SMD 3-Electrode GDT Discharge Tube 230V 20% 10kA Surge Arrester for Communication Equipment
Price:
To be advised
MOQ:
4000PCS
Delivery Time:
7-10 Workdays
Brand:
Ampfort
Product Description
Product Overview
SMD 3-electrode 3-pin radial ceramic gas discharge tube (GDT) model 8TL230M, designed for robust overvoltage protection in communication equipment and electronic systems.
Operating Principle
GDT surge arrestor devices operate on the gas-physical principle of highly effective arc discharge. Essentially a voltage-dependent switch, the GDT maintains high impedance in off-state until voltage exceeds the device's sparkover threshold. At this point, the gas becomes fully ionized and conduction occurs within microseconds. During arc-over, the GDT exhibits low impedance crowbar characteristics, effectively limiting overvoltage to safe levels and shunting follow current away from downstream components. When the surge event subsides, the GDT automatically resets to high impedance state.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 8TL230M |
| DC Spark-over Voltage | 184-276V (Rise speed 100V/s) |
| Impulse Spark-over Voltage | ≤700V (Rise speed 1000V/µs) |
| Insulation Resistance | ≥1GΩ (DC 100V) |
| Electrode Capacitance | ≤1.5pF (1MHz 0.5V) |
| Impulse Discharge Current | 10kA (8/20μs, 5 times, 60s interval) |
| Package | Plastic box: 100pcs per box, 4000pcs per carton |
| Mounting | Surface Mount |
| Function | Overvoltage Protection |
Material Composition
| Component | Material |
|---|---|
| Electrode | Iron-nickel alloy |
| Ceramic Tube | AL2O3 |
| Intermediate Electrode | Iron-nickel alloy |
| Electronic Powder | Na2SiO3 etc |
| Lead Wire | Tinned copper wire |
Product Series Comparison
| Catalog No. | DC Spark Over Voltage | Impulse Spark Over Voltage | Insulation Resistance | Electrode Capacitance | Impulse Discharge Current | AC Discharge Current |
|---|---|---|---|---|---|---|
| 8TL075M | 75±20% | ≤600V | ≥1GΩ | ≤1.5pF | 10kA | 10A |
| 8TL090M | 90±20% | ≤600V | ≥1GΩ | ≤1.5pF | 10kA | 10A |
| 8TL150M | 150±20% | ≤600V | ≥1GΩ | ≤1.5pF | 10kA | 10A |
| 8TL230M | 230±20% | ≤700V | ≥1GΩ | ≤1.5pF | 10kA | 10A |
| 8TL350M | 350±20% | ≤1000V | ≥1GΩ | ≤1.5pF | 10kA | 10A |
| 8TL420M | 420±20% | ≤1000V | ≥1GΩ | ≤1.5pF | 10kA | 10A |
| 8TL470M | 470±20% | ≤1200V | ≥1GΩ | ≤1.5pF | 10kA | 10A |
| 8TL600M | 600±20% | ≤1400V | ≥1GΩ | ≤1.5pF | 10kA | 10A |
Key Features & Benefits
Product Features
- RoHS compliant
- Wide voltage range: 75V to 7200V
- Low arc (on-state) voltage
- Low capacitance (≤1.5pF) and insertion loss
- Non-radioactive materials
- UL497B SPD certified: E365642
- Complies with GB/T9043-2008 standard
Manufacturing Advantages
- 50+ years of GDT design and manufacturing experience
- High impulse current ratings: 2kA to 100kA
- Switch-Grade Fail-Short technology available
- Custom device capabilities
- Lab facilities for design verification and compliance testing
Testing & Certification
Devices are tested according to U.S. and international standards including ITU-T Rec.K.12 and IEC61643-21.
Product Gallery
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Dongguan Ampfort Electronics Co., Ltd.
Location
Floor 5,Changlong Industrial Building,No.6,Jiangnan Road,Jingshan,Chashan Town,Dongguan 523323,China
Contact Person
Annie Fang