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Tohtsu Coaxial Relays

Henry Radio is a major distributor for Tohtsu coaxial relays. These are very high quality, Japanese manufactured coaxial relays that are typically used as antenna relays for all kinds of RF switching. We have sold the products for more than 30 years and have found them to be a reasonably priced reliable solution for RF signal switching. There are a number of different configurations and coil voltages available. Please contact us if you don't see a relay here that meets your requirement. We stock many of Tohtsu's models for immediate shipping and have orders working with the factory regularly.

Visit our Online Store, email us at henryradio@earthlink.net, or call 800 877-7979 to order or for more information.


CX-120P | CS-140M | CX-140N | CX-230 | CX-230L | CX-520D | CX-550F |
CX-600M | CX-600N | CX-800M | CX-800N | CZX-3500

CX-120P

Tohtsu CX-120P

Specifications

RF Impedence: 50 Ohms

Voltage
Pull in: 9 Vdc - 15 Vdc (12 Vdc Nominal)
Drop out: 1.5 Vdc minimum
Current: 80 mA at 12 Vdc at 20 degrees C
Coil resistance: 150 Ohms +/-10% at 20 degrees C.

Switching Time
Pull in: 20 ms typical
Drop out: 15 ms typical
Life Expectancy: 1,000,000. Operation min.

Mechanical
Contact arrangement: SPDT
Operational temperature: -50 to +70 degrees C.
Weight: 70 grams
Mounting: printed board only

Electrical Characteristics

Frequency
MHz
VSWR
Max
Isolation
-dB(min)
Ins. Loss
-dB(max)
Input RF
Power W
50 1.05 60 0.05 250
150 1.1 50 0.1 200
500 1.3 40 0.2 150
1000 1.4 29 0.25 150

Coil Characteristics

Nominal Voltage Voltage Range Resistance Ohms
12Vdc 10Vdc - 14Vdc 196 Ohms +/-10% at 20 degrees C.

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CX-140M

Tohtsu CX-140M cx140m

Specifications

RF Impedence: 50 Ohms

Voltage
Pull in: 10 Vdc - 14 Vdc (12 Vdc Nominal)
Drop out: 3.0 Vdc minimum
Current: 80 mA at 12 Vdc at 20 degrees C
Coil resistance: 150 Ohms +/-10% at 20 degrees C.

Switching Time
Pull in: 15 ms typical
Drop out: 10 ms typical
Life Expectancy: 1,000,000. Operation min.

Mechanical
Contact arrangement: SPDT
Operational temperature: -25 to +50 degrees C.
Weight: 95 grams
Mounting: Four screws
Cable connections: UHF Female, Directly connect cables

Electrical Characteristics

Frequency
MHz
VSWR
Max
Isolation
-dB(min)
Ins. Loss
-dB(max)
Input RF
Power W
50 1.03 55 0.08 250
150 1.03 51 0.1 250
500 1.05 47 0.15 200

Coil Characteristics

Nominal Voltage Voltage Range Resistance Ohms
12Vdc 10Vdc - 14Vdc 150 Ohms +/-10% at 20 degrees C.

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CX-140N

Tohtsu CX-140N cx140n

Specifications

RF Impedence: 50 Ohms

Voltage
Pull in: 10 Vdc - 14 Vdc (12 Vdc Nominal)
Drop out: 3.0 Vdc minimum
Current: 80 mA at 12 Vdc at 20 degrees C
Coil resistance: 150 Ohms +/-10% at 20 degrees C.

Switching Time
Pull in: 15 ms typical
Drop out: 10 ms typical
Life Expectancy: 1,000,000. Operation min.

Mechanical
Contact arrangement: SPDT
Operational temperature: -25 to +50 degrees C.
Weight: 95 grams
Mounting: Four screws
Cable connections: N Female, Directly connect cables

Electrical Characteristics

Frequency
MHz
VSWR
Max
Isolation
-dB(min)
Ins. Loss
-dB(max)
Input RF
Power W
50 1.03 55 0.08 250
150 1.03 51 0.1 250
500 1.05 47 0.15 200

Coil Characteristics

Nominal Voltage Voltage Range Resistance Ohms
12Vdc 10Vdc - 14Vdc 150 Ohms +/-10% at 20 degrees C.

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CX-230

Tohtsu CX-230 cx230

Specifications

RF Impedence: 50 Ohms

Voltage
Pull in: 10 Vdc - 14 Vdc (12 Vdc Nominal)
Drop out: 3.0 Vdc minimum
Current: 160 mA at 12 Vdc at 20 degrees C
Coil resistance: 75 Ohms +/-10% at 20 degrees C.

Switching Time
Pull in: 20 ms typical
Drop out: 15 ms typical
Life Expectancy: 1,000,000. Operation min.

Mechanical
Contact arrangement: SPDT
Operational temperature: -25 to +50 degrees C.
Weight: 230 grams
Mounting: Two screws
Cable connections: 3 BNC Type female connectors

Electrical Characteristics

Frequency
MHz
VSWR
Max
Isolation
-dB(min)
Ins. Loss
-dB(max)
Input RF
Power W
50 1.05 56 0.05 300
150 1.1 42 0.05 300
500 1.15 30 0.1 300
1000 1.3 24 0.2 200

Coil Characteristics

Nominal Voltage Voltage Range Resistance Ohms
12Vdc 10Vdc - 14Vdc 75 Ohms +/-10% at 20 degrees C.

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CX-230L

Tohtsu CX-230L cx230l

Specifications

RF Impedence: 50 Ohms

Voltage
Pull in: 10 Vdc - 14 Vdc (12 Vdc Nominal)
Drop out: 3.0 Vdc minimum
Current: 160 mA at 12 Vdc at 20 degrees C
Coil resistance: 75 Ohms +/-10% at 20 degrees C.

Switching Time
Pull in: 20 ms typical
Drop out: 15 ms typical
Life Expectancy: 1,000,000. Operation min.

Mechanical
Contact arrangement: SPDT
Operational temperature: -25 to +50 degrees C.
Weight: Approx 230 grams
Mounting: Two screws
Cable connections: 3 BNC-LR Type female connectors

Electrical Characteristics

Frequency
MHz
VSWR
Max
Isolation
-dB(min)
Ins. Loss
-dB(max)
Input RF
Power W
50 1.05 56 0.05 300
150 1.1 42 0.05 300
500 1.15 30 0.1 300
1000 1.3 24 0.2 200

Coil Characteristics

Nominal Voltage Voltage Range Resistance Ohms
12Vdc 10Vdc - 14Vdc 75 Ohms +/-10% at 20 degrees C.

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CX-520D

Tohtsu CX-520D cx520d

Specifications

RF Impedence: 50 Ohms

Voltage
Pull in: 10 Vdc - 14 Vdc (12 Vdc Nominal)
Drop out: 3.0 Vdc minimum
Current: 160 mA at 12 Vdc at 20 degrees C
Coil resistance: 75 Ohms +/-10% at 20 degrees C.

Switching Time
Pull in: 20 ms typical
Drop out: 15 ms typical
Life Expectancy: 1,000,000. Operation min.

Mechanical
Contact arrangement: SPDT
Operational temperature: -25 to +50 degrees C.
Weight: Approx 230 grams
Mounting: Four screws
Cable connections: 3 N Type female connectors

Electrical Characteristics

Frequency
MHz
VSWR
Max
Isolation
-dB(min)
Ins. Loss
-dB(max)
Input RF
Power W
50 1.005 65 0.1 350
150 1.01 60 0.15 300
500 1.03 53 0.18 300
1000 1.05 46 0.2 250
1500 1.17 42 0.2 200
2000 1.2 39 0.25 150

Coil Characteristics

Nominal Voltage Voltage Range Resistance Ohms
12Vdc 10Vdc - 14Vdc 75 Ohms +/-10% at 20 degrees C.

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CX-550F

Tohtsu CX-550F cx550f

Specifications

RF Impedence: 75 Ohms

Voltage
Pull in: 10 Vdc - 14 Vdc (12 Vdc Nominal)
Drop out: 3.0 Vdc minimum
Current: 160 mA at 12 Vdc at 20 degrees C
Coil resistance: 75 Ohms +/-10% at 20 degrees C.

Switching Time
Pull in: 20 ms typical
Drop out: 15 ms typical
Life Expectancy: 1,000,000. Operation min.

Mechanical
Contact arrangement: SPDT
Operational temperature: -25 to +50 degrees C.
Weight: Approx 230 grams
Mounting: Four screws
Cable connections: 3 F Type female connectors

Electrical Characteristics

Frequency
MHz
VSWR
Max
Isolation
-dB(min)
Ins. Loss
-dB(max)
Input RF
Power W
50 1.005 70 0.1 200
150 1.01 65 0.12 200
500 1.03 53 0.14 150
1000 1.03 50 0.19 100
2000 1.1 43 0.3 50

Coil Characteristics

Nominal Voltage Voltage Range Resistance Ohms
12Vdc 10Vdc - 14Vdc 75 Ohms +/-10% at 20 degrees C.

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CX-600M

Tohtsu CX-600M cx600m

Specifications

RF Impedence: 50 Ohms

Voltage
Pull in: 10 Vdc - 14 Vdc (12 Vdc Nominal)
Drop out: 3.0 Vdc minimum
Current: 160 mA at 12 Vdc at 20 degrees C
Coil resistance: 75 Ohms +/-10% at 20 degrees C.

Switching Time
Pull in: 20 ms typical
Drop out: 15 ms typical
Life Expectancy: 1,000,000. Operation min.

Mechanical
Contact arrangement: SPDT
Operational temperature: -25 to +50 degrees C.
Weight: Approx 230 grams
Mounting: Two screws
Cable connections: 3 M(UHF) Type female connectors

Electrical Characteristics

Frequency
MHz
VSWR
Max
Isolation
-dB(min)
Ins. Loss
-dB(max)
Input RF
Power W
50 1.03 60 0.07 1000
150 1.1 48 0.1 1000
500 1.15 37 0.15 800

Coil Characteristics

Nominal Voltage Voltage Range Resistance Ohms
12Vdc 10Vdc - 14Vdc 75 Ohms +/-10% at 20 degrees C.

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CX-600N

Tohtsu CX-600N cx600n

Specifications

RF Impedence: 50 Ohms

Voltage
Pull in: 10 Vdc - 14 Vdc (12 Vdc Nominal)
Drop out: 3.0 Vdc minimum
Current: 160 mA at 12 Vdc at 20 degrees C
Coil resistance: 75 Ohms +/-10% at 20 degrees C.

Switching Time
Pull in: 20 ms typical
Drop out: 15 ms typical
Life Expectancy: 1,000,000. Operation min.

Mechanical
Contact arrangement: SPDT
Operational temperature: -25 to +50 degrees C.
Weight: Approx 230 grams
Mounting: Two screws
Cable connections: 3 N Type female connectors

Electrical Characteristics

Frequency
MHz
VSWR
Max
Isolation
-dB(min)
Ins. Loss
-dB(max)
Input RF
Power W
50 1.03 60 0.07 1000
150 1.1 48 0.1 1000
500 1.15 37 0.15 800
1000 1.2 28 0.2 500
1500 1.2 26 0.2 350
2000 1.25 23 0.23 100

Coil Characteristics

Nominal Voltage Voltage Range Resistance Ohms
12Vdc 10Vdc - 14Vdc 75 Ohms +/-10% at 20 degrees C.
24Vdc 20Vdc - 28Vdc 300 Ohms +/-10% at 20 degrees C.

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CX-800M

Tohtsu CX-800M cx800m

Specifications

RF Impedence: 50 Ohms

Voltage
Pull in: 10 Vdc - 14 Vdc (12 Vdc Nominal)
Drop out: 3.0 Vdc minimum
Current: 226 mA at 12 Vdc at 20 degrees C
Coil resistance: 53 Ohms +/-10% at 20 degrees C.

Switching Time
Pull in: 20 ms typical
Drop out: 15 ms typical
Life Expectancy: 1,000,000. Operation min.

Mechanical
Contact arrangement: DPDT
Operational temperature: -25 to +50 degrees C.
Weight: Approx 365 grams
Mounting: 2 MTG holes
Cable connections: 6 M(UHF) Type female connectors

Electrical Characteristics

Frequency
MHz
VSWR
Max
Isolation
-dB(min)
Ins. Loss
-dB(max)
Input RF
Power W
50 1.1 50 0.15 1000
150 1.15 48 0.15 1000
500 1.15 37 0.2 800

Coil Characteristics

Nominal Voltage Voltage Range Resistance Ohms
12Vdc 10Vdc - 14Vdc 75 Ohms +/-10% at 20 degrees C.

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CX-800N

Tohtsu CX-800N cx800n

Specifications

RF Impedence: 50 Ohms

Voltage
Pull in: 10 Vdc - 14 Vdc (12 Vdc Nominal)
Drop out: 3.0 Vdc minimum
Current: 226 mA at 12 Vdc at 20 degrees C
Coil resistance: 53 Ohms +/-10% at 20 degrees C.

Switching Time
Pull in: 20 ms typical
Drop out: 15 ms typical
Life Expectancy: 1,000,000. Operation min.

Mechanical
Contact arrangement: DPDT
Operational temperature: -25 to +50 degrees C.
Weight: Approx 365 grams
Mounting: 2 MTG holes
Cable connections: 6 N Type female connectors

Electrical Characteristics

Frequency
MHz
VSWR
Max
Isolation
-dB(min)
Ins. Loss
-dB(max)
Input RF
Power W
50 1.1 50 0.15 1000
150 1.15 48 0.15 1000
500 1.15 37 0.2 800
1000 1.18 28 0.2 500
1500 1.2 26 0.2 350
2000 1.3 23 0.3 150

Coil Characteristics

Nominal Voltage Voltage Range Resistance Ohms
12Vdc 10Vdc - 14Vdc 53 Ohms +/-10% at 20 degrees C.
24Vdc 19Vdc - 26Vdc 192 Ohms +/-10% at 20 degrees C.
26.5Vdc 20Vdc - 30Vdc 245 Ohms +/-10% at 20 degrees C.

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CZX-3500

Tohtsu CZX-3500 czx3500

Specifications

RF Impedence: 50 Ohms

Voltage
Pull in: 10 Vdc - 14 Vdc (12 Vdc Nominal)
Drop out: 3.0 Vdc minimum
Current: 230 mA at 12 Vdc at 20 degrees C
Coil resistance: 52 Ohms +/-10% at 20 degrees C.

Switching Time
Pull in: 20 ms typical
Drop out: 18 ms typical
Life Expectancy: 1,000,000. Operation min.

Mechanical
Contact arrangement: SPDT
Operational temperature: -25 to +50 degrees C.
Weight: Approx 320 grams
Mounting: Four screws
Cable connections: 3 N Type female connectors

Electrical Characteristics

Frequency
MHz
VSWR
Max
Isolation
-dB(min)
Ins. Loss
-dB(max)
Input RF
Power W
50 1.008 65 0.1 450
150 1.01 65 0.1 400
500 1.03 65 0.2 300
1000 1.06 65 0.25 250
2000 1.07 65 0.3 150
3000 1.1 60 0.3 50
4000 1.15 55 0.35 15

Coil Characteristics

Nominal Voltage Voltage Range Resistance Ohms
12Vdc 10Vdc - 14Vdc 52 Ohms +/-10% at 20 degrees C.

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