RC1608F3162CS Equivalent & Substitute Parts Reference

Part Overview

The RC1608F3162CS is a 31.6 kOhms ±1% thick film chip resistor manufactured by Samsung Electro-Mechanics, rated at 0.1W (1/10W) power dissipation in a 0603 (1608 Metric) surface mount package. This component is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). The part is designed for general-purpose applications requiring precision resistive elements with moisture resistance and stable performance across the -55°C to 155°C operating temperature range.

Equivalent and substitute parts are necessary when the primary manufacturer part becomes unavailable, when supply chain optimization is required, or when design specifications allow for alternative qualified sources meeting identical electrical and mechanical parameters.

Key Parameters

Parameter	Value	Specification Basis
Resistance Value	31.6 kOhms	Core electrical specification
Tolerance	±1%	Precision grade requirement
Power Rating	0.1W (1/10W)	Thermal dissipation capacity
Package / Case	0603 (1608 Metric)	Physical form factor and PCB footprint
Composition	Thick Film	Manufacturing technology
Temperature Coefficient	±100ppm/°C	Stability specification
Operating Temperature Range	-55°C to 155°C	Environmental operating limits
Terminations	2	Connection points
RoHS Status	ROHS3 Compliant	Regulatory compliance
Moisture Sensitivity Level	1 (Unlimited)	Handling and storage requirements

Substitute Part Grouping Explanation

Substitution logic for the RC1608F3162CS is based on strict electrical and mechanical parameter matching. All substitute parts must satisfy the following criteria:

Core Matching Parameters:

Resistance value: 31.6 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power rating: 0.1W / 1/10W (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 range: -55°C to 155°C (exact match required)
Number of terminations: 2 (exact match required)

Compliance Parameters:

RoHS Status: ROHS3 Compliant (preferred for new designs)
Moisture Sensitivity Level: 1 (Unlimited) (exact match required)
REACH Status: REACH Unaffected or REACH Affected (noted for regulatory tracking)

Substitute parts are categorized as Direct Manufacturer Substitutes (electrically and mechanically identical) or Similar Manufacturer Substitutes (identical core parameters with additional features such as automotive AEC-Q200 qualification or anti-sulfur treatment).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	RoHS Status	MSL	Features
RC1608F3162CS	Samsung Electro-Mechanics	31.6 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	1	Moisture Resistant
CR0603-FX-3162ELF	Bourns Inc.	31.6 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	1	Moisture Resistant
RC0603FR-0731K6L	YAGEO	31.6 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	1	Moisture Resistant
AC0603FR-0731K6L	YAGEO	31.6 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	1	Automotive AEC-Q200, Moisture Resistant
CRCW060331K6FKEA	Vishay Dale	31.6 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	1	Automotive AEC-Q200
CRCW060331K6FKTA	Vishay Dale	31.6 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	RoHS Non-compliant	1	Automotive AEC-Q200
ERJ-3EKF3162V	Panasonic Electronic Components	31.6 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	1	Automotive AEC-Q200
ERJ-S03F3162V	Panasonic Electronic Components	31.6 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	1	Anti-Sulfur, Automotive AEC-Q200
RMCF0603FT31K6	Stackpole Electronics Inc	31.6 kΩ	±1%	0.1	0603	±100ppm/°C	-55 to 155°C	ROHS3	1	Automotive AEC-Q200

Engineering Selection Recommendations

For General-Purpose Applications (Non-Automotive):

The RC1608F3162CS, CR0603-FX-3162ELF, RC0603FR-0731K6L, and RMCF0603FT31K6 are suitable for applications without automotive qualification requirements. All four parts maintain ROHS3 compliance and identical electrical specifications. Selection among these options is based on manufacturer availability and supply chain considerations.

For Automotive Applications (AEC-Q200 Required):

When automotive-grade qualification is specified, the following parts meet AEC-Q200 standards:

AC0603FR-0731K6L (YAGEO, ROHS3 Compliant)
CRCW060331K6FKEA (Vishay Dale, ROHS3 Compliant)
ERJ-3EKF3162V (Panasonic, ROHS3 Compliant)
ERJ-S03F3162V (Panasonic, ROHS3 Compliant, Anti-Sulfur feature)
RMCF0603FT31K6 (Stackpole, ROHS3 Compliant)

Regulatory Compliance Consideration:

CRCW060331K6FKTA is RoHS non-compliant and REACH Affected. This part is not recommended for new designs targeting ROHS3 compliance or applications subject to REACH regulations.

High-Inventory Availability:

RMCF0603FT31K6 (Stackpole Electronics Inc) maintains the highest inventory level at 933,776 pieces, providing supply chain security for high-volume production requirements.

Frequently Asked Questions (FAQ)

Q1: Can I substitute RC1608F3162CS with any of the listed parts without circuit redesign?

A: Yes. All listed substitute parts share identical core electrical parameters (31.6 kOhms ±1%, 0.1W, ±100ppm/°C, -55°C to 155°C operating range) and the same 0603 package footprint. Direct substitution is electrically and mechanically compatible at the component level.

Q2: What is the difference between "Direct Manufacturer Substitutes" and "Similar Manufacturer Substitutes"?

A: Direct Manufacturer Substitutes (CR0603-FX-3162ELF, RC0603FR-0731K6L) provide identical specifications without additional features. Similar Manufacturer Substitutes include additional qualifications such as automotive AEC-Q200 certification or anti-sulfur treatment, which may be required for specific application environments but do not affect basic electrical compatibility.

Q3: Which substitute part should I select for automotive applications?

A: For automotive applications requiring AEC-Q200 qualification, select from: AC0603FR-0731K6L, CRCW060331K6FKEA, ERJ-3EKF3162V, ERJ-S03F3162V, or RMCF0603FT31K6. All five parts meet AEC-Q200 standards. RMCF0603FT31K6 offers the highest inventory availability.

Q4: Is CRCW060331K6FKTA a suitable replacement for new designs?

A: CRCW060331K6FKTA is not recommended for new designs. This part is RoHS non-compliant and REACH Affected, which conflicts with current regulatory requirements for most commercial and industrial applications. Use CRCW060331K6FKEA (ROHS3 Compliant) instead.

Q5: What does MSL 1 (Unlimited) mean for handling and storage?

A: MSL 1 (Unlimited) indicates that the component has unlimited shelf life and does not require special moisture-controlled storage conditions. These parts can be stored at standard ambient conditions without baking or desiccant packaging requirements prior to assembly.

Q6: Are there physical dimension differences between substitute parts?

A: Minor dimensional variations exist within the 0603 package specification. The main part RC1608F3162CS measures 0.063" L × 0.031" W (1.60mm × 0.80mm) with 0.022" max seated height. CRCW060331K6FKEA and CRCW060331K6FKTA have slightly different dimensions (0.061" L × 0.033" W, 0.020" max height) and RMCF0603FT31K6 measures 0.061" L × 0.031" W. These variations remain within standard 0603 footprint tolerances and do not require PCB layout modifications.

Q7: Which substitute offers anti-sulfur protection?

A: ERJ-S03F3162V (Panasonic Electronic Components) includes anti-sulfur treatment in addition to AEC-Q200 automotive qualification. This feature is beneficial for applications in environments with elevated sulfur compound exposure.

Q8: Can I mix different manufacturer parts in the same production batch?

A: Yes. All substitute parts meet identical electrical and mechanical specifications. However, for traceability and quality control purposes, it is standard practice to maintain consistent manufacturer sourcing within a single production lot when possible.

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