I. Product Features
1. Miniaturized Design: Small size and light weight effectively save PCB board space, suitable for high-density mounting scenarios;
2. Convenient Installation: Supports direct soldering onto printed circuit boards, compatible with automated soldering processes, improving assembly efficiency;
3. Reliable Structure: Adopts a reed switch structure, offering strong shock and vibration resistance, ensuring stable operation in various environments.
II. Advantages
1. High Sensitivity: High-sensitivity design allows for quick response to weak control signals, improving control accuracy;
2. Low Power Consumption: Low coil power consumption, suitable for battery-powered or low-power electronic devices;
3. Strong Environmental Adaptability: Excellent shock and vibration resistance, long service life, reducing equipment maintenance and replacement costs;
4. Flexible Installation and Selection: Supports direct PCB soldering, with multiple coil impedance specifications available to suit different circuits and installation requirements.
III. The SR reed relay's core component, the reed switch, is sealed in an inert gas. The circuit is switched on and off by magnetizing the reed contacts via a magnetic field. Its ultra-small size, low power consumption, high sensitivity, and long lifespan are its key advantages, making it suitable for applications requiring high space efficiency and reliability.
Typical applications include:
Communication equipment: Used in dialers, video phone systems, etc., for signal switching or circuit protection.
Security systems: Integrated into access control systems, alarm devices, and surveillance cameras.
Industrial automation and various chip testing instruments, automotive testers, etc.
Medical and measurement equipment: Due to low heat generation and high stability, it is suitable for sensitive signal switching in precision instruments or testing systems.
| Contact parameters |
| Parameter name |
Parameter value |
| model |
SR |
| Contact materials |
Ru/Rh |
| Contact resistance |
≤100mΩ Max.(at 1A 16VDC) |
| Rated load (resistive) |
0.1A 125VAC / 0.5A 24VDC |
| Maximum switching current |
0.5A |
| Maximum switching voltage |
200VAC |
| Maximum switching power |
10VA(AC)/10W(DC) |
| Performance parameters |
| Pull-in time (rated voltage) |
0.55ms Max. |
| Release time |
0.2ms Max. |
| Insulation resistance |
Min 100MΩ (at 500VDC) |
| Dielectric withstand pressure |
Contact-to-contact: 200VAC, 50/60Hz for 1 minute |
| Dielectric withstand pressure |
Contact-coil connection: 1400VAC, 50/60Hz for 1 minute |
| Vibration resistant (durable) |
10-55Hz, dual amplitude 1.5mm |
| Vibration resistance (for malfunctions) |
10-55Hz, dual amplitude 1.5mm |
| Impact resistance (malfunction) |
20G Min |
| Impact resistance (durability) |
100G Min |
| Mechanical life |
100,000,000 times |
| Electrical life |
10,000,000 times |
| Ambient temperature |
-40℃ to +85℃ (non-condensing) |
| weight |
Approximately 3g |
| Coil parameters (20℃) |
| Rated voltage (VDC) |
Rated current ±10% (mA) |
Coil resistance ±10% (Ω) |
Rated power |
Pull-in voltage (Max.) |
Release voltage (Min.) |
Maximum continuous applied voltage |
| 3 |
0.012 |
250 |
Approximately 0.036W |
75% of the rated voltage |
10% of the rated voltage |
130% of rated voltage |
| 5 |
0.01 |
500 |
Approximately 0.05W |
| 12 |
0.012 |
1000 |
Approximately 0.144W |
| 24 |
0.012 |
2000 |
Approximately 0.288W |
The above values are initial values. Do not apply the maximum voltage to the product continuously for more than 10 minutes to avoid overheating of the coil.
Outline dimensions drawing, wiring diagram, and mounting hole location diagram (unit: mm)
Ordering Mark
SR - 1 - A - 05
1 2 3 4
1: Model: SIP
2: Number of Contact Groups: 1-1 pole
3: Contact Type: C (Reference C); H (Reference A); B (Reference B)
4: Rated Voltage: 3, 5, 12, 24VDC
Disclaimer: This product specification is for customer reference only and is subject to change without notice.
It is impossible for Sheng Yuan to assess all performance parameters required for relays in every specific application; therefore, customers should select products that match their specific usage conditions. For sealed
relays, please open the vent holes on the housing after installation and cleaning before use. If you have any questions, please contact Sheng Yuan for further technical support. However, the responsibility for product selection rests solely with the customer.
English
