125

For Most Recent Data, Consult the Coto Technology Website: www.cotorelay.com

6 E-mail: info@cotorelay.com

RI-08 Series Dry Reed Switch

nor a switch kept closed by an 80 AT coil to open.

Vibration

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.

Mechanical Strength

The robustness of the terminations is tested in accor-

dance with “IEC 68-2-21”, test Ua

Operating and Storage Temperature

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 permissible. For more information contact your

nearest Coto Technology sales office.

Soldering

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.

Welding

The leads can be welded.

Mounting

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 influencing the operating and measuring

conditions.

Model Number

RI-08AA

RI-08A

RI-08B

Parameters

Test Conditions

Units

Operating Characteristics

Operate Range

AT

10.5-19

15-28

24-51

Release Range

AT

4-12

5-16

8-20.5

Operate Time - including bounce (typ.)

(energization)

ms

0.35 (24AT)

0.35 (35AT)

0.35 (64AT)

Bounce Time (typ.)

(energization)

ms

0.15 (24AT)

0.15 (35AT)

0.15 (64AT)

Release Time (max)

(energization)

µs

30 (24AT)

30 (35AT)

30 (64AT)

Resonant Frequency (typ.)

Hz

3200

3200

3200

Electrical Characteristics

Switched Power (max)

W

30

30

40

Switched Voltage DC (max)

V

200

200

200

Switched Voltage AC, RMS value (max)

V

200

200

250

Switched Current DC (max)

mA

750

1000

1000

Switched Current AC, RMS value (max)

mA

750

1000

1000

Carry Current DC (max)

A

1.75

2.25

3.0

Breakdown Voltage (min)

V

300

400

580

Contact Resistance (initial max)

(energization)

m

Ω

120 (27 AT)

120 (27AT)

120 (36 AT)

Contact Resistance (initial typ.)

(energization)

m

Ω

90 (27 AT)

90 (27 AT)

90 (36 AT)

Contact Capacitance (max)

without test coil

pF

0.20

0.20

0.20

Insulation Resistance (min)

RH

≤ 45%

M

Ω

10

6

10

6

6