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ROHM ESR10EZPJ User Guide and Manual

Summary

Discover these high-reliability, anti-surge chip resistors for demanding electronics applications. Optimized for superior performance during transient spikes, these 0805, 1/4W components feature robust ruthenium oxide dielectrics. The accompanying manual provides comprehensive specifications, including voltage calculations, detailed temperature ratings (-55°C to +155°C), rigorous test parameters (JIS standards), and essential guidelines for circuit integration. This guide is tailored for electronics engineers and designers needing highly dependable resistors exposed to challenging operational environments.

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ESR10

Resistors

Anti-surge Chip Resistors ESR10 (0805 size : 1 / 4W) Features 1) Power rating of 1 / 4W (MCR10 1/8W) 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 ISO9001- / ISO/TS 16949- 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 150V

Nominal resistance See Table 1. Operating temperature −55°C to +155°C

Rev.E 1/4

Page Summary Contents For ROHM ESR10EZPJ User Guide and Manual

Page 1 ESR10 Resistors Anti-surge Chip Resistors ESR10 (0805 size : 1 / 4W) Features 1) Power rating of 1 / 4W (MCR10 1/8W) 2) Superior anti surge to MCR series 3) Highly reliable chip resistor Ruthenium oxi...
Page 2 ESR10 Resistors Table 1 Resistance range Resistance temperature coefficient Resistance tolerance (Ω) (ppm/°C) (±0.5%) 10 to 1M (E24) ±100 F (±1%) (E24) ±1001 to 10M J (±5%) (E24) ±2001 to 10M Before u...
Page 3 ESR10 Resistors Dimensions (Unit : mm) No. Material Resistive element (Oxide metal thick film) 2.0±0.1 Silver thick film electrode Nickel electrode Sn electrode Alumina substrate 0. ±0 .1 Overcoating ...
Page 4 ESR10 Resistors Part designation Part No. Resistance tolerance Nominal resistance ±0.5%D Resistance code, 3 or 4 digits. ±1%F Resistance Resistance ±5% tolerance code 3 digits F,D 4 digits Packaging S...
Page 5 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject...

Manual Details

Brand ROHM
Pages 5
File Size 70.13 KB
Published July 10, 2026
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Frequently Asked Questions

Can I use this component in life-critical systems like medical devices?

Consult a sales representative if the equipment requires extreme reliability or if malfunction could directly endanger human life.

Do I need to derate the power at high ambient temperatures?

Yes, when the ambient temperature exceeds 70°C, the rated power must be derated using the specified power derating curve (Figure 1).

What precautions should be taken regarding voltage spikes or transients?

You must evaluate the component in its mounted state if exposed to transients (like pulse loads), as performance cannot be guaranteed otherwise.