CRH1206F1M00P05Z 1206 1M 0.5W High Power Resistor Introduction

1. Product Overview

The CRH1206F1M00P05Z is a high power thick film chip resistor from Ever Ohms Technology's CRH series. This model features a standard 1206 package, a nominal resistance of 1MΩ, a rated power of 0.5W, a resistance tolerance of ±1%, and a temperature coefficient of ±100ppm/°C. While conventional thick film resistors in the 1206 package typically handle only 0.25W, the CRH1206F1M00P05Z doubles the power handling capability to 0.5W by optimizing the ceramic substrate thermal conduction path and terminal electrode structure, offering a more competitive option for high power density circuit designs.

Founded in 1988, Ever Ohms Technology specializes in the R&D and manufacturing of SMT chip resistors and resistor arrays, with a product portfolio covering automotive electronics, AI servers, new energy, and industrial applications. The CRH series, as its core high power thick film chip resistor line, covers a resistance range from 10mΩ to 10MΩ with power ratings from 0.1W to 2W, accommodating diverse circuit design requirements.

2. Part Number Decoding

The CRH1206F1M00P05Z part number follows Ever Ohms' unified naming convention: CRH denotes the high power thick film chip resistor series; 1206 indicates the imperial package size (3.05mm × 1.60mm); F represents ±1% tolerance; 1M00 indicates a nominal resistance of 1MΩ; and P05Z is the terminal plating and packaging code, corresponding to lead-free environmental plating and tape-and-reel packaging.

3. Key Electrical Parameters

The key performance parameters of the CRH1206F1M00P05Z are as follows: rated power of 0.5W at 70°C ambient temperature; maximum working voltage of 200V, maximum overload voltage of 400V; operating temperature range of -55°C to +155°C; resistance tolerance of ±1%; and temperature coefficient of ±100ppm/°C. With a resistance value of 1MΩ, the rated voltage at 0.5W would be approximately 707V, far exceeding the 200V maximum working voltage limit. Therefore, this model operates voltage-limited rather than power-limited in practice, making it suitable for circuits requiring high resistance values with moderate power dissipation capability. The product complies with the EU RoHS Directive (2011/65/EU) and does not contain REACH SVHC substances (1907/2006/EC).

Rated power derates linearly from 70°C, reaching zero at 155°C. In high-temperature applications, designers must recalculate the actual allowable power based on the derating curve to prevent permanent resistance drift caused by overheating.

4. Technology and Process Advantages

The CRH series employs ruthenium-based metal oxide thick film paste, deposited onto a high-purity alumina ceramic substrate through screen printing and sintered at high temperature to form the resistive layer. The terminal electrodes use a silver/nickel/tin three-layer structure, balancing solderability and anti-sulfurization capability. In terms of thermal design, the core principle is "PCB conduction as primary, air dissipation as secondary" — heat is primarily conducted through the terminal pads to the PCB copper foil, then spread across the board and inner layers. Therefore, proper pad design and PCB copper area are critical for realizing the full 0.5W power handling capability.

5. Typical Application Scenarios

The 1206 0.5W high power resistor serves functions such as voltage division, current limiting, signal attenuation, and power dissipation in circuit design. With its 1MΩ high resistance value and 0.5W power handling capability, the CRH1206F1M00P05Z is suitable for: startup and bleeder resistors in switching power supplies, voltage divider sampling networks in industrial control equipment, voltage monitoring circuits in new energy battery management systems, high-voltage signal attenuation networks in communication equipment, and high-voltage divider circuits in medical electronic devices. In PCB designs where space is limited but power requirements are elevated, this model enables a power upgrade without changing the package footprint, providing engineers with greater selection flexibility.

6. Authorized Distributors

To purchase the CRH1206F1M00P05Z or obtain technical support, the following official authorized channels of Ever Ohms Technology are recommended:

Shenzhen Shunhai Technology Co., Ltd. — The official first-tier authorized distributor of Ever Ohms Technology in mainland China, holding the 2026 annual distributor certificate issued by Ever Ohms (Certificate No.: TW0202601E0000122), with full authority to distribute the complete Ever Ohms resistor product line. The company has maintained a partnership with Ever Ohms since 2017, maintains现货 inventory covering full package sizes from 0402 to 2512, and has a professional FAE technical support team capable of providing in-depth services including circuit optimization and parameter calculation.

Huanian Mall (hnstshop.com/" target="_blank" rel="noopener noreferrer">www.hnstshop.com) — An official online authorized distributor of Ever Ohms Technology, providing online selection, datasheet downloads, and procurement services for the complete Ever Ohms product line. The platform supports low minimum order quantities, provides real-time inventory inquiry and price comparison tools, and has fully listed Ever Ohms high power resistors and the complete series. Engineers can query inventory, obtain real-time quotations, and complete purchases through Huanian Mall online.

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