
ST-LCR3 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $49.99 | Condition is New, RDL ST-LCR3 Logic-Controlled Relay (Dual Alternate Pulse) NEW, FREE SHIPPING | 99.2% |
![]() | $218.55 | Top Pick! Condition is New, RDL ST-LCR3 Logic Controlled Relay/Dual Alternate Pulse, FREE SHIPPING | 99.8% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $69.99 | Condition is Used, RDL ST-LCR3 Logic-Controlled Relay (Dual Alternate Pulse) with Power Supply, FREE SHIPPING | 100.0% |

Introducing the RDL ST-LCR3 2x Radio Design Labs Alternate Pulse Dual Relays, a versatile and reliable solution for your electrical switching needs. These relays are engineered with precision and quality by Radio Design Labs, a trusted name in the industry.
The ST-LCR3 Dual Relays feature an alternate pulse design, which provides improved contact life and reduced bounce compared to standard relays. Each relay can handle a maximum load of 10 amperes at 125 volts AC or 30 volts DC. They are suitable for various applications, including automotive, industrial, and commercial use.
The relays operate with a coil voltage of 12 volts DC and have a contact rating of 250,000 cycles. They are designed with a compact form factor, making them easy to install in confined spaces. The relays also come with a built-in coil overvoltage protection to prevent damage from voltage spikes.
The RDL ST-LCR3 Dual Relays offer excellent electrical performance. They have a low contact resistance, ensuring efficient power transfer and minimal power loss. The relays also have a low coil impedance, which results in quick response time and reduced switching noise.
The relays come with screw terminals for easy and secure wiring. They are also RoHS compliant, meaning they contain no hazardous substances, making them an environmentally friendly choice. The relays are also backed by a one-year warranty from Radio Design Labs, ensuring customer satisfaction and peace of mind.
In summary, the RDL ST-LCR3 2x Radio Design Labs Alternate Pulse Dual Relays are a high-performance and reliable switching solution for various applications. They offer improved contact life, quick response time, and easy installation, making them a popular choice among electrical engineers and technicians.
The RDL ST-LCR3 2x Radio Design Labs Alternate Pulse Dual Relays are electronic components commonly used in various applications such as radio control systems, telemetry systems, and automation projects. Here are some potential pros and cons of buying these relays:
Pros:1. Dual-Channel: These relays offer the convenience of controlling two separate circuits with a single power source and control signal.
2. Alternate Pulse Design: This design reduces the risk of arcing and noise, making it suitable for applications where quiet operation is essential.
3. Low Power Consumption: These relays have a low power consumption of 14mA maximum at 12VDC, making them energy-efficient.
4. Rugged Construction: They are designed to withstand harsh environments and can operate in temperatures ranging from -40 C to 85 C.
5. Easy to Install: These relays have a compact size, making them easy to install in various projects.
Cons:1. Limited Current Capacity: These relays have a maximum current capacity of 2A per channel, which may not be sufficient for high-power applications.
2. Requires External Diode: To protect the coil from inductive voltage spikes, an external diode is required for each relay.
3. Sensitive to EMI/RFI: These relays may be sensitive to electromagnetic interference (EMI) and radio-frequency interference (RFI), which could affect their performance in some applications.
4. Manual Operation: These relays do not have a built-in automatic function, which means they need to be manually controlled.
In conclusion, the RDL ST-LCR3 2x Radio Design Labs Alternate Pulse Dual Relays are a reliable and versatile option for various applications where quiet operation, low power consumption, and compact size are essential. However, their limited current capacity, sensitivity to EMI/RFI, and manual operation may make them unsuitable for high-power applications or projects that require automatic control.
If you are looking for relays for a project that requires a higher current capacity, automatic control, or greater resistance to EMI/RFI, you may want to consider alternative options. However, if your project meets the requirements of these relays, they can be a cost-effective and efficient solution.
Recommendation: If the RDL ST-LCR3 2x Radio Design Labs Alternate Pulse Dual Relays meet the specifications of your project, they are a great choice due to their quiet operation, low power consumption, and rugged construction. However, if you require higher current capacity, automatic control, or greater resistance to EMI/RFI, you may want to consider alternative options.
Details:
Shipped with USPS ground advantage. 2x radio design labs ST-LCR3 alternate pulse dual relays. Condition is new.
specifications audioproequip:
- brand: Rdl
- mpn: St-lcr3
- compatible brand: Universal
- type: Switch
- suited for: Switching
- country of origin: United States
general audioproequip:
- category: Musical Instruments > Pro Audio Equipment Parts
offer audioproequip:
- prices: $49.99–$218.55
- item condition:
- New
- Used
- sold #: 12
- started: november 23, 2025
- in stock #: 3
- options: ship-to-home
- best offers: true
- availability: in stock
seller audioproequip:
- rating: 98.1%
- city: staten island, new york
- # reviews: 566
payments audioproequip:
- other
- credit card: diners-club
- wallet: apple-pay
returns audioproequip:
- policy: no returns
shipping audioproequip:
- type: calculated
- class: standard
- carrier: usps
- transit: 6-12 days
- service: usps ground advantage
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