Features
■ Protects four lines
■ Unidirectional
■ 24 A peak surge current
■ RoHS compliant*
Applications
■ PoE power protection
■ DC power supply protection
CDNBS08-T58CC - Common Cathode TVS Diode
*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.
General Information
The Model CDNBS08-T58CC is designed to protect the power section in Power over
Ethernet (PoE) applications. The device is packaged in an eight lead narrow body
SOIC package. Bourns
®
Chip Diodes are available in surface mount packages and are
easy to handle using standard pick and place equipment.
In addition to surge protection, the device provides Level 4 ESD protection per
IEC 61000-4-2.
8 7 6 5
1 2 3 4
Electrical Characteristics (@ T
A
= 25 °C Unless Otherwise Noted)
Parameter Symbol Test Condition Min. Typ. Max. Unit
Breakdown Voltage @ 1 mA V
BR
I
BR
= 1 mA 64.4 68 71.2 V
V
BR
Temperature Coeffi cient V
BR
I
BR
= 1 mA 0.1 %/°C
Leakage Current I
R
V
R
= V
WM
T
A
= 25 °C 200 nA
T
A
= 85 °C 1 µA
Capacitance C V
R
= -44 V, f = 1 MHz, 30 mV rms 55 pF
Clamping Voltage V
C
I
PP
= 24 A (8/20 µs) 100 V
Forward Voltage V
F
I
F
= 1 A, T
W
= 100 µs 1 V
Maximum Ratings (@ T
A
= 25 °C Unless Otherwise Noted)
Parameter Symbol Value Unit
Peak Pulse Current (8/20 µs) I
PP
24 A
Peak Pulse Power (8/20 µs) P
PP
2700 W
Working Peak Reverse Voltage V
WM
58 V
IEC 61000-4-2 Contact Discharge
ESD
30 kV
Junction Temperature T
J
-55 to +150 °C
Storage Temperature T
STG
-65 to +150 °C
Device Pinout
Pin Function
1 ANODE 1
2 GND
3 GND
4 ANODE 2
5 ANODE 3
6 GND
7 GND
8 ANODE 4
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EMEA: Tel: +36 88 520 390 • Fax: +36 88 520 211
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www.bourns.com
