20KPA Datasheet, PDF (2/7 Pages) Littelfuse – Transient Voltage Suppression Diodes

Transient Voltage Suppressors - 20KPA Series
Features
1. Halogen-free
2. Rohs compliant
3. Typical maximum temperature coefficient
4. ΔVBR =0.1%xVBR@25°C x ΔT
5. Glass passivated Chip junction in P600 package
6. 5000W peak pulse capadility at 10x1000μs waveform,repetition rate (duty
cycles):0.01%
7. Fast response time:typically less than 1.0ps from 0 Volts to BV min
8. Excellent clamping capability
9. Low incremental surge resistance
10. Typical IR less than 5μA above 12V
11. High temperature soldering guaranteed: 260°C/40 seconds / 0.375”,
\(9.5mm) lead length, 5lbs., (2.3kg)tension
12. Plastic package has underwriters laboratory flammability classification
94v-0
UNI
Cathode
BI
BI
Anode
UNI
Applications
TVS devices are ideal for the protection of I/O interfaces,VCC bus and other vulnerable circuits used in telecom, computer,
industrial and consumer electronic applications.
Mechanical Characteristics
Rating
Symbol
Value
Peak Pulse Power Dissipation by 10x1000μs test waveform
(Fig.1)(Note 1)
Steady State Power Dissipation on
inifinite heat sink at TL=75°C (Fig. 5)
Peak Forward Surge Current, 8.3ms Single Half Sine Wave
Unidirectional only (Note 2)
Maximum Instantaneous Forward Voltage at 25A for
Unidirectional only (Note 3)
P_PPM
P_D
IFSM
V_F
20000
8
400
3.5/5.0
Operating junction and Storage Temperature Range.
T_J,T_STG
-55°C to 175°C
Typical Thermal Resistance Junction to Lead
R_uJL
8.0
Typical Thermal Resistance Junction
to Ambient
R_uJA
40
Notes:
1. Non-repetitive current pulse , per Fig. 3 and derated above T_A = 25°C per Fig. 2.
2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 perminute maximum.
Units
Watts
Watts
Amps
V
°C
°C/W
°C/W
Circuit Protection
System
Specifications are subject to change without notice.
Please refer to http://www.ruilon.com for current information. Page:1