Equivalent & Substitute Parts for ERJ-S08F4992V

Part Overview

The ERJ-S08F4992V is a 49.9 kOhms ±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, designed for applications requiring high reliability in automotive and industrial environments. The part is currently in active production status with 1154 units in stock.

Substitute parts are necessary when the primary part becomes unavailable, when alternative manufacturers offer better lead times or pricing, or when design flexibility allows for functionally equivalent alternatives that meet the same electrical and mechanical specifications.

Substiute Parts

ERJ-S08F4992V

Panasonic Electronic ComponentsIn Stock: 1221ERJ-S08F4992V Datasheet

Current PartRFQ

ERJ-8ENF4992V

Panasonic Electronic ComponentsIn Stock: 65137ERJ-8ENF4992V Datasheet

SimilarRFQ

AC1206FR-0749K9L

YAGEOIn Stock: 18216AC1206FR-0749K9L Datasheet

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CR1206-FX-4992ELF

Bourns Inc.In Stock: 54160CR1206-FX-4992ELF Datasheet

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CRCW120649K9FKEA

Vishay DaleIn Stock: 71430CRCW120649K9FKEA Datasheet

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CRCW120649K9FKEAHP

Vishay DaleIn Stock: 95501CRCW120649K9FKEAHP Datasheet

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CRCW120649K9FKTA

Vishay DaleIn Stock: 15235CRCW120649K9FKTA Datasheet

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RC1206FR-0749K9L

YAGEOIn Stock: 2255RC1206FR-0749K9L Datasheet

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RMCF1206FG49K9

Stackpole Electronics IncIn Stock: 3941RMCF1206FG49K9 Datasheet

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RMCF1206FT49K9

Stackpole Electronics IncIn Stock: 75637RMCF1206FT49K9 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERJ-S08F4992V is determined by strict equivalence across the following critical parameters:

• Resistance value: 49.9 kOhms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Package: 1206 (3216 Metric)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C to 155°C
• Termination count: 2
• Composition: Thick Film

All substitute parts listed meet these core electrical and mechanical requirements. Variations in secondary features such as anti-sulfur coating, moisture resistance, or automotive certification do not disqualify a part from substitution, as these represent enhanced capabilities rather than functional deviations. However, parts with different power ratings (such as 0.75W variants) are listed separately due to dimensional and thermal characteristic differences.

Parameter Comparison

Higher Power Rating Alternative

Engineering Selection Recommendations

For direct substitution with identical electrical and mechanical performance, select from the following active production parts with ROHS3 compliance:

• CRCW120649K9FKEA (Vishay Dale) — Automotive AEC-Q200 qualified, highest inventory availability (71,321 units)
• RMCF1206FT49K9 (Stackpole Electronics) — Automotive AEC-Q200 qualified, Tape & Reel packaging, high inventory (75,621 units)
• AC1206FR-0749K9L (YAGEO) — Automotive AEC-Q200 qualified with moisture resistance, Tape & Reel packaging (18,134 units)
• RC1206FR-0749K9L (YAGEO) — Moisture resistant, available in Cut Tape & Digi-Reel format (2,200 units)
• CR1206-FX-4992ELF (Bourns Inc.) — Moisture resistant, Tape & Reel packaging (54,095 units)

The ERJ-8ENF4992V (Panasonic) is electrically equivalent but carries "Not For New Designs" status and should be used only for legacy system maintenance or repair applications.

The CRCW120649K9FKTA variant is not recommended for new designs due to RoHS non-compliance and REACH affected status.

For applications requiring higher thermal performance, the CRCW120649K9FKEAHP (0.75W variant) provides enhanced power dissipation capability while maintaining the same resistance, tolerance, and package footprint.

Frequently Asked Questions (FAQ)

Q: Can I use ERJ-8ENF4992V as a direct replacement for ERJ-S08F4992V?

A: Electrically and mechanically, yes. Both parts share identical resistance (49.9 kOhms), tolerance (±1%), power rating (0.25W), package (1206), and operating temperature range (-55°C to 155°C). However, ERJ-8ENF4992V is marked "Not For New Designs" and should be reserved for legacy system repairs only.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel packaging is supplied on continuous tape suitable for automated pick-and-place assembly. Cut Tape & Digi-Reel packaging is pre-cut into smaller quantities for manual assembly or lower-volume production. Both formats contain identical components; the difference is in delivery and handling format only.

Q: Are all listed substitutes automotive-qualified?

A: Not all. ERJ-S08F4992V, ERJ-8ENF4992V, AC1206FR-0749K9L, CRCW120649K9FKEA, CRCW120649K9FKEAHP, RMCF1206FG49K9, and RMCF1206FT49K9 carry AEC-Q200 automotive qualification. CR1206-FX-4992ELF and RC1206FR-0749K9L do not list AEC-Q200 but are suitable for general industrial applications.

Q: Can I substitute a 0.75W part (CRCW120649K9FKEAHP) for the 0.25W ERJ-S08F4992V?

A: Yes, from an electrical standpoint. The 0.75W variant has identical resistance, tolerance, and package dimensions. However, verify that your PCB layout and thermal design accommodate the higher power rating, as this may affect heat dissipation characteristics and board-level thermal management.

Q: What does ROHS3 compliance mean?

A: ROHS3 (Restriction of Hazardous Substances Directive 3) compliance indicates the part meets European environmental standards restricting lead, cadmium, mercury, and other hazardous substances. All recommended substitutes are ROHS3 compliant except CRCW120649K9FKTA.

Q: Which substitute has the best inventory availability?

A: RMCF1206FT49K9 (Stackpole Electronics) has the highest inventory at 75,621 units, followed closely by CRCW120649K9FKEA (Vishay Dale) at 71,321 units.