Reed relays are compact, fast, and efficient electromagnetic switching devices. These components provide precise, low-leakage isolation between control and signal circuits. At Summit Electronics, we stock over 1,000 units of the Hamlin HE721C1230 reed relay, making us a top source for engineers and procurement teams who need reliable switching solutions.
This specific relay offers strong performance for signal integrity and longevity. It is often used in critical applications that demand low power consumption and high isolation. That’s why it remains a preferred choice for RF switching, medical devices, instrumentation, and more.
Summit Electronics is a global distributor with a proven track record for supplying legacy electronic components and obsolete electronic parts. Our team focuses on accuracy, speed, and price. If you’re sourcing hard-to-find electronics, the HE721C1230 is in stock and ready to ship.
What Is the Hamlin HE721C1230 Reed Relay?
The HE721C1230 is a hermetically sealed reed relay manufactured by Hamlin. It uses an electromagnetic coil to control the opening and closing of magnetic contacts housed in a glass tube. The device is ideal for applications where electrical isolation and precision switching are required.
Because it’s a dry-switching device, there’s minimal contact bounce and no arcing. The result is a long-life relay with fast actuation times and stable switching characteristics.
This part is often selected over other types of relays due to its compact footprint and resistance to external contaminants.
Specs and Technical Overview
Here’s a breakdown of key specifications for the HE721C1230:
- Coil Voltage: 5 VDC
- Coil Resistance: 500 ohms
- Contact Form: SPST (Normally Open)
- Switching Voltage (Max): 200 VDC
- Switching Current (Max): 0.5 A
- Carry Current: 1.5 A
- Insulation Resistance: 10^10 ohms min
- Operate Time: 0.5 ms typical
- Release Time: 0.1 ms typical
- Mounting Style: Through-hole
- Temperature Range: -40°C to +85°C
This configuration allows for high-speed switching in a compact, durable package.
Where the HE721C1230 Fits In
The HE721C1230 is used across industries that require stable signal switching and galvanic isolation. Common applications include:
- RF and microwave test equipment
- Industrial automation systems
- Aerospace communications
- Defense & Military electronics
- Medical instrumentation
- Robotics control modules
- Telecom switching circuits
Its reliability and isolation specs make it a strong fit for environments where clean signal routing is a priority.
Performance and Reliability in Action
This reed relay delivers consistent switching under demanding conditions. As an electromagnetic switching device, the HE721C1230 provides:
- Fast actuation and low contact resistance
- High insulation between coil and contacts
- Minimal power draw
- Resistance to mechanical shock and vibration
- Long mechanical life, rated for millions of operations
Engineers often choose this relay when mechanical relays are too bulky or when solid-state switches don’t offer enough isolation.
Summit Electronics: Your Source for Reed Relays and More
We currently stock over 1,000 units, ready for immediate shipment. Whether you need a few units for prototyping or full reels for production, we’ve got you covered.
Summit Electronics specializes in obsolete electronic parts, legacy electronic components, and hard-to-find electronics. We’ve built long-standing relationships with manufacturers, repair shops, and global suppliers. Our team can quickly source, quote, and ship parts that other vendors can’t supply.
If you’re working on a time-sensitive project or maintaining older systems, trust us to keep your supply chain moving. We will keep your systems powered, operational, and productive. Contact us today to request a quote. Click here or give us a call toll-free at (800) 226-6960.
