BZX884S-C56YL Equivalent & Substitute Parts

Part Overview

The BZX884S-C56YL is a surface mount Zener diode manufactured by Nexperia USA Inc., rated for 56 V nominal Zener voltage with 365 mW maximum power dissipation. This component is packaged in SOD-882 (DFN1006BD-2) and is classified as obsolete. Due to its obsolete product status, equivalent and substitute parts with active availability are necessary for ongoing design support and production continuity. All substitute parts maintain identical electrical performance characteristics and mechanical compatibility within the SOD-882 package family.

Key Parameters

Parameter	Value	Unit
Voltage - Zener (Nom)	56	V
Power - Max	365	mW
Tolerance	±5%	—
Impedance (Max)	200	Ohms
Current - Reverse Leakage @ Vr	50 nA @ 39.2 V	—
Voltage - Forward (Vf) (Max) @ If	900 mV @ 10 mA	—
Operating Temperature	150	°C (TJ)
Package / Case	SOD-882	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the BZX884S-C56YL is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Substitution Parameters:

Voltage - Zener (Nom): 56 V
Power - Max: 365 mW
Package / Case: SOD-882 (DFN1006BD-2)
Mounting Type: Surface Mount
Impedance (Max): 200 Ohms
Current - Reverse Leakage @ Vr: 50 nA @ 39.2 V
Voltage - Forward (Vf) (Max) @ If: 900 mV @ 10 mA
Operating Temperature: 150°C (TJ)

All substitute parts listed maintain these parameters identically. Tolerance variations (±5% versus ±1.96%) do not disqualify substitution; they represent tighter specification grades. Product status differences (obsolete versus active) indicate availability and supply chain continuity rather than functional incompatibility.

Parameter Comparison

Part Number	Manufacturer	Vz (Nom)	Power (Max)	Tolerance	Impedance (Max)	Package	Product Status	Grade	Qualification
BZX884S-C56YL	Nexperia USA Inc.	56 V	365 mW	±5%	200 Ohms	SOD-882	Obsolete	—	—
BZX884S-C56-QYL	Nexperia USA Inc.	56 V	365 mW	±1.96%	200 Ohms	SOD-882	Active	Automotive	AEC-Q100
BZX884S-B56-QYL	Nexperia USA Inc.	56 V	365 mW	±1.96%	200 Ohms	SOD-882	Active	Automotive	AEC-Q100
BZX8850S-C56YL	Nexperia USA Inc.	56 V	365 mW	±5%	200 Ohms	SOD-882	Obsolete	—	—

Engineering Selection Recommendations

Primary Recommendation: BZX884S-C56-QYL

The BZX884S-C56-QYL is the manufacturer-recommended substitute for the obsolete BZX884S-C56YL. This part is active in production, carries automotive-grade qualification (AEC-Q100), and features tighter tolerance specification (±1.96% versus ±5%). All electrical and mechanical parameters are identical to the original part. Packaging is Tape & Reel (TR) format with 11,087 units in stock.

Secondary Recommendation: BZX884S-B56-QYL

The BZX884S-B56-QYL is a parametric equivalent offering identical electrical performance and automotive qualification. This part differs only in internal circuit design (B-grade versus C-grade), which does not affect external electrical characteristics. It is active in production with 10,130 units in stock.

Alternative: BZX8850S-C56YL

The BZX8850S-C56YL maintains identical electrical specifications and tolerance to the original part but is classified as obsolete. This part is suitable only when active production parts are unavailable and legacy inventory must be maintained. It is not recommended for new designs.

All substitute parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can BZX884S-C56-QYL directly replace BZX884S-C56YL in existing designs?

A: Yes. Both parts share identical Zener voltage (56 V), maximum power (365 mW), impedance (200 Ohms), reverse leakage current, forward voltage, operating temperature, and SOD-882 package. The BZX884S-C56-QYL features tighter tolerance (±1.96% versus ±5%), which is a performance improvement.

Q: What is the difference between BZX884S-C56-QYL and BZX884S-B56-QYL?

A: Both parts are parametric equivalents with identical electrical specifications. The difference is internal circuit design grade (C-grade versus B-grade). External electrical performance, package, and mounting characteristics are identical. Both carry AEC-Q100 automotive qualification.

Q: Why is BZX884S-C56YL marked as obsolete?

A: Product status reflects manufacturer lifecycle decisions. Obsolete status indicates the part is no longer in active production. Substitute parts with active status provide supply chain continuity and ongoing manufacturing support.

Q: Are all substitute parts available in the same packaging format?

A: The BZX884S-C56YL is supplied in standard packaging. Substitute parts BZX884S-C56-QYL and BZX884S-B56-QYL are supplied in Tape & Reel (TR) format. BZX8850S-C56YL is also available in Tape & Reel format. All parts use the same SOD-882 package case and DFN1006BD-2 supplier device package.

Q: Do substitute parts meet the same compliance standards?

A: All substitute parts are ROHS3 compliant and REACH unaffected. The active production parts (BZX884S-C56-QYL and BZX884S-B56-QYL) carry AEC-Q100 automotive qualification, providing additional quality assurance for automotive applications.

Q: Can BZX8850S-C56YL be used as a substitute?

A: BZX8850S-C56YL is a parametric equivalent with identical electrical specifications and tolerance. However, it is classified as obsolete. It is suitable only for applications requiring legacy inventory maintenance and is not recommended for new designs or ongoing production.

Q: What inventory levels are available for each substitute?

A: BZX884S-C56-QYL: 11,087 units in stock. BZX884S-B56-QYL: 10,130 units in stock. BZX8850S-C56YL: 11,044 units in stock. All parts are new original stock.

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