Notes: 1. Please use “CB∗∗∗R∗∗” to order built-in resistor type and “CB∗∗∗D∗∗” to order built-in diode type. (Asterisks “∗” should be filled in from parts table.)
2. *Regarding solder, this product is not MIL (Military Standard) compliant. Please evaluate solder mounting by the actual equipment before using.
2. Heat resistant type
Contact arrangement
Mounting classification
PC board type
1 Form A
Plug-in type
Bracket type
PC board type
1 Form C
Plug-in type
Bracket type
PC board type*
High contact capacity
(1 Form A)
Plug-in type
Bracket type
Nominal coil voltage
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
12V DC
24V DC
Sealed type
Part No.
CB1a-T-P-12V
CB1a-T-P-24V
CB1a-T-12V
CB1a-T-24V
CB1a-T-M-12V
CB1a-T-M-24V
CB1-T-P-12V
CB1-T-P-24V
CB1-T-12V
CB1-T-24V
CB1-T-M-12V
CB1-T-M-24V
CB1aH-T-P-12V
CB1aH-T-P-24V
CB1aH-T-12V
CB1aH-T-24V
CB1aH-T-M-12V
CB1aH-T-M-24V
Flux-resistant type
Part No.
CB1aF-T-P-12V
CB1aF-T-P-24V
CB1aF-T-12V
CB1aF-T-24V
CB1aF-T-M-12V
CB1aF-T-M-24V
CB1F-T-P-12V
CB1F-T-P-24V
CB1F-T-12V
CB1F-T-24V
CB1F-T-M-12V
CB1F-T-M-24V
CB1aHF-T-P-12V
CB1aHF-T-P-24V
CB1aHF-T-12V
CB1aHF-T-24V
CB1aHF-T-M-12V
CB1aHF-T-M-24V
Packing quantity; Carton: 50 pcs. Case: 200 pcs.
Notes: 1. Please use “CB∗∗∗R∗∗” to order built-in resistor type and “CB∗∗∗D∗∗” to order built-in diode type. (Asterisks “∗” should be filled in from parts table.)
2. *Regarding solder, this product is not MIL (Military Standard) compliant. Please evaluate solder mounting by the actual equipment before using.
3. 35 A type (*Terminals are all of the plug-in type.)
Note: Other pick-up voltage types are also available. Please contact us for details.
2) With resistor inside
Contact
arrangement
1 Form A,
1 Form C
Nominal coil
voltage
12V DC
24V DC
Pick-up voltage
(Initial, at 20°C
68°F)
3 to 7V DC
6 to 14V DC
Drop-out voltage
(Initial, at 20°C
68°F)
1.2 to 4.2V DC
2.4 to 8.4V DC
Nominal operating
current
(at 20°C
68°F)
134mA
84mA
Combined resistance
(±10%)
(at 20°C
68°F)
89.5Ω
287.2Ω
Nominal operating
power
(at 20°C
68°F)
1.6W
2.0W
Usable voltage
range
10 to 16V DC
20 to 32V DC
2. Specifications
1) Standard type (12 V coil voltage)
Characteristics
Arrangement
Contact
Contact resistance (Initial)
Contact material
Nominal switching capacity (Initial)
Rating
Max. carrying current (Initial)
(14V DC, at 85°C
185°F,
continuous)
Nominal operating power
Min. switching capacity*
1
Initial insulation resistance
Between open contacts
Between contacts and coil
Operate time (at nominal voltage)
(at 20°C
68°F)
Release time (at nominal voltage)
(at 20°C
68°F)
Initial breakdown
voltage
Shock resistance
Mechanical
characteristics
Vibration
resistance
Functional
Destructive
40A 14V DC
N.O.: 40A
1.4W
Item
1 Form A
Specifications
1 Form C
Typ2mΩ (By voltage drop 6 V DC 1 A)
Ag alloy (Cadmium free)
N.O.: 40A 14V DC
N.C.: 30A 14V DC
N.O.: 40A, N.C.: 30A
70A 14V DC (at 20°C
68°F)
50A 14V DC (at 85°C
185°F)
N.O.: 40A
High contact capacity
(1 Form A)
1.4W
1.8W (1.4W: PC board type)
1A 12V DC (12V DC), 1A 24V DC (24V DC)
Min. 20 MΩ (at 500 V DC)
500 Vrms for 1 min. (Detection current: 10mA)
500 Vrms for 1 min. (Detection current: 10mA)
Electrical
characteristics
Max. 15ms (at 20°C
68°F,
excluding contact bounce time) (Initial)
Max. 15ms (at 20°C
68°F,
excluding contact bounce time, without diode) (Initial)
Min. 200 m/s
2
{20G}
Min. 1,000 m/s
2
{100G}
10 Hz to 500 Hz, Min. 44.1m/s
2
{4.5G}
10 Hz to 2,000 Hz, Min. 44.1m/s
2
{4.5G} Time of vibration for each direction; X. Y. Z direction: 4 hours
Flux-resistant type: Min. 10
5
, Sealed type: Min. 5×10
4
(Operating frequency: 2s ON, 2s OFF)
Min. 10
6
(at 120 cpm)
Standard type; Ambient temp: –40 to +85°C
–40 to +185°F,
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
Heat resistant type; Ambient temp: –40 to +125°C
–40 to +257°F,
Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature)
15 cpm (At nominal switching capacity)
Approx. 33 g
1.16 oz
Expected life
Functional
Destructive
Electrical (at nominal switching capacity)
Mechanical
Conditions for operation, transport and
storage*
2
Max. operating speed
Conditions
Unit weight
Notes: *1. This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the
actual load.
*2. The upper operation ambient temperature limit is the maximum temperature that can satisfy the coil temperature rise value. Refer to Conditions for operation,
transport and storage mentioned in AMBIENT ENVIRONMENT.
2) Standard type (24 V coil voltage)
Characteristics
Arrangement
Contact
Contact resistance (Initial)
Contact material
Nominal switching capacity (Initial)
Rating
Max. carrying current (Initial)
(28V DC, at 85°C
185°F,
continuous)
Nominal operating power
20A 28V DC
20A
1.8W
Item
1 Form A
Specifications
1 Form C
Max. 15mΩ (By voltage drop 6 V DC 1 A)
Ag alloy (Cadmium free)
N.O.: 20A 28V DC
N.C.: 10A 28V DC
N.O.: 20A, N.C.: 10A
1.8W
High contact capacity
(1 Form A)
20A 28V DC
20A
1.8W, 1.4W (PC board type)
Note: All other specifications are the same as those of standard type (12 V coil voltage)
Max. 15ms (excluding contact bounce time, without diode) (Initial)
Functional
Min. 100 m/s
2
{10G} (Half-wave pulse of sine wave: 11ms; detection: 10µs)
Shock resistance
Destructive
Min. 1,000 m/s
2
{100G} (Half-wave pulse of sine wave: 6ms)
Functional
10 Hz to 100 Hz, Min. 44.1m/s
2
{4.5G} (Detection time: 10µs)
Vibration
resistance
Destructive
10 Hz to 2,000 Hz, Min. 44.1m/s
2
{4.5G} Time of vibration for each direction; X. Y. Z direction: 4 hours
Flux-resistant type: Min. 10
5
, Sealed type: Min. 5×10
4
(Operating frequency: 2s ON, 2s OFF)
Electrical (at nominal switching capacity)
With diode inside: Min. 5×10
4
(Operating frequency: 2s ON, 2s OFF)
Mechanical
Min. 10
6
(at 120 cpm)
Ambient temp: –40°C to +85°C
–40°F to +185°F
Conditions for operation, transport and storage
Humidity: 5% R.H. to 85% R.H. (Not freezing and condensing at low temperature)
Max. operating speed
15 cpm (At nominal switching capacity)
Approx. 26 g
.92 oz,
Approx. 28 g
.99 oz
(with diode inside)
Note: * This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the actual
load.
5) 35 A type (24 V coil voltage)
Characteristics
Item
Contact
Arrangement
Nominal switching capacity (Resistive load)
Max. carrying current
Rating
(14V DC, at 85°C
185°F,
continuous)
Nominal operating power
Note: All other specifications are the same as those of 35 A type (12 V coil voltage).
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