ERG-2SJ222E Equivalent & Substitute Parts

Part Overview

The ERG-2SJ222E is a 2.2 kOhms ±5% 2W through-hole resistor manufactured by Panasonic Electronic Components. This axial metal oxide film resistor features flame retardant coating and safety characteristics, designed for applications requiring higher power dissipation in a compact form factor. The product is currently obsolete, necessitating identification of equivalent substitute components that maintain functional compatibility while meeting current availability and compliance requirements.

Substiute Parts

ERG-2SJ222E

Panasonic Electronic ComponentsIn Stock: 1131ERG-2SJ222E Datasheet

Current PartRFQ

RSF12JB2K20

Stackpole Electronics IncIn Stock: 996RSF12JB2K20 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ERG-2SJ222E is determined by the following critical parameters:

Electrical Compatibility:

• Resistance value: 2.2 kOhms
• Tolerance: ±5%
• Composition: Metal Oxide Film
• Operating temperature range: -55°C ~ 200°C

Mechanical Compatibility:

• Package type: Axial through-hole
• Number of terminations: 2

Power Rating Consideration: The ERG-2SJ222E is rated at 2W. Substitute parts with lower power ratings (such as 0.5W or 1/2W) are functionally equivalent only in applications where the actual power dissipation does not exceed the substitute's rating. The substitute RSF12JB2K20 operates at 0.5W, representing a reduced power capability that requires circuit-level verification for compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: RSF12JB2K20

The RSF12JB2K20 from Stackpole Electronics Inc is the designated substitute for the obsolete ERG-2SJ222E. Both components share identical electrical specifications for resistance value (2.2 kOhms) and tolerance (±5%), with matching metal oxide film composition and operating temperature range (-55°C ~ 200°C).

Compliance Status: The RSF12JB2K20 carries active product status with ROHS3 compliance and REACH unaffected designation, ensuring compliance with current regulatory requirements. The ERG-2SJ222E, being obsolete, lacks current compliance certifications.

Physical Compatibility: Both resistors utilize axial through-hole packaging with two terminations, enabling direct mechanical substitution in PCB layouts. The RSF12JB2K20 features a smaller physical footprint (3.20mm x 9.00mm versus 4.00mm x 12.00mm), which presents no compatibility issues for standard through-hole mounting.

Power Rating Differential: The RSF12JB2K20 operates at 0.5W compared to the ERG-2SJ222E's 2W rating. Selection of this substitute requires confirmation that actual circuit power dissipation across the 2.2 kOhm resistor does not exceed 0.5W. Applications with power dissipation between 0.5W and 2W require alternative higher-power rated substitutes.

Temperature Coefficient: The RSF12JB2K20 exhibits a superior temperature coefficient (±200ppm/°C) compared to the ERG-2SJ222E (±350ppm/°C), providing improved stability across the operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can the RSF12JB2K20 directly replace the ERG-2SJ222E in all applications?

A: Direct replacement is valid only when actual power dissipation in the circuit does not exceed 0.5W. The RSF12JB2K20 has a lower power rating (0.5W versus 2W). Applications requiring the full 2W capability require alternative substitutes with matching power ratings.

Q: Are the axial packages mechanically interchangeable?

A: Yes. Both the ERG-2SJ222E and RSF12JB2K20 use axial through-hole packaging with identical termination configuration (2 leads). The RSF12JB2K20's smaller physical dimensions do not prevent mechanical substitution in standard PCB layouts.

Q: What is the significance of the temperature coefficient difference?

A: The RSF12JB2K20's temperature coefficient of ±200ppm/°C is superior to the ERG-2SJ222E's ±350ppm/°C. This means the RSF12JB2K20 exhibits less resistance variation across temperature extremes, providing improved circuit stability in temperature-sensitive applications.

Q: Does the RSF12JB2K20 meet current regulatory requirements?

A: Yes. The RSF12JB2K20 is ROHS3 compliant and REACH unaffected, meeting current environmental and safety regulations. The obsolete ERG-2SJ222E does not carry current compliance certifications.

Q: What tolerance specifications apply to both resistors?

A: Both the ERG-2SJ222E and RSF12JB2K20 maintain ±5% tolerance on the 2.2 kOhm resistance value, ensuring equivalent electrical accuracy in circuit applications.

Q: Are there inventory considerations for the substitute part?

A: The RSF12JB2K20 is currently in active production with 913 pieces available in stock, compared to the ERG-2SJ222E's obsolete status with limited remaining inventory of 1066 pieces.