RI-46 Series
RI-46 S
ERIES
Micro dry-reed switch hermetically sealed in a gas-filled glass envelope.
Single-pole, single-throw (SPST) type, having normally open contacts,
and containing two magnetically actuated reeds.
The switch is of the double-ended type and may be actuated by an
electromagnet, a permanent magnet or a combination of both.
The device is intended for use in relays, sensors, pulse counters or
similar devices.
RI-46 S
ERIES
F
EATURES
EATURES
u
Can switch main voltage
u
Can handle up to 40 W load
u
Contact layers: Gold, sputtered ruthenium
u
Superior glass-to-metal seal and blade alignment
u
Excellent life expectancy and reliability
G
ENERAL DATA FOR ALL MODELS
RI-46
AT-Customization / Preformed Leads
Besides the standard models, customized products can also
be supplied offering the following options:
!
Operate and release ranges to customer specification
!
Cropped and/or preformed leads
C
OILS
All characteristics are measured using the Philips Standard
Coil. For definitions of the Philips Standard Coil and the
standard MIL Coil, refer to
“Application Notes”
in the
Reed Switch Technical & Application Information
Section
of this catalog.
Relationship between
Standard
Relationship betw een Philips Standard Coil and Stan-
dard
dard MIL Coil
Operate value of standard MIL Coil = 0.79 x operate value
of Philips Standard Coil + 2.26 AT.
Release value of standard Mil Coil = 0.83 x release value of
Philips Standard Coil + 1.31 AT.
EXPECTANCY
L
IFE EXPECTANCY AND RELIABILITY
The life expectancy data given below are valid for a coil
energized at 1.5 times the published maximum operate
value for each type in the RI-46 series.
Dimensions in inches (mm)
less than 10
-9
with a confidence level of 90%.
End of life criteria:
Contact resistance > 1
Ω
after 2 ms
Release time > 2 ms (latching or contact sticking).
(resisti
esistiv
Loaded conditions (r esistiv e load: 20 V; 500 mA;
opera
frequenc
equency:
opera ting frequency: 125 Hz)
RI-46AA
Life expectancy: min. 10
7
operations with a failure rate of
less than 10
-8
with a confidence level of 90%.
End of life criteria:
Contact resistance > 2
Ω
after 2.5 ms
Release time > 2.5 ms (latching or contact sticking).
RI-46A; RI-46B; RI-46C
Life expectancy: min. 2.5 x 10
7
operations with a failure
rate of less than 10
-8
with a confidence level of 90%.
End of life criteria:
Contact resistance > 2
Ω
after 2.5 ms
Release time > 2.5 ms (latching or contact sticking).
equency:
(opera
frequenc
No-load conditions (opera ting fr equency: 100 Hz)
8
Life expectancy: min. 10 operations with a failure rate of
Rhopoint Components Ltd
Fax: +44 (0) 1883 712938 Phone: +44 (0) 1883 717988 web: www.rhopointcomponents.com e-mail: sales@rhopointcomponents.com
RI-46 Series
Model Number
Parameters
Operating Characteristics
Operate Range
Release Range
Operate Time - including bounce (typ.)
Bounce Time (typ.)
Release Time (max)
Resonant Frequency (typ.)
AT
AT
ms
ms
µs
Hz
10.5-19
4-12
0.35 (24 AT)
0.15 (24 AT)
30 (24 AT)
3200
15-28
5-16
0.35 (35 AT)
0.15 (35 AT)
30 (35 AT)
3200
24-51
8-20.5
0.35 (64 AT)
0.15 (64 AT)
30 (64 AT)
3200
46-70
12-22.5
0.35 (87.5 AT)
0.15 (87.5 AT)
30 (87.5 AT)
3200
RI-46AA
RI-46A
RI-46B
RI-46C
Test Conditions
Units
(energization)
(energization)
(energization)
Electrical Characteristics
Switched Power (max)
Switched Voltage DC (max)
Switched Voltage AC, RMS value (max)
Switched Current DC (max)
Switched Current AC, RMS value (max)
Carry Current DC; AC, RMS value (max)
Breakdown Voltage (min)
Contact Resistance (initial max)
Contact Resistance (initial typ.)
Contact Capacitance (max)
Insulation Resistance (min)
W
V
V
mA
mA
A
V
m
Ω
m
Ω
pF
M
Ω
30
200
250
750
750
2
300
90 (27 AT)
60 (27 AT)
0.2
10
6
note 1
note 1
(energization)
(energization)
without test coil
RH
≤
45%
30
200
250
1000
1000
2.5
400
90 (27 AT)
60 (27 AT)
0.2
10
6
40
200
250
1000
1000
3
580
90 (36AT)
60 (36 AT)
0.2
10
6
40
200
250
1000
1000
3
780
90 (36 AT)
60 (36 AT)
0.2
10
6
Note 1: Switching higher currents is possible depending on signature of the load.
Switching different loads involves different life expectancy
and reliability data. Further information is available on
request.
M
ECHANICAL
D
ATA
Contact arrangement is normally open; lead finish is tinned;
net mass is approximately 0.28 g; and can be mounted in
any position.
S
HOCK
The switches are tested in accordance with
“IEC 68-2-27”,
test Ea (peak acceleration 500 G, half sinewave; duration
11 ms). Such a shock will not cause an open switch (no
magnetic field present) to close, nor a switch kept closed by
an 80 AT coil to open.
IBRATION
V
IBRATION
The switches are tested in accordance with
“IEC 68-2-6”,
test Fc (acceleration 10 G; below cross-over frequency 57
to 62 Hz; amplitude 0.75 mm; frequency range 10 to 2000
Hz, duration 90 minutes). Such a vibration will not cause
an open switch (no magnetic field present) to close, nor a
switch kept closed by an 80 AT coil to open.
PERATING
ORAGE EMPERATURE
O
PERATING AND
S
TORAGE
T
EMPERATURE
Operating ambient temperature; min: -55°C; max: +125°C.
Storage temperature; min: -55°C; max: +125°C.
Note: Temperature excursions up to 150°C may be permis-
sible. For more information contact your nearest Coto
Technology sales office.
S
OLDERING
The switch can withstand soldering heat in accordance with
“IEC 68-2-20”,
test Tb, method 1B: solder bath at 350
±10°C
for 3.5
±0.5
s. Solderability is tested in accordance
with
“IEC 68-2-20”,
test Ta, method 3: solder globule
temperature 235°C; ageing 1b: 4 hours steam.
W
ELDING
The leads can be welded.
M
OUNTING
The leads should not be bent closer than 1 mm to the glass-
to-metal seals. Stress on the seals should be avoided. Care
must be taken to prevent stray magnetic fields from influ-
encing the operating and measuring conditions.
M
ECHANICAL
S
TRENGTH
The robustness of the terminations is tested in accordance
with
“IEC 68-2-21”,
test Ua
1
(load 40 N).
Rhopoint Components Ltd
Fax: +44 (0) 1883 712938 Phone: +44 (0) 1883 717988 web: www.rhopointcomponents.com e-mail: sales@rhopointcomponents.com
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