ERJ-S08F38R3V Equivalent & Substitute Parts

Part Overview

The ERJ-S08F38R3V is a 38.3 Ohm ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Panasonic Electronic Components. This part is classified as Active product status and features anti-sulfur coating with automotive AEC-Q200 qualification. Substitute parts are necessary when the primary part becomes unavailable, when design requirements shift to alternative manufacturers, or when inventory constraints require sourcing from multiple suppliers while maintaining equivalent electrical and mechanical performance.

Key Parameters

Parameter	Value
Resistance	38.3 Ohms
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 ~ 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S08F38R3V is determined by strict equivalence across the following parameters:

Resistance value: 38.3 Ohms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Package: 1206 (3216 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
RoHS compliance: ROHS3 Compliant
Moisture sensitivity: MSL 1 (Unlimited)

All substitute parts listed meet these core electrical and mechanical specifications. Variations in physical dimensions (length, width, height) within the 1206 package tolerance, feature sets (anti-sulfur vs. moisture resistant), and product status do not affect functional interchangeability in circuit applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	Product Status	RoHS	MSL
ERJ-S08F38R3V	Panasonic Electronic Components	38.3 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3	1
ERJ-8ENF38R3V	Panasonic Electronic Components	38.3 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Not For New Designs	ROHS3	1
CRCW120638R3FKEA	Vishay Dale	38.3 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3	1
RC1206FR-0738R3L	YAGEO	38.3 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3	1
RMCF1206FT38R3	Stackpole Electronics Inc	38.3 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Active	ROHS3	1

Engineering Selection Recommendations

All listed substitute parts are electrically and mechanically equivalent to the ERJ-S08F38R3V. Selection among these alternatives should be based on the following criteria:

Active Product Status: CRCW120638R3FKEA (Vishay Dale), RC1206FR-0738R3L (YAGEO), and RMCF1206FT38R3 (Stackpole Electronics Inc) are designated as Active products and are suitable for new designs. The ERJ-S08F38R3V (Panasonic) is also Active.

Discontinued or Legacy Status: ERJ-8ENF38R3V (Panasonic) is marked as Not For New Designs and should be used only for replacement or repair of existing assemblies where design continuity is required.

Compliance and Certifications: All parts are ROHS3 compliant and carry MSL 1 rating. The ERJ-S08F38R3V and RMCF1206FT38R3 include automotive AEC-Q200 qualification. RC1206FR-0738R3L features moisture-resistant construction. These certifications do not affect interchangeability but may be relevant to specific application requirements.

Inventory and Availability: Selection may also consider supplier inventory levels and lead times based on procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can ERJ-8ENF38R3V be used as a direct replacement for ERJ-S08F38R3V?

A: Yes, ERJ-8ENF38R3V is electrically and mechanically equivalent. However, ERJ-8ENF38R3V is marked as Not For New Designs. Use this part only for repair or replacement of existing assemblies. For new designs, select from Active status alternatives.

Q: What is the difference between anti-sulfur and moisture-resistant features?

A: Anti-sulfur coating (ERJ-S08F38R3V, RMCF1206FT38R3) protects against sulfur contamination in certain environments. Moisture-resistant construction (RC1206FR-0738R3L) provides protection against moisture ingress. Both are thick film resistors with equivalent electrical performance. Feature selection depends on environmental exposure conditions.

Q: Are there physical dimension differences between substitute parts?

A: All parts conform to the 1206 (3216 Metric) package standard. Minor variations exist within tolerance: length ranges from 0.122" to 0.126" (3.10mm to 3.20mm), width is 0.063" (1.60mm), and height ranges from 0.024" to 0.028" (0.60mm to 0.70mm). These variations are within standard PCB footprint tolerances and do not affect assembly or performance.

Q: Do all substitute parts meet automotive qualification requirements?

A: ERJ-S08F38R3V, ERJ-8ENF38R3V, CRCW120638R3FKEA, and RMCF1206FT38R3 carry AEC-Q200 automotive qualification. RC1206FR-0738R3L does not list AEC-Q200 rating. For automotive applications requiring AEC-Q200 compliance, select from the qualified alternatives.

Q: What is MSL 1 and why does it matter?

A: MSL (Moisture Sensitivity Level) 1 indicates Unlimited shelf life with no moisture precautions required. All listed parts carry MSL 1 rating, meaning they can be stored and handled under standard conditions without special moisture control measures.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. All substitute parts use the same 1206 package footprint and have identical electrical specifications (38.3 Ω ±1%, 0.25W, ±100ppm/°C, -55°C ~ 155°C). They are direct pin-compatible replacements requiring no PCB redesign or circuit modification.

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