ERA-14EB271U Equivalent & Substitute Parts

Part Overview

The ERA-14EB271U is a 270 Ohm ±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, making equivalent and substitute parts necessary for ongoing design support and procurement. The ERA-14 series represents a legacy product line, and active alternatives from current manufacturers provide functional equivalence with enhanced availability and extended product lifecycles.

Key Parameters

Parameter	Value
Resistance	270 Ohms
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 of the ERA-14EB271U is determined by the following critical parameters: resistance value (270 Ohms), tolerance (±0.1%), package format (1210), composition (thin film), and temperature coefficient (±25ppm/°C). The substitute parts are grouped into two categories based on power rating compatibility:

Category 1: Direct Power Rating Match (0.25W) Parts maintaining the original 0.25W power specification: ERA-8AEB271V (1206 package variant), RT1210BRD07270RL, and RT1210WRD07270RL. These provide pin-compatible or footprint-compatible alternatives with identical electrical performance within the specified operating temperature range.

Category 2: Upgraded Power Rating (0.333W - 0.5W) Parts with increased power dissipation capability: RNCF1210BKE270R, RNCF1210BTE270R, TNPW1210270RBEEA, TNPW1210270RBEEN, and TNPW1210270RBETA. These maintain all critical electrical parameters while providing enhanced thermal performance, suitable for applications requiring higher power margin or improved reliability.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Status	AEC-Q200
ERA-14EB271U	Panasonic	270Ω	±0.1%	0.25	1210	±25ppm/°C	-55~125°C	Obsolete	No
ERA-8AEB271V	Panasonic	270Ω	±0.1%	0.25	1206	±25ppm/°C	-55~155°C	Active	Yes
RNCF1210BKE270R	Stackpole	270Ω	±0.1%	0.333	1210	±25ppm/°C	-55~155°C	Active	Yes
RNCF1210BTE270R	Stackpole	270Ω	±0.1%	0.333	1210	±25ppm/°C	-55~155°C	Active	Yes
RT1210BRD07270RL	YAGEO	270Ω	±0.1%	0.25	1210	±25ppm/°C	-55~125°C	Active	No
RT1210WRD07270RL	YAGEO	270Ω	±0.05%	0.25	1210	±25ppm/°C	-55~125°C	Active	No
TNPW1210270RBEEA	Vishay Dale	270Ω	±0.1%	0.5	1210	±25ppm/°C	-55~155°C	Active	Yes
TNPW1210270RBEEN	Vishay Dale	270Ω	±0.1%	0.5	1210	±25ppm/°C	-55~155°C	Active	Yes
TNPW1210270RBETA	Vishay Dale	270Ω	±0.1%	0.333	1210	±25ppm/°C	-55~125°C	Active	No

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): RT1210BRD07270RL and RT1210WRD07270RL from YAGEO maintain the original 1210 package, 0.25W power rating, and ±25ppm/°C temperature coefficient. Both are active products with ROHS3 compliance. RT1210WRD07270RL offers tighter tolerance (±0.05%) for applications requiring enhanced precision.

For Package-Compatible Substitution: ERA-8AEB271V from Panasonic provides active product status with extended operating temperature range (-55°C to 155°C) and AEC-Q200 automotive qualification. The 1206 package footprint differs from the original 1210, requiring PCB layout verification for mechanical fit.

For Enhanced Reliability (Upgraded Power Rating): RNCF1210BKE270R and RNCF1210BTE270R from Stackpole Electronics maintain 1210 package compatibility with increased 0.333W power rating and AEC-Q200 qualification. TNPW1210270RBEEA and TNPW1210270RBEEN from Vishay Dale provide 0.5W power rating with anti-sulfur and moisture-resistant features, suitable for harsh environment applications.

For Military Applications: TNPW1210270RBETA offers military-grade thin film construction with 0.333W power rating, though RoHS non-compliance and REACH-affected status require compliance verification for specific applications.

Frequently Asked Questions (FAQ)

Q: Can ERA-8AEB271V replace ERA-14EB271U directly on the PCB? A: ERA-8AEB271V uses 1206 package (3216 Metric) versus the original 1210 package (3225 Metric). Physical dimensions differ: 1206 measures 0.126" L × 0.063" W while 1210 measures 0.126" L × 0.098" W. PCB footprint compatibility must be verified before substitution.

Q: What is the difference between RNCF1210BKE270R and RNCF1210BTE270R? A: Both parts are electrically and mechanically identical with 270Ω resistance, ±0.1% tolerance, 0.333W power rating, and 1210 package. The difference lies in packaging designation (K versus T suffix), which may indicate different tape reel configurations or manufacturing batches. Electrical performance is equivalent.

Q: Why do some substitutes have higher power ratings? A: Upgraded power ratings (0.333W and 0.5W) provide thermal margin and improved reliability in applications where the original 0.25W specification approaches maximum dissipation limits. Higher power-rated components maintain all electrical parameters while reducing operating stress.

Q: Are all substitute parts RoHS3 compliant? A: TNPW1210270RBETA is RoHS non-compliant. All other substitutes listed are ROHS3 compliant. Compliance verification is required for applications subject to RoHS regulations.

Q: Which substitutes carry AEC-Q200 automotive qualification? A: ERA-8AEB271V, RNCF1210BKE270R, RNCF1210BTE270R, TNPW1210270RBEEA, and TNPW1210270RBEEN carry AEC-Q200 qualification. RT1210BRD07270RL, RT1210WRD07270RL, and TNPW1210270RBETA do not carry this certification.

Q: Can RT1210WRD07270RL be used where ±0.1% tolerance is specified? A: RT1210WRD07270RL provides ±0.05% tolerance, which exceeds the ±0.1% specification of ERA-14EB271U. This tighter tolerance is backward-compatible and suitable for applications requiring higher precision.

Q: What is the operating temperature difference between substitutes? A: ERA-14EB271U and RT1210BRD07270RL operate to 125°C maximum. ERA-8AEB271V, RNCF series, and TNPW e3 series extend to 155°C. TNPW1210270RBETA operates to 125°C. Extended temperature range provides margin for high-temperature environments.

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