CL21B333KBANNWC Equivalent & Substitute Parts

Part Overview

The CL21B333KBANNWC is a 0.033 µF ±10% 50V ceramic capacitor manufactured by Samsung Electro-Mechanics in the 0805 (2012 Metric) package with X7R temperature coefficient. This multilayer ceramic capacitor (MLCC) is classified as Active product status and is suitable for general-purpose applications requiring surface mount technology.

Substitute parts are necessary when the original manufacturer part becomes unavailable, when alternative sourcing improves supply chain resilience, or when design requirements permit upgraded electrical specifications while maintaining mechanical compatibility.

Key Parameters

Parameter	Value	Significance for Substitution
Capacitance	0.033 µF	Must match exactly for circuit function
Voltage Rating	50V	Minimum requirement; higher ratings acceptable
Tolerance	±10%	Acceptable range; ±5% is superior
Temperature Coefficient	X7R	Must match for temperature stability
Package	0805 (2012 Metric)	Must match for PCB footprint compatibility
Operating Temperature	-55°C ~ 125°C	Must meet or exceed application range
Mounting Type	Surface Mount, MLCC	Must match assembly process
RoHS Status	ROHS3 Compliant	Regulatory requirement
MSL Rating	1 (Unlimited)	Storage and handling requirement

Substitute Part Grouping Explanation

Substitution logic is based on the following allowed parameters:

Primary Matching Criteria (Non-Negotiable):

Capacitance: 0.033 µF (exact match required)
Temperature Coefficient: X7R (exact match required)
Package: 0805 (2012 Metric) (exact match required)
Mounting Type: Surface Mount, MLCC (exact match required)
Operating Temperature Range: -55°C ~ 125°C (minimum requirement)

Secondary Matching Criteria (Upgradeable):

Voltage Rating: 50V minimum (100V, 200V acceptable as upgrades)
Tolerance: ±10% acceptable (±5% is superior upgrade)
RoHS Status: ROHS3 Compliant (required)
MSL Rating: 1 (Unlimited) (required)

Substitute Categories:

Direct Equivalents (Same Electrical Specifications): Parts matching all primary and secondary criteria with identical voltage and tolerance specifications.

Upgraded Substitutes (Enhanced Specifications): Parts with improved voltage ratings or tighter tolerance while maintaining all primary matching criteria. These provide superior performance margins.

Obsolete/Limited Availability Substitutes: Parts with matching specifications but discontinued or limited production status. Use only when direct equivalents are unavailable.

Parameter Comparison

Manufacturer	Part Number	Capacitance	Voltage	Tolerance	Temp Coeff	Package	Product Status	Thickness
Samsung Electro-Mechanics	CL21B333KBANNWC	0.033 µF	50V	±10%	X7R	0805	Active	0.75mm
KEMET	C0805C333K5RAC7800	0.033 µF	50V	±10%	X7R	0805	Active	0.88mm
YAGEO	CC0805KRX7R9BB333	0.033 µF	50V	±10%	X7R	0805	Active	0.85mm
KYOCERA AVX	KGM21NR71H333KT	0.033 µF	50V	±10%	X7R	0805	Active	1.00mm
KEMET	C0805C333J5RAC7800	0.033 µF	50V	±5%	X7R	0805	Active	0.88mm
KEMET	C0805C333K1RAC7800	0.033 µF	100V	±10%	X7R	0805	Active	1.00mm
KEMET	C0805C333J1RAC7800	0.033 µF	100V	±5%	X7R	0805	Active	1.00mm
KEMET	C0805C333K2RAC7800	0.033 µF	200V	±10%	X7R	0805	Active	1.10mm
TDK Corporation	CGJ4J2X7R1H333K125AA	0.033 µF	50V	±10%	X7R	0805	Obsolete	1.45mm
TDK Corporation	CGJ4J2X7R2A333K125AA	0.033 µF	100V	±10%	X7R	0805	Obsolete	1.45mm
TDK Corporation	C2012X7R2A333K125AA	0.033 µF	100V	±10%	X7R	0805	Not For New Designs	1.45mm

Engineering Selection Recommendations

Recommended Direct Equivalents (Active Status, Identical Specifications):

KEMET C0805C333K5RAC7800 - Preferred for high-volume applications. Active product status with 137,330 pcs inventory. Identical electrical specifications. Thickness 0.88mm within acceptable PCB clearance margins.
YAGEO CC0805KRX7R9BB333 - Alternative source for supply chain diversification. Active product status with 1,783 pcs inventory. Identical electrical specifications. Thickness 0.85mm.
KYOCERA AVX KGM21NR71H333KT - Established supplier option. Active product status with 53,287 pcs inventory. Identical electrical specifications. Thickness 1.00mm.

Recommended Upgraded Substitutes (Enhanced Performance):

KEMET C0805C333J5RAC7800 - Superior tolerance (±5% vs ±10%). Active product status. Maintains 50V rating. Recommended when tighter capacitance tolerance improves circuit performance.
KEMET C0805C333K1RAC7800 - Upgraded voltage rating (100V vs 50V). Active product status with 13,945 pcs inventory. Provides additional safety margin for voltage transients. Identical tolerance.
KEMET C0805C333J1RAC7800 - Combined upgrade: 100V rating with ±5% tolerance. Active product status with 8,959 pcs inventory. Maximum performance specification available.
KEMET C0805C333K2RAC7800 - Maximum voltage rating (200V). Active product status with 23,589 pcs inventory. For applications requiring highest voltage margin.

Not Recommended for New Designs:

TDK CGJ4J2X7R1H333K125AA - Obsolete status
TDK CGJ4J2X7R2A333K125AA - Obsolete status
TDK C2012X7R2A333K125AA - Not For New Designs status

All substitute parts maintain ROHS3 compliance, MSL 1 (Unlimited) rating, and -55°C ~ 125°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can I substitute CL21B333KBANNWC with a higher voltage-rated part?

A: Yes. The 50V rating is a minimum requirement. Parts rated 100V or 200V are electrically compatible and provide additional safety margin. Verify PCB layout accommodates increased thickness (up to 1.10mm for 200V variants).

Q: What is the difference between ±10% and ±5% tolerance parts?

A: Both are acceptable substitutes. ±5% tolerance provides tighter capacitance accuracy, beneficial for precision circuits. ±10% tolerance is standard for general-purpose applications. Circuit function remains identical for both.

Q: Are KEMET, YAGEO, KYOCERA AVX, and TDK parts mechanically interchangeable?

A: Yes, all substitute parts use identical 0805 (2012 Metric) package footprint. Thickness varies between 0.75mm and 1.45mm. Verify PCB clearance for components with thickness exceeding 1.00mm.

Q: Why are some TDK parts listed as Obsolete or Not For New Designs?

A: These parts are discontinued or in end-of-life status. Use only when active alternatives are unavailable. Inventory may be limited.

Q: Can I use these substitutes in automotive applications?

A: The main part (CL21B333KBANNWC) is rated for general-purpose applications. TDK CGJ series parts carry AEC-Q200 automotive qualification. Verify application requirements before selecting automotive-qualified alternatives.

Q: What is MSL 1 (Unlimited) rating?

A: MSL 1 indicates Moisture Sensitivity Level 1, requiring no special moisture control during storage or handling. Parts can be stored indefinitely without desiccant packaging.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, meeting regulatory requirements for lead-free and restricted substance standards.

Q: Which substitute offers the best supply availability?

A: KEMET C0805C333K5RAC7800 has the highest inventory (137,330 pcs), followed by KYOCERA AVX KGM21NR71H333KT (53,287 pcs). Both are Active status with consistent availability.

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