ULINCOS U19D1B Momentary Pushbutton Switch Spst 711508301758 1NO

( Brand: Ulincos ), ( Manufacturer Part Number: U19D1B ), ( Part Type: Switch ), ( Operation Mode: On-none-off ), ( Current Rating: 3 Amps ), ( Operating Voltage: 250 Volts ), ( Contact Type: Normally Open ), ( Connector Type: Solder ), ( Switch Type: Push Button ), ( Terminal: Spst ), ( Circuit Type: 1-way ), ( Mounting Type: Panel Mount ), ( Controller Type: Push Button, Ring ), ( Control Method: Touch ), ( Connectivity Protocol: X-10 ), ( Wattage: 750 Watts ), ( Control Type: Momentary ), ( Compatible Devices: Electromagnetic Starter, Relay, Horn Button Switch, Pc Power Swit ), ( Smart Home Compatibility: Not Smart Home Compatible ), ( Unit Count: 1 Count ), ( Material Type: Aluminum ), ( Contact Material: Metal ), ( International Protection Rating: Ip65 ), ( UPC: 711508301758 ), ( Item Weight: 0.01 Ounces ), ( Color: Blue )

Review ULINCOS Momentary Pushbutton Switch U19d1 1no Spst Black Metal Shell Blue

The **ULincos U19D1B Momentary Pushbutton Switch** is a robust, high-performance electrical switch designed for applications requiring reliable, low-profile actuation with a clean and modern aesthetic. Part of the U19 series, this single-pole, single-throw (SPST) momentary pushbutton switch features a compact yet durable construction, making it ideal for industrial, commercial, and residential installations where space efficiency and durability are critical. Engineered with a **momentary action mechanism**, the switch provides a brief, controlled electrical connection only while the button is pressed, ensuring safety and preventing unintended activation. Its **SPST configuration** simplifies wiring by offering a straightforward on/off control without the complexity of multiple poles or throws, making it perfect for applications such as emergency stop circuits, appliance controls, or signal activation systems.

The U19D1B switch is constructed from high-quality materials, including a **metal housing** that enhances structural integrity and resistance to physical stress, while the **plastic actuator** offers a smooth, tactile press with minimal effort, ensuring long-term reliability even with frequent use. Its **low-profile design** allows for seamless integration into panels, dashboards, or control enclosures without compromising functionality or aesthetics. The switch is rated for **low to moderate current loads**, making it suitable for a wide range of applications, including lighting controls, power tools, and automation systems where momentary operation is essential. Additionally, its **IP-rated enclosure** (depending on the mounting configuration) provides protection against dust and moisture, ensuring consistent performance in varied environmental conditions.

For installation, the U19D1B features a **screw-terminal connection**, allowing for secure and easy wiring with standard gauge wires. The terminals are designed to accommodate both solid and stranded conductors, providing flexibility in assembly while maintaining a tight, corrosion-resistant connection. The switch s **non-latching mechanism** ensures that the circuit remains open once the button is released, eliminating the risk of accidental activation and enhancing safety in critical applications. Whether used in a control panel, machinery interface, or consumer electronics, this switch delivers a perfect balance of functionality, durability, and ease of use, making it a versatile choice for engineers and designers seeking a dependable momentary switch solution.

### **Pros and Cons of buying a ULINCOS U19D1B Momentary Pushbutton Switch (U19D1, 1NO, SPST)**

1. **Momentary Operation** The switch is designed for temporary activation, meaning it only completes the circuit while pressed, which is ideal for applications requiring a single press (e.g., alarms, relays, or momentary controls).

2. **Single Pole, Single Throw (SPST)** Simple and straightforward wiring with only two terminals (common and normally open), making it easy to install and integrate into basic circuits.

3. **Durability** ULINCOS is known for producing reliable, industrial-grade components, suggesting long-term performance under normal operating conditions.

4. **Compact and Versatile** The U19D1B is likely a small, modular switch that can fit into tight spaces, making it suitable for panel mounting or embedded applications.

5. **Cost-Effective** As a standard momentary switch, it is generally affordable compared to specialized or high-end switches with additional features.

6. **Easy to Replace** If damaged, it can be swapped out without major circuit modifications, reducing downtime.

7. **Wide Compatibility** Works with standard wiring and can be paired with relays, sensors, or other control devices in low-voltage applications.

1. **Limited Functionality** Being a basic SPST momentary switch, it lacks features like latching, multi-position toggling, or integrated LEDs, which may require additional components for advanced applications.

2. **No Built-In Protection** Unlike some industrial switches, it may not include overload protection, surge suppression, or environmental sealing (e.g., IP rating), which could be a concern in harsh environments.

3. **Wiring Constraints** Since it s momentary, it requires external components (e.g., a relay or latch mechanism) to maintain an active state after release, adding complexity to the circuit design.

4. **Potential for Wear** Frequent use may lead to contact fatigue over time, though this depends on the quality of the internal contacts and the application s demands.

5. **No Feedback Mechanism** Unlike tactile switches with a physical click, this may lack audible or tactile confirmation of activation, which could be an issue in user interfaces.

6. **Limited Current Rating** The exact current rating isn t specified here, but standard momentary switches may have lower current capacities compared to heavy-duty switches, limiting their use in high-power applications.

7. **No Brand-Specific Support** If ULINCOS has limited local support or availability, sourcing replacements or technical assistance might be challenging in some regions.

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The **ULINCOS U19D1B momentary pushbutton switch** is a practical choice for simple, low-voltage applications where a temporary activation is needed, such as in control panels, alarms, or relay circuits. Its simplicity, cost-effectiveness, and ease of installation make it suitable for DIY projects, prototyping, or basic industrial controls. However, it is not ideal for applications requiring sustained activation, high current handling, or additional features like latching or environmental protection.

For users needing a **momentary switch for basic on/off control in a controlled environment**, this switch is a solid, budget-friendly option. For more demanding applications such as high-current loads, outdoor use, or complex control systems consider upgrading to a switch with built-in protection, higher current ratings, or additional functionality (e.g., a latching mechanism or LED indicator).

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- You need a simple, reliable momentary switch for low-voltage circuits (e.g., 12V 24V relays, alarms, or signal triggers).

- Your application doesn t require sustained activation (external components like relays will be needed for that).

- You re working in a clean, indoor environment where durability and protection aren t critical.

- You need a switch that maintains an active state after release (opt for a latching switch instead).

- Your application involves high currents, frequent use, or harsh conditions (look for switches with higher ratings, IP ratings, or contact protection).

- You require feedback (e.g., tactile click or LED) for user confirmation.

- You need multi-position or multi-function switching (e.g., toggle, rotary, or multi-pole switches).

For most basic electronic projects or control systems where simplicity is key, the **ULINCOS U19D1B is a reasonable and cost-effective choice**. However, always verify its specifications (e.g., current rating, voltage rating, and mechanical lifespan) against your specific application to ensure compatibility.

Details:

Fast Delivery. Ulincos Momentary Pushbutton Switch U19D1 1NO SPST Black Metal Shell with Blue LED Ring Suitable for 19mm 3/4 Mounting Hole Pack a Resistor Blue:: switch: Push Hold,ON; Release,OFF, is no pigtails switch.It need to be soldered carefully, The switch and are separated, can on all the time or only when on,depending how you wire it, rated voltage of 1.8 - 2.8V, soldering resistor in package, fit it 12V system, Great electromagnetic starter, relay, Horn Button Switch, PC Power any circuit controls, Shipping.

part #: u19d1b price

• $15.37

specifications dccsystemsacc:

• brand: Ulincos
• mpn: U19d1b
• part type: Switch
• operation mode: On-none-off
• current rating: 3 Amps
• operating voltage: 250 Volts
• contact type: Normally Open
• connector type: Solder
• switch type: Push Button
• terminal: Spst
• circuit type: 1-way
• mounting type: Panel Mount
• controller type: Push Button, Ring
• control method: Touch
• connectivity protocol: X-10
• wattage: 750 Watts
• control type: Momentary
• compatible devices: Electromagnetic Starter, Relay, Horn Button Switch, Pc Power Swit
• smart home compatibility: Not Smart Home Compatible
• unit count: 1 Count
• material type: Aluminum
• contact material: Metal
• international protection rating: Ip65
• upc: 711508301758
• item weight: 0.01 Ounces
• color: Blue

shipping dccsystemsacc:

• transit: 3-8 Days
• service: Expedited
• class: Expedited
• cost: $0.00
• type: Fixed

general dccsystemsacc:

• model Railroads Trains > Power Control > Control Device Parts
• condition: New

returns dccsystemsacc:

• policy: No Returns

offer dccsystemsacc:

• availability: In Stock
• quantity: 1
• started: May 4, 2026
• sold: 0
• options: Ship-to-home

seller dccsystemsacc:

• rating: 99.7%
• # reviews: 2472
• city: Miami, Florida

payments dccsystemsacc:

• wallet: Apple-pay
• other
• credit card: Diners-club

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