PTCLL Datasheet

PTCLL
www.vishay.com
Vishay BCcomponents
PTC Thermistors, Time Delay for Lighting
FEATURES
• Reliable lamp starting, due to well defined
inrush-current generated time delay
• Accurate resistance for ease of circuit design
• Small size and durable
• Available bulk-packed or taped-on-reel
• Long life: More than 20 000 starts for a 20 W
CFL lamp
QUICK REFERENCE DATA
PARAMETER
Rated voltage (RMS)
Nominal switching current
Resistance at 25 °C (R25)
Tolerance on R25 value
Maximum overload current Iol
Tripping time
Operating temperature range
at rated voltage
VALUE
80 to 200
150 to 500
100 to 625
20 to 30
0.5 to 1.0
0.3 to 1
UNIT
VRMS
mA
Ω
%
A
s
-20 to 105
°C
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
APPLICATIONS
Fluorescent lighting and lighting ballasts for:
• CFL 5 to 25 W range
• TL HF-ballasts
MOUNTING
DESCRIPTION
Positive temperature coefficient (PTC) thermistors for
overload protection have proved to be the ideal electronic
ballast component for increased lamp life-time.
When the rectified mains is first applied, the PTC thermistor
is cold, so its resistance is low. The lamp voltage will be
below the necessary ignition value, so the current will flow
through the cathodes, heating them to their emission
temperature. At the same time, the PTC thermistor will heat
up to its switch temperature, whereupon its resistance will
rise rapidly, allowing the lamp voltage to reach its ignition
value and light the lamp.
Once the lamp is lit, the cathodes are fed by a
high-frequency lamp supply, to avoid flicker and improve
efficiency. The PTC thermistor plays no further part until the
lamp is switched off, whereupon it is ready to resume its
smooth-starting function.
We supply a range of lighting PTC thermistors for this
application offering a wide choice of voltage and switch
times.
The leads are suitable for soldering in any position. The
lacquer may cover the leads up to 1.0 mm from the seating
plane.
ELECTRICAL DATA AND ORDERING INFORMATION
R25
(Ω)
MIN.
MAX.
SWITCH
TEMPERATURE
(°C)
500
185
75
225
75
750
300
125
375
125
≈ 110
≈ 120
≈ 80
≈ 105
≈ 105
MAXIMUM
PEAK VOLTAGE (4)
(Vpeak)
700
700
700
900
1 000
TYPICAL (1)
TRIP TIME at 25 °C
ttrip
at It
(s)
(mA)
0.4
200
0.5
300
0.7
300
0.75
300
0.85
500
CATALOG NUMBER
SAP CODING
PTCLL05P131TBE (2)
PTCLL05P211TTE (2)
PTCLL05P251TTE (2)
PTCLL07P261VTE (3)
PTCLL07P421WTE (3)
Notes
(1) Ignition time of the lamp approximately equals the tripping time.
(2) Specific for CFL lamp electronic starter.
(3) Specific for HF-TL ballast.
(4) Highest lamp ignition voltage should be smaller than the maximum allowable peak voltage.
Document Number: 29071
1
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Revision: 30-Nov-15
PTCLL
www.vishay.com
Vishay BCcomponents
TYPICAL ELECTRONIC BALLAST CIRCUIT
C
Fluorescent
lamp
FET
switch
36 kHz
lamp
supply
L
Rectified mains
(310 VDC for
230 VAC mains)
Cathode Cathode
C
FET
switch
C
PTC Thermistor
DIMENSIONS in millimeters
T
D
T
P
P
D
P
h
h
H3
H3
H2
d
W2
H2
H0 H 1
L
W0 W1
W
F
P0
L1
P1
d
F
D0
T
t
Dmax.
Tmax.
H3
L1
WEIGHT
(g)
FIGURES
PACKAGING
SPQ
MATERIAL ORDERING
NUMBER
5.4
4.5
10
3.5 ± 0.5
≈ 0.33
Fig. 1
Bulk
500
PTCLL05P131TBE
5.4
4.5
9
-
≈ 0.45
Fig. 2
On tape
1500
PTCLL05P211TTE
5.4
4.5
10
-
≈ 0.45
Fig. 2
On tape
1500
PTCLL05P251TTE
7.0
5.0
12
-
≈ 0.66
Fig. 2
On tape
1500
PTCLL07P261VTE
7.0
5.0
12
-
≈ 0.66
Fig. 2
On tape
1500
PTCLL07P421WTE
TAPE AND OTHER DEVICE DIMENSIONS in millimeters according IEC 60286 for tape on reel
SYMBOL
PARAMETER
DIMENSIONS
TOLERANCE
d
Lead diameter
0.6
± 0.05
P
Pitch between thermistors
12.7
±1
F
Lead to lead distance guaranteed between component and tape
5
+0.5 / -0.2
H2
Component body to seating plane
4
±1
H0
Lead-wire clinch height
16
± 0.5
Document Number: 29071
2
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Revision: 30-Nov-15
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Revision: 02-Oct-12
1
Document Number: 91000