View SRDA70-4_1081610.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

SRDA70-4 STEERING DIODE TVS ARRAY
SCOTTSDALE DIVISION
DESCRIPTION These low capacitance diode arrays are multiple, discrete, isolated junctions fabricated by a planar process and mounted in a SO-8 package for use as steering diodes protecting up to four I/O ports from ESD, EFT, or surge by directing them either to the positive side of the power supply line or to ground (see schematic, page 2). An external TVS diode may be added between the positive supply line and ground to prevent overvoltage on the supply rail. These arrays offer many advantages of integrated circuits such as highdensity packaging and improved reliability. This is a result of fewer pick and place operations, smaller footprint, smaller weight, and elimination of various discrete packages that may not be as user friendly in PC board mounting.
IMPORTANT: For the most current data, consult MICROSEMI's website: http://www.microsemi.com
TVS arrayTM SERIES
WWW . Microsemi .C OM
FEATURES
* * * * Diode Array to Protect Four I/O Lines Surge protection per IEC 61000-4-2, IEC 61000-4-4 and IEC61000-4-5 (1 kV, 24 A at 8/20 s) UL 94V-0 Flammability Classification Low Capacitance for High-Speed Interfaces * * * *
APPLICATIONS / BENEFITS
Data Line Protection Latch-Up Protection RS-232 & RS-422 Interface Networks Computer I/O Ports LAN
*
MAXIMUM RATINGS
* * * * * * Operating Temperature: -55C to +150C Storage Temperature: -55C to +150C Peak Pulse Power : 500 Watts (8/20 s, Figure 1) Peak Pulse Current : 24 Amps (8/20 s, Figure 1) Pulse Repetition Rate: < .01% Lead Soldering Temperature: 260C for 10 seconds * * * * * *
MECHANICAL AND PACKAGING
Molded SO-8 Surface Mount Weight 0.066 grams (approximate) Marking: Logo, device marking code, date code Pin #1 defined by dot on top of package Tape & Reel per EIA Standard 481 13 inch reel; 2,500 pieces (OPTIONAL)
* Carrier tubes; 95 pcs (STANDARD)
ELECTRICAL CHARACTERISTICS
PEAK REVERSE VOLTAGE VRWM BREAKDOWN VOLTAGE VBR @50 A VOLTS MIN 85 FORWARD CLAMPING VOLTAGE VFC @ 1 Amp (Figure 2) VOLTS MAX 1.3 FORWARD CLAMPING VOLTAGE VFC @ 10 Amp (Figure 2) VOLTS MAX 3.3 REVERSE LEAKAGE CURRENT IR @ VRWM A MAX 5 CAPACITANCE (f=1 MHz) C @ 0V Between I/O pins and ground pF MAX 15 CAPACITANCE (f=1 MHz) C @ 0V
PART NUMBER
DEVICE MARKING
SRDA70-4 DA70-4
VOLTS MAX SRDA70-4 SM70-4 70
Between I/O pins pF TYP 4
Copyright 2004 8-26-2004 REV A
Microsemi
Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
SRDA70-4 STEERING DIODE TVS ARRAY
SCOTTSDALE DIVISION
Symbol
VBR VRWM VFC IR C
SYMBOLS & DEFINITIONS Definition
Minimum Breakdown Voltage: The minimum voltage the device will exhibit at a specified current. Working Peak Reverse Voltage: The maximum peak voltage that can be applied over the operating temperature range. Forward Clamping Voltage: The maximum forward clamping voltage across the device when subjected to a given current at a pulse time of 20 s. Maximum Leakage Current: The maximum leakage current at VRWM. Capacitance: The capacitance of the TVS as defined @ 0 volts at a frequency of 1 MHz and stated in picofarads.
WWW . Microsemi .C OM
GRAPHS
Ppp Peak Pulse Power (kW)
Figure 1 Peak Pulse Power Vs Pulse Time t = sec
Figure 2 Pulse Wave Form
OUTLINE AND SCHEMATIC
PAD LAYOUT DIM A B C D F G J K L P Copyright 2004 8-26-2004 REV A INCHES MIN MAX 0.188 0.197 0.150 0.158 0.053 0.069 0.011 0.021 0.016 0.050 0.050 BSC 0.006 0.010 0.004 0.008 0.189 0.206 0.228 0.244 OUTLINE MILLIMETERS MIN MAX 4.77 5.00 3.81 4.01 1.35 1.75 0.28 0.53 0.41 1.27 1.27 BSC 0.15 0.25 0.10 0.20 4.80 5.23 5.79 6.19 SCHEMATIC
SRDA70-4
Microsemi
Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2

▲Up To Search▲

Price & Availability of SRDA70-4

	To Download SRDA70-4 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .