ERA-3YED331Z Equivalent & Substitute Parts

Part Overview

The ERA-3YED331Z is a 330 Ohms ±0.5% metal film chip resistor rated at 0.1W (1/10W) in 0603 (1608 Metric) surface mount package, manufactured by Panasonic Electronic Components. This part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued system support and procurement.

Substiute Parts

ERA-3YED331Z

Panasonic Electronic ComponentsIn Stock: 1038ERA-3YED331Z Datasheet

Current PartRFQ

ERA-3AED331V

Panasonic Electronic ComponentsIn Stock: 161955ERA-3AED331V Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ERA-3YED331Z is determined by strict equivalence across the following critical parameters:

• Resistance Value: 330 Ohms (exact match required)
• Tolerance: ±0.5% (exact match required)
• Power Rating: 0.1W / 1/10W (exact match required)
• Package: 0603 (1608 Metric) (exact match required)
• Temperature Coefficient: ±25ppm/°C (exact match required)
• Operating Temperature Range: Minimum -55°C to 125°C (substitute must meet or exceed)
• RoHS Compliance: ROHS3 Compliant (required for regulatory continuity)

The ERA-3AED331V qualifies as a direct substitute based on full alignment with these parameters. While the substitute features thin film composition (versus metal film) and automotive AEC-Q200 qualification, these represent functional enhancements that do not compromise compatibility in applications originally specified for the ERA-3YED331Z.

Parameter Comparison

Engineering Selection Recommendations

The ERA-3AED331V is the qualified substitute for the obsolete ERA-3YED331Z. Selection is based on:

• Product Status: The substitute is active and in production, ensuring long-term availability and supply chain continuity.
• Electrical Equivalence: Identical resistance, tolerance, power rating, and temperature coefficient specifications ensure direct functional replacement.
• Regulatory Compliance: Both parts maintain ROHS3 compliance, satisfying environmental and regulatory requirements.
• Enhanced Operating Range: The substitute supports an extended upper operating temperature limit (-55°C ~ 155°C versus -55°C ~ 125°C), providing additional thermal margin for demanding applications.
• Automotive Qualification: AEC-Q200 certification of the substitute indicates enhanced reliability screening and is compatible with general-purpose applications.

Frequently Asked Questions (FAQ)

Q: Can ERA-3AED331V be used as a direct replacement for ERA-3YED331Z?

A: Yes. Both parts share identical electrical specifications (330 Ohms ±0.5%, 0.1W, ±25ppm/°C) and mechanical compatibility (0603 package). The substitute is active and available, making it the appropriate choice for obsolete part replacement.

Q: What is the difference between metal film and thin film composition?

A: Both compositions meet the specified tolerance (±0.5%) and temperature coefficient (±25ppm/°C) for this application. Thin film technology used in the ERA-3AED331V represents a manufacturing advancement that does not alter electrical performance in the specified operating conditions.

Q: Does the extended operating temperature range of ERA-3AED331V affect compatibility?

A: No. The extended range (-55°C ~ 155°C versus -55°C ~ 125°C) represents an enhancement. Applications designed for the original part's temperature range remain fully compatible.

Q: Are there packaging differences between the two parts?

A: Both parts use 0603 (1608 Metric) surface mount packaging with identical dimensions (0.063" L x 0.031" W, 1.60mm x 0.80mm) and height (0.022" maximum seated height). PCB footprints and assembly processes are identical.

Q: Is AEC-Q200 qualification required for my application?

A: AEC-Q200 is an automotive reliability standard. If your application does not require automotive qualification, the presence of this certification on the substitute part does not impose additional constraints and may provide enhanced reliability margins.