ERJ-8ENF3003V Equivalent & Substitute Parts

Part Overview

The ERJ-8ENF3003V is a 300 kOhms ±1% 0.25W chip resistor in 1206 (3216 Metric) package manufactured by Panasonic Electronic Components. This part is classified as "Not For New Designs," indicating it has been superseded in the product lifecycle. The ERJ-8EN series uses thick film composition with automotive AEC-Q200 qualification and operates across -55°C to 155°C. Finding equivalent substitute parts is necessary for applications requiring active production support, improved availability, or design flexibility while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	300 kOhms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the ERJ-8ENF3003V are qualified based on strict electrical and mechanical parameter matching:

Primary Substitution Criteria:

Resistance value: 300 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power rating: 0.25W / 1/4W (exact match required)
Package: 1206 (3216 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature coefficient: ±100ppm/°C (exact match required)
Operating temperature range: -55°C to 155°C (exact match required)

Secondary Compatibility Factors:

RoHS3 compliance (preferred for new designs)
Moisture Sensitivity Level 1 (unlimited shelf life)
Physical dimensions within tolerance (height variation acceptable within 0.002" to 0.006")

Substitutes are grouped into two categories: Active Status Parts (recommended for new designs) and Discontinued Parts (suitable for legacy system maintenance). All listed substitutes maintain full electrical equivalence and mechanical interchangeability with the main part.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Composition	Temp Coeff (ppm/°C)	Operating Temp (°C)	Product Status	RoHS Status	Height Max (mm)
ERJ-8ENF3003V	Panasonic	300k	±1%	0.25	1206	Thick Film	±100	-55 to 155	Not For New Designs	ROHS3	0.70
ERJ-S08F3003V	Panasonic	300k	±1%	0.25	1206	Thick Film	±100	-55 to 155	Active	ROHS3	0.70
CR1206-FX-3003ELF	Bourns Inc.	300k	±1%	0.25	1206	Thick Film	±100	-55 to 155	Active	ROHS3	0.75
CRCW1206300KFKEA	Vishay Dale	300k	±1%	0.25	1206	Thick Film	±100	-55 to 155	Active	ROHS3	0.60
CRCW1206300KFKEB	Vishay Dale	300k	±1%	0.25	1206	Thick Film	±100	-55 to 155	Active	ROHS3	0.60
CRCW1206300KFKTA	Vishay Dale	300k	±1%	0.25	1206	Thick Film	±100	-55 to 155	Active	RoHS non-compliant	0.60
CRG1206F300K	TE Connectivity	300k	±1%	0.25	1206	Thick Film	±100	-55 to 155	Active	ROHS3	0.65
KTR18EZPF3003	Rohm Semiconductor	300k	±1%	0.25	1206	Thick Film	±100	-55 to 155	Active	ROHS3	0.65
MCR18ERTF3003	Rohm Semiconductor	300k	±1%	0.25	1206	Thick Film	±100	-55 to 155	Discontinued	ROHS3	0.65
RC1206FR-07300KL	YAGEO	300k	±1%	0.25	1206	Thick Film	±100	-55 to 155	Active	ROHS3	0.65
RC3216F304CS	Samsung Electro-Mechanics	300k	±1%	0.25	1206	Thick Film	±100	-55 to 155	Active	ROHS3	0.65

Engineering Selection Recommendations

For New Designs (Active Status, ROHS3 Compliant):

ERJ-S08F3003V (Panasonic) is the direct upgrade path from the ERJ-8ENF3003V. Both are Panasonic products with identical electrical specifications and anti-sulfur protection in the ERJ-S08 series. This part maintains design continuity and supplier consistency.

CRCW1206300KFKEA and CRCW1206300KFKEB (Vishay Dale) offer the lowest profile height (0.60mm) among active substitutes, beneficial for space-constrained applications. Both carry AEC-Q200 automotive qualification and ROHS3 compliance.

KTR18EZPF3003 (Rohm Semiconductor) provides high-voltage capability alongside AEC-Q200 qualification, suitable for automotive and industrial applications requiring enhanced voltage performance.

CR1206-FX-3003ELF (Bourns Inc.), CRG1206F300K (TE Connectivity), RC1206FR-07300KL (YAGEO), and RC3216F304CS (Samsung Electro-Mechanics) are all active, ROHS3-compliant alternatives with established supply chains and full electrical equivalence.

For Legacy System Maintenance:

MCR18ERTF3003 (Rohm Semiconductor) is discontinued at DiGi Electronics but remains available through alternative channels. Use only when replacement stock of the original ERJ-8ENF3003V is unavailable.

Compliance Consideration:

CRCW1206300KFKTA (Vishay Dale) is RoHS non-compliant and REACH-affected. Avoid for new designs or applications subject to environmental regulations. Use only in legacy systems where compliance exemptions apply.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for ERJ-8ENF3003V?

A: Yes. All listed substitute parts match the critical electrical parameters (300 kOhms, ±1% tolerance, 0.25W power rating) and mechanical specifications (1206 package, thick film composition, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range). Physical height variations (0.60mm to 0.75mm) are within acceptable PCB assembly tolerances and do not affect electrical performance or mechanical fit.

Q: What is the difference between ERJ-8ENF3003V and ERJ-S08F3003V?

A: Both are Panasonic 300 kOhms ±1% 1206 resistors with identical electrical specifications. The ERJ-S08F3003V is the active product with anti-sulfur protection and represents the current production line. The ERJ-8ENF3003V is marked "Not For New Designs" and has been superseded. For new designs, specify ERJ-S08F3003V.

Q: Are there automotive-qualified alternatives?

A: Yes. ERJ-S08F3003V, CRCW1206300KFKEA, CRCW1206300KFKEB, and KTR18EZPF3003 all carry AEC-Q200 automotive qualification. These are suitable for automotive and high-reliability applications.

Q: Which substitute has the smallest physical height?

A: CRCW1206300KFKEA and CRCW1206300KFKEB (Vishay Dale) have the lowest maximum seated height of 0.60mm, compared to 0.70mm for the original ERJ-8ENF3003V. This may be advantageous in space-constrained designs.

Q: Are all substitutes RoHS3 compliant?

A: No. CRCW1206300KFKTA is RoHS non-compliant. All other listed substitutes are ROHS3 compliant. For applications subject to environmental regulations or customer RoHS requirements, avoid CRCW1206300KFKTA.

Q: Can I use MCR18ERTF3003 for new production?

A: MCR18ERTF3003 is discontinued at DiGi Electronics and should not be specified for new designs. Use only for legacy system repairs or when existing inventory must be maintained. For new production, select from active-status alternatives.

Q: What is the difference between moisture-resistant and standard thick film resistors?

A: CR1206-FX-3003ELF, RC1206FR-07300KL, and RC3216F304CS are explicitly rated as moisture-resistant. All listed parts carry Moisture Sensitivity Level 1 (unlimited shelf life), indicating robust moisture protection. The moisture-resistant designation reflects enhanced construction but does not affect electrical equivalence.

Q: Can I mix different manufacturers' parts in the same assembly?

A: Yes. All substitute parts are electrically and mechanically equivalent. Mixed sourcing is acceptable from a technical standpoint. However, consider supply chain consistency, lead times, and cost when selecting between manufacturers.

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