Littelfuse 1.5KE Series User Manual

5ke series, Transient voltage suppression diodes

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Transient Voltage Suppression Diodes

© 2014 Littelfuse, Inc.

Specifications are subject to change without notice.
Revised: 01/24/14

Axial Leaded – 1500W > 1.5KE series

AGENCY

AGENCY FILE NUMBER

E128662/E230531

TVS devices are ideal for the protection of I/O interfaces,
V

CC

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

10/1000μs Test Waveform (Fig.2)

(Note 1)

P

PPM

1500

W

Steady State Power Dissipation on

Inifinite Heat Sink at T

L

=75ºC (Fig. 6)

P

D

6.5

W

Peak Forward Surge Current, 8.3ms

Single Half Sine Wave Unidirectional

Only (Note 2)

I

FSM

200

A

Maximum Instantaneous Forward

Voltage at 100A for Unidirectional

Only (Note 3)

V

F

3.5/5.0

V

Operating Junction and Storage

Temperature Range

T

J

, T

STG

-55 to 150

°C

Typical Thermal Resistance Junction

to Lead

R

uJL

15

°C/W

Typical Thermal Resistance Junction

to Ambient

R

uJA

75

°C/W

Notes:
1. Non-repetitive current pulse , per Fig. 4 and derated above T

A

= 25°C per Fig. 3.

2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 per

minute maximum.

3. V

F

<3.5V for devices of V

BR

_

<

200V and V

F

<5.0V for devices of V

BR

_

>

201V.

Maximum Ratings and Thermal Characteristics
(T

A

=25°C unless otherwise noted)

Agency Approvals

V

BR

@T

J

= V

BR

@25°C × (1+

α

T

x (T

J

- 25))

(αT: Temperature Coefficient)

• 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 I

R

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

• Matte tin lead–free plated
• Halogen free and RoHS

compliant

RoHS

1.5KE Series

Bi-directional

Uni-directional

Functional Diagram

Bi-directional

Uni-directional

Cathode

Anode

Additional Information

Datasheet

Samples

Resources

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