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FEATURES
PEAK PULSE POWER : 600 W (10/1000µs)
BREAKDOWN VOLTAGE RANGE :
From 6.8V to 440 V.
UNI AND BIDIRECTIONAL TYPES.
LOW CLAMPING FACTOR.
FAST RESPONSE TIME.
UL RECOGNIZED.
P6KE6V8A/440A
P6KE6V8CA/440CA
TRANSILTM
DESCRIPTION
Transil diodes provide high overvoltage protection
by clamping action. Their instantaneous response
to transient overvoltages makes them particularly
suited to protect voltage sensitive devices such as
MOS Technology and low voltage supplied IC’s.
CB417
ABSOLUTE MAXIMUM RATINGS (Tamb = 25°C)
Symbol
Parameter
PPP Peak pulse power dissipation (see note 1) Tj initial =Tamb
P Power dissipation on infinite heatsink
Tamb = 75°C
IFSM Non repetitive surge peak forward current Tj initial =Tamb
For Unidirectional types.
tp =10 ms
Tstg Storage temperature range
Tj Maximum junction temperature
TL Maximum lead temperature for soldering during 10s at 5mm
from case
Note 1 : For a surge greater than the maximum values, the diode will fail in short-circuit.
Value
600
5
100
- 65 to + 175
175
230
Unit
W
W
A
°C
°C
°C
THERMAL RESISTANCES
Symbol
Parameter
Rth (j-l)
Rth (j-a)
Junction-leads
Junction to ambient on printed circuit.
Llead = 10 mm
Value
20
75
Unit
°C/W
°C/W
November 1998 - Ed: 2A
1/6
Fig. 4a : Capacitance versus reverse applied
voltage for unidirectional types (typical values).
P6KExx
Fig. 4b : Capacitance versus reverse applied
voltage for bidirectional types (typical values).
Fig. 5 : Peak forward voltage drop versus peak
forward current (typical values for unidirectional
types).
Note : multiply by 2 for units with VBR > 220 V.
Fig. 6 : Transient thermal impedance junction-am-
bient versus pulse duration (For FR4 PC Board
with L lead = 10mm).
Fig. 7 : Relative variation of leakage current
versus junction temperature.
5/6