RK73B1ETTP220J KOA Speer Resistor (Resistor Chip) In Stock
KOA Speer RK73B1ETTP220J is a thick film SMD resistor with 22 ohm resistance and 5% tolerance rated at 1/16W. Its compact 0402 package (1.0 x 0.5 mm) and RoHS-compliant construction suit high-density PCB designs. Ideal for consumer electronics, mobile devices, and signal conditioning circuits requiring reliable, space-saving passive components.
- Manufacturer
- KOA Speer
- Package
- Resistor Chip
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- RK73B1ETTP220J Datasheet PDF
- Category
- Resistor
- Temp Range
- -55.0°C to 155.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 22 ohm thick film resistor in ultra-compact 0402 SMD package measuring 1.0 x 0.5 mm for high-density layouts
- 1/16W power rating with 5% tolerance providing cost-effective precision for signal path and bias applications
- RoHS-compliant and Pb-free construction meeting REACH standards for global environmental regulations
Applications
The KOA Speer RK73B1ETTP220J is widely used in smartphone PCBs, wearable electronics, and IoT sensor modules where board space is at a premium. Its 22 ohm, 1/16W rating suits pull-up/pull-down resistor networks, current-limiting circuits, and signal termination in low-power digital designs. The 0402 form factor enables high component density for modern multilayer PCB assemblies in consumer and industrial electronics.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 13 |
| Construction | Rectangular |
| JESD-609 Code | e3 |
| Mounting Feature | SURFACE MOUNT |
| Package Height | 0.35mm |
| Package Length | 1mm |
| Package Shape | RECTANGULAR PACKAGE |
| Package Style | SMT |
| Package Width | 0.5mm |
| Packing Method | TR, Punched Paper, 7 Inch |
| Rated Power Dissipation (P) | 0.1W |
| Rated Temperature | 70°C |
| Reference Standard | AEC-Q200, IEC60115-8 |
| Resistance | 22Ω |
| Resistor Type | FIXED RESISTOR |
| Size Code | 0402 |
| Surface Mount | YES |
| Technology | METAL GLAZE/THICK FILM |
| Temperature Coefficient | 200ppm/°C |
| Terminal Finish | Matte Tin (Sn) - with Nickel (Ni) barrier |
| Terminal Shape | WRAPAROUND |
| Tolerance | 5% |
| Working Voltage | 75V |
| Package | Resistor Chip |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8533.21.00.30 |
| Country of Origin | Japan, Mainland China, Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What power rating and tolerance does the KOA Speer RK73B1ETTP220J provide for circuit design?
The KOA Speer RK73B1ETTP220J offers a 1/16W power rating with 5% tolerance on its 22 ohm resistance. This combination makes it suitable for low-power signal path applications such as pull-up resistors, current limiting, and voltage dividers in consumer electronics and mobile device PCBs where space efficiency is critical.
How does the 0402 package size of the RK73B1ETTP220J benefit high-density PCB assembly?
The RK73B1ETTP220J measures 1.0 mm x 0.5 mm x 0.35 mm in its 0402 SMD package, one of the smallest standard chip resistor footprints available. This compact size allows engineers to place more components per square centimeter on multilayer PCBs, enabling miniaturization of smartphones, wearables, and IoT devices without sacrificing circuit functionality.
Can the RK73B1ETTP220J be used as an LED current-limiting resistor, and what LED current would result from a 3.3 V supply?
Yes, the 22 ohm RK73B1ETTP220J can serve as an LED current-limiting resistor. With a 3.3 V supply and a typical LED forward voltage of 2.0 V, the resistor limits LED current to approximately 59 mA — however, this exceeds its 1/16W rating, so a lower-current LED application near 10 mA at 3.3 V minus 3.0 V forward voltage would be more appropriate for safe operation.
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About KOA Speer
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