Part Details for UB2-4.5NU by EM Devices Corporation
Results Overview of UB2-4.5NU by EM Devices Corporation
- Distributor Offerings: (0 listings)
- Number of FFF Equivalents: (3 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (0 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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Applications
Space Technology
Aerospace and Defense
UB2-4.5NU Information
UB2-4.5NU by EM Devices Corporation is a Power/Signal Relay.
Power/Signal 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.
Part Details for UB2-4.5NU
UB2-4.5NU CAD Models
UB2-4.5NU Part Data Attributes
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UB2-4.5NU
EM Devices Corporation
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Datasheet
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UB2-4.5NU
EM Devices Corporation
Power/Signal Relay, DPDT, Momentary, 0.031A (Coil), 4.5VDC (Coil), 140mW (Coil), 1A (Contact), 220VDC (Contact), DC Input, AC/DC Output, Surface Mount-Straight, ROHS COMPLIANT
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| Rohs Code | Yes | |
| Part Life Cycle Code | Contact Manufacturer | |
| Ihs Manufacturer | EM DEVICES CORP | |
| Package Description | ROHS COMPLIANT | |
| Reach Compliance Code | compliant | |
| Body Breadth | 5.7 mm | |
| Body Height | 8.8 mm | |
| Body Length or Diameter | 10.6 mm | |
| Coil Current(DC)-Max | 0.031 A | |
| Coil Operate Voltage(DC) | 3.38 V | |
| Coil Power | 140 mW | |
| Coil Release Voltage(DC) | 0.45 V | |
| Coil Resistance | 145 Ω | |
| Coil Voltage(DC)-Max | 4.5 V | |
| Coil/Input Supply Type | DC | |
| Contact (AC) Max Rating R Load | 1A@250VAC | |
| Contact Current(AC)-Max | 1 A | |
| Contact Current(DC)-Max | 1 A | |
| Contact (DC) Max Rating R Load | 1A@220VDC | |
| Contact Voltage(AC)-Max | 250 V | |
| Contact Voltage(DC)-Max | 220 V | |
| Contact/Output Supply Type | AC/DC | |
| Electrical Life | 100000 Cycle(s) | |
| Mounting Feature | SURFACE MOUNT-STRAIGHT | |
| Operate Time | 2 ms | |
| Operating Temperature-Max | 85 °C | |
| Operating Temperature-Min | -40 °C | |
| Packing Method | TUBE | |
| Physical Dimension | 10.6mm x 5.7mm x 8.8mm | |
| Reference Standard | CSA; TUV; UL | |
| Relay Action | MOMENTARY | |
| Relay Function | DPDT | |
| Relay Type | POWER/SIGNAL RELAY | |
| Release Time | 1 ms | |
| Surface Mount | NO | |
| Termination Type | SOLDER |
Alternate Parts for UB2-4.5NU
This table gives cross-reference parts and alternative options found for UB2-4.5NU. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of UB2-4.5NU, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
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| UB2-4.5NU | TOKIN Corporation | Check for Price | Power/Signal Relay, DPDT, Momentary, 0.031A (Coil), 4.5VDC (Coil), 140mW (Coil), 1A (Contact), 220VDC (Contact), DC Input, AC/DC Output, Surface Mount-Straight, ROHS COMPLIANT | UB2-4.5NU vs UB2-4.5NU |
| UB2-4.5NUN-L | TOKIN Corporation | Check for Price | Power/Signal Relay, DPDT, Momentary, 0.031A (Coil), 4.5VDC (Coil), 140mW (Coil), 1A (Contact), 220VDC (Contact), DC Input, AC/DC Output, Surface Mount-Straight, ROHS COMPLIANT | UB2-4.5NU vs UB2-4.5NUN-L |
| UB2-4.5NUN | TOKIN Corporation | Check for Price | Power/Signal Relay, DPDT, Momentary, 0.031A (Coil), 4.5VDC (Coil), 140mW (Coil), 1A (Contact), 220VDC (Contact), DC Input, AC/DC Output, Surface Mount-Straight, ROHS COMPLIANT | UB2-4.5NU vs UB2-4.5NUN |
UB2-4.5NU Frequently Asked Questions (FAQ)
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The recommended PCB layout involves keeping the input and output traces separate, using a solid ground plane, and placing the device near a heat sink or thermal pad. A thermal management strategy should include a heat sink with a thermal conductivity of at least 1 W/m-K and a thermal interface material with a thermal conductivity of at least 5 W/m-K.
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To ensure reliable operation in high-vibration environments, it's recommended to use a secure mounting method, such as screwing or adhesive, and to follow the manufacturer's guidelines for vibration testing. Additionally, consider using a vibration-dampening material, such as a silicone-based adhesive, to reduce the impact of vibrations on the device.
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Operating the UB2-4.5NU beyond the recommended temperature range can lead to reduced performance, decreased lifespan, and potential failure. The device may experience thermal runaway, reduced output power, and increased noise. It's essential to ensure the device operates within the recommended temperature range to maintain optimal performance and reliability.
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To troubleshoot issues with the UB2-4.5NU, start by verifying the input voltage, output load, and ambient temperature are within the recommended specifications. Check for proper PCB layout, thermal management, and component selection. Use oscilloscopes or multimeters to measure output voltage, current, and temperature. Consult the datasheet and application notes for guidance on troubleshooting specific issues.
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Yes, the UB2-4.5NU is a switching regulator, which can generate electromagnetic interference (EMI). To minimize EMI, use a shielded enclosure, keep the device away from sensitive components, and use EMI filters or chokes on the input and output lines. Ensure the PCB layout follows good EMI design practices, such as using a solid ground plane and minimizing loop areas.