1.5KE6.8 thru 1.5KE550CA
and 1N6267 thru 1N6303A
Transient Voltage Suppressors
Peak Pulse Power 1500W Breakdown Voltage 6.8 to 550V
Features
Plastic package has Underwriters Laboratory Flammability
Classification 94V-0
Glass passivated junction
1500W peak pulse power capabililty on 10/1000us waveform,
repetition rate (duty cycle): 0.05%
Excellent clamping capability
Low incremental surge resistance
Very fast response time
High temperature soldering guaranteed: 265
o
C/10 seconds,
0.375" (9.5mm) lead length, 5lbs. (2.3 kg) tension
Includes 1N6267 thru 1N6303A
Mechanical Data
Case: Molded plastic body over passivated junction
Terminals: Plated axial leads, solderable per MIL-STD-750,
Method 2026
Polarity: For unidirectional types the color band denotes the
cathode, which is positive with respect to the anode under
normal TVS operation
Mounting Position: Any
Weight: 0.045oz., 1.2g
Devices for Bidirectional Applications
For bi-directional, use C or CA suffix for types 1.5KE6.8 thru types 1.5KE440
(e.g. 1.5KE6.8C, 1.5KE440CA). Electrical characteristics apply in both directions.
Maximum Ratings and Characteristics
(T
A
=25
o
C unless otherwise noted)
Parameter
Peak power dissipation with a 10/1000
u
s waveform
(1)
(Fig. 1)
Peak pulse current with a 10/1000
u
s waveform
(1)
Steady state power dissipation
at T
L
=75
o
C, lead lengths 0.375" (9.5mm)
(2)
Peak forward surge current 8.3ms single half sine-wave
uni-directional only
(3)
Maximum instantaneous forward voltage
at 100A for unidirectional only
(4)
Typical thermal resistance junction-to-lead
Typical thermal resistance junction-to-ambient
Operating junction and storage temperature range
Symbol
P
PPM
I
PPM
P
M(AV)
I
FSM
V
F
R
θ
JL
R
θ
JA
T
J
, T
STG
Value
Minimum 1500
See Next Table
6.5
200
3.5/5.0
20
75
-55 to +175
Unit
W
A
W
Amps
Volts
o
C/W
C/W
o
o
C
Notes:
1. Non-repetitive current pulse, per Fig.3 and derated above T
A
=25
o
C per Fig. 2
2. Mounted on copper pad area of 1.6 x 1.6” (40 x 40 mm) per Fig. 5
3. Measured on 8.3ms single half sine-wave or equivalent square wave, duty cycle = 4 pulses per minute maximum
4. V
F
=3.5 V for devices of V
(BR)
<220V, and V
F
=5.0 Volt max. for devices of V
(BR)
>220V
593