SMD_REST_022R00_0603_001

This is a 22 Ohm surface-mount chip resistor in the compact and widely used 0603 package. It is a fundamental component for controlling current flow and shaping signals in modern, densely packed electronic circuits.

Detailed Decoding

Using your correct interpretation:

• SMD: Surface-Mount Device. Confirms the assembly method.
• REST: Resistor. The component family.
• 022R00: This is the critical resistance value code.
  • The R here acts as a decimal point.
  • 022R00 literally reads as "022.00".
  • Therefore, the resistance is 22.00 Ohms (Ω). This is a low-value resistor.
• 0603: The package footprint.
  • Imperial: 0.06 inches long x 0.03 inches wide (60 mils x 30 mils).
  • Metric: 1.6 mm x 0.8 mm (often called 1608).
• 001: Manufacturer's internal code. This typically defines the specific series, which dictates the exact tolerance, power rating, temperature coefficient, and construction (e.g., general purpose, thick film, automotive grade).

Expanded Technical Specifications (Informed by Industry Standards)

Your table is a great start. For a complete picture, here are the typical specifications associated with a 0603 resistor of this value:

Feature

Specification / Typical Value

Notes

Component Type

Surface Mount Resistor (SMD/Chip Resistor)

Resistance (R)

22 Ω

A low-resistance value.

Package Size

0603 (1608 Metric)

One of the most common sizes, balancing size and ease of manufacturing.

Tolerance

±1% (common) or ±5%

The "001" suffix likely points to a ±1% (F) or even ±0.5% (D) tolerance series. Must be confirmed via datasheet.

Power Rating (P)

0.1W (1/10 Watt) Standard

This is the JEDEC standard rating for 0603 resistors. Some "enhanced" 0603 series can be rated for 0.125W or 0.15W.

Construction

Thick Film Ceramic (most common)

Thin film versions are available for higher precision.

Temperature Coefficient (TCR)

Often ±100 ppm/°C or ±200 ppm/°C

Defines how much the resistance drifts with temperature. A tighter TCR (e.g., ±50 ppm/°C) indicates a higher-precision part.

Operating Temp.

Typically -55°C to +155°C

Standard range for commercial/components.

Primary Applications

A 22Ω resistor is frequently used in circuits where small resistance is needed to limit current without creating a large voltage drop:

1. USB Data Line Termination: Used as a series resistor on D+ and D- lines for impedance matching and signal integrity.
2. LED Current Limiting: For lower-power LEDs, often in parallel arrays or with a driver IC.
3. General Current Limiting: Protecting GPIO pins on microcontrollers or other ICs from overcurrent.
4. In-Rush Current Limiting: Placed in series with power supply inputs to dampen the initial surge when a circuit is powered on.
5. Low-Value Pull-Up/Down: In high-speed or specific logic interfaces.

Sourcing & Manufacturing Context

• Generic Code: Like the previous example, SMD_REST_022R00_0603_001 is a descriptive generic code, not a specific manufacturer's part number (MPN).
• Equivalent MPNs: To source this, you would look for manufacturer parts like:
  • RC0603FR-0722RL (Yageo, 22Ω, ±1%, 0.1W)
  • ERJ-3GEYJ220V (Panasonic, 22Ω, ±5%, 0.1W)
  • CRCW060322R0FKEA (Vishay/Dale, 22Ω, ±1%, 0.1W)
• The "001" Suffix: When you find the actual manufacturer's datasheet for the series indicated by "001", you will get the definitive specifications for tolerance, power rating, TCR, and reliability testing.

Summary

The SMD_REST_022R00_0603_001 is a standard, low-ohm, 0603 chip resistor essential for signal conditioning, current management, and termination in compact electronic designs. Your accurate decoding of 022R00 is the key to understanding its 22-ohm value. For practical use, this generic code must be linked to a specific manufacturer's part number to access all guaranteed performance parameters.