ERA-8ARB3481V Equivalent & Substitute Parts

Part Overview

The ERA-8ARB3481V is a 3.48 kOhms ±0.1% thin film chip resistor in 1206 (3216 Metric) package manufactured by Panasonic Electronic Components. This component is rated for automotive applications under AEC-Q200 standard with 0.25W power rating and operates across -55°C to 155°C temperature range. The part is currently active in production with 5125 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained while potentially offering improved tolerance specifications or alternative sourcing options.

Substiute Parts

ERA-8ARB3481V

Panasonic Electronic ComponentsIn Stock: 5170ERA-8ARB3481V Datasheet

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ERA-8ARW3481V

Panasonic Electronic ComponentsIn Stock: 1140ERA-8ARW3481V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERA-8ARB3481V is determined by the following critical parameters:

• Resistance Value: Must be 3.48 kOhms (exact match required)
• Package Type: Must be 1206 (3216 Metric) for mechanical and thermal compatibility
• Power Rating: Must be 0.25W minimum to support circuit requirements
• Composition: Thin film construction required for temperature coefficient performance
• Automotive Compliance: AEC-Q200 rating mandatory for automotive applications
• Operating Temperature Range: Must support -55°C to 155°C minimum
• Termination Count: Must be 2-terminal configuration

The ERA-8ARW3481V qualifies as a substitute because it maintains all critical parameters while offering improved tolerance specification (±0.05% versus ±0.1%), providing enhanced precision for applications requiring tighter resistance control.

Parameter Comparison

Engineering Selection Recommendations

Both ERA-8ARB3481V and ERA-8ARW3481V are active production components from Panasonic Electronic Components with full AEC-Q200 automotive compliance and ROHS3 certification. Selection between these parts depends on tolerance requirements:

• ERA-8ARB3481V: Suitable for applications where ±0.1% tolerance meets circuit specifications and cost optimization is prioritized
• ERA-8ARW3481V: Appropriate for precision circuits requiring ±0.05% tolerance and tighter resistance control

Both parts maintain identical mechanical footprint, thermal characteristics, and environmental ratings, ensuring direct substitution capability at the PCB assembly level.

Frequently Asked Questions (FAQ)

Q: Can ERA-8ARW3481V replace ERA-8ARB3481V in existing designs?

A: Yes. The ERA-8ARW3481V is mechanically and electrically compatible. It features identical package dimensions (1206), power rating (0.25W), operating temperature range (-55°C to 155°C), and AEC-Q200 automotive certification. The improved tolerance (±0.05% versus ±0.1%) provides enhanced precision without requiring circuit redesign.

Q: What is the primary difference between these two parts?

A: The tolerance specification differs. ERA-8ARB3481V provides ±0.1% tolerance, while ERA-8ARW3481V provides ±0.05% tolerance. Both maintain identical resistance value (3.48 kOhms), temperature coefficient (±10ppm/°C), and all other electrical and mechanical parameters.

Q: Are both parts suitable for automotive applications?

A: Yes. Both ERA-8ARB3481V and ERA-8ARW3481V carry AEC-Q200 automotive qualification and are rated for -55°C to 155°C operating temperature range, meeting automotive reliability standards.

Q: Do these parts require different PCB footprints?

A: No. Both parts use identical 1206 (3216 Metric) package with matching dimensions (0.126" L x 0.063" W / 3.20mm x 1.60mm) and height (0.028" / 0.70mm maximum seated height). PCB layout and assembly processes remain unchanged.

Q: What is the moisture sensitivity level for these components?

A: Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.