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HUL7251 from Panasonic

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HUL7251

Manufacturer: Panasonic

Opto Electronic Devices
Partnumber Manufacturer Quantity Availability
HUL7251 Panasonic 497 In Stock

Description and Introduction

Opto Electronic Devices The part HUL7251 is manufactured by Panasonic. Here are its specifications:

- **Type**: Relay  
- **Contact Form**: 1 Form A (SPST-NO)  
- **Contact Rating**: 2 A at 250 VAC, 2 A at 30 VDC  
- **Coil Voltage**: 5 VDC  
- **Coil Resistance**: 178 Ω  
- **Operate Time**: 5 ms max  
- **Release Time**: 3 ms max  
- **Insulation Resistance**: 1,000 MΩ min at 500 VDC  
- **Dielectric Strength**: 1,000 VAC (between coil and contacts)  
- **Operating Temperature Range**: -40°C to +85°C  
- **Weight**: Approx. 2.5 g  

These are the factual specifications for the Panasonic HUL7251 relay.

Application Scenarios & Design Considerations

Opto Electronic Devices

Alternative Part Number

  • AQY212S --: Panasonic PhotoMOS solid-state relay in a small SOP package, functionally similar to the HUL7251 optocoupler/SSR type device and a common drop-in style replacement.
  • TLP172A --: Widely available optocoupler/SSR driver in a comparable package and rating class, offering a cross-manufacturer alternative with similar isolation and switching behavior.
  • PC817 --: Industry-standard general-purpose optocoupler with similar isolation voltage and output characteristics, suitable as a low-cost functional substitute when exact matching is not critical.

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