Extended
V
oltage Range
1.0 (25.4)
MIN.
1.0 (25.4)
MIN.
0.375 (9.5)
0.285 (7.2)
0.210 (5.3)
0.190 (4.8)
DIA.
0.042 (1.07)
0.038 (0.96)
DIA.
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 (TA = 25°C unless otherwise noted)
Parameter Symbol Limit Unit
Peak power dissipation with a 10/1000µs waveform
(1)
(Fig. 1) PPPM 1500 W
Peak pulse current wih a 10/1000µs waveform
(1)
IPPM See Next Table A
Steady state power dissipation
PM(AV) 6.5 W
at TL = 75
O
C, lead lengths 0.375” (9.5mm)
(2)
Peak forward surge current, 8.3ms
IFSM 200 A
single half sine-wave unidirectional only
(3)
Maximum instantaneous forward voltage
VF 3.5/5.0 V
at 100A for unidirectional only
(4)
Typical thermal resistance junction-to-lead RθJL 20 °C/W
Typical thermal resistance junction-to-ambient RθJA 75 °C/W
Operating junction and storage temperature range TJ, TSTG –55 to +175
O
C
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 1.5KE220(A) & below; VF = 5.0V for 1.5KE250(A) & above
Dimensions in inches
and (millimeters)
Case Style 1.5KE
V(BR) Unidirectional 6.8 to 540V
V(BR) Bidirectional 6.8 to 440V
Peak Pulse Power 1500W
Features
• Underwriters Laboratory Recognition under UL standard
for safety 497B: Isolated Loop Circuit Protection
• Glass passivated junction
• 1500W peak pulse power capabililty on 10/1000µs
waveform, repetition rate (duty cycle): 0.05%
• Excellent clamping capability
• Low incremental surge resistance
• Very fast response time
• Includes 1N6267 thru 1N6303A
Mechanical Data
Case: Molded plastic body over passivated junction
Terminals: Plated axial leads, solderable per
MIL-STD-750, Method 2026
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
Mounting Position: Any Weight: 0.045 oz., 1.2 g
Flammability: Epoxy is rated UL 94V-0
Packaging Codes – Options (Antistatic):
51 – 1K per Bulk box, 10K/carton
54 – 1.4K per 13" paper Reel
(52mm horiz. tape), 4.2K/carton
73 – 1K per horiz. tape & Ammo box, 10K/carton
TRANSZORB
®
Transient Voltage Suppressors
1.5KE Series and 1N6267 thru 1N6303A
Vishay Semiconductors
formerly General Semiconductor
Document Number 88301 www.vishay.com
30-Oct-02 1