P4KE Series
Vishay Semiconductors
formerly General Semiconductor
TRANSZORB® Transient Voltage Suppressors
V(BR) Unidirectional 6.8 to 540V
V
(BR) Bidirectional 6.8 to 440V
Peak Pulse Power 400W
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
0.107 (2.7)
0.080 (2.0)
DIA.
Mechanical Data
Case: JEDEC DO-204AL molded plastic body over
passivated junction
0.205 (5.2)
0.160 (4.1)
Terminals: Axial leads, solderable per
MIL-STD-750, Method 2026
Dimensions in inches
and (millimeters)
High temperature soldering guaranteed: 265°C/10 seconds,
0.375" (9.5mm) lead length, 5lbs. (2.3 kg) tension
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: 0.012 oz., 0.3 g
Packaging Codes – Options (Antistatic):
51 – 1K per Bulk box, 10K/carton
0.034 (0.86)
0.028 (0.71)
DIA.
54 – 5.5K per 13" paper Reel
(52mm horiz. tape), 16.5K/carton
73 – 3K per horiz. tape & Ammo box, 30K/carton
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
400
Unit
W
Peak power dissipation with a 10/1000µs waveform(1) (Fig. 1)
Peak pulse current wih a 10/1000µs waveform(1)
PPPM
IPPM
See Next Table
A
Steady state power dissipation
PM(AV)
IFSM
VF
1.0
40
W
A
at TL = 75°C, lead lengths 0.375" (9.5mm)(2)
Peak forward surge current, 8.3ms
single half sine-wave unidirectional only(3)
Maximum instantaneous forward voltage
at 25A for unidirectional only(4)
3.5/5.0
V
Typical thermal resistance junction-to-lead
RθJL
RθJA
60
°C/W
°C/W
°C
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 = 3.5V for P4KE220(A) & below; VF = 5.0V for P4KE250(A) & above
Document Number 88365
09-Oct-02
www.vishay.com
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