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B59549A0135A020

P1-P3P4-P6P7-P9
PTC thermistors for motor starting
Metallized disks for low power consumption
Series/Type: B595**
Date: January 2016
© EPCOS AG 2016. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
Applications
Time delay in turning off the auxiliary winding
of single-phase AC motors
Features
Metallization: CrNi (sputtered) + Ag
(screen-printed)
Excellent long-term reliability
Suitable for clamp contacting
For approvals see table below
RoHS-compatible
Delivery mode
Bulk
Dimensional drawing
General technical data
Switching cycles N > 100000
Operating temperature range (V = 0) T
op
+5/+80 °C
Operating temperature range (V = V
max
) T
op
+5/+80 °C
Electrical specifications and ordering codes
Type
I
max
A
V
max
V
T
ref
(typ.)
°C
t
S
1)
s
V
BD
2)
V
R
R
±∆R
R
(V
PTC
≤ 2.5 V)
Ω
Ordering code
1) Measured at V = V
max
and I = 0.8 I
max
2) PTC clamped between crown contacts (diameter: 2 mm).
V
R
= 120 V
RMS
A546 12 180 135 0.45 > 360 4.70 ±20% B59546A0135A020
A548 12 200 135 0.30 > 400 6.80 ±20% B59548A0135A020
V
R
= 230 V
RMS
A551 5 400 135 0.25 > 710 47 ±20% B59551A0135A020
A549 8 350 135 0.30 > 640 22 ±20% B59549A0135A020
A550 8 355 135 0.25 > 700 33 ±20% B59550A0135A020
A556 8 350 135 0.35 > 600 15 ±20% B59556A0135A020
Motor starting
Low power consumption
Page 2 of 9Please read Cautions and warnings and
Important notes at the end of this document.
1) For testing all PTC thermistor disks are equiped with an EPCOS housing.
Approvals
Type UL IECQ VDE
A546 X X X
A548 X
A549 X
A550 X X X
A551 X
A556 X X X
UL approval to UL 1434 (file number E69802)
IECQ certified in accordance with IEC 60738-1 (certificate number 101-QA-5)
VDE approval (certificate number 87406)
Reliability data
Test
1)
Standard Test conditions ∆R
25
/R
25
Electrical endurance,
cycling
IEC 60738-1 Room temperature, V
max
; I
max
Number of cycles: 100 000
< 25%
Electrical endurance,
constant
IEC 60738-1 Storage at V
max
and T
op,max
(@ V
max
)
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
< 20%
Rapid change
of temperature
IEC 60738-1 T
1
= T
op,min
(0 V), T
2
= T
op,max
(0 V)
Number of cycles: 5
Test duration: 30 min
Test according to IEC 60068-2-14, test Na
< 20%
Climatic sequence IEC 60738-1 Dry heat: T = T
op,max
(0 V)
Test duration: 16 h
Damp heat first cycle
Cold: T = T
op,min
(0 V)
Test duration: 2 h
Damp heat 5 cycles
Tests performed according to
IEC 60068-2-30
< 25%
Motor starting
Low power consumption
Page 3 of 9Please read Cautions and warnings and
Important notes at the end of this document.
P1-P3P4-P6P7-P9

B59549A0135A020

Mfr. #:
Buy B59549A0135A020
Manufacturer:
EPCOS / TDK
Description:
Thermistors - PTC 135A 20 16.0X2.5 PTC Thermistor 549A
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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