DIGITAST Microminiature SPDT, Key Switches
Features/Benefits • High reliability/long life • Designed for low level • • • •
Construction
FUNCTION: momentary or push-push CONTACT ARRANGEMENT: 1 change over contact SPDT, NO MODE OF SWITCHING: Non-shorting DISTANCE BETWEEN BUTTON CENTERS: HORIZONTAL MINIMUM: 12,7 (0.500) or 17,78 (0.700) VERTICAL MINIMUM: 17,78 (0.700) TERMINALS: PC pins MOUNTING: Soldering, centering pins
switching Ready to implement on PCB Latching function available Several button options RoHS compliant and compatible Electrical
Typical Applications • Medical • Instrumentation • Industrial electronics
• Audio electronics
Mechanical
TOTAL TRAVEL: ≤ 3 (.0018) SWITCHING TRAVEL: 1,5 (0.0591) LATCHING TRAVEL: 1,8 (0.0709) OPERATING FORCE: 1.5 +/- 0.5 N (150 +/- 50 grams)
SWITCHING POWER MAX.: 240 mW DC SWITCHING VOLTAGE MAX.: 24 V DC SWITCHING CURRENT MAX.: 10 mA DC CARRYING CURRENT AT 20˚C (push-push version): 100 mA DIELECTRIC STRENGTH (50 Hz, 1 min): 500 V OPERATING LIFE with or without max. switching power Momentary: ≥ 5 x 106 operations Push-push: ≥ 5 x 105 operations CONTACT RESISTANCE: Initial ≤ 50 mΩ After 5 x 106 operations: ≤ 100 mΩ INSULATION RESISTANCE: ≥ 1010 Ω CAPACITANCE at f= 10 kHz: ≤ 0.8pF BOUNCE TIME: ≤ 2.5 ms Operating speed 400 mm/s (15.75/s)
Environmental
OPERATING TEMPERATURE: -25˚C to 85˚C.
Process
SOLDERABILITY: Max. soldering time and temperature: 5 s at 260˚C
How To Order
Our easy build-a-switch concept allows you to mix and match options to create the switch you need. To order, select desired option from each category and place it in the appropriate box.
Switch
A U
E Key Switches
Series SER Narrow button SET Wide button SERU Switch body only (no button) LED NONE No LED L 1 LED 2L 2 LED’s
1st LED Color NONE No LED RD Red YE Yellow GN Green LED Spacing* NONE Narrow LED Spacing (TYP Europe) 7.62 Wide LED Spacing (TYP No. America)
Function EE Latching OA Non-latching Contact Material AU Gold 2nd LED Color NONE No LED RD Red YE Yellow GN Green Body Color NONE White (STD) BRN Brown
Button Color** None (SERU) BK Black GY Gray
* LED spacing only applies when 1 LED requested
Button
Button Style SR Narrow ST Wide
K
LED Holes NONE No LED holes L 1 LED hole 2L 2 LED holes
** Additional button colors available by request
Button Color** BK Black GY Gray Latching None For use with momentary switch EE With “EE” staple for latching
Dimensions are shown: mm (inch) Specifications and dimensions subject to change
E–26
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DIGITAST Microminiature SPDT, Key Switches
DESIGNATION
SER
NARROW BUTTON
17,5 (0.680) 2,54 (0.1) 12,3 (0.484) 221 00 (0.563) 14,3
1 (0.315)
5,08 5,08 10,16 (0.4) 14,74 (0.6)
(0.0394)
(0.2)
(0.2)
0,4 0,7 (0.0276)
[0.0157] ø1 (0.0394)
SER
12,3 (0.484)
SERL
SER2L
1st LED 2nd LED
17,1 (0.673)
SET
WIDE BUTTON
221
00
14,3 (0.563)
Total travel 3 (0.118) Switching travel 1.5 (0.0591)
SET
17,3 (0.681)
SETL
SET2L
1st LED 2nd LED
(0.177)
4,5
Total travel 3 (0.118) Switching travel 1.5 (0.0591)
7,62
(0.3)
8
17,1 (0.673)
E Key Switches
17.3 [0.681] 15.24 [0.6]
SERU
NO BUTTON
0
1
5.08 [0.2] [0.0197] 0.5
[0.311]
7.9
[0.787]
ø1 [0.0394] 0.4 [0.015] 0.7 [0.0276]
2
[0.177]
4.5
[0.484]
[0.3]
7.62
0
2
12.3
2
Dimensions are shown: mm (inch) Specifications and dimensions subject to change
E–27
www.ittcannon.com
DIGITAST Microminiature SPDT, Key Switches
LED
NONE
NO LED
L
2 7,62 [0.3]
1 LEDs 7.62 mm Spacing (TYP No. America)
2,54 [0.1]
2L
0 2
2 LEDs
+
-
[0.3]
7,62
-
2,54
0
2
[0.1] 7,62 [0.3]
0
0
1
0
1
0 5,08 [0.2] 15,24 [0.6] 2,54 [0.1] + 5,08 5,08 2,54 [0.1] + 5,08 [0.2] 5,08 [0.2]
1 2,54 [0.1]
[0.2] [0.2] 10,16 [0.4] 15,24 [0.6]
10,16 [0.4] 15,24 [0.6]
NARROW SPACING (TYP EUROPE)
2,54 + 0 2 [0.1] ø 1.0±0.1 (0.0394±0.00349) 7,62 [0.3] ø 1.1±0.05 (0.0433±0.00197)
0 + 5,08 [0.2] 5,08 [0.2]
1 2,54 [0.1]
10,16 [0.4] 15,24 [0.6]
TOP VIEW OF PCB
BUTTON COLOR
BK BLACK GY GRAY
Other button colors available by request [red (RD), green (GN), white (WH), yellow (YE) , blue (BU) , orange (OG)].
LED COLOR
OPTION CODE COLOR Models without LED Red Green Yellow
E Key Switches
NONE RD GN YE
CONTACT MATERIAL
OPTION CODE MATERIAL Gold
AU
NOTE: For the latest information regarding RoHS compliance, please go to: www.ittcannon.com/rohs.
FUNCTION
OPTION CODE
COLOR Momentary
0 0
SCHEMATIC
OA
2 1
EE
Push-Push
0 0 2 1
Dimensions are shown: mm (inch) Specifications and dimensions subject to change
E–28
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