ROHM MCR01MZPFL User Guide
Summary
This datasheet covers the ROHM MCR01 series of low ohmic thick film chip resistors in 1005 (0402) size with a 1/16W power rating. The document details electrical specifications including a resistance range of 1.0 to 9.1 ohms (E24), resistance tolerance of ±1% (F grade), and a temperature coefficient of ±400 ppm/°C. Operating temperature spans -55°C to +155°C with power derating above 70°C. The ruthenium oxide dielectric construction provides high reliability and resistance to environmental eleme
Page 1 Text Content
Low Ohmic Thick Film Chip Resistors MCR01 (1005 size (0402 size) : 1 / 16W) Features 1) Power rating of 1 / 16W 2) Highly reliable chip resistor Ruthenium oxide dielectric offers superior resistance to the elements. 3) Electrodes not corroded by soldering Thick film makes the electrodes very strong. 4) ROHM resistors have approved ISO9001- / ISO/TS16949- certification.
Ratings Design and specifications are subject to change without notice. Carefully check the specification sheet before using or ordering it. Item Conditions Specifications
Rated power Power must be derated according to the power derating curve in
Figure 1 when ambient temperature exceeds 70°C. at 70°C
AMBIENT TEMPERATURE (°C)
Fig.1
Rated voltage The voltage rating is calculated by the following equation.
If the value obtained exceeds the limiting element voltage, the voltage rating is equal to the maximum operating voltage.
E: Rated voltage (V) E= P×R P: Rated power (W) R: Nominal resistance (Ω)
Limiting element voltage 0.76V (9.1Ω)
Nominal resistance See Table 1.
Operating temperature −55°C to + 155°C
Table 1
Special Resistance range Resistance temperature coefficient
Resistance tolerance
specification (Ω) (ppm/°C)
(±1%) 1.0 to 9.1 (E24) ±400
Before using components in circuits where they will be exposed to transients such as pulse loads (short–duration, high– level loads), be certain to evaluate the component in the mounted state. In addition, the reliability and performance of this component cannot be guaranteed if it is used with a steady state voltage that is greater than its rated voltage.
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1/3 2011.11 - Rev.D
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Page Summary Contents For ROHM MCR01MZPFL User Guide
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 4 |
| File Size | 159.09 KB |
| Published | June 22, 2026 |
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Frequently Asked Questions
How must I derate the power rating if the ambient temperature exceeds 70°C?
When ambient temperature exceeds 70°C, the power must be derated according to the power derating curve provided in Figure 1.
Can these resistors handle transient or pulse loads?
Before using components in circuits where they will be exposed to transients such as pulse loads, you must evaluate the component while mounted.
What are the specific soldering requirements for safe handling?
For solderability, use a condition of 235±5°C for 2.0±0.5s. For resistance checks (JIS C 5201-1), the condition is 260±5°C for 10±1s.
What are the general operating temperature limits?
The overall nominal operating temperature range for this component is from -55°C to +155°C.