©2012 Littelfuse, Inc.
Specifications are subject to change without notice.
Transient Voltage Suppression Diodes
107
Revised: April 17, 2012
Axial Leaded – 1500W > 1.5KE series
1.5KE Series
Please refer to http://www.Littelfuse.com/series/1.5KE.html for current information.
AGENCY AGENCY FILE NUMBER
E128662/E230531
1.5KE Series
TVS devices are ideal for the protection of I/O interfaces,
VCC bus and other vulnerable circuits used in telecom,
computer, industrial and consumer electronic applications.
Applications
Features
The 1.5KE Series is designed specifically to protect
sensitive electronic equipment from voltage transients
induced by lightning and other transient voltage events.
Description
Parameter Symbol Value Unit
Peak Pulse Power Dissipation by
10x1000μs test waveform (Fig.2)
(Note 1)
PPPM 1500 W
Steady State Power Dissipation on
inifinite heat sink at TL=75ºC (Fig. 6) PD6.5 W
Peak Forward Surge Current, 8.3ms
Single Half Sine Wave Unidirectional
only (Note 2)
IFSM 200 A
Maximum Instantaneous Forward
Voltage at 100A for Unidirectional
only (Note 3)
VF3.5/5.0 V
Operating Junction and Storage
Temperature Range TJ, TSTG -55 to 175 °C
Typical Thermal Resistance Junction
to Lead RuJL 15 °C/W
Typical Thermal Resistance Junction
to Ambient RuJA 75 °C/W
Notes:
1. Non-repetitive current pulse , per Fig. 4 and derated above TA = 25OC per Fig. 3.
2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 per
minute maximum.
3. VF<3.5V for devices of VBR _
<
200V and VF<5.0V for devices of VBR _
>
201V.
Maximum Ratings and Thermal Characteristics
(TA=25OC unless otherwise noted)
Agency Approvals
• Typical maximum
temperature coefficient
ΔVBR = 0.1% x VBR@25°C x ΔT
• Glass passivated chip
junction in DO-201
Package
• 1500W peak pulse
capability at 10×1000μs
waveform, repetition rate
(duty cycles):0.01%
• Fast response time:
typically less than 1.0ps
from 0 Volts to BV min
• Excellent clamping
capability
• Typical failure mode is
short from over-specified
voltage or current
• Whisker test is conducted
based on JEDEC
JESD201A per its table 4a
and 4c
• IEC-61000-4-2 ESD
15kV(Air), 8kV (Contact)
• ESD protection of data
lines in accordance with
IEC 61000-4-2 (IEC801-2)
• EFT protection of data
lines in accordance with
IEC 61000-4-4 (IEC801-4)
• Low incremental surge
resistance
• Typical IR less than 1μA
above 13V
• High temperature
soldering guaranteed:
260°C/40 seconds /
0.375”,(9.5mm) lead
length, 5 lbs., (2.3kg)
tension
• Plastic package has
underwriters laboratory
flammability classification
94V-O
• Matee tin lead–free plated
• Halogen free and RoHS
compliant
1.5KE Series
RoHS
1
