RC1608J1R5CS Equivalent & Substitute Parts

Part Overview

The RC1608J1R5CS is a 1.5 Ohm ±5% thick film chip resistor manufactured by Samsung Electro-Mechanics in 0603 (1608 Metric) package format with 0.1W power rating. This component is classified as Active product status and is moisture resistant, suitable for general-purpose SMD applications requiring standard tolerance resistive elements. Substitute parts are identified to address inventory availability, enhanced performance specifications, or specific application requirements such as automotive qualification or improved tolerance characteristics.

Substiute Parts

RC1608J1R5CS

Samsung Electro-MechanicsIn Stock: 777RC1608J1R5CS Datasheet

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ERJ-3BQF1R5V

Panasonic Electronic ComponentsIn Stock: 23211ERJ-3BQF1R5V Datasheet

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ERJ-3RQF1R5V

Panasonic Electronic ComponentsIn Stock: 43071ERJ-3RQF1R5V Datasheet

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ERJ-3RQJ1R5V

Panasonic Electronic ComponentsIn Stock: 7580ERJ-3RQJ1R5V Datasheet

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KTR03EZPF1R50

Rohm SemiconductorIn Stock: 19721KTR03EZPF1R50 Datasheet

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RC0603JR-071R5L

YAGEOIn Stock: 265233RC0603JR-071R5L Datasheet

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RMCF0603FT1R50

Stackpole Electronics IncIn Stock: 87722RMCF0603FT1R50 Datasheet

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RMCF0603JT1R50

Stackpole Electronics IncIn Stock: 1231RMCF0603JT1R50 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC1608J1R5CS is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

• Resistance value: 1.5 Ohms
• Package / Case: 0603 (1608 Metric)
• Operating temperature range: -55°C ~ 155°C
• Composition: Thick Film
• Number of terminations: 2

Allowable Variations:

• Tolerance: ±5% (main part) to ±1% (substitute parts) — tighter tolerance is acceptable
• Power rating: 0.1W (main part) to 0.25W (substitute parts) — higher power rating is acceptable
• Temperature coefficient: ±300ppm/°C (main part) to ±200ppm/°C (substitute parts) — lower coefficient is acceptable
• Features: Moisture resistant (main part) to automotive AEC-Q200 or current sense (substitute parts) — additional certifications are acceptable

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical physical dimensions (0.063" L x 0.031" W, 0.022" max height).

Parameter Comparison

Engineering Selection Recommendations

Direct Functional Equivalents (Identical Tolerance and Power Rating):

RC0603JR-071R5L (YAGEO) and ERJ-3RQJ1R5V (Panasonic Electronic Components) are direct functional equivalents to RC1608J1R5CS, maintaining ±5% tolerance and 0.1W power rating. Both are ROHS3 compliant with MSL 1 rating. RC0603JR-071R5L offers significantly higher inventory availability (265200 pcs) and moisture resistant features matching the original specification. ERJ-3RQJ1R5V provides automotive AEC-Q200 qualification with current sense capability.

Enhanced Tolerance Substitutes (±1% Tolerance):

RMCF0603FT1R50 (Stackpole Electronics Inc), ERJ-3RQF1R5V (Panasonic Electronic Components), and KTR03EZPF1R50 (Rohm Semiconductor) provide improved ±1% tolerance while maintaining 0.1W power rating. All three carry automotive AEC-Q200 qualification. RMCF0603FT1R50 offers the highest inventory level (87674 pcs) among this group. KTR03EZPF1R50 includes high voltage capability. All maintain operating temperature range of -55°C ~ 155°C with reduced temperature coefficient (±200ppm/°C).

Higher Power Rating Substitute:

ERJ-3BQF1R5V (Panasonic Electronic Components) provides 0.25W power rating with ±1% tolerance and automotive AEC-Q200 qualification. This substitute is applicable where increased power dissipation capacity is required within the same package footprint.

All substitute parts maintain identical package dimensions (0603 / 1608 Metric), two terminations, and full ROHS3 compliance with MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can ERJ-3RQJ1R5V replace RC1608J1R5CS in any application?

A: Yes. ERJ-3RQJ1R5V maintains identical resistance (1.5 Ohms), tolerance (±5%), power rating (0.1W), and package format (0603). The substitute adds automotive AEC-Q200 qualification and current sense capability. Operating temperature range, composition, and physical dimensions are equivalent.

Q: What is the difference between RMCF0603FT1R50 and RMCF0603JT1R50?

A: Both are Stackpole Electronics Inc 0603 package resistors with 1.5 Ohm resistance and automotive AEC-Q200 qualification. RMCF0603FT1R50 provides ±1% tolerance, while RMCF0603JT1R50 provides ±5% tolerance. Both maintain 0.1W power rating and ±200ppm/°C temperature coefficient. Selection depends on tolerance requirements of the application.

Q: Is RC0603JR-071R5L compatible with the original RC1608J1R5CS specification?

A: Yes. RC0603JR-071R5L is a direct equivalent with matching 1.5 Ohm resistance, ±5% tolerance, 0.1W power rating, and 0603 package format. Both components are moisture resistant thick film resistors with identical operating temperature range (-55°C ~ 155°C) and MSL 1 rating. The primary difference is packaging format: RC1608J1R5CS is supplied in Cut Tape, while RC0603JR-071R5L is supplied in Tape & Reel.

Q: Why would I select a ±1% tolerance substitute over the original ±5% part?

A: Applications requiring tighter resistance tolerance specifications benefit from ±1% substitutes such as RMCF0603FT1R50, ERJ-3RQF1R5V, or KTR03EZPF1R50. These substitutes maintain identical power rating and package format while providing improved tolerance performance. Selection is application-dependent based on circuit accuracy requirements.

Q: Are all substitute parts automotive qualified?

A: No. RC0603JR-071R5L (YAGEO) and the original RC1608J1R5CS (Samsung Electro-Mechanics) do not carry automotive AEC-Q200 qualification. ERJ-3BQF1R5V, ERJ-3RQF1R5V, ERJ-3RQJ1R5V (Panasonic), KTR03EZPF1R50 (Rohm), RMCF0603FT1R50, and RMCF0603JT1R50 (Stackpole) all carry AEC-Q200 qualification. Selection of automotive-qualified parts is required for automotive applications.

Q: What is the inventory advantage of selecting RC0603JR-071R5L?

A: RC0603JR-071R5L maintains 265200 pcs in stock, significantly exceeding the original RC1608J1R5CS inventory of 724 pcs. This substitute provides superior supply chain availability while maintaining functional equivalence in resistance, tolerance, power rating, and package format.

Q: Can ERJ-3BQF1R5V be used where 0.1W power rating is specified?

A: Yes. ERJ-3BQF1R5V provides 0.25W power rating, which exceeds the 0.1W requirement. Higher power rating is acceptable in applications specifying 0.1W, as the component can safely dissipate power levels up to its rated capacity. This substitute is suitable for applications where increased thermal margin is beneficial.