Equivalent & Substitute Parts for RC1608J513CS

Part Overview

The RC1608J513CS is a 51 kOhms ±5% 0.1W thick film chip resistor in 0603 (1608 Metric) package manufactured by Samsung Electro-Mechanics. This component is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). The part is supplied in Tape & Reel packaging format.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, tolerance, power rating), mechanical compatibility (package size, dimensions, termination count), and environmental operating parameters. Substitute parts may offer enhanced features such as improved tolerance grades, automotive-grade certifications, or alternative packaging formats while maintaining functional equivalence.

Substiute Parts

RC1608J513CS

Samsung Electro-MechanicsIn Stock: 1066RC1608J513CS Datasheet

Current PartRFQ

RC0603JR-0751KL

YAGEOIn Stock: 326122RC0603JR-0751KL Datasheet

DirectRFQ

RMCF0603FT51K0

Stackpole Electronics IncIn Stock: 198654RMCF0603FT51K0 Datasheet

DirectRFQ

ERJ-3EKF5102V

Panasonic Electronic ComponentsIn Stock: 638662ERJ-3EKF5102V Datasheet

UpgradeRFQ

ERJ-3GEYJ513V

Panasonic Electronic ComponentsIn Stock: 70779ERJ-3GEYJ513V Datasheet

UpgradeRFQ

KTR03EZPF5102

Rohm SemiconductorIn Stock: 1104KTR03EZPF5102 Datasheet

UpgradeRFQ

RC0603FR-0751KL

YAGEOIn Stock: 1466391RC0603FR-0751KL Datasheet

UpgradeRFQ

RMCF0603JT51K0

Stackpole Electronics IncIn Stock: 589198RMCF0603JT51K0 Datasheet

UpgradeRFQ

AC0603JR-0751KL

YAGEOIn Stock: 58753AC0603JR-0751KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic is based on the following critical parameters that must match or exceed the main part specifications:

Mandatory Matching Parameters:

• Resistance value: 51 kOhms
• Power rating: 0.1W minimum
• Package: 0603 (1608 Metric)
• Operating temperature range: -55°C ~ 155°C minimum
• Termination count: 2
• RoHS compliance: ROHS3 Compliant

Allowable Variations:

• Tolerance: ±5% (main part) to ±1% (upgraded substitutes) — tighter tolerance is acceptable
• Temperature coefficient: ±100ppm/°C to ±200ppm/°C — higher values acceptable within operating range
• Packaging format: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel® — both formats are interchangeable for component selection
• Features: Moisture Resistant (main part) to Automotive AEC-Q200 (enhanced substitutes) — additional certifications do not restrict compatibility

Substitute Categories:

Direct Equivalents — Identical electrical and mechanical specifications with same tolerance (±5%):

• RC0603JR-0751KL (YAGEO)
• ERJ-3GEYJ513V (Panasonic Electronic Components)
• RMCF0603JT51K0 (Stackpole Electronics Inc)
• AC0603JR-0751KL (YAGEO)

Upgraded Substitutes — Enhanced tolerance (±1%) or automotive certification while maintaining all other parameters:

• RMCF0603FT51K0 (Stackpole Electronics Inc)
• ERJ-3EKF5102V (Panasonic Electronic Components)
• RC0603FR-0751KL (YAGEO)
• KTR03EZPF5102 (Rohm Semiconductor)

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Tolerance ±5%):

RC0603JR-0751KL (YAGEO) is the primary direct equivalent with identical electrical specifications and moisture-resistant composition. This part maintains the ±5% tolerance and ±100ppm/°C temperature coefficient of the original RC1608J513CS. The only difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel), which does not affect component functionality. Inventory availability is significantly higher (326,065 pcs).

ERJ-3GEYJ513V (Panasonic Electronic Components) provides direct equivalence with automotive AEC-Q200 certification. This part carries the same ±5% tolerance but features a higher temperature coefficient (±200ppm/°C). The automotive qualification adds environmental robustness without changing core electrical performance.

RMCF0603JT51K0 (Stackpole Electronics Inc) offers direct substitution with automotive AEC-Q200 rating and ±5% tolerance. Temperature coefficient is ±200ppm/°C. This part is suitable for applications requiring automotive-grade components.

AC0603JR-0751KL (YAGEO) combines direct electrical equivalence (±5%, ±100ppm/°C) with automotive AEC-Q200 certification and moisture-resistant features, providing enhanced environmental protection.

For Upgraded Selection (Tighter Tolerance ±1%):

RMCF0603FT51K0 (Stackpole Electronics Inc) upgrades tolerance to ±1% while maintaining all other specifications. This part is suitable for applications requiring improved accuracy without changing package or thermal characteristics.

ERJ-3EKF5102V (Panasonic Electronic Components) provides ±1% tolerance with automotive AEC-Q200 certification. This combination is appropriate for precision automotive applications.

RC0603FR-0751KL (YAGEO) offers ±1% tolerance with moisture-resistant composition. This part maintains the same thermal coefficient (±100ppm/°C) as the original while improving tolerance performance.

KTR03EZPF5102 (Rohm Semiconductor) combines ±1% tolerance with automotive AEC-Q200 and high-voltage features. This part is selected for applications requiring enhanced voltage performance and automotive qualification.

Selection Criteria:

• Standard applications: RC0603JR-0751KL or AC0603JR-0751KL
• Automotive applications: ERJ-3GEYJ513V, RMCF0603JT51K0, or AC0603JR-0751KL
• Precision applications: RMCF0603FT51K0, ERJ-3EKF5102V, or RC0603FR-0751KL
• High-voltage automotive: KTR03EZPF5102

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and -55°C ~ 155°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can RC0603JR-0751KL replace RC1608J513CS directly?

A: Yes. RC0603JR-0751KL is a direct equivalent with identical resistance (51 kOhms), tolerance (±5%), power rating (0.1W), package (0603), and operating temperature range (-55°C ~ 155°C). The only difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel), which does not affect component functionality or performance.

Q: What is the difference between ±5% and ±1% tolerance substitutes?

A: Tolerance specifies the allowable deviation from the nominal resistance value. RC1608J513CS with ±5% tolerance allows resistance between 48.45 kOhms and 53.55 kOhms. Upgraded substitutes with ±1% tolerance (such as RMCF0603FT51K0 or RC0603FR-0751KL) allow resistance between 50.49 kOhms and 51.51 kOhms. Tighter tolerance provides improved accuracy for precision circuits but is not required for general-purpose applications.

Q: Are automotive AEC-Q200 parts compatible with non-automotive applications?

A: Yes. Automotive AEC-Q200 certification indicates enhanced environmental testing and reliability qualification. Parts with this certification (ERJ-3GEYJ513V, RMCF0603JT51K0, AC0603JR-0751KL, ERJ-3EKF5102V, KTR03EZPF5102) can be used in non-automotive applications without restriction. The certification adds robustness but does not change electrical specifications.

Q: Does packaging format (Tape & Reel versus Cut Tape & Digi-Reel) affect component selection?

A: No. Both packaging formats contain identical components. Packaging format affects supply chain logistics and handling but not electrical performance or mechanical compatibility. Selection between formats depends on assembly equipment and procurement requirements.

Q: Can I use KTR03EZPF5102 in place of RC1608J513CS?

A: Yes, with the following considerations: KTR03EZPF5102 provides upgraded specifications including ±1% tolerance (versus ±5%), automotive AEC-Q200 certification, and high-voltage features. All core parameters (51 kOhms resistance, 0.1W power, 0603 package, -55°C ~ 155°C operating range) are compatible. The enhanced specifications do not restrict use in standard applications.

Q: What does temperature coefficient ±100ppm/°C versus ±200ppm/°C mean?

A: Temperature coefficient specifies resistance change per degree Celsius. At ±100ppm/°C, a 51 kOhm resistor changes approximately 5.1 ohms per °C. At ±200ppm/°C, the same resistor changes approximately 10.2 ohms per °C. For most applications operating within the -55°C ~ 155°C range, both coefficients are acceptable. Precision circuits may require the lower coefficient.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (RC0603JR-0751KL, RMCF0603FT51K0, ERJ-3EKF5102V, ERJ-3GEYJ513V, KTR03EZPF5102, RC0603FR-0751KL, RMCF0603JT51K0, AC0603JR-0751KL) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the original RC1608J513CS specifications.

Q: Which substitute offers the best inventory availability?

A: RC0603FR-0751KL (YAGEO) has the highest inventory with 1,466,303 pcs in stock. RC0603JR-0751KL (YAGEO) has 326,065 pcs. Both parts are readily available for immediate procurement.