ERJ-S06F49R9V Equivalent & Substitute Parts

Part Overview

The ERJ-S06F49R9V is a 49.9 Ohm ±1% 1/8W (0.125W) thick film chip resistor in 0805 (2012 Metric) package manufactured by Panasonic Electronic Components. This part features anti-sulfur coating and automotive AEC-Q200 qualification, designed for high-reliability applications in automotive and industrial environments. The part is currently active in production with 968 units in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required, or when design flexibility permits selection from multiple qualified manufacturers meeting identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Resistance	49.9 Ohms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package / Case	0805 (2012 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S06F49R9V is determined by strict equivalence across the following parameters:

Resistance value: 49.9 Ohms
Tolerance: ±1%
Power rating: 0.125W (1/8W)
Package: 0805 (2012 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C to 155°C
Automotive qualification: AEC-Q200

Parts are classified into two categories:

Direct Substitutes maintain identical electrical specifications, power rating, and automotive qualification. These parts are interchangeable without circuit redesign.

Similar Parts meet all core electrical and mechanical requirements but may differ in packaging format (Tape & Reel vs. Cut Tape), anti-sulfur coating presence, or height specifications. These parts are functionally equivalent but require verification of packaging compatibility with assembly equipment.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Packaging Format	AEC-Q200	Anti-Sulfur	Height (Max)	Product Status	Inventory
ERJ-S06F49R9V	Panasonic	49.9Ω	±1%	0.125	0805	Tape & Reel	Yes	Yes	0.70mm	Active	968
ERJ-U06F49R9V	Panasonic	49.9Ω	±1%	0.125	0805	Tape & Reel	Yes	Yes	0.70mm	Active	5620
ERJ-6ENF49R9V	Panasonic	49.9Ω	±1%	0.125	0805	Cut Tape & Digi-Reel	Yes	No	0.70mm	Active	186378
RCA080549R9FKEA	Vishay Dale	49.9Ω	±1%	0.125	0805	Tape & Reel	Yes	Yes	0.50mm	Active	49558
TRR10EZPF49R9	Rohm Semiconductor	49.9Ω	±1%	0.125	0805	Cut Tape & Digi-Reel	No	Yes	0.65mm	Obsolete	3900
AC0805FR-0749R9L	YAGEO	49.9Ω	±1%	0.125	0805	Tape & Reel	Yes	No	0.60mm	Active	18773
CR0805-FX-49R9ELF	Bourns Inc.	49.9Ω	±1%	0.125	0805	Tape & Reel	No	No	0.60mm	Active	191544
CRCW080549R9FKEA	Vishay Dale	49.9Ω	±1%	0.125	0805	Cut Tape & Digi-Reel	Yes	No	0.50mm	Active	82801
CRCW080549R9FKEAHP	Vishay Dale	49.9Ω	±1%	0.5	0805	Cut Tape & Digi-Reel	Yes	No	0.50mm	Active	5400
CRCW080549R9FKTA	Vishay Dale	49.9Ω	±1%	0.125	0805	Tape & Reel	Yes	No	0.50mm	Active	7885
ESR10EZPF49R9	Rohm Semiconductor	49.9Ω	±1%	0.4	0805	Tape & Reel	Yes	No	0.65mm	Active	187572

Engineering Selection Recommendations

Primary Direct Substitutes (Identical Specifications)

ERJ-U06F49R9V (Panasonic) is the direct equivalent with identical electrical and mechanical specifications. Higher inventory availability (5620 units) provides supply continuity. Both ERJ-S06 and ERJ-U06 series share identical performance characteristics and automotive qualification.

RCA080549R9FKEA (Vishay Dale) is a direct substitute meeting all core specifications with AEC-Q200 qualification and anti-sulfur coating. Reduced height (0.50mm vs. 0.70mm) requires clearance verification in PCB assembly.

CRCW080549R9FKTA (Vishay Dale) meets all electrical and mechanical requirements with AEC-Q200 qualification. RoHS non-compliance and REACH Affected status require regulatory review for applications subject to these standards.

Secondary Alternatives (Functional Equivalents with Variations)

ERJ-6ENF49R9V (Panasonic) provides identical electrical performance with Cut Tape & Digi-Reel packaging. Absence of anti-sulfur coating requires environmental assessment for applications in corrosive atmospheres. Highest inventory (186378 units) supports long-term availability.

AC0805FR-0749R9L (YAGEO) meets all core specifications with AEC-Q200 qualification and moisture-resistant composition. Reduced height (0.60mm) requires assembly equipment verification.

CR0805-FX-49R9ELF (Bourns Inc.) provides functional equivalence with moisture-resistant composition. Absence of AEC-Q200 qualification and anti-sulfur coating limits use to non-automotive applications. Highest inventory (191544 units) among all alternatives.

CRCW080549R9FKEA (Vishay Dale) meets electrical specifications with AEC-Q200 qualification. Cut Tape & Digi-Reel packaging requires assembly equipment compatibility verification.

Not Recommended for Direct Substitution

TRR10EZPF49R9 (Rohm Semiconductor) is obsolete and should not be selected for new designs despite current inventory availability.

CRCW080549R9FKEAHP (Vishay Dale) has 0.5W power rating, exceeding the 0.125W specification of the primary part. This part is suitable only for applications requiring higher power dissipation capability.

ESR10EZPF49R9 (Rohm Semiconductor) has 0.4W power rating, exceeding the 0.125W specification. Selection requires circuit redesign to accommodate higher power rating.

Frequently Asked Questions (FAQ)

Q: Can ERJ-U06F49R9V replace ERJ-S06F49R9V without circuit modification?

A: Yes. ERJ-U06F49R9V is a direct equivalent with identical resistance, tolerance, power rating, package, and automotive qualification. Both parts are interchangeable at the circuit level.

Q: What is the significance of anti-sulfur coating?

A: Anti-sulfur coating protects the resistor from corrosion in environments with hydrogen sulfide exposure. Parts without this coating (ERJ-6ENF49R9V, AC0805FR-0749R9L, CR0805-FX-49R9ELF, CRCW080549R9FKEA, CRCW080549R9FKTA, ESR10EZPF49R9) are suitable for standard industrial and automotive applications but may require environmental assessment for corrosive atmospheres.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel and Cut Tape & Digi-Reel formats contain identical components. Format selection depends on assembly equipment compatibility and supply chain requirements, not electrical characteristics.

Q: Why do some parts have different height specifications?

A: Height variation (0.50mm to 0.70mm) results from manufacturing process differences between manufacturers. PCB design must accommodate the maximum height of the selected part. Verify clearance with assembly equipment and PCB layout constraints.

Q: Can parts with higher power ratings substitute for the ERJ-S06F49R9V?

A: CRCW080549R9FKEAHP (0.5W) and ESR10EZPF49R9 (0.4W) have electrical equivalence but exceed the 0.125W specification. These parts are physically compatible but require circuit analysis to confirm thermal performance is acceptable. Higher power ratings do not create functional problems in circuits designed for lower power dissipation.

Q: What is the impact of RoHS and REACH compliance status?

A: ROHS3 compliance and REACH Unaffected status are required for applications subject to European Union regulations. CRCW080549R9FKTA is RoHS non-compliant and REACH Affected, restricting use to applications outside regulated markets. Verify regulatory requirements before selection.

Q: Is AEC-Q200 qualification mandatory for automotive applications?

A: AEC-Q200 qualification indicates automotive-grade reliability testing. Parts without this qualification (TRR10EZPF49R9, CR0805-FX-49R9ELF, ESR10EZPF49R9) are suitable for industrial applications but should not be used in automotive designs requiring this certification.

Q: Why is TRR10EZPF49R9 listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. While current inventory exists, long-term availability cannot be assured. New designs should not specify obsolete parts.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message