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Technical content

Features

■ Compact size: 5.5 mm diameter, 6 mm length ■ Low capacitance ■ Low leakage ■ RoHS compliant* ■ UL Recognized

Applications

■ Telecommunications equipment ■ Industrial equipment/electronics ■ Consumer electronics Characteristics

2057 Series Light Duty 2-Electrode Miniature Gas Discharge Tube

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Specifi cations are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specifi c applications. Test Methods per ITU-T K.12 and IEC 61643-311. Characteristic Model No. 2057-07 2057-09 2057-12 2057-13 2057-15 2057-23 DC Sparkover ±20 % @ 100 V/s 75 V 90 V 120 V 130 V 150 V 230 V Impulse Sparkover (1)

100 V/µs

1000 V/µs

< 700 V < 800 V < 600 V < 700 V < 600 V < 700 V < 600 V < 700 V < 600 V < 700 V < 600 V < 700 V DC Holdover Voltage Notes:

  • UL Recognized component, UL File E153537.
  • At delivery AQL 0.65, level II DIN ISO 2859 (2) DC Sparkover Voltage DC Measuring Voltage 75–90 V 50 V 120–400 V 100 V

470 V 250 V

(3) Network Applied DC Sparkover Voltage DC Holdover Voltage 75–145 V 52 V 230–250 V 80 V 300–470 V 150 V *RoHS COMPLIANT Characteristic Model No. 2057-25 2057-30 2057-35 2057-40 2057-47 DC Sparkover ±20 % @ 100 V/s 250 V 300 V 350 V 400 V 470 V Impulse Sparkover (1) < 600 V < 700 V < 700 V < 900 V < 700 V < 900 V < 800 V < 1000 V < 900 V < 1100 V (1) Impulse Sparkover voltage is defi ned as typical values of distribution.

Specifi cations are subject to change without notice. Customers should verify actual device performance in their specifi c applications. Packaging Specifi cations Model 2057 ships standard bulk, 100 pcs. per tray; 5 trays per box (500 units). The optional reelpack (-BT1) contains 500 pcs. per reel; 2 reels per box (1K units). Product Dimensions How to Order 2057 - xx - B T1 LF Model Number Designator Voltage (Divided by 10) 07 = 75 V 25 = 250 V 09 = 90 V 30 = 300 V 12 = 120 V 35 = 350 V 13 = 130 V 40 = 400 V 15 = 150 V 47 = 470 V 23 = 230 V Leads B = 0.8 mm Packaging (Blank) = Bulk Packaging (Standard) T1 = Reelpack (Optional) RoHS Compliancy LF = RoHS Compliant Product REV. B 08/15 5.5 +0.3/-0.5 DIA. 6.0 +0.3/-0.5 (.236 +.012/-.020) (0.78) LONG 2 PLCS. MIN. 0.8 ± 0.05 (.031 ± .002) DIA. DIMENSIONS: MM (INCHES) 6.0 + 1.4 (.236 +.055) MAX. 10.0 ± 0.5 (.394 ± .020) 52 ± 2 (2.047 ± .079) 64 ± 3 (2.520 ± .118) 330 ± 4.0 (12.992 ± .157) DIA. 1.5 (.059) TYP. TYP. TYP. 100.0 (3.937) 68.0 (2.677) DIMENSIONS: MM (INCHES) Asia-Pacifi c: Tel: +886-2 2562-4117 Fax: +886-2 2562-4116 EMEA: Tel: +36 88 520 390 Fax: +36 88 520 211 The Americas: Tel: +1-951 781-5500 Fax: +1-951 781-5700 www.bourns.com