CG90L LITTELFUSE Undefined or Miscellaneous (Other) In Stock
Littelfuse CG90L is a 2-electrode axial gas discharge tube rated 90 V DC sparkover and 500 A impulse current, offering robust transient overvoltage protection in a through-hole round package for telecom and industrial surge protection circuits.
- Manufacturer
- LITTELFUSE
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- CG90L Datasheet PDF
- Category
- Undefined or Miscellaneous
- Price
- From $1.3180(MOQ 1)
- Temp Range
- -40.0°C to 90.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 90 V DC sparkover voltage with 500 A impulse surge current handling for robust transient overvoltage protection in telecom and data line circuits
- 2-electrode axial through-hole construction enabling easy insertion into standard PCB layouts and surge protection module designs
- Gas discharge tube technology providing inherently low capacitance (typically < 1 pF) to minimize signal distortion on high-frequency data lines
- Lead-free (Pb-free) construction with 250°C peak reflow compatibility ensuring compliance with RoHS environmental regulations
Applications
The CG90L is used in telecom line protection circuits, DSL modems, industrial data communication interfaces, and power line surge arrestors requiring transient overvoltage clamping at 90 V with 500 A impulse current capability. Its 2-electrode gas discharge tube technology provides a reliable, low-capacitance protection element for telephone subscriber lines, RS-485 interfaces, and Ethernet signal ports. It is also applicable in industrial control system surge protection modules where through-hole axial mounting is preferred for ruggedness and thermal performance.
Specifications
| Pbfree Code | Yes |
| YTEOL | 7 |
| JESD-30 Code | O-XDSS-W2 |
| Number of Functions | 1 |
| Package Body Material | UNSPECIFIED |
| Package Shape | ROUND |
| Package Style | SPECIAL SHAPE |
| Peak Reflow Temperature (Cel) | 250 |
| Qualification Status | Not Qualified |
| Surface Mount | NO |
| Telecom IC Type | GAS DISCHARGE TUBE SUPPRESSOR |
| Terminal Finish | Pure Tin (Sn) - with Nickel (Ni) barrier |
| Terminal Form | WIRE |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the sparkover voltage and surge current ratings of the CG90L gas discharge tube?
The Littelfuse CG90L has a DC sparkover voltage of 90 V and can handle impulse surge currents up to 500 A. This combination makes it suitable for protecting telecom subscriber lines, industrial data interfaces, and signal ports from lightning-induced transients and EFT surges that exceed the 90 V threshold, safely shunting 500 A peak impulse currents to ground during a transient event.
How does the low capacitance of the CG90L benefit high-frequency data line protection?
Gas discharge tubes like the CG90L exhibit very low junction capacitance, typically under 1 pF, which is orders of magnitude lower than TVS diodes used in the same voltage range. This minimal capacitance allows the CG90L to protect high-speed data lines such as DSL, RS-485 running at 10 Mbit/s or faster, and xDSL interfaces operating at MHz frequencies without introducing signal reflections or bandwidth degradation that higher-capacitance clamp devices would cause.
In which circuit positions and surge protection topologies is CG90L most commonly deployed?
The CG90L is typically placed in primary protection stages between the line conductors and earth ground in telecom overvoltage protection circuits, often as the first clamp element in a two-stage protection scheme. At a 90 V sparkover threshold with 500 A impulse capacity, it handles large lightning and power cross transients before secondary protection elements such as PTC thermistors or TVS diodes reduce residual voltage to safe levels for downstream equipment.
What installation method does the CG90L support and what are its package dimensions for PCB layout planning?
The CG90L uses an axial through-hole package with a round body profile (JESD-30 code O-XDSS-W2), designed for manual or automated through-hole PCB insertion and wave soldering. Its 2-electrode axial leads allow standard lead-forming and pitch adjustment for various PCB grid spacings, making it straightforward to integrate into surge protection boards, SPD modules, and telecom protection assemblies requiring 90 V / 500 A GDT components.
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About LITTELFUSE
LITTELFUSE is a leading electronic component manufacturer. FindMyChip sources LITTELFUSE ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.3180 | $1.32 |
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