L

Series FM

Membranes

www.nkk.com

L15

Power Level

20mA @ 24V DC

Contact Resistance

500Ω maximum (10mA @ 10V DC)

Insulation Resistance

100 megohms minimum @ 250V DC minimum

Dielectric Strength

250V AC minimum for one minute minimum

Operational Life

1,000,000 operations minimum

Contact Timing

10 milliseconds maximum

Nominal Operating Force

1.0N ~ 6.0N

Stroke:

Nonilluminated

Illuminated with Overlay

.016” ~ .039” (0.4mm ~ 1.0mm)

.020” ~ .047” (0.5mm ~ 1.2mm)

Operating Temperature Range

–15°C ~ +50°C (+5°F ~ +122°F) illuminated

–15°C ~ +55°C (+5°F ~ +131°F) nonilluminated

• Nonilluminated options in 4 or 16 keys, illuminated choices in 12 or 16 keys

• 1.0mm (.039”) tail pitch

• Easily integrated into designs: replaces multiple mechanical switches, soldered

wires and cable assemblies

• Card insertion into design supports customized legends for nonilluminated models

• Actuating dome offers crisp, tactile feedback to positively indicate circuit transfer

• Illuminated models feature legends on embossed keypads

• Adhesive backing for easy mounting

Ordering Information

Description

Part Number

Illumination

Number of Keys

Surface Sheet

Black (D)

Gray (E)

Overlay

FMBN04BD

Nonilluminated

4

•

FMBN04BE

4

•

FMBN16BD

16

•

FMBN16BE

16

•

FMBP12BF

Dot Illuminated

with

Overlay

12

Gray Surface Sheet with

Embossed White Keypad

and Gray Legends

FMBP16BF

16

DISTINCTIVE CHARACTERISTICS

GENERAL SPECIFICATIONS

R =

Where: R

E

V

F

I

F

= Resistor Value (Ohms)

= Source Voltage (V)

= Forward Voltage (V)

= Forward Current (A)

R

+

–

E

Anode

Cathode

The electrical specifications

shown are determined at a

basic temperature of 25°C.

LED is an integral part of

the switch. LEDs are not

sold separately.

LED circuits are isolated and require an external power source.

If the source voltage exceeds the rated voltage, a ballast resistor is required.

Single Element LED Color: Amber

Unit

Forward Voltage (Typical)

V

F

2.1

V

Forward Current (Typical)

I

F

20

mA

Forward Current (Maximum)

I

F

30

mA

* Forward Peak Current (Max)

I

FM

195

mA

Reverse Voltage (Maximum)

V

R

5.0

V

* Note: Pulse width 0.1msec maximum with a maximum duty cycle ratio of 1/10

LED SPECIFICATIONS