PLED Open LED Protectors
PLEDxSW Series
PLEDxSW Series -
White Body
Description
RoHS
PLEDxSW Series open LED protectors provide a switching
electronic shunt path when an LED in an LED string fails as
an open circuit. This ensures that the remaining string of
LEDs will continue to function if a single LED does not.
PLEDxSW Series devices were designed to enable higher
reliability in indoor LED lighting applications such as
advertisement lighting and other applications. Additionally,
they are molded from white material to make them less
visible in the LED fixture and the white molding also reflects
more light to improve overall light engine efficiency.
Agency Approvals
Agency
Agency File Number
E133083
Compatible with one, two and three watt LEDs that have
a nominal 3V forward characteristic, PLEDxSW Series
devices are available in SMB surface mount package. The
DO-214AA (SMB) low profile package is ideal for dense
board applications.
Schematic Symbol
Features & Benefits
• Fast switching
• Automatically resets after
power cycle
Control
Circuit
• Compatible with industrial
lighting environments
• Compatible with PWM
frequencies up to 30 kHz
• RoHS compliant and
halogen-free
• Low profile, small foot
print standard DO-214AA
package
Electrical Characteristics
(All parameters are measured at T=25°C unless otherwise noted)
V
BR
breakdown
Part Number
Marking
Min
PLED6SW
PLED9SW
PLED13SW
PLED18SW
PL6
PL9
PL13
PL18
6
9
13
18
Volts
Max
16
18
26
33
V
DRM
breakdown
Volts
Min
6
9
13
18
5
100
1.0
1.2
250V/µs
I
H
mAmps
Min
I
S
mAmps
Max
I
T
@V
T
Amps
Max
V
T
@ I
T
= 1
Amp
Volts
Max
Critical rate of
rise dV/dt
Volts
Max
©2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revision: 09/25/15
PLEDxSW Series
PLED Open LED Protectors
PLEDxSW Series
Thermal Considerations
Package
DO-214AA in White
Symbol
T
J
T
S
R
θ
JA
Parameter
Operating Junction Temperature Range
Storage Temperature Range
Thermal Resistance: Junction to Ambient
Value
-40 to +150
-65 to +150
DO-214AA: 90
1
DO-214AA: 40
2
Unit
°C
°C
°C/W
Notes:
1) Standard FR-4 PCB with Copper Pads (Recommended Size)
2) Aluminum PCB
Thickness: 1.6mm
Grade: 1-2 W/mK Thermal Conductivity
Trace thickness: 2 oz
Insulation layer thickness: 215 um
Solder Pad Dimensions:
2.0mm x 2.8mm (Recommended Size)
V-I Characteristics
+I
V
BR
vs. Junction Temperature
14
I
T
I
S
I
H
P e rc e n t o f V
BR
C h a n g e – %
12
10
8
6
4
2
0
-4
-6
-8
-40 -20
0
20
40
60
80
100 120 140 160
-V
V
T
V
DRM
V
BR
+V
25 ˚C
-I
Junction Temperature (T
J
) – ˚C
Normalized DC Holding Current vs. Case Temperature
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
-40 -20
0
20
40 60
80 100 120 140 160
LED Interference Test Circuit
Q1
i
H
(T
C
= 2 5 ˚C )
2.0
110 k
, 1/4 W
LED
Driver
i
H
, 1/4 W
25 ˚C
+
-
R a tio o f
V
bat
12 Vdc
PWM
Q2
2N2222
Control
Circuit
Case Temperature (T
C
) – ˚C
ON/OFF
Switch
PLED
©2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revision: 09/25/15
PLEDxSW Series
PLED Open LED Protectors
PLEDxSW Series
6 LEDs in Series 50% Duty Cycle 10kHz
5 LEDs and 1 PLED in Series 50% Duty Cycle 10kHz
Note: These two graphs show the current magnitude through the LED string with and without the PLED included. There is no noticeable effect on the LED current magnitude when the
PLED is included in the circuit as compared to the LED current magnitude when the PLED is not in the circuit. (The conversion factor for the test measurement in the graphs above is
10mA/mV for the Pearson coil measurement, therefore, the current magnitude in the first figure is 10mA*8.9 = 89mA, while the second figure is 91mA.)
PLED in the Off-State 10kHz
PLED device zeners and then turns fully on 10kHz
Channel 1: current through LEDs (318 mA)
Channel 2: voltage across PLED device (4.5 V)
Channel 1: current through LEDs (346 mA) and PLED device once it is fully turned on 2.5 μsec later
Channel 2: voltage across PLED device (21.3 V before PLED crowbars with 2 V drop)
©2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revision: 09/25/15
PLEDxSW Series
PLED Open LED Protectors
PLEDxSW Series
Soldering Parameters
Reflow Condition
- Temperature Min (T
s(min)
)
Pre Heat
- Temperature Max (T
s(max)
)
- Time (min to max) (t
s
)
Average ramp up rate (Liquidus Temp
(T
L
) to peak
T
S(max)
to T
L
- Ramp-up Rate
Reflow
- Temperature (T
L
) (Liquidus)
- Temperature (t
L
)
Pb – Free assembly
150°C
200°C
60 – 180 secs
3°C/second max
3°C/second max
217°C
60 – 150 seconds
260
+0/-5
°C
30 seconds
6°C/second max
8 minutes max
260°C
Peak Temperature (T
P
)
Time within 5°C of actual peak
Temperature (t
p
)
Ramp-down Rate
Time 25°C to peak Temperature (T
P
)
Do not exceed
Environmental Specifications
High Temperature
Voltage Blocking
Temperature Cycling
Biased Temperature &
Humidity
High Temperature
Storage
Low Temperature
Storage
Thermal Shock
Resistance to
Solder Heat
MIL
-STD-750: Method 1040, Condition A
80% min V
DRM
(VAC-peak), 150°C,
504 hours
MIL
-STD-750: Method 1051
-65°C to 150°C, 15-minute dwell,
100 cycles
EIA/JEDEC: JESD22-A101
80%V
DRM
, 85°C, 85%RH, 1008 hours
MIL
-STD-750: Method 1031
150°C, 1008 hours
-65°C, 1008 hours
MIL
-STD-750: Method 1056
0°C to 100°C, 5-minute dwell,
10-second transfer, 10 cycles
MIL
-STD-750: Method 2031
260°C, 10 seconds
Physical Specifications
Terminal Material
Terminal Finish
Body Material
Copper Alloy
100% Matte Tin Plated
UL recognized epoxy meeting flammability
classification 94V-0
Part Numbering System
Part Marking System
X
PLED
TYPE
LED Protector
SW
White Body
PACKAGE TYPE
S: DO-214AA
DO-214AA
PLx
XXXXX
V
DRM
6 Volts
9 Volts
13 Volts
18 Volts
Packaging
Package
S
©2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revision: 09/25/15
Description
D O - 2 1 4 AA
Packaging Quantity
2500
Industry Standard
EIA-481-1
PLEDxSW Series
PLED Open LED Protectors
PLEDxSW Series
Dimensions - DO-214 AA Package
B
D
CASE TEMPERATURE
MEASURING POINT
Dimensions
A
Inches
Min
0.130
0.201
0.077
0.159
0.030
0.075
0.002
0.077
0.006
Max
0.156
0.220
0.087
0.181
0.063
0.096
0.008
0.104
0.016
Millimeters
Min
3.30
5.10
1.95
4.05
0.75
1.90
0.05
1.95
0.15
Max
3.95
5.60
2.20
4.60
1.60
2.45
0.20
2.65
0.41
C
A
B
C
D
K
H
F
E
F
G
E
G
H
K
0.079"
(2.0mm)
0.110"
(2.8mm)
0.079"
(2.0mm)
Recommended solder pad layout
(Reference Only)
DO-214AA Embossed Carrier Reel Pack (RP)
Meets all EIA-481-1 Standards
0.157
(4.0)
Cathode bar on this side
0.472
(12.0)
0.36
(9.2)
0.315
(8.0)
0.059 DIA
(1.5)
12.99
(330.0)
Dimensions
are in inches
(and millimeters).
Cover tape
0.512 (13.0) Arbor
Hole Dia.
0.49
(12.4)
Direction of Feed
©2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revision: 09/25/15
PLEDxSW Series
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