MC0125W1206139K MULTICOMP Resistor (Resistor Chip) In Stock
The MULTICOMP MC0125W1206139K is a 39 kΩ thick-film surface-mount resistor with 1% tolerance and 0.125 W power rating in a 1206 (3.1 × 1.55 mm) SMD package. It is supplied on tape and reel for automated SMT assembly in consumer, industrial, and commercial electronics. Available from stock worldwide with fast shipping.
- Manufacturer
- MULTICOMP
- Package
- Resistor Chip
- Pin Count
- 2
- Lifecycle
- OBSOLETE
- Datasheet
- MC0125W1206139K 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
What are the key features of MC0125W1206139K?
- 39 kΩ resistance with 1% tolerance ensures accurate voltage divider ratios and bias networks in precision analog circuits
- 0.125 W power rating handles signal-level dissipation in compact 1206 surface-mount designs up to approximately 70 V
- Tape-and-reel packaging supports high-volume automated pick-and-place SMT assembly with consistent component orientation
What is MC0125W1206139K used for?
The MC0125W1206139K is used in voltage dividers, pull-up and pull-down networks, and bias resistor circuits across consumer electronics, industrial controls, and automotive designs. Its 1% tolerance suits precision signal-conditioning and analog front-end applications where resistor accuracy directly impacts measurement quality. The 1206 package is easy to rework by hand and accommodates moderate power dissipation at 0.125 W.
What are the specifications of MC0125W1206139K?
| Reach Compliance Code | Unknown |
| YTEOL | 0 |
| Construction | Rectangular |
| JESD-609 Code | e3 |
| Mounting Feature | SURFACE MOUNT |
| Package Height | 0.55mm |
| Package Length | 3.1mm |
| Package Style | SMT |
| Package Width | 1.55mm |
| Packing Method | TR |
| Rated Power Dissipation (P) | 0.125W |
| Rated Temperature | 70°C |
| Resistance | 39000Ω |
| Resistor Type | FIXED RESISTOR |
| Size Code | 1206 |
| Surface Mount | YES |
| Technology | METAL GLAZE/THICK FILM |
| Temperature Coefficient | 100ppm/°C |
| Terminal Finish | Tin (Sn) - with Nickel (Ni) barrier |
| Terminal Shape | WRAPAROUND |
| Tolerance | 1% |
| Working Voltage | 200V |
| Package | Resistor Chip |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8533.21.00.30 |
Where can I find the MC0125W1206139K datasheet?
MC0125W1206139K Datasheet DownloadOfficial datasheet from MULTICOMP
What are equivalent replacements for MC0125W1206139K?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the 1% tolerance of the MC0125W1206139K affect output error in a precision voltage divider?
With 1% tolerance on each 39 kΩ resistor, the worst-case voltage-divider ratio error is approximately ±2% when two units are paired, which suits most ADC reference and signal-conditioning circuits. This is meaningfully more accurate than 5% thick-film alternatives and achieves the required precision without the cost of 0.1% tolerance components.
What maximum continuous voltage can the MC0125W1206139K handle based on its power and resistance ratings?
Applying P = V²/R with 0.125 W and 39 kΩ gives a maximum continuous voltage of approximately 70 V across the MC0125W1206139K. This comfortably exceeds common 5 V, 12 V, and 48 V supply rails, making it suitable for pull-up, bias, and voltage-sensing applications without derating.
When would an engineer prefer the 1206 package of the MC0125W1206139K over smaller 0402 or 0603 alternatives?
The 1206 package (3.1 × 1.55 mm) is considerably larger than 0402 (1.0 × 0.5 mm) or 0603 (1.6 × 0.8 mm) sizes, making it much easier to hand-solder and rework during prototyping or low-volume builds. It also dissipates 0.125 W reliably and is less prone to tombstoning defects during reflow, improving first-pass yield in mixed-assembly production.
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About MULTICOMP
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