SA45A-T View Datasheet(PDF) - Littelfuse, Inc
Part Name
Description
Manufacturer
SA45A-T Datasheet PDF : 4 Pages
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Silicon Avalanche Diodes
500 Watt Axial Leaded Transient Voltage Suppressors
RoHS SA Series
®
The SA Series is designed specifically to protect sensitive
electronics equipment from voltage transients induced by
lightning and other transient voltage events. These devices are
ideal for the protection of I/O interfaces, Vcc bus and other
vulnerable circuits used in computer and consumer electronic
applications.
FEATURES
• RoHS Compliant
• 5.0 to 180 Volts
• Uni-directional and Bi-directional
• Glass passivated chip junction
• 500W peak pulse power capability on 10/1000µs waveform
• Excellent clamping capability
• Repetition rate (duty cycle): 0.01%
• Low incremental surge resistance
• Fast response time: typically less than 1.0ps from 0 Volts to
BV for unidirectional and 5.0ns for bidirectional types
• Typical IR less than 1µA above 10V
• High temperature soldering guaranteed: 265˚C/10
seconds/.375",(9.5mm) lead length, 5lbs.,(2.3kg) tension
Agency Approvals: Recognized under the Components
Program of Underwriters Laboratories.
Agency File Number: E128662
MAXIMUM RATINGS AND CHARACTERISTICS @25˚C
AMBIENT TEMPERATURE (unless otherwise noted)
RATING
SYMBOL
Peak Pulse Power Dissipation on
10/1000µs waveform(Note 1, FIG. 1)
PPPM
Peak Pulse Current of on 10/1000µs
waveform (Note 1, FIG. 3)
IPPM
Steady State Power Dissipation at
TL=75˚C, Lead lengths .375",
(9.5mm)(Note 2)
PM(AV)
VALUE
Min
500
SEE
TABLE 1
3
UNIT
Watts
Amps
Watts
Peak Forward Surge Current, 8.3ms
Single Half Sine-Wave Superimposed IFSM
70
on Rated Load, (JEDEC Method)
(Note 3)
Operating junction and Storage
Temperature Range
Tj, TSTG -55 to +175
Amps
°C
ORDERING INFORMATION
SA
CA
Voltage
Bi-Directional
5% Voltage Tolerance
Packing Option
B = Bulk (1000 pcs)
T = Tape and reeled (4000 pcs)
286
Notes:
1. Non-repetitive current pulse, per Fig.3 and derated above
TA= 25˚C per Fig.2
2. Mounted on Copper Pad area of 1.6x1.6"(40x40mm)
per Fig.5.
3. 8.3 ms single half sine-wave, or equivalent square wave, Duty
cycle= 4 pulses per minutes maximum.
Mechanical Specifications:
Weight:
0.015 ounce, 0.4 gram
Case:
JEDEC DO-15 Molded Plastic over
passivated junction
Mounting Position: Any
Polarity:
Color band denotes cathode except
Bidirectional
Terminal:
Plated Axial leads, solderable per
MIL-STD-750, Method 2026
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