BZX884S-C20YL Equivalent & Substitute Parts

Part Overview

The BZX884S-C20YL is a surface mount Zener diode manufactured by Nexperia USA Inc., rated for 20 V nominal Zener voltage with 365 mW maximum power dissipation. This component is classified as Obsolete, indicating it has been discontinued from active production. The part is packaged in SOD-882 (DFN1006BD-2) configuration and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Due to its obsolete status, equivalent and substitute parts are necessary for ongoing design support, production continuity, and component sourcing. Active alternatives with identical or superior electrical characteristics are available from the same manufacturer.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	20	V
Tolerance	±6%	—
Power - Max	365	mW
Impedance (Max)	55	Ohms
Current - Reverse Leakage @ Vr	50 nA @ 14 V	—
Voltage - Forward (Max) @ If	900 mV @ 10 mA	—
Operating Temperature	150	°C (TJ)
Package / Case	SOD-882	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the BZX884S-C20YL is determined by the following critical parameters:

Electrical Equivalence Criteria:

Voltage - Zener (Nom): 20 V (exact match required)
Power - Max: 365 mW (exact match required)
Impedance (Max): 55 Ohms (exact match required)
Mounting Type: Surface Mount (exact match required)
Package / Case: SOD-882 (exact match required)

Tolerance Variations: Substitute parts may have different tolerance specifications (±2%, ±5%, ±6%) while maintaining identical nominal voltage and power ratings. Tighter tolerances (±2%) represent improved performance characteristics.

Product Status Considerations: Active substitute parts are preferred over obsolete alternatives for new designs and ongoing production. The BZX884S-C20-QYL and BZX884S-B20YL are Active status parts, while BZX8850S-C20YL is Obsolete.

Automotive Grade Qualification: BZX884S-C20-QYL and BZX884S-B20-QYL carry AEC-Q100 automotive qualification and Automotive grade designation, providing enhanced reliability for automotive applications.

Parameter Comparison

Part Number	Manufacturer	Status	Vz (Nom)	Tolerance	Power Max	Impedance Max	Package	Grade	Qualification	Inventory
BZX884S-C20YL	Nexperia USA Inc.	Obsolete	20 V	±6%	365 mW	55 Ohms	SOD-882	—	—	18095 Pcs
BZX884S-C20-QYL	Nexperia USA Inc.	Active	20 V	±2%	365 mW	55 Ohms	SOD-882	Automotive	AEC-Q100	10905 Pcs
BZX884S-B20-QYL	Nexperia USA Inc.	Active	20 V	±2%	365 mW	55 Ohms	SOD-882	Automotive	AEC-Q100	10898 Pcs
BZX884S-B20YL	Nexperia USA Inc.	Active	20 V	±2%	365 mW	55 Ohms	SOD-882	—	—	20850 Pcs
BZX8850S-C20YL	Nexperia USA Inc.	Obsolete	20 V	±5%	365 mW	55 Ohms	SOD-882	—	—	10936 Pcs

Engineering Selection Recommendations

Primary Recommendation: BZX884S-C20-QYL

The BZX884S-C20-QYL is the manufacturer-recommended substitute for BZX884S-C20YL. This part is Active status, ensuring long-term availability and production support. It features improved tolerance specification (±2% versus ±6%), Automotive grade designation, and AEC-Q100 qualification. These characteristics make it suitable for automotive and high-reliability applications requiring tighter voltage regulation.

Secondary Recommendation: BZX884S-B20YL

The BZX884S-B20YL is an Active status parametric equivalent with ±2% tolerance and the highest inventory availability (20850 Pcs). This part provides improved tolerance performance over the original BZX884S-C20YL while maintaining identical electrical and mechanical specifications. It is suitable for general industrial and consumer applications.

Alternative Recommendation: BZX884S-B20-QYL

The BZX884S-B20-QYL is an Active status part with Automotive grade and AEC-Q100 qualification. It provides the same electrical performance as BZX884S-C20-QYL with equivalent reliability certifications, offering design flexibility for automotive applications.

Avoid: BZX8850S-C20YL

The BZX8850S-C20YL is Obsolete status and should not be selected for new designs or ongoing production. Although it meets electrical requirements, its discontinued status creates supply chain risk.

Frequently Asked Questions (FAQ)

Q: Can BZX884S-C20-QYL be used as a direct replacement for BZX884S-C20YL?

A: Yes. The BZX884S-C20-QYL is electrically and mechanically compatible with BZX884S-C20YL. Both parts share identical nominal Zener voltage (20 V), maximum power rating (365 mW), impedance (55 Ohms), and SOD-882 package configuration. The BZX884S-C20-QYL features improved tolerance (±2% versus ±6%) and Active product status.

Q: What is the difference between BZX884S-C20-QYL and BZX884S-B20YL?

A: Both parts are Active status with ±2% tolerance, 20 V nominal Zener voltage, and 365 mW power rating. The primary difference is that BZX884S-C20-QYL carries Automotive grade and AEC-Q100 qualification, making it suitable for automotive applications. BZX884S-B20YL is suitable for general industrial and consumer applications. Both are pin-compatible and electrically equivalent.

Q: Why does BZX884S-C20YL have ±6% tolerance while substitutes have ±2%?

A: Tolerance specification reflects manufacturing process capability and quality control standards. The substitute parts with ±2% tolerance represent improved manufacturing precision and tighter voltage regulation performance. This is a beneficial characteristic for applications requiring more stable Zener voltage.

Q: Is the SOD-882 package identical across all listed parts?

A: Yes. All listed parts use the SOD-882 package (DFN1006BD-2 supplier device package). They are mechanically and electrically compatible for PCB assembly and soldering processes.

Q: Can I use BZX8850S-C20YL as a substitute?

A: BZX8850S-C20YL meets electrical and mechanical requirements but is Obsolete status. It should not be selected for new designs or production due to supply chain discontinuation risk. Active alternatives are available.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed parts, including the original BZX884S-C20YL and all substitutes, are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Q: Which substitute part has the best availability?

A: BZX884S-B20YL has the highest inventory availability at 20850 Pcs. BZX884S-C20-QYL and BZX884S-B20-QYL have comparable availability at approximately 10900 Pcs each.

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