PTC thermistors for overcurrent
protection
SMDs, EIA size 1210,
24 V, 63 V and 265 V
Series/Type:
B5960*, B59707, B59807
Date:
March 2006
EPCOS AG 2006. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
Applications
Overcurrent protection
Short-circuit protection
Features
Thermistor chip with lead-free tinned
terminations
Small size
Short response times
Suitable for reflow soldering only
Suitable for automatic placement
RoHS-compatible
Delivery mode
Blister tape, 180-mm reel
Dimensional drawing
Dimensions in mm
Geometry of solder pad
Recommended maximum dimensions (mm)
General technical data
Switching cycles
N
100
Tolerance of R
R
R
R
25
%
Operating temperature range
(V = 0)
T
op
40/+125
C
Operating temperature range
(V = V
max
)
T
op
0/+60
C
Overcurrent protection
SMDs, EIA size 1210, 24 V, 63 V and 265 V
A606, A607, A707, A807
Page 2 of 9
Please read Important notes and
Cautions and warnings at the end of this document.
1) Measured on component soldered to standardized PCB
Electrical specifications and ordering codes
Type
I
R
1)
mA
I
S
1)
mA
I
Smax
(V = V
max
)
A
T
ref
C
R
R
R
min
Ordering code
V
max
= 30 VDC or VAC , V
R
= 24 VDC or VAC
A606
90
180
0.5
110
27
17
B59606A0110A062
A607
70
130
0.4
120
55
30
B59607A0120A062
V
max
= 80 VDC or VAC , V
R
= 63 VDC or VAC
A707
50
90
0.3
120
125
75
B59707A0120A062
V
max
= 265 VDC or VAC , V
R
= 230 VDC or VAC
A807
15
40
0.2
90
400
200
B59807A0090A062
Overcurrent protection
SMDs, EIA size 1210, 24 V, 63 V and 265 V
A606, A607, A707, A807
Page 3 of 9
Please read Important notes and
Cautions and warnings at the end of this document.
Reliability data
Test
Standard
Test conditions
R
25
/R
25
Electrical endurance,
cycling
IEC 60738-1
Room temperature, I
Smax;
V
max
Number of cycles: 100
< 25%
Electrical endurance,
constant
IEC 60738-1
Storage at V
max
/T
op
Test duration : 1000 h
< 25%
Damp heat
IEC 60738-1
Temperature of air: 40
C
Relative humidity of air: 93%
Duration: 56 days
Test according to IEC 60068-2-78
< 10%
Rapid change
of temperature
IEC 60738-1
T = T
LCT
, T = T
UCT
Number of cycles: 5
Test duration: 30 min
Test according to IEC 60068-2-14, Test Na
< 10%
Vibration
IEC 60738-1
Frequency range: 10 to 55 Hz
Displacement amplitude: 0.75 mm
Test duration: 3 2 h
Test according to IEC 60028-2-6, Test Fc
< 5%
Bump
IEC 60738-1
Pulse shape: half-sine
Acceleration: 50 g
Pulse duration: 1 ms; 6 3 pulses
Test according to IEC 60068-2-29
< 5%
Climatic sequence
IEC 60738-1
Dry heat: T = T
UCT
Test duration: 16 h
Damp heat first cycle
Cold: T = T
LCT
Test duration: 2 h
Damp heat 5 cycles
Tests performed according to
IEC 60068-2-30
< 10%
Bending test
EN 130000/4.35
Components reflow-soldered to test board
Maximum bending: 2 mm
< 10%
Overcurrent protection
SMDs, EIA size 1210, 24 V, 63 V and 265 V
A606, A607, A707, A807
Page 4 of 9
Please read Important notes and
Cautions and warnings at the end of this document.
Characteristics (typical) for A606, A607 and A707
PTC resistance R
PTC
versus
PTC temperature T
PTC
(measured at low signal voltage)
Switching time t
S
versus switching current I
S
(measured at 25
C in still air)
Rated current I
R
versus ambient temperature T
A
(measured in still air)
Overcurrent protection
SMDs, EIA size 1210, 24 V, 63 V and 265 V
A606, A607, A707, A807
Page 5 of 9
Please read Important notes and
Cautions and warnings at the end of this document.
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