ROHM ESR25JZPJ Product Specification and User Guide
Summary
Discover the ESR25 series of high-reliability thick film chip resistors, engineered for demanding electrical applications. This comprehensive guide provides detailed technical specifications, covering operational ranges from -55°C to +155°C, critical performance ratings, and compliance details necessary for reliable circuit design. Ideal for engineers working on automotive electronics, power supplies, inverters, and display monitors requiring superior anti-surge capability and robust stability in varied environmental conditions.
Page 1 Text Content
ESR25
Resistors
Anti-surge thick film chip resistor ESR25 (1210 size : 1 / 2W) Features 1) Power rating of 1 /2W (MCR25 1/4W) 2) Superior anti surge to MCR series 3) Highly reliable chip resistor Ruthenium oxide dielectric offers superior resistance to the elements. 4) ROHM resistors have approved ISO–9001, ISO/TS 16949 certification. Design and specifications are subject to change without notice. Carefully check the specification sheet before using or ordering it. 5) This product is in compliance with the Ro HS directive.
Applications Automotive, LCD Monitor, projector, power supply, charger, inverter and so on.
Ratings 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 200V
Nominal resistance See Table 1.
Operating temperature −55°C to +155°C
Rev.A 1/4
Page Summary Contents For ROHM ESR25JZPJ Product Specification and User Guide
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 5 |
| File Size | 71.54 KB |
| Published | June 06, 2026 |
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Frequently Asked Questions
What is the resistor's full operating temperature range?
The component can operate within a temperature range of -55°C to +155°C.
If ambient temperatures exceed 70°C, do I need to adjust power usage?
Yes, the rated power must be derated according to the power derating curve provided in Figure 1.
How is the rated voltage calculated for this component?
The rating follows the equation: E = P × R (Rated Power multiplied by Nominal Resistance).