RK73B2ATTD334J KOA Speer Resistor (Resistor Chip) In Stock
KOA Speer RK73B2ATTD334J is a thick-film surface-mount resistor in 0805 case with 330 kΩ resistance, ±5% tolerance, 0.25 W power rating, and ±200 ppm/°C temperature coefficient for general-purpose bias and pull-up applications.
- Manufacturer
- KOA Speer
- Package
- Resistor Chip
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- RK73B2ATTD334J 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
- 330 kΩ resistance in compact 0805 (2 mm × 1.25 mm) footprint for high-density PCB layouts
- ±5% tolerance suitable for general-purpose voltage divider and biasing networks
- 0.25 W power rating handles typical signal-level currents in consumer and industrial circuits
- RoHS-compliant and REACH-compliant construction supports green manufacturing requirements
Applications
The RK73B2ATTD334J is used in pull-up networks, voltage dividers, and current-limiting circuits across consumer electronics, industrial controls, and telecommunications equipment. Its 0805 package and 330 kΩ value make it straightforward to place in automated SMT assembly processes. The ±200 ppm/°C coefficient ensures stable resistance across the typical -55 °C to +155 °C operating temperature range.
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 | 330000Ω |
| 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
What power dissipation can the RK73B2ATTD334J handle continuously in a 330 kΩ pull-up network?
The RK73B2ATTD334J is rated for 0.25 W continuous power dissipation. In a 330 kΩ pull-up to 5 V, the maximum current is approximately 15 µA, producing only about 0.075 mW of dissipation — far below the 0.25 W limit. This leaves ample thermal headroom for elevated ambient temperatures up to 70 °C without derating.
How does the ±200 ppm/°C temperature coefficient of the RK73B2ATTD334J affect resistance drift over an industrial temperature range?
Over a -40 °C to +85 °C industrial temperature span — a 125 °C swing — the ±200 ppm/°C coefficient produces a maximum resistance change of ±2.5% on top of the initial ±5% tolerance. For precision voltage dividers requiring better than ±1% stability, a lower TCR resistor such as a 0.1% film type would be preferred, but for general biasing the RK73B2ATTD334J performs reliably.
Is the RK73B2ATTD334J in 0805 a suitable replacement for a through-hole 330 kΩ resistor in a board redesign?
Yes — the 0805 (2 mm × 1.25 mm) SMT package replaces through-hole 330 kΩ resistors while reducing board area by roughly 80% and enabling automated pick-and-place assembly. The RoHS-compliant, lead-free termination meets the same environmental standards as modern through-hole equivalents, making it a straightforward swap during a surface-mount redesign of legacy consumer or industrial PCBs.
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