24 ©2013 Littelfuse Automotive Aftermarket Circuit Protectionwww.littelfuse.com
Flashers
Littelfuse Flashers meet D.O.T., S.A.E. and all applicable state
and federal requirements.
Pin Configuration Key
X = Battery L = Lamp P = Pilot Light
-
+
THERMAL FLASHERS
Variable For Import Cars/Domestic Trucks
• Replaces most 12 volt, three terminal
flashers.
• Capacity
– Turn Signals: Flashes two to three 32 C.P.
standard or long-life lamps.
– Hazard Warning: Flashes two to six lamps.
• Separate pilot circuit and durable, heavy
duty thermal flashing mechanism for
increased reliability.
• Quality construction ensures continued
operation even under harsh temperature
and humidity environmental factors.
VOLTS
TERMINALS
LAMPS
BOXED CARDED
MATERIAL
#
CATALOG
#
MATERIAL
#
CATALOG
#
NEW PACKAGING
MATERIAL #
12 2 2-6 0FLR536/552 FLR536/552 0FLR536/552P FLR536/552BP 0FLR536/552PA
TYPE OF LOAD
Variable: Variable load flashers will handle
a range of lamps as needed up to the total
specified.
Exact: Exact load flashers will flash only
the number of lamps for which it is rated.
These are typically for OEM replacement
applications.
LAMP CAPACITY
The total number of lamps energized in the
circuit.
TERMINAL COUNT
Two or three terminals — always match
the terminal configuration being replaced.
DESIGN
Thermal: Thermal (Bi-Metal) flashers are
a mechanical device that operate through
the heating and cooling of a
bi-metal strip, opening and closing the
contacts, causing the lamps to “flash”.
Electronic: Electronic flashers are
comprised of an electro-mechanical relay
with an opposing A and B coil. A capacitor
prevents one coil from pulling in relay
contacts until it is fully charged. The
charging and discharging of the capacitor
along with a resistor determine the flash
rate and set duty cycle (on/off time).
In some cases you can replace a Thermal
Flasher with an Electronic Flasher but
never replace an Electronic Flasher with a
Thermal Flasher.
Universal Variable For Domestic Cars
• Universal design replaces most popular
part numbers 536 and 552.
• Replaces 12-volt, two terminal flashers.
• Capacity
– Turn Signals: Flashes two to three 32
C.P. standard or long-life lamps.
– Hazard Warning: Flashes two to six
lamps.
• Features durable, heavy duty thermal
flashing mechanism for increased
reliability.
• Quality construction ensures continued
operation even under harsh temperature
and humidity environmental factors.
VOLTS
TERMINALS
LAMPS
BOXED CARDED
MATERIAL
#
CATALOG
#
MATERIAL
#
CATALOG
#
NEW PACKAGING
MATERIAL #
12 3 2-6 0FLR0550X FLR550 0FLR0550XP FLR550BP 0FLR0550XPA
25
©2013 Littelfuse Automotive Aftermarket Circuit Protection©2013 Littelfuse Automotive Aftermarket Circuit Protection www.littelfuse.com
Variable For Cars and Light Trucks
• Replaces 12 volt, three terminal flashers.
• Capacity
– Turn Signals: Flashes two to three 32 C.P. standard or long-life lamps.
– Hazard Warning: Flashes two to six lamps.
• Features durable, heavy duty thermal flashing mechanism for increased reliability.
• Quality construction ensures continued operation even under harsh temperature and humidity
environmental factors.
VOLTS
TERMINALS
LAMPS
BOXED CARDED
MATERIAL
#
CATALOG
#
MATERIAL
#
CATALOG
#
NEW PACKAGING
MATERIAL #
12 3 2-6 0FLR0569X FLR569 0FLR0569XP FLR569BP 0FLR0569XPA
12 2 1-8 --- --- 0FLR0575XP FLR575BP 0FLR0575XPA
12 2 2-6 --- --- 0FLR0577XP FLR577BP 0FLR0577XPA
12 2 1-12 --- --- 0FLR0232XP FLR232BP 0FLR0232XPA
12 3 1-12 0FLR0233X FLR233 --- --- ---
24 3 1-12 0FLR0234X FLR234 0FLR0234XP --- 0FLR0234XPA
12 3 1-12 0FLR0246X FLR246 0FLR0246XP --- 0FLR0246XPA
12 4 2-6 --- --- 0FLR0726XP FLR727BP 0FLR0726XPA
12 5 2-6 --- --- 0FLR0727XP FLR727BP 0FLR0727XPA
12 3 2-6 0FLR0757X FLR757 0FLR0757XP --- 0FLR757XPA
12 3 2-6 --- --- 0FLR0758XP FLR758BP 0FLR0758XPA
12 3 3-6 --- --- 0FLR0759XP FLR759BP 0FLR0759XPA
12 3 2-6 --- --- 0FLR0760XP FLR760BP 0FLR0760XPA
12 3 2-4 0FLR0761X FLR761 0FLR0761XP --- 0FLR0761XPA
12 4 3-6 0FLR0762X FLR762 0FLR0762XP FLR762BP 0FLR0762XPA
12 2 Loud 0FLR0763X FLR763 --- --- ---
12 2 Loud 0FLR0764X FLR764 --- --- ---
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