PTC Thermistors
for Telecom
Line Card Applications,
SMDs
Series/Type: B590**
Release:
Date:
©
EPCOS AG 2003. Reproduction, publication and dissemination of this data sheet, enclosures hereto and the information con-
tained therein without EPCOS' prior express consent is prohibited.
Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and Electronics In-
dustry recommended by the ZVEI (German Electrical and Electronic Manufacturers' Association), unless otherwise agreed.
Telecom
Line Card Applications, SMDs
Applications
Overcurrent protection for line cards
Features
Compliant with ITU-T K20, K21, K45
basic level lightning surges (10/700 µs)
basic level power induction (600 V, 1 A, 0.2 s)
power contact criteria A/B (230 V, 15 min.)
Suitable for continuous connection to mains voltages of 110/230 VAC
in tripped (high ohmic) condition
For surface mounting onto PCB
Marked with manufacturer’s logo and type designation
Narrow resistance tolerance
UL approval to UL 1434 with V
max
= 245 V and V
R
= 220 V (file number E69802)
Options
Alternative tolerances and resistances on request
Delivery mode
Blister tape, 330-mm reel
Dimensional drawings
Version: Gamma L
Version: Gamma I
B590**
G10**
Dimensions in mm
2
Telecom
Line Card Applications, SMDs
Recommended solder pads
Version: Gamma L
Version: Gamma I
B590**
G10**
Dimensions in mm
General technical data
Rated voltage
Max. switching voltage
Tolerance of R
R
Resistance matching per reel
Operating temperature range
V
R
V
Smax
∆R
R
R
25,match
T
op
T
op
60
265
±20
±0.5
25/+125
0/+60
VDC
VAC
%
Ω
°C
°C
(V = 0)
(V = 230 V)
Electrical specifications and ordering codes
Type
R
R
R
min
I
R
@
25
°C
mA
180
150
130
90
110
100
I
R
@
70
°C
mA
130
105
85
50
70
70
I
S
@
25
°C
mA
360
300
270
190
250
250
I
Smax
@
230 VAC
A
1.0
1.5
2.8
2.5
4.0
4.6
t
S
Ordering code
@ I
Smax,
230 VAC
s
< 5.0
< 2.0
< 0.3
< 0.2
< 0.2
< 0.2
B59085G1120A161
B59083G1120A161
B59080G1120B262
B59084G1120A161
B59040G1120B161
B59012G1120A161
Ω
Gamma I
G1085
G1083
G1080
G1084
Gamma L
G1040
G1012
10
16
25
50
25
35
Ω
6.5
10
15
30
16
23
3
Telecom
Line Card Applications, SMDs
Characteristics (typical)
PTC resistance R
PTC
versus
PTC temperature T
PTC
(measured at low signal voltage)
PTC resistance R
PTC
versus
PTC temperature T
PTC
(measured at low signal voltage)
B590**
G10**
Rated current I
R
versus ambient temperature T
A
(measured in still air)
4
RF/Wirelessly
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