Description
24V DC signal relay is designed with silver alloy contacts and copper coil, more stable and precise.
Features
- 3A contact switching capability.
- Contact form: SPDT (1C).
- High sensitive type, coil power is 200mW/360mW/450mW.
- Standard DIP construction terminal.
- Ultra – small type, gold – plated contacts.
- Suit for complete machine wave soldering and integral cleaning process.
- Main applications: Electric power protection, automation, communication.
Specification
| Model | ATO-SR-FH38DC24V | ||
| Type | Standard Type | Sensitive Type | High Power Consumption Type |
| Coil Parameters (23℃) | Nominal Voltage | DC 24V | |
| Nominal Power | 360mW | 200mW | 450mW |
| Pick-up Voltage | ≤18VDC | ≤18VDC | ≤18VDC |
| Drop-out Voltage | ≥1.20VDC | ≥1.20VDC | ≥1.20VDC |
| Rated Current | 15mA | 8.3mA | 18.75mA |
| Coil Resistance | 1600Ω | 2880Ω | 1280Ω |
| Max Voltage | DC 31.2V | DC 31.2V | DC 31.2V |
| Contact Parameters | Contact Form | SPDT (1C) | |
| Contact Resistance (Initial) | ≤100mΩ (6VDC 0.1A) | ||
| Contact Material | AgNi + Gold Plating | ||
| Rated Value | Rated Load (Resistance Load) | 1A 240VAC/30VDC | |
| 3A 120VAC | |||
| Max. Switching Voltage | 240VAC/30VDC | ||
| Max. Switching Current | 5A | ||
| Max. Switching Capacity | 360VA/30W | ||
| Min. Allowing Load | 5VDC 100mA | ||
| Electrical Performance | Insulation Resistance (Initial) | 1000mΩ (500VDC) | |
| Dielectric Strength (Initial) | Between Open Contacts | 500VAC, 1 min | |
| Between Coil & Contacts | 1000VAC, 1 min | ||
| Operate Time | ≤10ms | ||
| Release Time | ≤5ms | ||
| Mechanical Performance | Shock Resistance | Functional | 98m/s2(10g) |
| Destructive | 980m/s2(100g) | ||
| Vibration Resistance | 10Hz ~ 55Hz 1.5mm DA | ||
| Endurance | Mechanical | 1 x 107ops | |
| Electrical | 1A 240VAC 1 x 105ops (ON/OFF=1s/9s) | ||
| 3A 120VDC 5 x 104ops (ON/OFF=1s/9s) | |||
| Operate Condition | Ambient Temperature | -25℃ ~ 70℃ | |
| Humidity | 5% to 85% | ||
| Termination | PCB (DIP Encapsulation) | ||
| Unit Weight | 5g | ||
| Construction | Plastic Sealed, Flux Proofed |
Note: In order to maintain the initial performance parameters of the signal relay, please be careful not to drop it.
Dimension
Units: mm
Performance curves
Tips: Major parameters of signal relay
- Nominal voltage: It is the voltage required by the coil when the signal relay is in normal operation.
- Direct current resistance: It is DC resistance of the coil in the relay, which can be measured with a multimeter.
- Pull-in current: It is the minimum current at which a relay can produce a pull operation. In normal use, the given current must be slightly greater than the pull-in current for the signal relay to operate stably. The operating voltage of the coil do not exceed 1.5 times of the rated working voltage, otherwise it will produce a large current and burn the coil.
- Release current: It refers to the maximum current generated by the release action of the signal relay. When the current in the pull-in state of the relay decreases to a certain extent, the relay will return to the release state. The current at this point is much less than the pull-in current.
- Switching voltage and current of contact: They mean the voltage and current allowed to be loaded by the signal relay, which determines the size of the voltage and current that the relay can control, and cannot exceed specified value when using, otherwise it is easy to damage the contact of the relay.
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