RK73H2ATTD1000F: Premium 100 1% 0.25W Surface Mount Chip Resistor by KOA Speer

The RK73H2ATTD1000F from KOA Speer Electronics represents the gold standard in surface mount chip resistors, combining precision engineering with robust automotive-grade performance. This comprehensive guide explores every aspect of this exceptional component to help engineers and procurement specialists make informed decisions.

In-Depth Product Analysis

Manufacturer Profile

KOA Speer Electronics, Inc. stands as a global leader in passive component manufacturing with:

• 75+ years of industry experience
• ISO 9001 and IATF 16949 certified facilities
• 20+ billion annual resistor production capacity
• Worldwide technical support network

Detailed Specifications

Electrical Characteristics

Parameter	Value
Resistance	100 1%
Power Rating	0.25W at 70 C
TCR	100ppm/ C
Voltage Rating	150V
Dielectric Withstanding Voltage	300V

Environmental Performance

• AEC-Q200 Qualified: Meets rigorous automotive reliability standards including:
  • 1000+ temperature cycles (-55 C to +155 C)
  • 1000 hours damp heat testing
  • Mechanical shock and vibration resistant
• Moisture Sensitivity Level (MSL): Level 1
• Flame Resistance: UL94 V-0 compliant

Advanced Design Features

Thick Film Technology Advantages

The RK73H2ATTD1000F utilizes advanced thick film construction providing:

• Superior pulse withstand capability
• Excellent long-term stability (<0.5% after 10,000 hours)
• Low noise characteristics
• Precision laser trimming to 0.1% if required

0805 Package Benefits

• Optimal balance between size and power handling
• Compatible with all standard SMT assembly processes
• Excellent solderability with SAC305 or SnPb solders
• Termination: Matte Sn over Ni barrier layer

Comprehensive Application Guide

Automotive Electronics

• ECU modules
• LED lighting systems
• Sensor interfaces
• Infotainment systems

Industrial Applications

• PLC control boards
• Power supplies
• Motor drives
• Test and measurement equipment

Consumer Electronics

• Smart home devices
• Wearable technology
• Audio/video equipment
• Gaming consoles

Competitive Advantages

Performance Comparison

Compared to standard 0805 resistors, the RK73H2ATTD1000F offers:

• 50% better power derating characteristics
• 3x longer operational lifespan
• Superior moisture resistance
• Tighter resistance distribution

Reliability Data

• MTBF: >10 million hours
• PPM rates: <10 under normal operating conditions
• Endurance: <1% resistance change after 1000 temperature cycles

Technical Support Resources

KOA Speer provides extensive support for the RK73H2ATTD1000F including:

• SPICE models for circuit simulation
• Detailed application notes
• Thermal management guidelines
• PCB layout recommendations
• Failure analysis services

Purchasing Information

• Available in tape-and-reel packaging (3000 pieces/reel)
• MOQ: 1 reel (3000 pieces)
• Standard lead time: 4-6 weeks
• RoHS and REACH compliant

Conclusion

The RK73H2ATTD1000F represents the pinnacle of surface mount resistor technology, offering unmatched reliability for mission-critical applications. Its combination of precision, durability, and automotive-grade certification makes it the ideal choice for engineers designing next-generation electronic systems.

For design engineers seeking components that deliver both performance and peace of mind, the RK73H2ATTD1000F from KOA Speer stands ready to meet your most demanding circuit requirements.