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This PDF catalog information was published in November 2000.
Sensing and Control
Honeywell Inc.
11 West Spring Street
Freeport, IL 61032
www.honeywell.com/sensing
Sensing and Control
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Manual Switches MML92/93 Series
LEDs
Honeywell1SensingandControl11-800-537-6945USA1F1-815-235-6847International11-800-737-3360Canada73
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.
Maximumdrivecurrentis30mA.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–V
f
I
f
WHERE: R
S
= Series Resistance
E = Supply Voltage
Vf= Forward Voltage
of LED
If= Circuit Current
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
whensolderterminatingtoaprintedwiringboard,perprocedure3onpage74.
Forward LED
LED Use To Catalog LED Characteristics Manufacturers’
Type Illuminate Listing Color Typ. @ 20mA Max. Part Numbers
Stanley:T–13⁄4Rectangular
button lens MML92ERS
MML92EGS
MML92EYS
Red
Green
Yellow
1.7 V
2.1 V
2.1 V
2.0 V
2.5 V
2.5 V
ESBR5633
ESBG5633
ESAY5633
Hewlett Packard:
MML92ERH
MML92EGH
MML92EYH
Red
Green
Yellow
2.2 V
2.3 V
2.2 V
3.0 V
3.0 V
3.0 V
HLMP-3366
HLMP-3568
HLMP-3466
Stanley:T–1 Square button
lens, MML24
rocker lens
rectangular
button lens
MML92HRS
MML92HGS
MML92HYS
Red
Green
Yellow
1.7 V
2.1 V
2.2 V
2.0 V
2.5 V
2.5 V
ESBR3901
ESPY3901
ESAY3901
Hewlett Packard:
MML92HRH
MML92HGH
MML92HYH
Red
Green
Yellow
2.2 V*
2.3 V*
2.2 V
3.0 V
3.0 V
3.0 V
HLMP-1340
HLMP-1540
HLMP-1440
Long lead: Anode (+). Short lead: Cathode (−).
*@25mA.
MML93 LED PWB RECEPTACLE ORDER GUIDE
LED
Type Use to Illuminate Catalog
Listing
T-13⁄4Rectangular button lens or umbrella button
lens MML93K
T-1 Square button lens or MML24 rocker lens MML93G
MML93 LED SOLDER TERMINAL ORDER GUIDE
LED
Type Use to Illuminate Catalog
Listing
T-1 Square button (base only) MML93L
T-1 MML24 rocker lens (base only) MML93R
T-1 Rectangular button
(base and terminal) MML93J
Manuals
Manual Switches MML92 Series
LEDs
74Honeywell1SensingandControl11-800-537-6945USA1F1-815-235-6847International11-800-737-3360Canada
Factory installed. Certain MML switches
and indicators can be furnished with
LEDs permanently factory installed,
where specified in the order guides.
Userinstalled.LEDscanalsobeordered
separatelyandinstalledintheseproducts
by the user, per the procedures de-
scribed below.
LED INSTALLATION
1. With Printed Wiring Board
Receptacle. (MML93K)
PWB receptacle enables T-1 3⁄4or T-1
LEDs to be added or replaced from
behind the printed wiring board, with-
outsoldering.LEDsandreceptacles
areorderedseparately.Seepage75.
Printedwiringboardsarenotsupplied. 1. Insert the LED/PWB receptacle as-
sembly through a hole in the printed
wiring board.
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
rearofpanel-mountedunits. 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 3⁄4LED 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.
2. Seat housing on printed wiring board,
with LED projecting into hole at the
base of the housing.
4. BySolderingtoPrintedWiringBoard
or Leadwire (MML44 indicators
only).
T-1 3⁄4LEDs 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. UsepencilerasertosnapLEDsecurely
in place.
Manual Switches MML91/93 Series
Incandescent Lamp Assemblies
Honeywell1SensingandControl11-800-537-6945USA1F1-815-235-6847International11-800-737-3360Canada75
MML91 LAMP/PWB RECEPTACLE ORDER GUIDE
Catalog Listing
Lamp Use To Incl. Lamp & Industry
Type Illuminate Voltage PWB Receptacle Lamp No.
T-1 1Rectangular 5 MML91C 715
(unbased) button lens 28 MML91DC 6838
T-1 2Square button lens 5 MML91E 7715
(bi-pin) and MML24 28 MML91DE 7839
rocker lens
Notes:
1To order PWB receptacle separately, specify MML93H.
2To order PWB receptacle separately, specify MML93G.
MML91 LAMP/SOLDER RECEPTACLE ORDER GUIDE
Catalog Listing
Lamp Use To Incl. Lamp & Industry
Type Illuminate Voltage Solder Receptacle Lamp No.
T–1 3Rectangular 5 MML91D 7715
(bi-pin) button lens 28 MML91DD 7839
Catalog Listing 4
Lamp Use To T-1 (Unbased) Industry
Type Illuminate Voltage Solder Receptacle Lamp Only Lamp No.
T-1 Square 5 MML93L MML91A 715
(unbased) button lens 28 MML93L MML91DA 6838
T-1 MML24 5 MML93R MML91A 715
(unbased) rocker lens 28 MML93R MML91DA 6838
Notes:
3To order solder receptacles separately, specify MML93J.
4Order solder receptacles and T-1 lamp listings for complete assembly.
Manuals
Manual Switches MML93 Series
LED/Incandescent Lamp Receptacles
76Honeywell1SensingandControl11-800-537-6945USA1F1-815-235-6847International11-800-737-3360Canada
User installed. Certain MML switches
and indicators will accept incandescent
lamps, where specified in the order
guides.
These lamps are ordered separately and
installed by the user, per the procedures
described below.
LAMP INSTALLATION
1. With Printed Wiring Board
Receptacle for MML93G and
MML93H only.
Use PWB receptacles to permit
lamps to be added or replaced from
behind the printed wiring board,
without soldering.
These receptacles are for use with
rectangular pushbuttons, square
pushbuttons and MML24 rocker lens
only.
Printed wiring boards are not
supplied.
1. Insert the PWB receptacle/
incandescent lamp assembly
through a hole in the printed wiring
board.
2. A 1⁄8–turn applied clockwise to the
receptacle locks it in the printed
wiring board and establishes the
electrical connection.
2. With Solder Terminal Receptacle
for MML93J bi-pin only
This receptacle attaches directly to
the rear of panel-mounted units. It
enables lamps to be added or
replaced without rewiring.
This receptacle is for use with all
rectangular 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
receptacle locks it in the base.
3. With Solder Terminal Receptacles
for MML93L/93R Unbased Only or
T-1 LED.
Use the receptacles shown at right to
installT–1LEDsorT–1unbasedlamps
in panel-mounted MML21 square
pushbutton switches and MML24
rocker switches.
Procedure:
1. Assemble LEDs or lamps to
receptacles (leads first).
2. Snap receptacle into slots in housing
base.
3. Solder directly to leads.
