PLED Open LED Protectors
PLED Unidirectional Series
RoHS
PLED Unidirectional Series (PLEDxUx)
Description
PLED Unidirectional Series (PLEDxUx Series) open LED
protectors provide a switching electronic shunt path around
a single LED that fails as an open circuit. This ensures
the remaining string of LEDs will continue to function
even though a single LED in the string has failed open.
It also provides reverse battery or reverse power polarity
protection.
PLED Unidirectional Series devices were designed to
enable higher reliability in outdoor LED lighting applications
such as street lighting, outdoor signage, aircraft runway
lighting, roadside warning lights and other applications.
Compatible with one, two and three watt LEDs that have
a nominal 3V forward characteristic, PLED Unidirectional
Series devices are available in two surface mount packages,
the DO-214AA and the Quad Flat Pak No-lead (QFN). The
QFN’s low profile, chip scale package (CSP) is ideal for
dense board applications.
Agency Approvals
Agency
Agency File Number
E133083
Schematic Symbol
Features
• Fast switching
• IEC-61000-4-2 ESD 30kV
(Air), 30kV (Contact)
MT2
Cathode
(bar marking side)
• Reverse Battery/Power
Protection
• ESD protection of data
lines in accordance with
IEC 61000-4-2 (IEC801-2
• Automatically resets after
power cycle
Control
Circuit
• Compatible with PWM
frequencies up to 10 kHz
• Available in low profile,
small footprint QFN
and Standard DO214AA
packages
• RoHS compliant and
halogen-free
MT1
• Compatible with industrial • Recognized to UL 497B
lighting environments
as an Isolated Loop Circuit
Protector
Electrical Characteristics (All parameters are measured atTA=25°C unless otherwise noted)
VBR
Breakdown
VDRM
Breakdown
Critical rate of
rise dV/dt
1
IH
IS
IT@VT
VT
IF@VF
VF
IO
Part Number
Marking
Volts
Volts
Min
6
mAmps mAmps
Amps
Max
1.0
Volts
Max
1.2
Amps
Max
1.0
Volts
Max
1.0
Amps
Min
1.0
Volts
Max
Min
6
Max
16
Max
30
30
30
30
30
30
30
30
30
Max
50
50
50
50
50
50
50
50
50
PLED6UQ12
PLED6US
PL6U
PL6U
6
16
6
1.0
1.2
1.0
1.0
1.0
PLED9UQ12
PLED9US
PL9U
9
18
9
1.0
1.2
1.0
1.0
1.0
PL9U
9
18
9
1.0
1.2
1.0
1.0
1.0
PLED13UQ12
PLED13US
PLED18UQ12
PLED18US
PLED35US
Note:
PL13U
PL13U
PL18U
PL18U
PL35U
13
13
18
18
35
26
26
33
33
50
13
13
18
18
35
1.0
1.2
1.0
1.0
1.0
250V/µs
1.0
1.2
1.0
1.0
1.0
1.0
1.2
1.0
1.0
1.0
1.0
1.2
1.0
1.0
1.0
1.0
1.2
1.0
1.0
1.0
1. IO- Operation current tested @ aluminum boards, ambient temp 85°C
© 2020 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 05/01/20