RK73B2ATTD561J KOA Speer Resistor (Resistor Chip) In Stock
The RK73B2ATTD561J is a thick-film surface-mount resistor in 0805 case with 560 Ω resistance, ±5% tolerance, 0.25 W power rating, and ±200 ppm/°C temperature coefficient, suitable for general-purpose SMT circuit designs.
- Manufacturer
- KOA Speer
- Package
- Resistor Chip
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- RK73B2ATTD561J 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
- 560 Ω resistance with ±5% tolerance meeting IEC 60115-8 requirements for general signal conditioning
- 0.25 W power rating in a compact 0805 case (2 mm × 1.25 mm) handling moderate current levels without heatsinking
- ±200 ppm/°C temperature coefficient providing predictable resistance drift across -55°C to 155°C operating range
- RoHS-compliant and REACH-compliant thick-film construction for global regulatory acceptance
- Tape-and-reel packaging available for high-speed automated pick-and-place assembly on SMT lines
Applications
The RK73B2ATTD561J is used as a pull-up, current-limiting, or voltage-divider resistor in digital logic circuits, LED driver stages, and sensor interface boards where a 560 Ω value and 0.25 W rating adequately handle the required current. Its 0805 footprint is a standard size easily placed by automated SMT equipment in consumer electronics, industrial controllers, and telecommunications equipment. The ±5% tolerance and ±200 ppm/°C coefficient are well within the budget for non-precision analog stages and general-purpose signal routing.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 12 |
| Construction | Rectangular |
| JESD-609 Code | e3 |
| Mounting Feature | SURFACE MOUNT |
| Package Height | 0.5mm |
| Package Length | 2mm |
| Package Shape | RECTANGULAR PACKAGE |
| Package Style | SMT |
| Package Width | 1.25mm |
| Packing Method | TR, Punched Paper, 7 Inch |
| Rated Power Dissipation (P) | 0.25W |
| Rated Temperature | 70°C |
| Reference Standard | AEC-Q200, IEC60115-8 |
| Resistance | 560Ω |
| Resistor Type | FIXED RESISTOR |
| Size Code | 0805 |
| Surface Mount | YES |
| Technology | METAL GLAZE/THICK FILM |
| Temperature Coefficient | 200ppm/°C |
| Terminal Finish | MATTE TIN OVER NICKEL |
| Terminal Shape | WRAPAROUND |
| Tolerance | 5% |
| Working Voltage | 150V |
| 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
How much power can the RK73B2ATTD561J safely dissipate continuously, and what current does that allow at 560 Ω?
The RK73B2ATTD561J is rated for 0.25 W continuous power dissipation. At 560 Ω, this corresponds to a maximum safe current of approximately 21 mA (I = sqrt(P/R) = sqrt(0.25/560) ≈ 21 mA), suitable for LED current limiting, pull-up resistors on 3.3 V logic lines, and low-power sensor biasing applications.
What temperature coefficient does the RK73B2ATTD561J have, and how much does the resistance drift from 25°C to 85°C?
The resistor has a temperature coefficient of ±200 ppm/°C. From 25°C to 85°C—a span of 60°C—the maximum expected resistance drift is ±200 ppm/°C × 60°C = ±12,000 ppm, or ±1.2% of nominal 560 Ω (roughly ±6.7 Ω). This drift is acceptable for non-precision pull-up and current-limiting applications but should be budgeted in precision voltage dividers.
Is the 0805 package of the RK73B2ATTD561J compatible with standard pick-and-place assembly, and what are its physical dimensions?
The 0805 package measures 2.0 mm × 1.25 mm × 0.5 mm height, fully compatible with industry-standard SMT pick-and-place machines and IPC-7351 land patterns. KOA Speer offers the part in tape-and-reel format to enable uninterrupted high-volume automated assembly on 8 mm carrier tape at typical placements rates exceeding 10,000 components per hour.
When would a 560 Ω 0805 resistor be selected over a 470 Ω or 620 Ω alternative in an LED indicator circuit?
At a 3.3 V supply with a forward voltage of 2.0 V and desired LED current of 2.3 mA, Ohm's law gives R = (3.3 V − 2.0 V) / 2.3 mA ≈ 565 Ω, making the standard 560 Ω value the closest E24 choice. The 470 Ω would push current to 2.77 mA (slightly brighter but higher power), while 620 Ω drops current to 2.1 mA (dimmer). The 560 Ω RK73B2ATTD561J hits the design target most accurately.
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