Features
Applications
■ RoHS compliant*
■ Halogen free**
■ ESD protection
■ Protects 2 lines
■ Low leakage current
■ Low capacitance
■ Ethernet - 10/100/1000 Base T
■ Firewire and USB
■ Portable electronics
■ Video/Graphic Cards
CD143A-SR2.8~3.3 – Steering/TVS Diode Array Series
General Information
The CD143A-SR2.8 and CD143A-SR3.3 devices provides ESD
protection for the external ports of portable electronic devices such
as cell phones, handheld electronics and personal computers.
4
REF
GND
1
2
The ESD protection provided by the component enables a data
port to withstand a minimum ±8 ꢀK Contact ꢁ ±1± ꢀK Air Discharge
per the ESD test method specified in IEC 61000-4-2. The device
measures 2.80 mm x 1.20 mm and is available in a SOT-143
package intended to be mounted directly onto an FR4 printed
circuit board.
The Bourns® device will meet IEC 61000-4-2 (ESD), IEC 61000-4-4
(EFT) and IEC 61000-4-± (Surge) requirements.
I/O
3
I/O
Absolute Maximum Ratings (@ T = 25 °C Unless Otherwise Noted)
A
Parameter
Symbol
PPP
IPP
Value
200
12
Unit
W
A
Peak Pulse Power (tp = 8ꢁ20 µs)1
Peak Pulse Current (tp = 8ꢁ20 µs)
Operating Supply Koltage (Kdd - Gnd)
Kdc
3.8
K
ESD per IEC 61000-4-2
(Air)
Kesd
±30
kK
(Contact)
DC Koltage at any IꢁO Pin
Operating Temperature
Storage Temperature
Kio
TJ
TSTG
(Gnd - 0.±0) to (Kdd + 0.±)
-±± ˚C to 12± ˚C
K
˚C
˚C
-±± ˚C to 1±0 ˚C
Electrical and Thermal Characteristics (@ T = 25 °C Unless Otherwise Noted)
A
Parameter
Breakdown Koltage Minimum @ 2 µA
Working Peak Koltage
Snap-Back Koltage Minimum @ ±0 mA
Clamping Koltage Maximum @ IP = 1 A
Clamping Koltage Maximum @ IP
Reverse Leakage Current Maximum @ KWM
Forward Koltage Maximum @ 1± mA
Leakage Current @ KWM
Capacitance Typical @ 0 K, 1 MHz
Symbol
KBR
KWM
KSB
KC
KC
IL
Kf
ID
CD143A-SR2.8
CD143A-SR3.3
Unit
K
K
K
K
K
uA
K
µA
pF
2
3.0
2.8
2.8
3.±
3.3
3.3
2
2,3
±.0
7.0
2,3
8.± @ ± A
1± @ 10 A
2
±.0
1.0
1.0
4.±
4
4
CJ
ESD Protection per IEC 61000-4-2
Minimum Contact Discharge
Minimum Air Discharge
ESD
+ꢁ-8
+ꢁ-1±
kK
EFT Protection per IEC 61000-4-4 @ ±ꢁ±0ns
Surge Protection per IEC 61000-4-± @ 8ꢁ20µs
EFT
Surge
40
12
A
A
Notes:
1. See Peak Pulse Power vs. Pulse Time.
2. From Pin 4 to Pin 1.
3. See Pulse Wave Form.
4. From Pin 1 to Pin 3, Pin 1 to Pin 2
*
RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
** Bourns follows the prevailing definition of “halogen free” in the industry. Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less;
(b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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