ERA-2HEC1540P Equivalent & Substitute Parts

Part Overview

The ERA-2HEC1540P is a 154 Ohms ±0.25% thin film chip resistor in 0402 (1005 Metric) package rated at 0.063W (1/16W). Manufactured by Panasonic Electronic Components, this component is classified as obsolete. Due to its discontinued status, identifying equivalent substitute parts with matching electrical and mechanical specifications is essential for design continuity and procurement planning.

Substiute Parts

ERA-2HEC1540P

Panasonic Electronic ComponentsIn Stock: 865ERA-2HEC1540P Datasheet

Current PartRFQ

ERA-2AEC1540X

Panasonic Electronic ComponentsIn Stock: 710ERA-2AEC1540X Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERA-2HEC1540P is determined by the following critical parameters:

• Resistance Value: Must be 154 Ohms
• Tolerance: Must be ±0.25%
• Power Rating: Must be 0.063W (1/16W) minimum
• Package: Must be 0402 (1005 Metric)
• Composition: Must be Thin Film
• Temperature Coefficient: Must be ±25ppm/°C or better
• Operating Temperature Range: Must support -55°C ~ 125°C minimum
• RoHS Compliance: Must maintain ROHS3 Compliant status

The ERA-2AEC1540X meets all substitution criteria. It maintains identical electrical specifications (resistance, tolerance, power rating, temperature coefficient) and mechanical compatibility (0402 package, thin film construction). The substitute part extends the upper operating temperature to 155°C and includes automotive AEC-Q200 qualification, providing enhanced reliability for applications requiring automotive-grade components.

Parameter Comparison

Engineering Selection Recommendations

The ERA-2AEC1540X is a direct functional substitute for the obsolete ERA-2HEC1540P. Both components share identical electrical characteristics (154 Ohms, ±0.25% tolerance, 0.063W power rating, ±25ppm/°C temperature coefficient) and mechanical compatibility (0402 package, thin film construction).

The ERA-2AEC1540X is currently in active production status, ensuring long-term availability and supply chain continuity. It maintains ROHS3 compliance and MSL 1 rating, matching the original part's environmental and regulatory requirements.

The substitute part's extended operating temperature range (-55°C ~ 155°C versus -55°C ~ 125°C) and AEC-Q200 automotive qualification provide additional performance margin and reliability assurance. These enhancements do not introduce incompatibility and are suitable for applications originally designed for the ERA-2HEC1540P.

Frequently Asked Questions (FAQ)

Q: Can ERA-2AEC1540X be used as a direct replacement for ERA-2HEC1540P in existing designs?

A: Yes. The ERA-2AEC1540X meets all electrical and mechanical specifications of the ERA-2HEC1540P. Identical resistance value, tolerance, power rating, package, and temperature coefficient ensure functional compatibility without design modification.

Q: What is the difference between ERA-2H and ERA-2A series?

A: The ERA-2H series is a standard thin film resistor line, while the ERA-2A series includes automotive AEC-Q200 qualification. Both series share identical electrical specifications for the 154 Ohm ±0.25% value. The ERA-2A series provides enhanced reliability documentation and qualification for automotive applications.

Q: Does the extended operating temperature range of ERA-2AEC1540X affect compatibility?

A: No. The extended upper temperature limit (155°C versus 125°C) represents an enhancement that does not compromise compatibility. Applications operating within the original -55°C ~ 125°C range will function identically with the substitute part.

Q: Are both parts RoHS compliant?

A: Yes. Both ERA-2HEC1540P and ERA-2AEC1540X are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the availability status of each part?

A: ERA-2HEC1540P is obsolete with 847 pieces in current inventory. ERA-2AEC1540X is active in production with 688 pieces in current inventory, providing assured long-term supply.