Littelfuse PCB Mount Reed Relay, 5V dc Coil, SPST, 200V Max, 500 mA Max, 500Ω
- RS Stock No.:
 - 174-0476
 - Mfr. Part No.:
 - HE721A0510
 - Brand:
 - Littelfuse
 
- RS Stock No.:
 - 174-0476
 - Mfr. Part No.:
 - HE721A0510
 - Brand:
 - Littelfuse
 
Select all  | Attribute | Value | 
|---|---|---|
| Brand | Littelfuse | |
| Contact Configuration | SPST | |
| Coil Voltage | 5V dc | |
| Mounting Type | PCB Mount | |
| Maximum Switching Current DC | 500 mA | |
| Maximum Switching Voltage DC | 200V | |
| Coil Resistance | 500Ω | |
| Length | 19.05mm | |
| Height | 5.5mm | |
| Depth | 7.22mm | |
| Dimensions | 19.05 x 7.22 x 5.5mm | |
| Isolation Coil To Contact | 500V ac | |
| Contact Resistance | 150 mΩ | |
| Operating Temperature Range | -40 → +85°C | |
| Operating Time Including Bounce | 1ms | |
| Number of Poles | 1 | |
| Maximum Operating Temperature | +85°C | |
| Maximum Switching Power DC | 10 W | |
| Minimum Operating Temperature | -40°C | |
| Special Features | Diode Suppression Option, External Magnetic Shield Option, Optional Coil Suppression Diode → Protect Coil Drive Circuits | |
| Terminal Type | PCB Pin | |
| Select all | ||
|---|---|---|
Brand Littelfuse  | ||
Contact Configuration SPST  | ||
Coil Voltage 5V dc  | ||
Mounting Type PCB Mount  | ||
Maximum Switching Current DC 500 mA  | ||
Maximum Switching Voltage DC 200V  | ||
Coil Resistance 500Ω  | ||
Length 19.05mm  | ||
Height 5.5mm  | ||
Depth 7.22mm  | ||
Dimensions 19.05 x 7.22 x 5.5mm  | ||
Isolation Coil To Contact 500V ac  | ||
Contact Resistance 150 mΩ  | ||
Operating Temperature Range -40 → +85°C  | ||
Operating Time Including Bounce 1ms  | ||
Number of Poles 1  | ||
Maximum Operating Temperature +85°C  | ||
Maximum Switching Power DC 10 W  | ||
Minimum Operating Temperature -40°C  | ||
Special Features Diode Suppression Option, External Magnetic Shield Option, Optional Coil Suppression Diode → Protect Coil Drive Circuits  | ||
Terminal Type PCB Pin  | ||
- COO (Country of Origin):
 - CN
 
Miniature dual-in-line (DIL) package
Available with normally open contacts
Benefits:
One relay, various contact choices help to reduce space and cost without compromising flexibility
Lower coil power consumption than electromechanical devices
Hermetically sealed switching contacts are immune to their environment
Transfer molded package gives maximum component protection
Applications:
Security systems
Telecom equipment
Process control systems
Industrial equipment
Instrumentation
