RC1608J821CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608J821CS is a 820 Ohms ±5% 0.1W thick film chip resistor in 0603 (1608 Metric) package manufactured by Samsung Electro-Mechanics. This moisture-resistant component operates across -55°C to 155°C and is ROHS3 compliant with MSL 1 rating. The part is currently active in production with 4960 pieces in stock. Equivalent and substitute parts are necessary to address supply chain flexibility, alternative sourcing options, and specific application requirements such as automotive qualification or tighter tolerance specifications.

Key Parameters

Parameter	Value
Resistance	820 Ohms
Tolerance	±5%
Power Rating	0.1W (1/10W)
Package / Case	0603 (1608 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Size / Dimension	0.063" L x 0.031" W (1.60mm x 0.80mm)
Height - Seated (Max)	0.022" (0.55mm)
Number of Terminations	2

Substitute Part Grouping Explanation

Substitution eligibility for the RC1608J821CS is determined by the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 820 Ohms
Package / Case: 0603 (1608 Metric)
Power Rating: 0.1W (1/10W)
Composition: Thick Film
Operating Temperature Range: -55°C ~ 155°C
Number of Terminations: 2
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

Tolerance: ±5% (direct equivalent) or ±1% (upgrade specification)
Temperature Coefficient: ±100ppm/°C (direct equivalent) or ±200ppm/°C (acceptable variance)
Features: Moisture Resistant (direct equivalent) or Automotive AEC-Q200 (enhanced specification)
Packaging Format: Cut Tape (CT), Digi-Reel®, or Tape & Reel (TR)

Substitute parts are categorized as direct equivalents when tolerance and temperature coefficient match the main part specification, or as upgrades when offering tighter tolerance (±1%) or automotive qualification (AEC-Q200) while maintaining all mandatory parameters.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Temp Coeff	Features	Package	Status
RC1608J821CS	Samsung Electro-Mechanics	820Ω	±5%	0.1W	±100ppm/°C	Moisture Resistant	0603	Active
RC0603JR-07820RL	YAGEO	820Ω	±5%	0.1W	±100ppm/°C	Moisture Resistant	0603	Active
CRG0603F820R	TE Connectivity	820Ω	±1%	0.1W	±100ppm/°C	—	0603	Active
ERJ-3EKF8200V	Panasonic	820Ω	±1%	0.1W	±100ppm/°C	Automotive AEC-Q200	0603	Active
ERJ-3GEYJ821V	Panasonic	820Ω	±5%	0.1W	±200ppm/°C	Automotive AEC-Q200	0603	Active
KTR03EZPF8200	Rohm Semiconductor	820Ω	±1%	0.1W	±100ppm/°C	Automotive AEC-Q200, High Voltage	0603	Active
MCR03ERTF8200	Rohm Semiconductor	820Ω	±1%	0.1W	±100ppm/°C	—	0603	Discontinued
MCR03ERTJ821	Rohm Semiconductor	820Ω	±5%	0.1W	±200ppm/°C	—	0603	Discontinued
RC0603FR-07820RL	YAGEO	820Ω	±1%	0.1W	±100ppm/°C	Moisture Resistant	0603	Active
RMCF0603FT820R	Stackpole Electronics	820Ω	±1%	0.1W	±100ppm/°C	Automotive AEC-Q200	0603	Active
RMCF0603JT820R	Stackpole Electronics	820Ω	±5%	0.1W	±200ppm/°C	Automotive AEC-Q200	0603	Active

Engineering Selection Recommendations

Direct Equivalent Selection (RC1608J821CS Replacement):

RC0603JR-07820RL (YAGEO) is the primary direct equivalent, matching all electrical specifications including ±5% tolerance, ±100ppm/°C temperature coefficient, and moisture-resistant thick film composition. Both parts are active in production with high inventory availability (10400 pieces). This part maintains identical performance characteristics and is suitable for direct substitution in existing designs.

Upgrade Selection for Enhanced Tolerance:

RC0603FR-07820RL (YAGEO), CRG0603F820R (TE Connectivity), ERJ-3EKF8200V (Panasonic), RMCF0603FT820R (Stackpole Electronics), and KTR03EZPF8200 (Rohm Semiconductor) all provide ±1% tolerance specification while maintaining the 0603 package and 0.1W power rating. These upgrades are suitable when circuit design requires tighter resistance tolerance. All are ROHS3 compliant and active in production.

Automotive-Qualified Selection:

ERJ-3EKF8200V, ERJ-3GEYJ821V, KTR03EZPF8200, RMCF0603FT820R, and RMCF0603JT820R carry AEC-Q200 automotive qualification. These parts are appropriate for automotive applications or systems requiring automotive-grade component reliability. ERJ-3EKF8200V and RMCF0603FT820R combine AEC-Q200 qualification with ±1% tolerance.

Discontinued Parts:

MCR03ERTF8200 and MCR03ERTJ821 (Rohm Semiconductor) are discontinued at DiGi Electronics. While inventory remains available (824 and 1185 pieces respectively), these parts should not be selected for new designs or long-term production requirements.

Frequently Asked Questions (FAQ)

Q: Can RC0603JR-07820RL directly replace RC1608J821CS without circuit redesign?

A: Yes. RC0603JR-07820RL is a direct equivalent with identical electrical specifications (820Ω ±5%, 0.1W, ±100ppm/°C) and package dimensions (0603). Both are moisture-resistant thick film resistors with ROHS3 compliance and MSL 1 rating. No circuit redesign is required.

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

A: Tolerance specifies the maximum deviation from the nominal 820 Ohm resistance value. ±5% tolerance allows deviation up to ±41 Ohms (779-861 Ohms range), while ±1% tolerance restricts deviation to ±8.2 Ohms (811.8-828.2 Ohms range). ±1% parts are suitable for precision circuits requiring tighter resistance control.

Q: Are automotive AEC-Q200 parts suitable for non-automotive applications?

A: Yes. AEC-Q200 qualification indicates enhanced reliability testing and quality standards. Parts such as ERJ-3EKF8200V and RMCF0603FT820R can be used in non-automotive applications without restriction. They provide equivalent or superior performance compared to non-qualified parts.

Q: What is the significance of temperature coefficient ±100ppm/°C versus ±200ppm/°C?

A: Temperature coefficient indicates resistance change per degree Celsius. ±100ppm/°C produces maximum 0.01% resistance change per °C, while ±200ppm/°C produces 0.02% change per °C. For the -55°C to 155°C operating range (210°C span), ±100ppm/°C results in maximum 2.1% drift, and ±200ppm/°C results in maximum 4.2% drift. Selection depends on circuit tolerance requirements.

Q: Does packaging format (Cut Tape vs. Tape & Reel) affect electrical performance?

A: No. Packaging format (Cut Tape, Digi-Reel®, or Tape & Reel) affects only handling, storage, and assembly processes. Electrical specifications, performance, and reliability are identical across packaging formats for the same part number.

Q: Why is inventory quantity relevant for part selection?

A: Inventory availability affects supply chain reliability and lead time. RC0603FR-07820RL (349096 pieces) and RMCF0603FT820R (450115 pieces) offer superior supply security compared to KTR03EZPF8200 (1362 pieces). For production designs, parts with higher inventory reduce supply risk.

Q: Can parts with different manufacturers be mixed in the same circuit board?

A: Yes. All listed substitute parts meet identical electrical specifications, package dimensions, and compliance standards (ROHS3, MSL 1). Mixing manufacturers on the same board is acceptable from an electrical and mechanical standpoint. However, manufacturing processes may introduce minor variations in performance characteristics within specified tolerances.

Q: What does ROHS3 Compliant and REACH Unaffected mean?

A: ROHS3 Compliant indicates the part meets Restriction of Hazardous Substances Directive 2011/65/EU, restricting lead and other hazardous materials. REACH Unaffected indicates the part is not subject to REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulations. Both certifications confirm environmental and regulatory compliance for EU and global markets.

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