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Features
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Applications
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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
Characteristic
DC Sparkover ±15 %
(±20 % for Model 2027-09-SM) @ 100 V/s
Model No.
2027-07-SM
75 V
2027-09-SM
90 V
2027-15-SM
150 V
2027-20-SM
200 V
2027-23-SM
230 V
2027-25-SM
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.
Characteristic
DC Sparkover ±15 % @ 100 V/s
Impulse Sparkover
100 V/µs
1000 V/µs
2027-30-SM
300 V
550 V
800 V
2027-35-SM
350 V
600 V
875 V
2027-40-SM
400 V
650 V
925 V
2027-42-SM
420 V
675 V
950 V
2027-47-SM
470 V
725 V
1000 V
2027-60-SM
600 V
850 V
1100 V
Insulation Resistance ..................................100 V (50 V for Models 2027–07-SM & 2027-09-SM) ............> 10
10
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 Voltage
1
................................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 µs
2
................................................................... 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 cycles
2
................................................................ 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 >10
8
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
2
Network applied.
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.
2027-xx-SM Precision Gas Discharge Tube Surge Protector
Product Dimensions
Recommended Pad Layout
5.84
(.230)
9.9
(.390)
DIA.
1.78
(.070)
7.92
(.312)
7.93
(.314)
DIA.
8.25
(.325)
0.71
(.028)
6.42
(.253)
0.43
(.017)
DIMENSIONS =
MILLIMETERS
(INCHES)
Packaging Specifications
2.00
(0.079)
4.00
(0.157)
16.00
(0.630)
Model 2027-xx-SM ships standard
bulk pack, 100 pcs./bag.
The optional reelpack (-RP)
contains 500 pcs./reel. Reel is
33 cm in diameter and 3 cm wide.
1.50
DIA.
(0.059)
1.75
(0.07)
11.5
(0.45)
8.08
(0.32)
8.89
(0.350)
24.0
(0.94)
8.89
(0.350)
7.11
(0.28)
7.37
(0.290)
0.5
R
(0.02)
How To Order
2027 - xx - SM - RP - LF
Model Number
Designator
Voltage (Divided by 10)
07 = 75 V
30 = 300 V
09 = 90 V
35 = 350 V
15 = 150 V
40 = 400 V
20 = 200 V
42 = 420 V
23 = 230 V
47 = 470 V
25 = 250 V
60 = 600 V
Surface Mount
Packaging Option
Blank = Bulk Packaging (Standard)
RP =Reelpack (Optional)
Lead Free Option
Blank = Standard Product
LF = Lead Free/RoHS Compliant Product
Asia-Pacific:
Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
Europe:
Tel: +41-41 768 5555 • Fax: +41-41 768 5510
The Americas:
Tel: +1-951 781-5500 • Fax: +1-951 781-5700
www.bourns.com
REV. 03/09
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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