ERJ-S08F4990V Equivalent & Substitute Parts

Part Overview

The ERJ-S08F4990V is a 499 Ohm ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by Panasonic Electronic Components. This part features anti-sulfur coating and automotive AEC-Q200 qualification, making it suitable for automotive and harsh environment applications. The part is currently in active production status with 903 units in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when design requirements change, or when alternative manufacturers offer superior lead times or pricing while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	499 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 to 155°C
Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters:

Resistance value: 499 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 to 155°C
Termination count: 2
Moisture sensitivity level: 1 (Unlimited)

All substitute parts listed meet these core electrical and mechanical requirements. Variations in physical dimensions (length, width, height) within the 1206 package specification, manufacturer-specific features (anti-sulfur coating, moisture resistance), and product status do not affect functional substitutability for standard circuit applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Product Status	RoHS Status	AEC-Q200
ERJ-S08F4990V	Panasonic	499Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Active	ROHS3	Yes
ERJ-8ENF4990V	Panasonic	499Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Not For New Designs	ROHS3	Yes
CRG1206F499R	TE Connectivity	499Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Active	ROHS3	No
RCA1206499RFKEA	Vishay Dale	499Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Active	ROHS3	Yes
AC1206FR-07499RL	YAGEO	499Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Active	ROHS3	Yes
CR1206-FX-4990ELF	Bourns Inc.	499Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Active	ROHS3	No
CRCW1206499RFKEA	Vishay Dale	499Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Active	ROHS3	Yes
CRCW1206499RFKEAHP	Vishay Dale	499Ω	±1%	0.75	1206	±100ppm/°C	-55 to 155°C	Active	ROHS3	Yes
CRCW1206499RFKTA	Vishay Dale	499Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Active	RoHS non-compliant	Yes
RC1206FR-07499RL	YAGEO	499Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Active	ROHS3	No
RMCF1206FT499R	Stackpole Electronics	499Ω	±1%	0.25	1206	±100ppm/°C	-55 to 155°C	Active	ROHS3	Yes

Engineering Selection Recommendations

For new designs and production applications, select from parts with Active product status and ROHS3 compliance. The following parts are recommended as primary substitutes:

RCA1206499RFKEA, CRCW1206499RFKEA, and RMCF1206FT499R are direct equivalents with active status, full RoHS3 compliance, and AEC-Q200 automotive qualification matching the original ERJ-S08F4990V specification.

AC1206FR-07499RL and RC1206FR-07499RL from YAGEO are functionally equivalent with active status and RoHS3 compliance, though they lack AEC-Q200 automotive qualification.

CR1206-FX-4990ELF from Bourns is electrically equivalent with active status and RoHS3 compliance but does not carry AEC-Q200 rating.

ERJ-8ENF4990V from Panasonic is electrically and mechanically identical but carries "Not For New Designs" status and should be used only for legacy system maintenance or repair.

CRCW1206499RFKEAHP has higher power rating (0.75W) and is suitable only when increased power dissipation capability is required.

CRCW1206499RFKTA is not recommended due to RoHS non-compliance and REACH-affected status.

Frequently Asked Questions (FAQ)

Q: Can ERJ-8ENF4990V be used as a substitute for ERJ-S08F4990V?

A: Electrically and mechanically, yes. However, ERJ-8ENF4990V carries "Not For New Designs" status. Use only for repair or maintenance of existing systems using this legacy part number.

Q: What is the difference between parts with and without AEC-Q200 qualification?

A: AEC-Q200 qualification indicates the part meets automotive industry reliability standards for temperature cycling, moisture resistance, and failure rate testing. For automotive applications, AEC-Q200 qualified parts are required. For general industrial use, non-qualified parts are functionally equivalent.

Q: Can CRCW1206499RFKEAHP replace ERJ-S08F4990V?

A: Electrically yes, but only if the circuit design permits higher power dissipation. CRCW1206499RFKEAHP is rated 0.75W versus the 0.25W rating of ERJ-S08F4990V. Use only when increased power handling is needed or when thermal design allows.

Q: Are there dimensional differences between substitute parts?

A: All parts use the 1206 (3216 Metric) package. Minor variations exist in maximum seated height (0.024" to 0.030") and length/width within package tolerance. These variations do not affect PCB layout or reflow soldering for standard 1206 footprints.

Q: Which substitute offers the best availability?

A: CR1206-FX-4990ELF from Bourns has the highest inventory (93,716 units), followed by RC1206FR-07499RL from YAGEO (94,723 units) and CRCW1206499RFKEAHP from Vishay (94,859 units).

Q: Is RoHS compliance required for my application?

A: RoHS3 compliance is mandatory for products sold in the European Union and many other markets. CRCW1206499RFKTA is RoHS non-compliant and should not be used for EU market applications.

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