Features

current requirements

Applications

Characteristics

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

Specifications 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 specific applications.

Test Methods per ITU-T K.12, IEEE C62.31 and IEC 61643-311 GDT standards.

Glow Voltage ................................................... 10 mA................................................................~ 70 V

Arc Voltage ...................................................... > 1A...................................................................~ 12 V

Glow-Arc Transition Current .......................................................................................................< 0.5 A

Capacitance..................................................... 1 MHz ...............................................................< 1 pF

80 V for Model 2029-15-SMLF) ........................< 150 ms

Impulse Discharge Current.............................. 25000 A, 8/20 μs ..............................................

20000 A, 8/20 μs...............................................> 10 operations

5 kA, 10/350 μs ................................................

100 A, 10/1000 μs.............................................> 300 operations

10 A, 10/1000 μs...............................................> 1500 operations

Alternating Discharge Current ......................... 65 Arms, 11 cycles ...........................................

20 Arms, 1 s......................................................> 10 operations

Operating Temperature............................................................................................................... -55 to +105 °C

Climatic Category (IEC 60068-1)................................................................................................

40/90/21

Notes:

• UL recognized component, UL File E153537.

• Model number marking on tube: 2029-xxxV.

• Surface Mount (SM) parts may show a temporary increase in DCBD after the solder reflow process. Most devices will recover within 24 hours

time. It should be noted that there is no quality defect nor change in protection levels during the temporary change in DCBD.

• Sparkover limits ± 25% and IR >108 Ω after life.

• At delivery AQL 0.65 Level II, DIN ISO 2859.

• Bourns recommends reflowing surface mount devices per IPC/JEDEC J-STD-020 rev D.

(3)

DC Sparkover may exceed ±20 % after discharge, but will continue to protect without venting.

Characteristic

Model No.

2029-09-SMLF

2029-15-SMLF

2029-23-SMLF

2029-35-SMLF

2029-42-SMLF

DC Sparkover ±20 %

@ 100 V/s

90 V

150 V

230 V

350 V

420 V

100 V/μs (Typical)

100 V/μs (99 %)

275 V

375 V

325 V

375 V

450 V

500 V

600 V

625 V

650 V

750 V

1 kV/μs (Typical)

1 kV/μs (99 %)

525 V

600 V

525 V

625 V

650 V

750 V

775 V

875 V

850 V

1000 V

Bourns offers a heavy duty 2-electrode GDT surge arrestor in an 8x6 mm surface mount (SM) package. The Model 2029-xx-SMLF

Series is categorized as a Class 5 rated GDT and attains the highest performance classification available under ITU K.12

requirements. High performance in a compact surface mount package makes this series ideal for use in heavily exposed

telecommunications, commercial and industrial applications.

(1)

Impulse Sparkover voltage is defined as typical values of distribution.