20μs)
- Nominal AC Discharge Current (CG75): 20 A (10x1sec @50-60Hz)
- DC Holdover Voltage (CG75): 52 V TYP
Features:
- RoHS and Lead-free compliant
- Rugged Ceramic-Metal construction
- Low Capacitance (<1.5pf)
- Available in surface mount, and a variety of lead options
Applications:
- Communication lines and equipment
- CATV equipment
- Test equipment
- Data lines
- Power supplies
- Instrumentation circuits
- Medical electronics
- ADSL equipment
- Telecom SLIC protection
Package:
- Surface Mount
- Core
- Straight Lead (L Type)
- Shaped Lead (LS Type)
CG2145 Features
- RoHS and Lead-free compliant
- Rugged Ceramic-Metal construction
- Low Capacitance (<1.5pf)
CG2145 Applications
- Communication lines and equipment
- CATV equipment
- Test equipment
- Data lines
- Power supplies
- Meets REA PE-80
- Available in surface mount, and a variety of lead options options
- RoHS Compliant and Lead-Free
- Instrumentation circuits
- Medical electronics
- ADSL equipment
- Telecom SLIC protection
Variants on the same datasheet
These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.
More datasheets
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Then ask: "Can the CG2145 run from my 12 V rail? Check it against the datasheet limits."
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