Equivalent & Substitute Parts for RT1206FRE075K49L

Part Overview

The RT1206FRE075K49L is a 5.49 kOhms ±1% thin film chip resistor in 1206 (3216 Metric) package manufactured by YAGEO. This component is actively produced and widely used in general-purpose electronic applications requiring precision resistive elements. Substitute parts are identified to provide alternatives for inventory management, supply chain continuity, or enhanced performance specifications while maintaining electrical and mechanical compatibility.

Substiute Parts

RT1206FRE075K49L

YAGEOIn Stock: 1140RT1206FRE075K49L Datasheet

Current PartRFQ

ERA-8AEB5491V

Panasonic Electronic ComponentsIn Stock: 17230ERA-8AEB5491V Datasheet

UpgradeRFQ

RNCF1206BKC5K49

Stackpole Electronics IncIn Stock: 1144RNCF1206BKC5K49 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RT1206FRE075K49L are qualified based on the following criteria:

• Identical resistance value: 5.49 kOhms
• Compatible package: 1206 (3216 Metric)
• Thin film composition maintained
• Operating temperature range: -55°C ~ 155°C minimum
• RoHS3 compliance
• MSL rating of 1 or equivalent

Substitutes may vary in tolerance specification (±0.1% vs ±1%), power rating (0.25W or 0.333W), temperature coefficient, and automotive qualification (AEC-Q200). These variations represent functional upgrades or alternative sourcing options while preserving core electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

ERA-8AEB5491V (Panasonic Electronic Components) provides an upgrade path with improved tolerance (±0.1% vs ±1%) and lower temperature coefficient (±25ppm/°C vs ±50ppm/°C). This part carries AEC-Q200 automotive qualification and maintains identical power rating and operating temperature range. Selection is appropriate for applications requiring tighter resistance tolerance and automotive-grade reliability.

RNCF1206BKC5K49 (Stackpole Electronics Inc) offers increased power dissipation capability (0.333W vs 0.25W) while maintaining ±0.1% tolerance. This part also carries AEC-Q200 automotive qualification. Selection is appropriate for applications with higher thermal stress or automotive requirements where the enhanced power rating provides design margin.

All substitute parts maintain ROHS3 compliance, MSL-1 rating, and identical package geometry, ensuring direct mechanical and electrical compatibility with the original RT1206FRE075K49L specification.

Frequently Asked Questions (FAQ)

Q: Can ERA-8AEB5491V or RNCF1206BKC5K49 be used as direct replacements for RT1206FRE075K49L?

A: Yes. Both substitute parts share identical resistance value (5.49 kOhms), package (1206), composition (thin film), and operating temperature range (-55°C ~ 155°C). Mechanical footprint compatibility is maintained. The substitutes offer enhanced tolerance and automotive qualification as additional benefits.

Q: What is the difference between ±1% and ±0.1% tolerance?

A: Tolerance defines the maximum deviation from the nominal resistance value. RT1206FRE075K49L allows ±1% deviation (±54.9 Ohms from 5.49 kOhms). ERA-8AEB5491V and RNCF1206BKC5K49 allow ±0.1% deviation (±5.49 Ohms), providing tighter resistance accuracy for precision applications.

Q: Why do the substitute parts have different power ratings?

A: ERA-8AEB5491V maintains 0.25W matching the original part. RNCF1206BKC5K49 provides 0.333W (1/3W) rating, offering higher thermal dissipation capability. Both ratings are compatible with 1206 package dimensions. Selection depends on circuit power dissipation requirements.

Q: What does AEC-Q200 qualification mean?

A: AEC-Q200 is an automotive industry standard qualification for passive components. It certifies the part for automotive applications through defined reliability and performance testing. This qualification is optional for general-purpose applications but required for automotive designs.

Q: Are there physical dimension differences between these parts?

A: Minor variations exist within 1206 package tolerance. RT1206FRE075K49L: 3.10mm L × 1.60mm W × 0.65mm H (max). ERA-8AEB5491V: 3.20mm L × 1.60mm W × 0.70mm H (max). RNCF1206BKC5K49: 3.05mm L × 1.55mm W × 0.65mm H (max). All dimensions fall within standard 1206 PCB footprint specifications.

Q: Which substitute should I select for my application?

A: Selection depends on specific requirements. For general-purpose applications with standard tolerance, RT1206FRE075K49L is suitable. For precision circuits requiring tighter tolerance and lower temperature coefficient, select ERA-8AEB5491V. For high-power or automotive applications, select RNCF1206BKC5K49.