ALF1P18
LF Relays
Product specifications for this product
| Item | Product specifications |
|---|---|
| Contact arrangement | 1 Form A |
| Max. switching current | 25 A (AC) |
| Max. switching voltage | 250 V AC |
| Operating function | Single side stable |
| Terminal shape | PC board terminal |
| Min. switching load (reference value) | 100 mA 5 V DC |
| Dielectric strength (initial) : Between contact and coil | 5,000 Vrms for 1 min (detection current: 10 mA) |
| Dielectric strength (initial) : Between open contacts | 1,000 Vrms for 1 min (detection current: 10 mA) |
| Shock resistance (Destructive) | 1,000 m/s<sup>2</sup> (half-sine shock pulse: 6 ms) |
| Shock resistance (Functional) | 100 m/s<sup>2</sup> (half-sine shock pulse: 11 ms, detection time: 10 μs) |
| Vibration resistance (Destructive) | 10 to 55 Hz (at double amplitude of 1.5 mm) |
| Vibration resistance (Functional) | 10 to 55 Hz (at double amplitude of 1.5 mm, detection time: 10 μs) |
| Protective construction | Flux-resistant |
| Coil insulation class | Class E insulation |
| Conditions | Ambient temperature: -40 to +60℃<br>Humidity: 5 to 85% RH (Avoid icing and condensation) |
| Contact material | AgSnO<sub>2</sub> type |
| Insulation distance | [Between contact and coil]<br>Clearance: Min. 8 mm, Creepage: Min. 9.5 mm |
| Standard packingCase (pieces) | 200 |
| Rated coil voltag | 18 V DC |
| Rated operating power | 900 mW |
| Max. allowable voltage | 110% V of rated coil voltage (at 60℃) |
| Resistive load | [at 20℃, switching frequency: 20 times/min]<br>Min. 100x10<sup>3</sup> ope. 20 A 250 V AC (cosΦ = 1.0)<br>Min. 10x10<sup>3</sup> ope. 25 A 250 V AC (cosΦ = 1.0) |
| Contact rating (resistive load) | 20 A 250 V AC |
| Contact resistance (initial) | Max. 100 mΩ (by voltage drop 6 V DC 1 A) |
| Contact shape | Single |
| Insulation resistance (initial) | Min. 1,000 MΩ (at 500 V DC, Measured portion is the same as the case of dielectric strength.) |
| Mechanical life | Min. 2x10<sup>6</sup> ope. (switching frequency: at 180 times/min) |
| Unit weight | Approx. 23 g |
| [[Specifications]]Max. switching power (resistive load) | 6,250 VA |
| [[Specifications]]Surge withstand voltage (initial) : Between contact and coil | 10,000 V |
| Model Number | ALF1P18 |
| Part Number | ALF1P18 |
| Standard packing<br>Carton (pieces) | 50 |
| Compressor load | [at 20℃, switching frequency: 20 times/min]<br>Min. 100x10<sup>3</sup> ope. Inrush 70 A (cosΦ = 0.7), Steady 20 A (cosΦ = 0.9) 250 V AC |
| Inverter load | [at 20℃, switching frequency: 10 times/min]<br>Min. 30x10<sup>3</sup> ope. Inrush 200 A, Steady 20 A 100 V AC<br>Min. 30x10<sup>3</sup> ope. Inrush 100 A, Steady 10 A 200 V AC |
| [[Coil data]]Coil resistance [±10%] (at 20℃) | 360 Ω |
| [[Coil data]]Operate voltage (at20℃) | Max. 70% V of rated coil voltage (Initial) |
| [[Coil data]]Rated operating current [±10%] (at 20℃) | 50 mA |
| [[Coil data]]Release voltage (at20℃) | Min. 10% V of rated coil voltage (Initial) |
| [[Specifications]]Operate time (initial) (at 20℃) | Max. 20 ms at rated coil voltage (without bounce) |
| [[Specifications]]Release time (initial) (at 20℃) | Max. 15 ms at rated coil voltage (without bounce, with diode) |
Downloads
CAD
| Name | Size | Date | Language |
|---|---|---|---|
| LF Relays, 3D CAD(STEP) | 325.4 KB | 02.03.2021 | English |
Catalog
| Name | Size | Date | Language |
|---|---|---|---|
| Relay match list old-new part numbers | 125.9 KB | 02.07.2023 | English |
Data sheet
| Name | Size | Date | Language |
|---|---|---|---|
| LF Relays Datasheet | 269.8 KB | 30.07.2023 | English |
| Mechanical Relays Selection Guide | 4.2 MB | 01.04.2025 | English |
Other
| Name | Size | Date | Language |
|---|---|---|---|
| LF Relays, 2D CAD(DXF) | 792.7 KB | 01.01.2011 | English |
| LF Relays, 3D CAD(IGES) | 337.1 KB | 02.03.2021 | English |
| LF Relays, 3D CAD(Parasolid) | 191.7 KB | 02.03.2021 | English |
| LF Relays, 3D CAD(View) | 38.8 KB | 02.03.2021 | English |
| Relay Soldering and Cleaning Guidelines | 72.6 KB | 15.06.2022 | English |
| General Application Guidelines | 405.6 KB | 16.06.2025 | English |
| Reliability | 54.8 KB | 15.06.2022 | English |
| Definition of Relay Terminology | 151 KB | 30.05.2022 | English |
| Applications of Relays in Electronic Circuits | 134.5 KB | 30.05.2022 | English |
