ERA-14EB273U Equivalent & Substitute Parts

Part Overview

The ERA-14EB273U is a 27 kOhm ±0.1% thin film chip resistor manufactured by Panasonic Electronic Components in 1210 (3225 Metric) package format with 0.25W power rating. This part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and production continuity. Substitute parts maintain the core electrical specifications while offering active product status and enhanced availability through alternative manufacturers.

Key Parameters

Parameter	Value
Resistance	27 kOhms
Tolerance	±0.1%
Power Rating	0.25W (1/4W)
Package	1210 (3225 Metric)
Composition	Thin Film
Temperature Coefficient	±25ppm/°C
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Compatibility Parameters:

Resistance value: 27 kOhms (exact match required)
Tolerance: ±0.1% (exact match required)
Package: 1210 (3225 Metric) (exact match required)
Composition: Thin Film (exact match required)
Temperature Coefficient: ±25ppm/°C (exact match required)

Secondary Compatibility Parameters (allowable variations):

Power rating: Equal to or greater than 0.25W
Operating temperature range: Equal to or exceeding -55°C ~ 125°C
Manufacturer: Different manufacturers acceptable
Product status: Active preferred over obsolete
Certifications: Additional certifications (AEC-Q200, Anti-Sulfur) acceptable

Excluded from substitution:

ERA-8AEB273V: Different package (1206 vs. 1210) and different dimensions disqualify this part despite matching electrical specifications.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	Status	RoHS
ERA-14EB273U	Panasonic	27 kΩ	±0.1%	0.25	1210	±25ppm/°C	-55°C ~ 125°C	Obsolete	ROHS3
RNCF1210BKE27K0	Stackpole	27 kΩ	±0.1%	0.333	1210	±25ppm/°C	-55°C ~ 155°C	Active	ROHS3
RNCF1210BTE27K0	Stackpole	27 kΩ	±0.1%	0.333	1210	±25ppm/°C	-55°C ~ 155°C	Active	ROHS3
RT1210BRD0727KL	YAGEO	27 kΩ	±0.1%	0.25	1210	±25ppm/°C	-55°C ~ 125°C	Active	ROHS3
RT1210WRD0727KL	YAGEO	27 kΩ	±0.05%	0.25	1210	±25ppm/°C	-55°C ~ 125°C	Active	ROHS3
TNPW121027K0BEEA	Vishay Dale	27 kΩ	±0.1%	0.5	1210	±25ppm/°C	-55°C ~ 155°C	Active	ROHS3
TNPW121027K0BEEN	Vishay Dale	27 kΩ	±0.1%	0.5	1210	±25ppm/°C	-55°C ~ 155°C	Active	ROHS3
TNPW121027K0BETA	Vishay Dale	27 kΩ	±0.1%	0.333	1210	±25ppm/°C	-55°C ~ 125°C	Active	Non-compliant

Engineering Selection Recommendations

Direct Equivalents (Identical Specifications): RT1210BRD0727KL (YAGEO) provides direct electrical and mechanical equivalence with active product status and ROHS3 compliance. This part maintains the original 0.25W power rating and -55°C ~ 125°C operating range while offering superior availability.

Enhanced Tolerance Alternative: RT1210WRD0727KL (YAGEO) offers tighter tolerance specification (±0.05% vs. ±0.1%) within the same 1210 package and power rating. This part is suitable for applications requiring improved precision without thermal or dimensional constraints.

Upgraded Power Rating Options: RNCF1210BKE27K0 and RNCF1210BTE27K0 (Stackpole Electronics) provide increased power dissipation (0.333W vs. 0.25W) with extended operating temperature range (-55°C ~ 155°C) and AEC-Q200 automotive certification. Both maintain ROHS3 compliance and active product status.

TNPW121027K0BEEA and TNPW121027K0BEEN (Vishay Dale) offer maximum power rating (0.5W) with extended temperature range and AEC-Q200 certification. These parts include anti-sulfur and moisture-resistant features with ROHS3 compliance.

Non-Recommended: TNPW121027K0BETA (Vishay Dale) does not meet ROHS3 compliance requirements and carries RoHS non-compliant status, disqualifying it for applications requiring regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can ERA-8AEB273V substitute for ERA-14EB273U? A: No. Although ERA-8AEB273V shares identical electrical specifications (27 kΩ, ±0.1%, thin film), it uses 1206 package (3216 Metric) instead of 1210 (3225 Metric). Package incompatibility prevents direct substitution due to different footprint dimensions and PCB layout requirements.

Q: What is the difference between RNCF1210BKE27K0 and RNCF1210BTE27K0? A: Both parts are electrically and mechanically identical with 27 kΩ resistance, ±0.1% tolerance, 0.333W power rating, and 1210 package. The difference lies in packaging format and supplier designation. Both are active products with AEC-Q200 certification and ROHS3 compliance.

Q: Is RT1210WRD0727KL a direct replacement? A: RT1210WRD0727KL is functionally compatible with improved tolerance specification (±0.05% vs. ±0.1%). It maintains identical package, power rating, and operating temperature range. The tighter tolerance makes it suitable for precision applications without introducing compatibility issues.

Q: Why do some substitutes have higher power ratings? A: Higher power ratings (0.333W or 0.5W vs. 0.25W) provide thermal margin and improved reliability in applications with elevated ambient temperatures or higher current densities. These parts are backward-compatible with designs requiring 0.25W minimum specification.

Q: Are Stackpole and Vishay Dale parts suitable for automotive applications? A: RNCF1210BKE27K0, RNCF1210BTE27K0, TNPW121027K0BEEA, and TNPW121027K0BEEN carry AEC-Q200 automotive certification. These parts meet automotive-grade reliability and environmental stress screening requirements. TNPW121027K0BETA lacks this certification.

Q: What does ROHS3 compliance mean for this component? A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. All recommended substitutes maintain ROHS3 compliance except TNPW121027K0BETA.

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