ERA-14EB221U Equivalent & Substitute Parts

Part Overview

The ERA-14EB221U is a 220 Ohms ±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	220 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 eligibility is determined by the following critical parameters: resistance value, tolerance grade, package format, and composition type. All listed substitutes maintain 220 Ohms resistance with ±0.1% tolerance and thin film construction. Package compatibility is categorized as follows:

Same Package (1210): Parts maintaining identical 1210 (3225 Metric) package dimensions are direct mechanical and electrical substitutes. These include RNCF1210BKE220R, RNCF1210BTE220R, RT1210BRD07220RL, RT1210WRD07220RL, TNPW1210220RBEEA, TNPW1210220RBEEN, and TNPW1210220RBETA.

Reduced Package (1206): ERA-8AEB221V uses 1206 (3216 Metric) package, which is physically smaller. This substitute is functionally equivalent but requires PCB layout verification due to dimensional differences.

Power Rating Variations: Substitutes with higher power ratings (0.333W or 0.5W) are upgrades that provide enhanced thermal performance while maintaining electrical specifications. Lower power ratings are not acceptable substitutes.

Temperature Range Considerations: Substitutes with extended operating temperature ranges (-55°C ~ 155°C) provide broader environmental capability compared to the original specification (-55°C ~ 125°C).

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Status
ERA-14EB221U	Panasonic	220Ω	±0.1%	0.25	1210	±25ppm/°C	-55°C ~ 125°C	Obsolete
ERA-8AEB221V	Panasonic	220Ω	±0.1%	0.25	1206	±25ppm/°C	-55°C ~ 155°C	Active
RNCF1210BKE220R	Stackpole	220Ω	±0.1%	0.333	1210	±25ppm/°C	-55°C ~ 155°C	Active
RNCF1210BTE220R	Stackpole	220Ω	±0.1%	0.333	1210	±25ppm/°C	-55°C ~ 155°C	Active
RT1210BRD07220RL	YAGEO	220Ω	±0.1%	0.25	1210	±25ppm/°C	-55°C ~ 125°C	Active
RT1210WRD07220RL	YAGEO	220Ω	±0.05%	0.25	1210	±25ppm/°C	-55°C ~ 125°C	Active
TNPW1210220RBEEA	Vishay Dale	220Ω	±0.1%	0.5	1210	±25ppm/°C	-55°C ~ 155°C	Active
TNPW1210220RBEEN	Vishay Dale	220Ω	±0.1%	0.5	1210	±25ppm/°C	-55°C ~ 155°C	Active
TNPW1210220RBETA	Vishay Dale	220Ω	±0.1%	0.333	1210	±25ppm/°C	-55°C ~ 125°C	Active

Engineering Selection Recommendations

Primary Substitutes (Same Package, Same Power Rating): RT1210BRD07220RL from YAGEO provides direct electrical and mechanical equivalence with active product status and ROHS3 compliance. This part maintains identical 1210 package dimensions and 0.25W power rating while offering superior long-term availability.

Enhanced Tolerance Option: RT1210WRD07220RL offers ±0.05% tolerance, providing tighter resistance accuracy than the original ±0.1% specification. This upgrade is suitable for applications requiring improved precision without changing package or power characteristics.

Higher Power Alternatives: RNCF1210BKE220R, RNCF1210BTE220R, TNPW1210220RBEEA, and TNPW1210220RBEEN provide 0.333W or 0.5W power ratings in 1210 package. These upgrades deliver enhanced thermal performance and extended operating temperature ranges (-55°C ~ 155°C). Selection depends on thermal design requirements and available PCB space.

Military-Grade Option: TNPW1210220RBETA is designated for military applications with 0.333W power rating. Note that this part carries RoHS non-compliant and REACH Affected status, requiring compliance verification before use in regulated applications.

Reduced Package Alternative: ERA-8AEB221V maintains Panasonic manufacturing continuity with active status and AEC-Q200 automotive qualification. The 1206 package is physically smaller and requires PCB layout modification. This option is suitable only when space constraints permit package downsizing.

Frequently Asked Questions (FAQ)

Q: Can ERA-8AEB221V replace ERA-14EB221U directly on the PCB?

A: ERA-8AEB221V uses 1206 package versus the original 1210 package. Physical dimensions differ: 1206 measures 0.126" L x 0.063" W while 1210 measures 0.126" L x 0.098" W. Direct PCB substitution is not possible without layout modification. Verify footprint compatibility before selection.

Q: What is the difference between RNCF1210BKE220R and RNCF1210BTE220R?

A: Both parts are electrically and mechanically identical with 220Ω ±0.1% resistance, 0.333W power rating, 1210 package, and AEC-Q200 automotive qualification. The difference lies in packaging format: BKE uses standard Tape & Reel while BTE also uses Tape & Reel. Consult supplier documentation for specific packaging configuration details.

Q: Why do some substitutes have higher power ratings?

A: Higher power ratings (0.333W or 0.5W) represent thermal upgrades that improve heat dissipation capability. These parts maintain identical electrical specifications while providing enhanced reliability in thermally demanding applications. Higher power ratings are always acceptable substitutes for lower power requirements.

Q: Is RT1210WRD07220RL compatible with designs requiring ±0.1% tolerance?

A: Yes. RT1210WRD07220RL provides ±0.05% tolerance, which is tighter than the ±0.1% requirement. Tighter tolerance specifications are always acceptable substitutes for looser tolerance requirements.

Q: What compliance certifications apply to these substitutes?

A: All substitutes except TNPW1210220RBETA are ROHS3 compliant and REACH unaffected. TNPW1210220RBETA is RoHS non-compliant and REACH affected, requiring compliance verification for regulated applications. RNCF and TNPW e3 series carry AEC-Q200 automotive qualification where specified.

Q: Can I use TNPW1210220RBEEA or TNPW1210220RBEEN in place of ERA-14EB221U?

A: Yes. Both parts provide 220Ω ±0.1% resistance in 1210 package with enhanced 0.5W power rating and extended operating temperature range (-55°C ~ 155°C). The anti-sulfur and moisture-resistant features provide additional environmental protection. These are suitable upgrades for the obsolete ERA-14EB221U.

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