Manual Switches
LEDs
LED APPLICATION INFORMATION
To insure stable conditions, suitable ex-
ternal control of the LED current must be
provided. It is recommended that a mini-
mum of 5 VDC open circuit voltage with
an appropriate series resistance be used
to drive LED devices. This minimizes cur-
rent variation and its effect on temper-
ature and forward voltage of the LED.
Maximum drive current is 30 mA. Reverse
voltage breakdown of the LED’s is 4 volts
(min.).
Resistor values can be determined by
supply voltage or current for LED:
R
S
=
E – Vf
If
MML92/93 Series
MML92 ORDER GUIDE
LEDs should be the same color as the lenses they illuminate. They are packed 10 per listing, including stand-off spacers for use
when solder terminating to a printed wiring board, per procedure 3 on page 86.
LED
Type
T–1
3
⁄
4
Use To
Illuminate
Rectangular
button lens
Catalog
Listing
MML92ERS
MML92EGS
MML92EYS
MML92ERH
MML92EGH
MML92EYH
T–1
Square button
lens, MML24
rocker lens
rectangular
button lens
MML92HRS
MML92HGS
MML92HYS
MML92HRH
MML92HGH
MML92HYH
Long lead: Anode (+). Short lead: Cathode (−).
* @ 25 mA.
WHERE: R
S
= Series Resistance
E = Supply Voltage
Vf = Forward Voltage
of LED
If = Circuit Current
LED
Color
Red
Green
Yellow
Red
Green
Yellow
Red
Green
Yellow
Red
Green
Yellow
Forward
Characteristics
Typ. @ 20mA
1.7 V
2.1 V
2.1 V
2.2 V
2.3 V
2.2 V
1.7 V
2.1 V
2.2 V
2.2 V*
2.3 V*
2.2 V
Max.
Stanley:
2.0 V
2.5 V
2.5 V
Hewlett Packard:
3.0 V
3.0 V
3.0 V
Stanley:
2.0 V
2.5 V
2.5 V
Hewlett Packard:
3.0 V
3.0 V
3.0 V
LED
Manufacturers’
Part Numbers
ESBR5633
ESBG5633
ESAY5633
HLMP-3366
HLMP-3568
HLMP-3466
ESBR3901
ESPY3901
ESAY3901
HLMP-1340
HLMP-1540
HLMP-1440
Manuals
MML93 LED PWB RECEPTACLE ORDER GUIDE
LED
Type
T-1
3
⁄
4
T-1
Use to Illuminate
Rectangular button lens or umbrella button
lens
Square button lens or MML24 rocker lens
Catalog
Listing
MML93K
MML93G
MML93 LED SOLDER TERMINAL ORDER GUIDE
LED
Type
T-1
T-1
T-1
Use to Illuminate
Square button (base only)
MML24 rocker lens (base only)
Rectangular button
(base and terminal)
Catalog
Listing
MML93L
MML93R
MML93J
Honeywell Sensing and Control 1-800-537-6945 USA
1-815-235-6847 International 1-800-737-3360 Canada
85
Manual Switches
LEDs
Factory installed.
Certain MML switches
and indicators can be furnished with
LEDs
permanently
factory installed,
where specified in the order guides.
LED INSTALLATION
1. With Printed Wiring Board
Receptacle. (MML93K)
PWB receptacle enables T-1
3
⁄
4
or T-1
LEDs to be added or replaced from
behind the printed wiring board, with-
out soldering. LEDs and receptacles
are ordered separately. See page 87.
Printed wiring boards are not supplied.
1. Insert the LED/PWB receptacle as-
sembly through a hole in the printed
wiring board.
User installed.
LEDs can also be ordered
separately and installed in these products
by the user, per the procedures de-
scribed below.
MML92 Series
2. A
1
⁄
8
–turn applied clockwise to the re-
ceptacle locks it in the printed wiring
board and establishes the electrical
connection.
2. With Solder Terminal Receptacle.
(MML93J)
This receptacle attaches directly to the
rear of panel-mounted units. It enables
incandescent lamps to be added or
replaced without rewiring. LEDs and
receptacles are ordered separately.
This receptacle is for use with all rect-
angular pushbuttons and MML41 or
MML46 rectangular indicators only.
1. Insert solder terminal receptacle into
hole in base of panel mount unit.
2. A
1
⁄
8
–turn clockwise applied to the re-
ceptacle locks it in the base.
3. By Soldering To Printed Wiring
Board.
In this procedure, the housing is
mounted on the printed wiring board
after the T-1
3
⁄
4
LED has been seated.
This procedure can be used with any
MML having PWB terminals.
1. Assemble stand-off spacer to LED ter-
minals and seat on printed wiring
board.
4. By Soldering to Printed Wiring Board
or Leadwire (MML44 indicators
only).
T-1
3
⁄
4
LEDs are added to MML44 in-
dicators via a procedure which is
unique to this product. The LED is in-
serted from the top of the housing with
the leadwires protruding through the
housing base.
1. Assemble LED to MML44 indicator,
with the LED terminals protruding
through assembly slot in the middle of
housing base.
2. Use pencil eraser to snap LED securely
in place.
2. Seat housing on printed wiring board,
with LED projecting into hole at the
base of the housing.
86
Honeywell Sensing and Control 1-800-537-6945 USA
1-815-235-6847 International 1-800-737-3360 Canada
京公网安备 11010802033920号
EEWORLD
