RT1206FRE0739KL Equivalent & Substitute Parts

Part Overview

The RT1206FRE0739KL is a 39 kOhms ±1% thin film chip resistor in 1206 (3216 Metric) package manufactured by YAGEO. This surface mount device is rated for 0.25W (1/4W) power dissipation and operates across -55°C to 155°C. The part is active in production status and ROHS3 compliant, making it suitable for general-purpose and industrial applications. Substitute parts are identified to provide alternatives with improved tolerance specifications, enhanced automotive qualification, or alternative sourcing from qualified manufacturers.

Substiute Parts

RT1206FRE0739KL

YAGEOIn Stock: 5028RT1206FRE0739KL Datasheet

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RT1206BRD0739KL

YAGEOIn Stock: 6248RT1206BRD0739KL Datasheet

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RT1206DRE0739KL

YAGEOIn Stock: 3373RT1206DRE0739KL Datasheet

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ERA-8AEB393V

Panasonic Electronic ComponentsIn Stock: 11740ERA-8AEB393V Datasheet

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RG3216P-3902-D-T5

SusumuIn Stock: 5521RG3216P-3902-D-T5 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RT1206FRE0739KL is determined by the following critical parameters:

• Resistance Value: All substitutes must be 39 kOhms
• Package / Case: All substitutes must be 1206 (3216 Metric) form factor
• Power Rating: All substitutes must be rated 0.25W (1/4W) minimum
• Composition: All substitutes must be thin film construction
• Operating Temperature Range: All substitutes must support -55°C ~ 155°C minimum
• RoHS Compliance: All substitutes must maintain ROHS3 compliance

Tolerance specifications (±1%, ±0.5%, ±0.1%) represent upgrades rather than direct equivalents. Tighter tolerance parts may be substituted where circuit design permits. Temperature coefficient and automotive qualification (AEC-Q200) are additional differentiators among qualified alternatives.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Same Tolerance): RT1206DRE0739KL provides ±0.5% tolerance as an alternative YAGEO source with identical electrical performance to the primary part within the same tolerance band.

Upgraded Tolerance (Tighter Specification): RT1206BRD0739KL and ERA-8AEB393V both offer ±0.1% tolerance, representing a 10-fold improvement in tolerance specification. These parts are suitable for applications requiring higher precision without circuit redesign, provided the application does not mandate specific sourcing restrictions.

Automotive-Qualified Alternatives: ERA-8AEB393V (Panasonic) and RG3216P-3902-D-T5 (Susumu) carry AEC-Q200 automotive qualification. These parts are appropriate for automotive and harsh-environment applications where qualification documentation is required. RG3216P-3902-D-T5 additionally features anti-sulfur construction.

Multi-Source Strategy: All five parts maintain ROHS3 compliance and identical operating temperature ranges. Selection among these alternatives may be driven by supply chain diversification, inventory availability, or specific application certifications rather than electrical performance differences.

Frequently Asked Questions (FAQ)

Q: Can RT1206BRD0739KL replace RT1206FRE0739KL directly? A: Yes. Both parts share identical resistance value (39 kOhms), power rating (0.25W), package (1206), and operating temperature range (-55°C ~ 155°C). RT1206BRD0739KL offers tighter tolerance (±0.1% vs ±1%) and lower temperature coefficient (±25ppm/°C vs ±50ppm/°C), making it a direct upgrade with no circuit modifications required.

Q: What is the difference between YAGEO RT series and Panasonic ERA-8A series? A: Both manufacturers produce 39 kOhms thin film resistors in 1206 package with identical electrical specifications. ERA-8AEB393V includes AEC-Q200 automotive qualification, while YAGEO RT1206 series parts do not. Selection depends on application requirements and sourcing preferences.

Q: Is the RG3216P-3902-D-T5 suitable for automotive applications? A: Yes. The RG3216P-3902-D-T5 carries AEC-Q200 automotive qualification and includes anti-sulfur construction, making it appropriate for automotive and corrosive-environment applications. It maintains the same 39 kOhms resistance, 0.25W power rating, and 1206 package as the primary part.

Q: Do all substitute parts have the same physical dimensions? A: All parts use 1206 (3216 Metric) package designation. Minor dimensional variations exist: YAGEO parts measure 0.122" L × 0.063" W (3.10mm × 1.60mm), while Panasonic ERA-8A and Susumu RG measure 0.126" L × 0.063" W (3.20mm × 1.60mm). Height differences are also present (0.026" to 0.028" maximum seated height). Verify PCB layout clearances for critical applications.

Q: Are all parts ROHS3 compliant? A: Yes. All listed parts—RT1206FRE0739KL, RT1206BRD0739KL, RT1206DRE0739KL, ERA-8AEB393V, and RG3216P-3902-D-T5—are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: What tolerance should I select for my application? A: Tolerance selection depends on circuit requirements. The ±1% specification of RT1206FRE0739KL is suitable for general-purpose applications. Tighter ±0.5% or ±0.1% tolerances are appropriate for precision analog circuits, reference networks, or applications with stringent accuracy requirements. Verify circuit design specifications before selecting a substitute.