For further information please contact your EPCOS sales office.
3
ThermoFuse Varistors, T Series
Features
zz
Terminal wires in line for easy assembly
zz
Rated voltages of 130 to 1000 V
RMS
zz
Robust and flame-retardant housing for physical
zz
Disconnection function according to limited current
protection of adjacent components
zz
mm spring opening distance for reliable
5
disconnection from power circuit
abnormal overvoltage test in UL 1449, 3
rd
edition,
section 39.4, and as per thermal stability test in
IEC 61643, edition 1 (2011), section 8.3.5.2
zz
T14/ T20 pin compatible for same PCB layout and
different surge current levels (130 up to 420 V)
zz
Flammability according to UL 94 V-0
Dimensional drawings in mm
T14
V
RMS
= 130 … 420 V
w
T 14
K 420
14 31
1
2
3
th
Fuse
lead
Monitor
lead
h
e e
a
ød
w
max
h
max
th
max
ød
e
a
L
= 17
= 21.6
= 13
= 0.8±0.1
= 5±0.5
= 4±0.5
= 5±0.5
L
VAR0705-M
T20
V
RMS
= 130 … 420 V
T20
V
RMS
= 460 … 1000 V
w
Fuse
lead
Monitor
lead
L
th
w
th
Monitor
lead
Fuse
lead
h
T 20
K 420
14 31
1
2
3
e e
a
ød
1
2
3
L
h
14 31
w
max
h
max
th
max
ød
e
a
L
= 22
= 26
= 12
= 0.8±0.1
= 5±0.5
= 4±0.5
= 5±0.5
VAR0704-K
T 20
K1000
e
b
e
a
ød
w
max
h
max
th
max
th
max
a
a
b
e
L
ød
ød
= 27.5
= 27.5
= 13.6 (T20K460...625)
= 18.5 (T20K680...1000)
= 4.2±0.5 (T20K460...625)
= 4.5±0.5 (T20K680...1000)
= 7±0.5
= 7.5±0.5
= 10±0.5
= 1±0.05 (pin1, 2)
= 0.8±0.1 (pin3)
VAR0703-J
Circuit diagram
Typical application
Line
Line fuse
Lead configuration
Fuse lead
ThermoFuse
ThermoFuse
υ
D
To protected device
LED
R
Neutral
VAR0602-S-E
υ
Monitor lead
Varistor
Varistor lead
VAR0706-N
Structure of ordering codes:
The ordering code for one and the same product can be represented differently in data sheets, data books, other publications and the website of EPCOS, or in
order-related documents such as shipping notes, order confirmations and product labels.
The varying representations of the ordering codes are due to different processes employed and
do not affect the specifications of the respective products.
Detailed information can be found on the Internet under www.epcos.com/orderingcodes.
Important information:
Some parts of this publication contain statements about the suitability of our products for certain areas of application. These statements are based on
our knowledge of typical requirements that are often placed on our products. We expressly point out that these statements cannot be regarded as binding statements about the
suitability of our products for a particular customer application. It is incumbent on the customer to check and decide whether a product is suitable for use in a particular application.
This publication is only a brief product survey which may be changed from time to time. Our products are described in detail in our data sheets. The
Important notes
(www.epcos.com/ImportantNotes) and the product-specific
Cautions and warnings
must be observed. All relevant information is available through our sales offices.
