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Bourns 203509BLF Miniature 2-Pole Gas Discharge Tube

The Bourns 2035-09-BLF is a miniature 2-pole gas discharge tube (GDT) offering robust overvoltage protection in a compact form factor. Designed for use in telecommunications, industrial, commercial, automotive, aircraft, and military electronics, this GDT provides reliable surge suppression. It is RoHS compliant and features a 90V DC sparkover voltage, making it suitable for protecting sensitive circuits from transient voltage events. Available in various packaging options, the 2035-09-BLF is a versatile solution for a wide range of applications requiring overvoltage protection.

Authorized Distributors
Source:DigiKey
Part No:2035-09-BLF
Stock:945
Inv Date:05-28-2026
Price: Unit price: $1.2
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Part No:2035-09-BLF
Stock:619
Inv Date:05-29-2026
Price: Unit price: $0.99
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Part No:2035-09-BLF
Stock:0
Inv Date:05-28-2026
Price: Unit price: $1.01
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Part No:2035-09-BLF
Stock:1100
Inv Date:05-28-2026
Price: Unit price: $0.6538
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Part No:2035-09-BLF
Stock:1100
Inv Date:05-28-2026
Price: Unit price: $0.6538
Buy/RFQ:
Source:Arrow EU
Part No:2035-09-BLF
Stock:1000
Inv Date:05-29-2026
Price: N/A
Buy/RFQ:

Bourns 203509BLF Miniature 2-Pole Gas Discharge Tube Specifications:

  • DC Sparkover ±15 %: 90 V
  • Impulse Sparkover (1): 300 V @ 100 V/μs, 550 V @ 1000 V/μs
  • DC Sparkover ±15 % @ 100 V/s: 90 V
  • Diameter: 5 mm
  • Length: 4 mm
  • UL Recognized: Yes
  • Surge Current Rating: High
  • RoHS Compliant: Yes
  • Insulation Resistance (IR): > 10[10] Ω
  • Glow Voltage: ~ 70 V
  • Arc Voltage: ~ 10 V
  • Glow-Arc Transition Current: < 0.5 A
  • Capacitance: < 1 pF @ 1 MHz
  • DC Holdover Voltage: < 150 ms
  • Impulse Discharge Current: 10000 A @ 8/20 μs
  • Alternating Discharge Current: 20 Arms @ 11 cycles
  • Operating Temperature: -55 to +85 °C
  • Climatic Category: 40/90/21
  • Sparkover limits after life: ±20 %
  • Model Number Marking: xxxV

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Frequently Asked Questions

Where can I buy Bourns 203509BLF?

You can click on the BUY or RFQ button to purchase 203509BLF from an authorized Bourns distributor.

How do I troubleshoot issues or seek technical support for part 203509BLF?

You can download the 203509BLF datasheet or visit the Bourns website for support.

Who is the manufacturer of 203509BLF?

Bourns

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