Part Details for HE721A0500 by Littelfuse Inc
Results Overview of HE721A0500 by Littelfuse Inc
- Distributor Offerings: (12 listings)
- Number of FFF Equivalents: (0 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (0 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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HE721A0500 Information
HE721A0500 by Littelfuse Inc is a Reed Relay.
Reed Relays are under the broader part category of Relays.
A relay is an electromechanical switch that uses an electrical signal to open or close circuits, protecting systems from overcurrents or voltage surges. They are used in a variety of applications, including lighting control, telecommunication, automotive systems, and power protection. Read more about Relays on our Relays part category page.
Price & Stock for HE721A0500
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
28F2022
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Newark | Relay, Reed, Spst-No, 200Vdc, 0.5A, Tht, Contact Configuration:Spst-No, Coil Voltage:5Vdc, Product Range:He700 Series, Relay Mounting:Through Hole, Coil Resistance:500Ohm, Switching Current Max:500Ma, Switching Voltage Max:200Vdc Rohs Compliant: Yes |Littelfuse HE721A0500 RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk | 1778 |
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$1.0300 / $1.3000 | Buy Now |
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DISTI #
HE100-ND
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DigiKey | RELAY REED SPST 500MA 5V Min Qty: 1 Lead time: 37 Weeks Container: Tube |
1399 In Stock |
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$1.2374 / $1.9000 | Buy Now |
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DISTI #
934-HE721A0500
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Mouser Electronics | Reed Relays REED RELAY RoHS: Compliant | 531 |
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$1.1200 / $1.7800 | Buy Now |
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DISTI #
V99:2348_06438786
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Arrow Electronics | Reed Relay 5VDC 500Ohm 0.5A SPST-NO(19.5x9.52x5.5)mm THT Dry RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 13 Weeks Date Code: 2428 | Americas - 7133 |
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$1.0056 / $1.4310 | Buy Now |
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DISTI #
E02:0323_01970135
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Arrow Electronics | Reed Relay 5VDC 500Ohm 0.5A SPST-NO(19.5x9.52x5.5)mm THT Dry RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 37 Weeks Date Code: 2344 | Europe - 2080 |
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$0.8830 / $1.1068 | Buy Now |
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DISTI #
72244601
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RS | Reed Relay, HE700 Series, Miniature, Dual In-Line, SPDT, 0.5A, 5VDC Min Qty: 1 Package Multiple: 1 Container: Bulk | 500 |
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$1.5400 / $1.9200 | Buy Now |
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DISTI #
87211991
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Verical | Reed Relay 5VDC 500Ohm 0.5A SPST-NO(19.5x9.52x5.5)mm THT Dry RoHS: Compliant Min Qty: 8 Package Multiple: 1 Date Code: 2344 | Americas - 2080 |
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$0.8880 / $1.1131 | Buy Now |
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DISTI #
87604722
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Verical | Reed Relay 5VDC 500Ohm 0.5A SPST-NO(19.5x9.52x5.5)mm THT Dry RoHS: Compliant Min Qty: 31 Package Multiple: 1 | Americas - 221 |
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$1.9059 / $1.9412 | Buy Now |
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Bristol Electronics | Min Qty: 3 | 32 |
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$1.3500 / $1.8000 | Buy Now |
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Quest Components | RELAY REED DIP SPST-NO 5V | 25 |
|
$1.5000 / $2.4000 | Buy Now |
Part Details for HE721A0500
HE721A0500 CAD Models
HE721A0500 Part Data Attributes
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HE721A0500
Littelfuse Inc
Buy Now
Datasheet
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Compare Parts:
HE721A0500
Littelfuse Inc
Dry Reed Relay, 1 Form A, SPST, Momentary, 0.01A (Coil), 5VDC (Coil), 50mW (Coil), 0.5A (Contact), 200VDC (Contact), DC Input, Random, Through Hole-Straight Mount,
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| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Ihs Manufacturer | LITTELFUSE INC | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8536.49.00.50 | |
| Samacsys Manufacturer | LITTELFUSE | |
| Body Breadth | 7.22 mm | |
| Body Height | 5.5 mm | |
| Body Length or Diameter | 19.05 mm | |
| Coil Current(DC)-Max | 0.01 A | |
| Coil Operate Voltage(DC) | 3.75 V | |
| Coil Power | 50 mW | |
| Coil Release Voltage(DC) | 0.5 V | |
| Coil Resistance | 500 Ω | |
| Coil Voltage(DC)-Max | 12 V | |
| Coil Voltage-Nom | 5 V | |
| Coil/Input Supply Type | DC | |
| Contact (AC) Max Rating R Load | 0.35A@140VAC | |
| Contact Current(AC)-Max | 0.35 A | |
| Contact Current(DC)-Max | 0.5 A | |
| Contact (DC) Max Power Rating R Load | 10W@200VDC | |
| Contact (DC) Max Rating R Load | 0.5A@200VDC | |
| Contact Resistance | 150 mΩ | |
| Contact Voltage(AC)-Max | 140 V | |
| Contact Voltage(DC)-Max | 200 V | |
| Contact/Output Supply Type | AC/DC | |
| Input Switching Control Type | Random | |
| Insulation Resistance | 10000000000 Ω | |
| Mounting Feature | THROUGH HOLE-STRAIGHT | |
| Number of Terminals | 8 | |
| Operate Time | 1 ms | |
| Operating Temperature-Max | 85 °C | |
| Operating Temperature-Min | -40 °C | |
| Packing Method | BULK | |
| Reference Standard | CUL; UL | |
| Relay Action | MOMENTARY | |
| Relay Form | 1 FORM A | |
| Relay Function | SPST | |
| Relay Type | DRY REED RELAY | |
| Release Time | 1 ms | |
| Sealing | HERMETICALLY SEALED | |
| Surface Mount | NO | |
| Terminal Length | 0.002999745999491999 inch | |
| Termination Type | SOLDER |
HE721A0500 Frequently Asked Questions (FAQ)
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A recommended PCB layout for optimal thermal performance would be to have a large copper area connected to the thermal pad, with multiple vias to dissipate heat. A minimum of 2oz copper thickness is recommended.
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To ensure reliable soldering, use a soldering iron with a temperature range of 250-260°C, and a solder with a melting point of 217-220°C. Apply a small amount of solder paste to the pads and reflow at 250-260°C for 1-2 seconds.
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The maximum allowed voltage transient for the HE721A0500 is 1.5 times the maximum rated voltage, but not exceeding 100V. Exceeding this limit may cause damage to the device.
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The HE721A0500 is rated for operation up to 150°C. However, derating is required for temperatures above 125°C. Consult the datasheet for derating curves and ensure proper thermal management to prevent overheating.
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Handle the HE721A0500 with ESD-protective equipment, such as wrist straps, mats, and bags. Ensure that all personnel handling the device are grounded and follow proper ESD handling procedures.