BZX884S-C47YL Equivalent & Substitute Parts

Part Overview

The BZX884S-C47YL is a 47 V Zener diode manufactured by Nexperia USA Inc., rated for 365 mW maximum power dissipation in a surface mount SOD-882 package. This component is classified as obsolete, indicating that direct procurement from original inventory may become limited. Equivalent and substitute parts are necessary to ensure design continuity and maintain supply chain reliability for applications requiring 47 V Zener regulation in compact surface mount form factors.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	47	V
Power - Max	365	mW
Tolerance	±6.38%	%
Impedance (Max)	170	Ohms
Current - Reverse Leakage @ Vr	50 nA @ 32.9 V	nA
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	mV
Operating Temperature	150	°C
Package / Case	SOD-882	—
Supplier Device Package	DFN1006BD-2	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the BZX884S-C47YL is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

Voltage - Zener (Nom): 47 V
Power - Max: 365 mW
Package / Case: SOD-882
Supplier Device Package: DFN1006BD-2
Mounting Type: Surface Mount
Operating Temperature: 150°C (TJ)
Impedance (Max): 170 Ohms
Current - Reverse Leakage @ Vr: 50 nA @ 32.9 V
Voltage - Forward (Vf) (Max) @ If: 900 mV @ 10 mA

Variable Parameters (Allowed Substitution Variance):

Tolerance: ±6.38% (main part) to ±1.91% (substitute parts) — tighter tolerance is acceptable
Product Status: Obsolete (main part) to Active (substitute parts) — active status preferred for supply continuity
Packaging: Bulk to Tape & Reel (TR) — packaging format does not affect electrical function
Grade and Qualification: Standard to Automotive with AEC-Q100 — automotive-grade parts meet or exceed standard requirements

All substitute parts listed maintain identical electrical performance and physical compatibility with the BZX884S-C47YL.

Parameter Comparison

Parameter	BZX884S-C47YL (Main)	BZX884S-C47-QYL (Sub 1)	BZX884S-B47-QYL (Sub 2)	BZX8850S-C47YL (Sub 3)
Manufacturer	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.	Nexperia USA Inc.
Voltage - Zener (Nom)	47 V	47 V	47 V	47 V
Tolerance	±6.38%	±1.91%	±1.91%	±5%
Power - Max	365 mW	365 mW	365 mW	365 mW
Impedance (Max)	170 Ohms	170 Ohms	170 Ohms	170 Ohms
Current - Reverse Leakage @ Vr	50 nA @ 32.9 V	50 nA @ 32.9 V	50 nA @ 32.9 V	50 nA @ 32.9 V
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA	900 mV @ 10 mA
Operating Temperature	150°C (TJ)	150°C (TJ)	150°C (TJ)	150°C (TJ)
Package / Case	SOD-882	SOD-882	SOD-882	SOD-882
Supplier Device Package	DFN1006BD-2	DFN1006BD-2	DFN1006BD-2	DFN1006BD-2
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Obsolete
Packaging Format	Bulk	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)
Grade	Standard	Automotive	Automotive	Standard
Qualification	—	AEC-Q100	AEC-Q100	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Primary Recommendation: BZX884S-C47-QYL

The BZX884S-C47-QYL is the manufacturer-recommended substitute for the BZX884S-C47YL. This part is currently in active production status, ensuring long-term supply availability. It carries automotive-grade qualification (AEC-Q100) and features improved tolerance specification (±1.91% versus ±6.38%), providing superior voltage regulation accuracy. All electrical and physical parameters are identical to the main part. The Tape & Reel packaging format is standard for production environments.

Secondary Recommendation: BZX884S-B47-QYL

The BZX884S-B47-QYL is a parametric equivalent offering identical electrical performance and active product status. This part also carries AEC-Q100 automotive qualification and ±1.91% tolerance specification. Selection between BZX884S-C47-QYL and BZX884S-B47-QYL depends on internal part numbering conventions and supplier availability; both are functionally interchangeable.

Tertiary Option: BZX8850S-C47YL

The BZX8850S-C47YL maintains full electrical and physical compatibility but carries obsolete product status. This part is suitable only when existing inventory is available and long-term supply is not a concern. The ±5% tolerance specification is less precise than the primary recommendations but remains within acceptable operational margins for most applications.

Frequently Asked Questions (FAQ)

Q: Can BZX884S-C47-QYL be used as a direct replacement for BZX884S-C47YL?

A: Yes. The BZX884S-C47-QYL is electrically and mechanically identical to the BZX884S-C47YL. All critical parameters—zener voltage, power rating, impedance, leakage current, forward voltage, operating temperature, and package dimensions—are equivalent. The primary differences are product status (active versus obsolete) and tolerance specification (±1.91% versus ±6.38%), both of which favor the substitute part.

Q: What is the difference between BZX884S-C47-QYL and BZX884S-B47-QYL?

A: Both parts are parametric equivalents with identical electrical specifications and active product status. The difference lies in internal Nexperia part numbering (C-grade versus B-grade designation). Both carry AEC-Q100 automotive qualification and ±1.91% tolerance. Selection between these two parts should be based on supplier availability and internal design documentation requirements.

Q: Why is the BZX8850S-C47YL listed as a substitute if it is obsolete?

A: The BZX8850S-C47YL is included because it maintains full electrical and physical compatibility with the main part. However, its obsolete status makes it unsuitable for new designs or long-term production. This part is listed for reference only and should be used only when existing inventory is available and supply continuity is not required.

Q: Does the improved tolerance of substitute parts affect circuit design?

A: The substitute parts feature ±1.91% tolerance compared to the main part's ±6.38%. Tighter tolerance improves voltage regulation accuracy and reduces circuit performance variation. This change is beneficial and does not require design modifications. Circuits designed for the main part will operate within specification with the substitute parts.

Q: Are the substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts use the identical SOD-882 package and DFN1006BD-2 supplier device package. PCB footprints, solder pad layouts, and assembly processes remain unchanged. No PCB redesign is required.

Q: What is the significance of AEC-Q100 qualification on the substitute parts?

A: AEC-Q100 is an automotive industry qualification standard. Parts carrying this qualification have undergone rigorous testing for reliability, temperature cycling, and stress conditions. While the main part does not carry this designation, the substitute parts' AEC-Q100 qualification indicates enhanced reliability and is acceptable for all applications, including non-automotive use.

Q: Can I mix BZX884S-C47-QYL and BZX884S-B47-QYL in the same production run?

A: Yes. Both parts are parametric equivalents with identical electrical performance and physical compatibility. Mixing these parts in the same production run does not affect circuit function or reliability. However, design documentation should specify which part number is approved for use.

Q: What is the difference between bulk packaging and Tape & Reel (TR) packaging?

A: Bulk packaging is used for small quantities and manual assembly. Tape & Reel packaging is standard for automated pick-and-place assembly in production environments. The electrical and physical properties of the component are identical; only the delivery format differs. Tape & Reel packaging is more cost-effective for high-volume production.

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