RC1608F333CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F333CS is a 33 kOhms ±1% 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 moisture-resistant construction, RoHS3 compliance, and MSL Level 1 rating. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical dimensions, and environmental ratings to ensure direct circuit board compatibility and performance equivalence.

Key Parameters

Parameter	Specification
Resistance Value	33 kOhms
Tolerance	±1%
Power Rating	0.1W (1/10W)
Package / Case	0603 (1608 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts for the RC1608F333CS are classified into three categories based on functional equivalence and feature alignment:

Direct Equivalents maintain identical electrical parameters (33 kOhms, ±1%, 0.1W), mechanical dimensions (0603 package), and environmental ratings. These parts are interchangeable without circuit modification.

Upgrade Options provide the same core electrical and mechanical specifications but include enhanced features such as Automotive AEC-Q200 qualification or anti-sulfur construction. These parts exceed the baseline requirements and are suitable for applications requiring higher reliability standards.

Similar Parts match all critical electrical and mechanical parameters but may differ in packaging format (Tape & Reel versus Cut Tape) or have discontinued status at specific distributors. Selection depends on procurement and assembly requirements.

The substitution logic is based strictly on the following parameters:

Resistance value: 33 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power rating: 0.1W (exact match required)
Package: 0603 (1608 Metric) (exact match required)
Composition: Thick Film (exact match required)
Temperature coefficient: ±100ppm/°C (exact match required)
Operating temperature: -55°C to 155°C (exact match required)
Moisture sensitivity: MSL 1 (exact match required)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Op Temp	Features	RoHS	MSL	Product Status
RC1608F333CS	Samsung Electro-Mechanics	33 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Moisture Resistant	ROHS3	1	Active
CR0603-FX-3302ELF	Bourns Inc.	33 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Moisture Resistant	ROHS3	1	Active
CRG0603F33K	TE Connectivity Passive Product	33 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	—	ROHS3	1	Active
RC0603FR-0733KL	YAGEO	33 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Moisture Resistant	ROHS3	1	Active
KTR03EZPF3302	Rohm Semiconductor	33 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, High Voltage	ROHS3	1	Active
AC0603FR-0733KL	YAGEO	33 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200, Moisture Resistant	ROHS3	1	Active
AF0603FR-0733KL	YAGEO	33 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Anti-Sulfur, Automotive AEC-Q200	ROHS3	1	Active
CRCW060333K0FKEA	Vishay Dale	33 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	ROHS3	1	Active
CRCW060333K0FKEB	Vishay Dale	33 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	ROHS3	1	Discontinued at DiGi Electronics
CRCW060333K0FKTA	Vishay Dale	33 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	RoHS non-compliant	1	Active
ERJ-3EKF3302V	Panasonic Electronic Components	33 kΩ	±1%	0.1W	0603	±100ppm/°C	-55 to 155°C	Automotive AEC-Q200	ROHS3	1	Active

Engineering Selection Recommendations

For Standard Industrial Applications: CR0603-FX-3302ELF (Bourns Inc.) and CRG0603F33K (TE Connectivity Passive Product) are direct functional equivalents with Active product status and ROHS3 compliance. Both maintain identical electrical specifications and 0603 package dimensions. Selection between these options depends on procurement availability and assembly line compatibility.

For Automotive and High-Reliability Applications: KTR03EZPF3302 (Rohm Semiconductor), AC0603FR-0733KL (YAGEO), AF0603FR-0733KL (YAGEO), CRCW060333K0FKEA (Vishay Dale), and ERJ-3EKF3302V (Panasonic Electronic Components) all carry Automotive AEC-Q200 qualification. These parts are suitable for applications requiring automotive-grade reliability and environmental stress screening. AF0603FR-0733KL provides additional anti-sulfur protection for corrosive environments.

For RoHS3 Compliance Requirements: All recommended substitutes except CRCW060333K0FKTA maintain ROHS3 compliance. CRCW060333K0FKTA is RoHS non-compliant and should not be selected for applications requiring RoHS3 certification.

For Discontinued Part Replacement: CRCW060333K0FKEB is listed as Discontinued at DiGi Electronics. Alternative sources should be evaluated, or selection should shift to active alternatives such as CRCW060333K0FKEA or CRCW060333K0FKTA depending on compliance requirements.

For Packaging Format Considerations: RC0603FR-0733KL (YAGEO) is supplied in Cut Tape (CT) & Digi-Reel® format, while most alternatives are supplied in Tape & Reel (TR) format. Assembly process requirements should determine packaging selection.

Frequently Asked Questions (FAQ)

Q: Can RC0603FR-0733KL be used as a direct replacement for RC1608F333CS? A: Yes. RC0603FR-0733KL matches all critical electrical parameters (33 kOhms, ±1%, 0.1W), mechanical dimensions (0603 package), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and environmental ratings (MSL 1, ROHS3 compliant). The primary difference is packaging format: RC0603FR-0733KL is supplied in Cut Tape & Digi-Reel format, while RC1608F333CS is supplied in Tape & Reel format.

Q: What is the difference between standard and automotive-qualified 33 kOhm 0603 resistors? A: Automotive-qualified parts (KTR03EZPF3302, AC0603FR-0733KL, AF0603FR-0733KL, CRCW060333K0FKEA, ERJ-3EKF3302V) carry AEC-Q200 certification, indicating compliance with automotive reliability and environmental stress testing standards. These parts are suitable for automotive applications and high-reliability industrial systems. Standard parts (CR0603-FX-3302ELF, CRG0603F33K, RC0603FR-0733KL) meet general industrial requirements without automotive qualification.

Q: Are all substitute parts RoHS3 compliant? A: No. CRCW060333K0FKTA is RoHS non-compliant. All other listed substitutes maintain ROHS3 compliance. Verify RoHS compliance requirements for your application before part selection.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity? A: MSL 1 indicates the lowest moisture sensitivity level. Components with MSL 1 have unlimited shelf life and do not require special moisture-control storage or handling procedures. All listed parts maintain MSL 1 rating.

Q: Can I substitute a part with different physical dimensions? A: No. All substitute parts maintain identical 0603 (1608 Metric) package dimensions: 0.063" L x 0.031" W (1.60mm x 0.80mm) with maximum seated height of 0.022" (0.55mm). Minor dimensional variations exist in some Vishay Dale parts (0.061" L x 0.033" W, 1.55mm x 0.85mm height 0.020"), but these remain within 0603 package classification and are mechanically compatible with standard 0603 footprints.

Q: Which substitute offers the best availability? A: AC0603FR-0733KL (YAGEO) has the highest inventory level at 197,364 pieces. ERJ-3EKF3302V (Panasonic Electronic Components) has 191,366 pieces in stock. Both parts are Active status with immediate availability.

Q: Is CRCW060333K0FKEB still available for purchase? A: CRCW060333K0FKEB is listed as Discontinued at DiGi Electronics. Inventory of 20,898 pieces may be available through alternative distributors, but long-term availability is not guaranteed. For new designs, select from Active status alternatives such as CRCW060333K0FKEA or CRCW060333K0FKTA.

Q: What is the temperature coefficient specification and why does it matter? A: All listed parts maintain ±100ppm/°C temperature coefficient, indicating resistance value change of ±0.01% per degree Celsius across the operating temperature range. This specification ensures stable circuit performance across the -55°C to 155°C operating range and is identical across all substitute options.

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