CL21B474KBFNFNG Equivalent & Substitute Parts

Part Overview

The CL21B474KBFNFNG is a 0.47 µF ±10% 50V ceramic capacitor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) surface mount package with X7R temperature coefficient. This multilayer ceramic capacitor (MLCC) is classified as Active product status with general purpose applications. The part is ROHS3 compliant and REACH unaffected, with MSL 1 rating indicating unlimited moisture sensitivity protection.

Equivalent and substitute parts are necessary when the primary part experiences supply constraints, inventory limitations, or when design requirements permit functional alternatives from different manufacturers while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Significance for Substitution
Capacitance	0.47 µF	Must match exactly for circuit function
Voltage Rating	50V	Must match or exceed; lower ratings are not acceptable
Tolerance	±10%	Determines acceptable capacitance variation; tighter tolerances are upgrades
Temperature Coefficient	X7R	Must match for temperature stability across -55°C to 125°C operating range
Package / Case	0805 (2012 Metric)	Must match for PCB footprint compatibility
Mounting Type	Surface Mount, MLCC	Must match for assembly process compatibility
Size / Dimension	0.079" L x 0.049" W (2.00mm x 1.25mm)	Physical footprint must be compatible with PCB layout
Thickness (Max)	0.053" (1.35mm) nominal	Critical for clearance in dense PCB assemblies
RoHS Status	ROHS3 Compliant	Regulatory requirement for most applications
MSL Rating	1 (Unlimited)	Moisture sensitivity level; all substitutes must match

Substitute Part Grouping Explanation

Substitute parts for the CL21B474KBFNFNG are categorized based on strict adherence to the following critical parameters:

Mandatory Matching Parameters:

Capacitance: 0.47 µF (exact match required)
Voltage Rating: 50V (exact match required)
Temperature Coefficient: X7R (exact match required)
Package / Case: 0805 (2012 Metric) (exact match required)
Mounting Type: Surface Mount, MLCC (exact match required)
RoHS Status: ROHS3 Compliant (exact match required)
MSL Rating: 1 (Unlimited) (exact match required)
Operating Temperature: -55°C to 125°C (exact match required)

Allowable Variation Parameters:

Tolerance: ±10% (baseline); ±5% represents an upgrade
Thickness: Nominal 0.053" (1.35mm); minor variations acceptable within mechanical constraints
Packaging Format: Cut Tape (CT), Digi-Reel®, or Tape & Reel (TR) formats are interchangeable
Manufacturer: Samsung Electro-Mechanics, KEMET, Murata Electronics, KYOCERA AVX, Taiyo Yuden

Substitution Categories:

Parametric Equivalents (Samsung Electro-Mechanics): Parts with identical electrical specifications and packaging, differing only in packaging format or internal manufacturing codes.
Direct Equivalents (Multi-Manufacturer): Parts from alternative manufacturers meeting all mandatory parameters with identical electrical performance.
Upgrade Parts: Parts with improved tolerance (±5% vs ±10%) or enhanced ratings (AEC-Q200 automotive qualification).
Legacy/Discontinued Parts: Parts with Active product status but not recommended for new designs.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Capacitance	Tolerance	Voltage	Temp Coeff	Package	Thickness (Max)	Product Status	Packaging Format
CL21B474KBFNFNG	Samsung Electro-Mechanics	0.47 µF	±10%	50V	X7R	0805	0.053" (1.35mm)	Active	Bulk
CL21B474KBFVPNE	Samsung Electro-Mechanics	0.47 µF	±10%	50V	X7R	0805	0.053" (1.35mm)	Active	Cut Tape (CT) & Digi-Reel®
CL21B474KBFNFNE	Samsung Electro-Mechanics	0.47 µF	±10%	50V	X7R	0805	0.053" (1.35mm)	Active	Cut Tape (CT) & Digi-Reel®
CL21B474KBFNNNE	Samsung Electro-Mechanics	0.47 µF	±10%	50V	X7R	0805	0.053" (1.35mm)	Active	Cut Tape (CT) & Digi-Reel®
CL21B474KBFNNNG	Samsung Electro-Mechanics	0.47 µF	±10%	50V	X7R	0805	0.053" (1.35mm)	Active	Cut Tape (CT) & Digi-Reel®
C0805C474K5RAC7800	KEMET	0.47 µF	±10%	50V	X7R	0805	0.043" (1.10mm)	Active	Tape & Reel (TR)
GRM21BR71H474KA88K	Murata Electronics	0.47 µF	±10%	50V	X7R	0805	0.053" (1.35mm)	Active	Tape & Reel (TR)
GRM21BR71H474KA88L	Murata Electronics	0.47 µF	±10%	50V	X7R	0805	0.053" (1.35mm)	Active	Cut Tape (CT) & Digi-Reel®
KGM21AR71H474KU	KYOCERA AVX	0.47 µF	±10%	50V	X7R	0805	0.057" (1.45mm)	Active	Tape & Reel (TR)
UMK212B7474KG-T	Taiyo Yuden	0.47 µF	±10%	50V	X7R	0805	0.053" (1.35mm)	Not For New Designs	Tape & Reel (TR)
C0805C474J5RAC7800	KEMET	0.47 µF	±5%	50V	X7R	0805	0.043" (1.10mm)	Active	Tape & Reel (TR)

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs):

The following parts are recommended as direct substitutes for the CL21B474KBFNFNG due to Active product status and full compliance with all mandatory parameters:

CL21B474KBFVPNE (Samsung Electro-Mechanics): Identical electrical specifications with automotive-grade AEC-Q200 rating. Suitable for applications requiring enhanced reliability qualification.
CL21B474KBFNFNE (Samsung Electro-Mechanics): Parametric equivalent with identical specifications, available in Cut Tape format.
CL21B474KBFNNNG (Samsung Electro-Mechanics): Parametric equivalent with highest inventory availability (369,511 pcs).
C0805C474K5RAC7800 (KEMET): Direct equivalent with reduced thickness (0.043" vs 0.053"), beneficial for space-constrained PCB designs.
GRM21BR71H474KA88K (Murata Electronics): Direct equivalent with standard thickness profile.
GRM21BR71H474KA88L (Murata Electronics): Direct equivalent available in Cut Tape format.
KGM21AR71H474KU (KYOCERA AVX): Direct equivalent with slightly increased thickness (0.057"), acceptable within mechanical tolerances.

Upgrade Option:

C0805C474J5RAC7800 (KEMET): Offers improved tolerance specification (±5% vs ±10%), providing tighter capacitance control. Suitable for applications requiring enhanced precision.

Legacy Part (Not Recommended for New Designs):

UMK212B7474KG-T (Taiyo Yuden): Marked as "Not For New Designs" despite meeting all electrical parameters. Use only for replacement in existing production or maintenance applications.

Selection Criteria:

Inventory Availability: CL21B474KBFNNNG offers maximum stock (369,511 pcs).
Space Constraints: C0805C474K5RAC7800 provides minimum thickness (0.043").
Automotive Applications: CL21B474KBFVPNE includes AEC-Q200 qualification.
Precision Requirements: C0805C474J5RAC7800 provides ±5% tolerance upgrade.
Packaging Format: Select based on assembly process requirements (bulk, cut tape, or tape & reel).

All recommended substitutes maintain ROHS3 compliance, REACH unaffected status, and MSL 1 rating identical to the primary part.

Frequently Asked Questions (FAQ)

Q1: Can I substitute CL21B474KBFNFNG with a part having different capacitance value?

A: No. The capacitance value of 0.47 µF is a critical electrical parameter determined by circuit design requirements. Substitution is limited to parts with identical 0.47 µF capacitance. Different capacitance values will alter circuit performance and are not acceptable substitutes.

Q2: What is the difference between the Samsung parametric equivalents (CL21B474KBFNFNE, CL21B474KBFNNNE, CL21B474KBFNNNG)?

A: These parts are parametric equivalents from Samsung Electro-Mechanics with identical electrical specifications (0.47 µF, ±10%, 50V, X7R, 0805). The differences are in packaging format and internal manufacturing codes. CL21B474KBFNFNG is supplied in bulk format, while the others are available in Cut Tape (CT) & Digi-Reel® format. Selection depends on assembly process requirements.

Q3: Why does C0805C474K5RAC7800 have a different thickness (0.043" vs 0.053")?

A: Thickness variation results from different internal dielectric layer configurations between manufacturers while maintaining identical electrical specifications. The reduced thickness of the KEMET part (0.043") is beneficial for PCB assemblies with height constraints. This variation is within acceptable mechanical tolerances for 0805 package specifications and does not affect electrical performance.

Q4: Is CL21B474KBFVPNE a better choice than the standard CL21B474KBFNFNG?

A: CL21B474KBFVPNE is an upgrade option with AEC-Q200 automotive qualification, indicating enhanced reliability testing and suitability for automotive applications. For general purpose applications, both parts are functionally equivalent. Selection depends on application requirements and whether automotive-grade qualification is necessary.

Q5: Can I use C0805C474J5RAC7800 (±5% tolerance) as a direct replacement?

A: Yes. C0805C474J5RAC7800 is a direct substitute with improved tolerance specification (±5% vs ±10%). The tighter tolerance represents an upgrade that provides better capacitance accuracy. This part is fully compatible and suitable for applications requiring enhanced precision.

Q6: Why is UMK212B7474KG-T marked as "Not For New Designs"?

A: UMK212B7474KG-T is a legacy part from Taiyo Yuden with Active product status but designated "Not For New Designs" by the manufacturer. This designation indicates the part is being phased out or superseded by newer alternatives. Use this part only for replacement in existing production runs or maintenance of fielded equipment. For new designs, select from the recommended primary substitutes.

Q7: What is the significance of the X7R temperature coefficient?

A: X7R temperature coefficient specifies that capacitance variation remains within ±15% across the operating temperature range of -55°C to 125°C. This stability is critical for circuit performance across environmental conditions. All substitute parts must have identical X7R specification; alternative temperature coefficients (such as Y5V or Z5U) are not acceptable substitutes.

Q8: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the regulatory status of the primary part CL21B474KBFNFNG. This compliance is mandatory for most applications and is maintained across all recommended substitutes.

Q9: What is MSL 1 rating and why must it match?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited moisture sensitivity protection, meaning the part requires no special moisture control during storage or handling. All substitute parts maintain MSL 1 rating, ensuring identical handling and storage requirements. This consistency simplifies supply chain management and assembly processes.

Q10: Can I mix different manufacturers' parts in the same PCB assembly?

A: Yes. All recommended substitute parts meet identical electrical and mechanical specifications, allowing mixed-manufacturer sourcing within the same assembly. This flexibility is beneficial for supply chain optimization and inventory management. However, verify that your quality assurance procedures permit multi-source component usage.

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