
Allicdata Part #: | HE721B0510-ND |
Manufacturer Part#: |
HE721B0510 |
Price: | $ 2.03 |
Product Category: | Relays |
Manufacturer: | Littelfuse Inc. |
Short Description: | RELAY RED SPST-NC 500MA 5V |
More Detail: | N/A |
DataSheet: | ![]() |
Quantity: | 1000 |
5000 +: | $ 1.84304 |
Turn Off Voltage (Min): | 0.5 VDC |
Coil Resistance: | 500 Ohms |
Coil Power: | -- |
Contact Material: | -- |
Operating Temperature: | -40°C ~ 85°C |
Termination Style: | PC Pin |
Mounting Type: | Through Hole |
Features: | Diode |
Release Time: | 1ms |
Operate Time: | 1ms |
Series: | HE700 |
Turn On Voltage (Max): | 3.75 VDC |
Switching Voltage: | 200VDC - Max |
Contact Rating (Current): | 500mA |
Contact Form: | SPST-NC (1 Form B) |
Coil Voltage: | 5VDC |
Coil Current: | 10.0mA |
Coil Type: | Non Latching |
Part Status: | Active |
Packaging: | Tube |
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Reed relays are a type of electrical switch consisting of a rigid loop of metal in a sealed tubing, which is referred to as a "reed". When an electric current is applied, the reed closes and makes contact with its neighboring metal piece in the tubing, creating an electrical circuit. The HE721B0510 is a reed relay that is commonly used in a variety of industries and applications.
The HE721B0510 is a compact reed relay that utilizes a single coil design, and is characterized by a high current handling capability up to 250V/2A. It is capable of switching up to 50 million operations. Because of its compact size, it is ideal for applications where space is limited, such as operating systems, test and instrumentation, remote control and communications equipment, and industrial automation.
The working principle of the HE721B0510 is based on the magnetic field generated by the coil. When an electric current is applied, the magnetic field attracts the reed, which then makes contact with its neighboring metal piece, and the circuit is closed. The reed is then held in place until the current is removed and the magnetic field dissipates, allowing the reed to release, thereby breaking the circuit.
The HE721B0510 is used extensively in medical devices, such as body temperature detectors and breath monitors. It is also commonly used in telecommunication systems, where its high switching speed and reliability ensure smooth operation. It is also used in data storage systems, such as floppy disks, hard disks, CDs and DVDs.
In addition, the HE721B0510 is used in industrial automation systems, such as production lines, robotic systems, and automatic assembly systems. It is also used in utilities, such as building automation and power distribution systems. In addition, it is used in measurement and control systems, including temperature, voltage and pressure sensors.
In summary, the HE721B0510 is a popular reed relay that is used in a variety of applications and industries. Its small size and high current handling capability make it an excellent choice for many applications. Its high switching speed and reliability make it an ideal choice for data storage systems, medical devices, telecommunication systems, industrial automation systems, utilities, and measurement and control systems.
The specific data is subject to PDF, and the above content is for reference
Part Number | Manufacturer | Price | Quantity | Description |
---|
HE721A2400 | Littelfuse I... | 0.88 $ | 1564 | RELAY REED SPST 500MA 24V |
HE721A0520 | Littelfuse I... | 1.48 $ | 1000 | RELAY REED SPST 500MA 5V |
HE721C1230 | Littelfuse I... | 2.22 $ | 1000 | RELAY REED SPDT 250MA 12V |
HE721A2410 | Littelfuse I... | 1.06 $ | 1982 | RELAY REED SPST 500MA 24V |
HE721A0550 | Littelfuse I... | 0.0 $ | 1000 | RELAY REED SPST 500MA 5V |
HE721R1200 | Littelfuse I... | 0.0 $ | 1000 | RELAY REED SPDT 250MA 12V |
HE721R2400 | Littelfuse I... | 0.0 $ | 1000 | RELAY REED SPDT 250MA 24V |
HE721C2430 | Littelfuse I... | 4.29 $ | 1984 | RELAY REED SPDT 250MA 24V |
HE721R0510 | Littelfuse I... | 6.32 $ | 1000 | RELAY REED SPDT 250MA 5V |
HE722A0540 | Littelfuse I... | 0.0 $ | 1000 | RELAY REED DPST 500MA 5V |
HE721B0510 | Littelfuse I... | 2.03 $ | 1000 | RELAY RED SPST-NC 500MA 5... |
HE721C0540 | Littelfuse I... | 2.58 $ | 1000 | RELAY REED SPDT 250MA 5V |
HE722A0530 | Littelfuse I... | 3.09 $ | 1000 | RELAY REED DPST 500MA 5V |
HE721A1210 | Littelfuse I... | 1.23 $ | 6633 | RELAY REED SPST 500MA 12V |
HE721A0530 | Littelfuse I... | 1.55 $ | 1000 | RELAY REED SPST 500MA 5V |
HE721A1230 | Littelfuse I... | 1.55 $ | 1000 | RELAY REED SPST 500MA 12V |
HE721A2420 | Littelfuse I... | 0.0 $ | 1000 | RELAY REED SPST 500MA 24V |
HE721C1210 | Littelfuse I... | 1.98 $ | 1436 | RELAY REED SPDT 250MA 12V |
HE722A1230 | Littelfuse I... | 0.0 $ | 1000 | RELAY REED DPST 500MA 12V |
HE721R2410 | Littelfuse I... | 2.23 $ | 1000 | RELAY REED SPDT 250MA 24V |
HE722A1220 | Littelfuse I... | 0.0 $ | 1000 | RELAY REED DPST 500MA 12V |
HE721C2450 | Littelfuse I... | 2.49 $ | 1000 | RELAY REED SPDT 250MA 24V |
HE721C0520 | Littelfuse I... | 2.14 $ | 1000 | RELAY REED SPDT 250MA 5V |
HE721E2400 | Littelfuse I... | 5.31 $ | 562 | RELAY REED SPDT 250MA 24V |
HE722A1210 | Littelfuse I... | -- | 5380 | RELAY REED DPST 500MA 12V |
HE721A0510 | Littelfuse I... | -- | 22599 | RELAY REED SPST 500MA 5V |
HE721C0550 | Littelfuse I... | 0.0 $ | 1000 | RELAY REED SPDT 250MA 5V |
HE721A0500 | Littelfuse I... | 0.89 $ | 15427 | RELAY REED SPST 500MA 5V |
HE722A0510 | Littelfuse I... | 2.55 $ | 1952 | RELAY REED DPST 500MA 5V |
HE721C0500 | Littelfuse I... | -- | 3640 | RELAY REED SPDT 250MA 5V |
HE721C2410 | Littelfuse I... | 2.53 $ | 2395 | RELAY REED SPDT 250MA 24V |
HE721A2415 | Littelfuse I... | 0.0 $ | 1000 | RELAY REED SPST 500MA 24V |
HE721C1250 | Littelfuse I... | 2.3 $ | 1000 | RELAY REED SPDT 250MA 12V |
HE721A2430 | Littelfuse I... | 1.71 $ | 1000 | RELAY REED SPST 500MA 24V |
HE721A0515 | Littelfuse I... | 0.0 $ | 1000 | RELAY REED SPST 500MA 5V |
HE722A2450 | Littelfuse I... | 0.0 $ | 1000 | RELAY REED DPST 500MA 24V |
HE722A1200 | Littelfuse I... | 1.68 $ | 1450 | RELAY REED DPST 500MA 12V |
HE722A2400 | Littelfuse I... | -- | 1970 | RELAY REED DPST 500MA 24V |
HE722A0600 | Littelfuse I... | 1.36 $ | 1000 | RELAY REED DPST 500MA 5V |
HE721A0540 | Littelfuse I... | 0.77 $ | 1000 | RELAY REED SPST 500MA 5V |
RELAY REED SPST 1A 5V

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