Ceramic transient voltage suppressors
SMD disk varistors for telecom applications
Series/Type:
Date:
November 2010
© EPCOS AG 2010. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
SMD disk varistors (CU varistors)
Telecom series
EPCOS type designation system for SMD disk varistor telecom series
CU
Construction:
CU Encapsulated chip
Case sizes:
4032 40 x 32
Varistor voltage tolerance:
S Special tolerance
4032
S
95
A
G2
Maximum RMS operating voltage (V
RMS
):
60 60 V
95 95 V
A
Special tolerance
Taping mode:
G2 Taped, 330-mm reel
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 30
SMD disk varistors (CU varistors)
Telecom series
Features
High surge voltage capability up to 2 kV for 10/700 µs
(acc. to German telecom administration standards)
High surge load capability acc. to IEC 61000-4-5
Matched to line conditions with or without superimposed ringing voltages
PSpice models available
RoHS-compatible
Applications
EMI protection for:
Line cards in switching exchange systems
Terminal devices such as telephones, fax, modems
xDSL, PBX, DECT lines
Design
Cylindrical varistor element, encapsulated.
Encapsulation: thermoplastic, flame-retardant to UL 94 V-0.
Termination: tinned copper alloy, suitable for lead-free wave and reflow soldering, and
compatible with tin/lead solder.
V/I characteristics and derating curves
V/I and derating curves are attached to the data sheet. The curves are sorted by V
RMS
and
then by case size, which is included in the type designation.
General technical data
Maximum RMS operating voltage
Maximum DC operating voltage
Maximum surge current
Maximum energy absorption
Maximum clamping voltage
Operating temperature
Storage temperature
V
RMS,max
V
DC,max
(10 pulses, 10/700 µs) I
surge,max
(2 ms)
W
max
(8/20 µs)
V
clamp,max
T
op
LCT/UCT
60 ... 95
85 ... 125
45
4800 ... 7600
200 ... 270
40/+85
40/+125
V
V
A
mJ
V
°C
°C
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 30
SMD disk varistors (CU varistors)
Telecom series
Temperature derating
Climatic category:
40/+85
°C
Electrical specifications and ordering codes
Maximum ratings (T
op,max
= 85
°C)
Type
V
RMS,max
V
DC,max
I
surge,max
(10 pulses,
10/700 µs)
V
V
A
B72660M0600S172 60
85
45
B72660M0950S172 95
125
45
Ordering code
I
surge,max
W
max
P
diss,max
(8/20 µs) (2 ms)
A
1200
1200
mJ
mW
4800 250
7600 250
CU4032S60AG2
CU4032S95AG2
Characteristics (T
A
= 25
°C)
Type
V
V
(1 mA)
V
100
150
∆V
V
V
clamp,max
I
clamp
(8/20 µs)
A
45
45
C
typ
(1 kHz, 1 V)
pF
480
260
CU4032S60AG2
CU4032S95AG2
%
V
+18/ 1 200
+10/ 2 270
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 30
SMD disk varistors (CU varistors)
Telecom series
Dimensional drawing
Dimensions in mm
Chip size V
RMS,max
EIA in mm
4032
60, 95
l
w
h
3.2
±0.3
10.2
±0.3
8.0
±0.3
Recommended solder pad layout
Dimensions in mm
Chip size
EIA in mm
4032
A
3.50
B
2.80
C
6.50
Delivery mode
EIA case size Taping
4032
4032
Blister
Blister
Reel size
mm
330
330
Packing unit Type
pcs.
1000
CU4032S60AG2
1000
CU4032S95AG2
Ordering code
B72660M0600S172
B72660M0950S172
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 30
Analogue and Mixed Signal
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