RK73B1ETTP100J KOA Speer Resistor (Resistor Chip) In Stock
RK73B1ETTP100J is a thick film chip resistor by KOA Speer rated at 10 Ω, 1/16 W, 5% tolerance. Key specs: 0402 package (1.0 × 0.5 mm), -55 °C to +155 °C operating range, RoHS and REACH compliant. Ideal for current sensing, pull-down networks, and signal conditioning in SMT PCB designs.
- Manufacturer
- KOA Speer
- Package
- Resistor Chip
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- RK73B1ETTP100J 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
- 10 Ω resistance in 0402 package for space-efficient current-limiting and pull-down network designs
- 1/16 W rated thick film element with 5% tolerance covering typical signal-level power dissipation requirements
- RoHS and REACH compliant with wide -55 °C to +155 °C temperature range for industrial and consumer use
Applications
The RK73B1ETTP100J is used as a low-value pull-down resistor, LED current limiter, and signal-path damping resistor in smartphones, IoT sensors, and industrial control boards. Its 0402 form factor and 10 Ω value support fast rise-time termination on 3.3 V and 5 V digital signal lines in high-density PCB designs.
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 | 10Ω |
| 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 resistance and power rating does the KOA Speer RK73B1ETTP100J deliver in the 0402 package?
The RK73B1ETTP100J provides 10 Ω resistance at 1/16 W (62.5 mW) maximum power dissipation within the 1.0 × 0.5 mm 0402 footprint, offering a compact solution for signal biasing and pull-down resistor networks in low-power PCB designs.
How does the -55 °C to +155 °C rating make RK73B1ETTP100J suitable for automotive or outdoor equipment?
Operating across -55 °C to +155 °C, the RK73B1ETTP100J maintains resistance within 5% tolerance through the wide thermal excursions experienced in automotive engine bays, outdoor IoT enclosures, and industrial machinery control boards.
When would a designer choose the 10 Ω RK73B1ETTP100J over a higher-value pull-down resistor in a digital circuit?
A 10 Ω value is preferred when terminating high-speed digital lines at 50 Ω or 100 Ω impedance through a resistor divider, or for limiting inrush current below 330 mA on a 3.3 V rail, where higher resistance would degrade signal integrity or slow edge transitions.
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