Features
Applications
■ Surface mount for economical assembly
■ High surge current rating
■ Low capacitance and insertion loss
■ Stable breakdown throughout life
■ 8 mm diameter, 6 mm long
■ UL Recognized
■ Telecommunications
■ Industrial electronics
■ Commercial electronics
■ Automotive, aircraft, military electronics
2027-xx-SM Precision Gas Discharge Tube Surge Protector
Bourns offers an 8 x 6 mm Surface Mount (SM) 2-electrode GDT surge protection device. The industry-leading quality and features of
Bourns® 2027 Series GDT continue in this new SM version. Compatible with "pick and place" assembly systems, the 2027-SM is ideal
for compact applications such as PCBs for telecommunications, commercial and industrial applications.
Characteristics
Test Methods per ITU-T (CCITT) K.12, IEEE C62.31, RUS PE-80, Telcordia GR 1361
Model No.
Characteristic
2027-07-SM 2027-09-SM 2027-15-SM 2027-20-SM 2027-23-SM 2027-25-SM
DC Sparkover 15 ꢀ
( 20 ꢀ for Model 2027-09-SM) ꢁ 100 V/s
75 V
90 V
150 V
200 V
230 V
250 V
Impulse Sparkover
100 V/µs
1000 V/µs
300 V
500 V
300 V
500 V
350 V
575 V
400 V
600 V
450 V
675 V
475 V
700 V
Model No.
2027-35-SM 2027-40-SM 2027-42-SM 2027-47-SM 2027-60-SM
Characteristic
2027-30-SM
DC Sparkover 15 ꢀ ꢁ 100 V/s
350 V
400 V
420 V
470 V
600 V
300 V
Impulse Sparkover
100 V/µs
1000 V/µs
550 V
800 V
600 V
875 V
650 V
925 V
675 V
950 V
725 V
1000 V
850 V
1100 V
Insulation Resistance..................................100 V (50 V for Models 2027–07-SM & 2027-09-SM) ............> 1010 Ω
Glow Voltage...............................................10 mA......................................................................................~ 70 V
Arc Voltage..................................................> 1A.........................................................................................~ 10 V
Glow-Arc Transition Current........................................................................................................................< 0.5 A
Capacitance................................................1 MHz......................................................................................< 1 pF
DC Holdover Voltage1 ................................135 V, (52 V for Model 2027-09-SM;
80 V for Model 2027-15-SM).......................................................< 150 ms
Impulse Discharge Current .........................20000 A, 8/20 µs2 ................................................................... 1 operation minimum
10000 A, 8/20 µs.....................................................................> 10 operations
500 A, 10/1000 µs ..................................................................> 400 operations
100 A, 10/1000 µs or 10/700 µs .............................................> 1000 operations
Alternating Discharge Current.....................65 Arms, 11 cycles2 ................................................................ 1 operation minimum
10 Arms, 1 s............................................................................> 10 operations
Operating Temperature................................................................................................................................ -55 to +85 °C
Notes:
• UL recognized component, UL File E153537.
• Model number marking on tube: 27-xxxV.
• Sparkover limits 20 ꢀ after life, IR >108 Ω (-25 ꢀ, +30 ꢀ for Models 2027-07-SM, 2027–09-SM and 2027–60-SM).
• At delivery AQL 0.65 Level II, DIN ISO 2859. •
1 Network applied.
2 DC Sparkover may exceed 20 ꢀ after discharge, but will continue to protect without venting.
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.