ERA-8ARB3161V Equivalent & Substitute Parts

Part Overview

The ERA-8ARB3161V is a 3.16 kOhms ±0.1% thin film chip resistor in 1206 (3216 Metric) package format, rated for 0.25W (1/4W) power dissipation. This component is designed for automotive applications and carries AEC-Q200 qualification. The part is currently in active production status with 2281 units available in stock. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and automotive compliance requirements are maintained across alternative manufacturer offerings or tolerance grades within the same product family.

Substiute Parts

ERA-8ARB3161V

Panasonic Electronic ComponentsIn Stock: 2323ERA-8ARB3161V Datasheet

Current PartRFQ

ERA-8ARW3161V

Panasonic Electronic ComponentsIn Stock: 1751ERA-8ARW3161V Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERA-8ARB3161V is determined by the following critical parameters:

• Resistance Value: Must be 3.16 kOhms
• Package Format: Must be 1206 (3216 Metric)
• Power Rating: Must be 0.25W (1/4W) minimum
• Composition: Must be Thin Film
• Automotive Compliance: Must maintain AEC-Q200 qualification
• Temperature Coefficient: Must be ±10ppm/°C or better
• Operating Temperature Range: Must support -55°C ~ 155°C
• RoHS & Environmental Compliance: Must maintain ROHS3 compliance and REACH unaffected status

The ERA-8ARW3161V qualifies as a direct substitute because it maintains all critical electrical parameters, mechanical compatibility, and automotive certifications. The tolerance specification difference (±0.05% versus ±0.1%) represents an upgrade in precision capability while maintaining full backward compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both ERA-8ARB3161V and ERA-8ARW3161V are active production components from Panasonic Electronic Components with full AEC-Q200 automotive qualification. Selection between these parts depends on application-specific tolerance requirements:

The ERA-8ARB3161V with ±0.1% tolerance is suitable for general automotive applications where standard precision thin film resistor performance meets circuit design specifications.

The ERA-8ARW3161V with ±0.05% tolerance provides enhanced precision and is applicable in circuits requiring tighter resistance value control. This part represents a direct upgrade path with identical mechanical, thermal, and compliance characteristics.

Both components maintain ROHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and identical thermal performance across the -55°C to 155°C operating range. Footprint compatibility is guaranteed for 1206 package format applications.

Frequently Asked Questions (FAQ)

Q: Can ERA-8ARW3161V replace ERA-8ARB3161V in existing designs?

A: Yes. The ERA-8ARW3161V is a direct substitute with identical resistance value, power rating, package format, and operating temperature range. The improved tolerance specification (±0.05% versus ±0.1%) provides enhanced precision without requiring circuit redesign.

Q: Are there any footprint differences between these parts?

A: No. Both components use the 1206 (3216 Metric) package format with identical dimensions: 0.126" L x 0.063" W (3.20mm x 1.60mm) and maximum seated height of 0.028" (0.70mm). PCB layout compatibility is complete.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both ERA-8ARB3161V and ERA-8ARW3161V carry AEC-Q200 qualification and are suitable for automotive applications across the -55°C to 155°C operating temperature range.

Q: What is the difference between ±0.1% and ±0.05% tolerance?

A: Tolerance specifies the maximum allowable deviation from the nominal 3.16 kOhms resistance value. The ±0.1% tolerance allows deviation up to ±3.16 ohms, while ±0.05% tolerance restricts deviation to ±1.58 ohms. The ±0.05% specification provides tighter resistance control for precision-critical applications.

Q: Are both parts RoHS compliant?

A: Yes. Both ERA-8ARB3161V and ERA-8ARW3161V are ROHS3 compliant with REACH unaffected status, meeting current environmental and regulatory requirements.

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

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or reflow processing.