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IA
Features
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Applications
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Lead free as standard RoHS compliant* Protects 2 I/O ports ESD protection > 40 KV Low capacitance: 15 pF
Ethernet – 10/100 Base T Computer I/O ports – SCSI, FireWire & USB Set-top box protection Video cards
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oH
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M
CDNBS08-USBxB Series - Steering Diode/TVS Array Combo
General Information
The markets of portable communications, computing and video equipment are challenging the semiconductor industry to develop increasingly smaller electronic components. Bourns offers Steering Diode/Transient Voltage Suppressor Array combination diodes for surge and ESD protection applications in an 8 lead narrow body SOIC package size format. Bourns® Chip Diodes conform to JEDEC standards, are easy to handle on standard pick and place equipment and their flat configuration minimizes roll away. The Bourns® device will meet IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT) and IEC 61000-4-5 (Surge) requirements.
8 7 6 5
1
2
3
4
Electrical Characteristics (@ TA = 25 °C Unless Otherwise Noted) Parameter Symbol CDNBS08USB3B USB6B Unit
Breakdown Voltage @ 1 mA Working Peak Voltage Maximum Clamping Voltage VC @ IP1 Maximum Clamping Voltage @ 8/20 µs VC @ IPP1 Maximum Leakage Current @ VWM Maximum Cap Bidirectional @ 0 V, 1 MHz
Peak Pulse Power (tp = 8/20 µs)
2
VBR VWM VF VF ID
C j(SD) PPP
4.0 3.3 6.0 12.9 V @ 37 A 125 15
500
6.0 5.25 7.0 13.2 V @ 35 A 10
V V V V µA pF
W
Notes: 1. See Pulse Wave Form. 2. See Peak Pulse Power vs. Pulse Time. 3. Electrical specifications refer to Pins 1 to 4 or Pin 5 to Pin 8.
Thermal Characteristics (@ TA = 25 °C Unless Otherwise Noted) Parameter Operating Temperature Storage Temperature Symbol TJ TSTG Max. -55 to +150 -55 to +150 Unit °C °C
*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.
CDNBS08-USBxB Series - Steering Diode/TVS Array Combo
Product Dimensions This is a molded JEDEC narrow body SO-8 package with lead free 100 % Sn plating on the lead frame. It weighs approximately 15 mg and has a flammability rating of UL 94V-0.
A
Recommended Footprint
A B
F H G
D
C
B
C
E
Dimensions
D DIMENSIONS = MILLIMETERS (INCHES)
A B
1.143 - 1.397 (0.045 - 0.055) 0.635 - 0.889 (0.025 - 0.035) 6.223 Min. (0.245) 3.937 - 4.191 (0.155 - 0.165) 1.016 - 1.27 (0.040 - 0.050)
E
C Dimensions A B C D E F G H
4.80 - 5.00 (0.189 - 0.196) 3.80 - 4.00 (0.150 - 0.157) 5.80 - 6.20 (0.229 - 0.244) 1.35 - 1.75 (0.054 - 0.068) 0.10 - 0.25 (0.004 - 0.008) 0.25 - 0.50 (0.010 - 0.019) 0.40 - 1.250 (0.016 - 0.049) 0.18 - 0.25 (0.007 - 0.009)
D E
How To Order
CD NBS08 - USB 3 B
Common Code Chip Diode Package • NBS08 = Narrow Body SOIC8 Package Model USB = Specific USB Port Device Minimum Breakdown Voltage 3 = 3.0 VBR (Volts) Configuration B = 2 Steering Diodes + 1 TVS Diode
Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
CDNBS08-USBxB Series - Steering Diode/TVS Array Combo
Performance Graphs Peak Pulse Power vs Pulse Time
10,000 IPP – Peak Pulse Current (% of IPP) PPP – Peak Pulse Power (W)
Pulse Wave Form
120 100 80 60 40 20 0 td = t|IPP/2 tt Test Waveform Parameters tt = 8 µs td = 20 µs et
1,000
500 W, 8/20 µs Waveform
100
10 0.01
1
10
100
1,000
10,000
0
5
10
15 t – Time (µs)
20
25
30
td – Pulse Duration (µs)
Block Diagram
8 7 6 5
Power Derating Curve
100 80 60 40 20 Peak Pulse Power 8/20 µs
% of Rated Power
1
2
3
4
Average Power 0 0 25 50 75 100 125 150
TL – Lead Temperature (°C)
Device Pinout Pin 1 2 3 4 5 6 7 8 Function VCC I/O 1 I/O 2 GND VCC I/O 1 I/O 2 GND
Typical Part Marking CDNBS08-USB3B ......................................................................PRQ CDNBS08-USB6B ......................................................................PRR
Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
CDNBS08-USBxB Series - Steering Diode/TVS Array Combo
Packaging The surface mount product is packaged in a 12 mm x 8 mm Tape and Reel format per EIA-481 standard.
TOP SIDE VIEW (INTO COMPONENT POCKET) DIMENSIONS = 0.3 ± 0.05 (.01 ± .002) 2.0 ± 0.05 (.08 ± .002) 4.0 ± 0.1 (.16 ± .004) 1.5 ± 0.1/-0 (.06 ± .004/-0) DIA. 1.75 ± 0.1 (.07 ± .004)
MILLIMETERS (INCHES)
R
0.3 MAX. (0.01)
12.0 ± 0.3 (.47 ± .01) 5.5 ± 0.3 (.22 ± .01) 9.0 ± 0.1 (.354 ± .004) 8.0 ± 0.3 (.31 ± .01) R 0.25 TYP. (0.010)
2.1 ± 0.1 (.083 ± .004)
6.4 ± 0.1 (.252 ± .004)
ORIENTATION OF COMPONENT IN POCKET BACKSIDE FACING UP
Reliable Electronic Solutions
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
Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.
COPYRIGHT© 2005, BOURNS, INC. LITHO IN U.S.A., IPA0524 10/05
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