P4KE6.8 thru P4KE440CA
TRANSZORB® Transient Voltage Suppressors
Peak Pulse Power 400W
Breakdown Voltage 6.8 to 440V
DO-204AL (DO-41 Plastic)
Features
• Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
• Glass passivated junction
• 400W peak pulse power capabililty on 10/1000µs wave-
form, repetition rate (duty cycle): 0.01%
• Excellent clamping capability
1.0 (25.4)
MIN.
• Low incremental surge resistance
• Very fast response time
• High temperature soldering guaranteed: 265OC/10 seconds,
0.375” (9.5mm) lead length, 5lbs. (2.3 kg) tension
0.107 (2.7)
0.080 (2.0)
DIA.
0.205 (5.2)
0.160 (4.1)
Mechanical Data
Dimensions in inches
and (millimeters)
Case: JEDEC DO-204AL molded plastic body over
passivated junction
Terminals: 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
1.0 (25.4)
MIN.
Mounting Position: Any Weight: 0.012oz., 0.3g
0.034 (0.86)
Packaging codes/options:
0.028 (0.71)
DIA.
1/1K per Bulk Box, 11K/box
4/5.5K per 13” Reel (52mm tape), 16.5K/box
Devices for Bidirectional Applications
For bi-directional, use C or CA suffix for types P4KE6.8 thru types P4KE440
(e.g. P4KE6.8C, P4KE440CA). Electrical characteristics apply in both directions.
Maximum Ratings and Characteristics(TA = 25°C unless otherwise noted)
Parameter
Symbol
Limit
Minimum 400
See Next Table
1.0
Unit
W
Peak power dissipation with a 10/1000µs waveform(1)
(Fig. 1)
PPPM
Peak pulse current wih a 10/1000µs waveform(1)
IPPM
A
Steady state power dissipation
PM(AV)
W
at TL = 75OC, lead lengths 0.375” (9.5mm)(2)
Peak forward surge current, 8.3ms
single half sine-wave superimposed on rated load
IFSM
40
A
V
(JEDEC Method) unidirectional only(3)
Maximum instantaneous forward voltage
at 25A for unidirectional only(4)
VF
3.5/5.0
Typical thermal resistance junction-to-lead
RθJL
RθJA
60
°C/W
°C/W
OC
Typ. thermal resistance junction-to-ambient, LLead = 10mm
Operating junction and storage temperature range
100
TJ, TSTG
–55 to +175
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 1.6 x 1.6” (40 x 40mm) per Fig. 5
(3) Measured on 8.3ms single half sine-wave or equivalent square wave, duty cycle = 4 pulses per minute maximum
(4) VF = 3.5 V for devices of V(BR) < 220V, and VF = 5.0 Volt max. for devices of V(BR) > 220V
10/24/00