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BZX8850S-C27YL Equivalent & Substitute Parts
Part Overview
The BZX8850S-C27YL is a 27 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 product status. Identification of equivalent and substitute parts is necessary to support ongoing design requirements, production continuity, and system maintenance where this diode is specified in existing applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Voltage - Zener (Nom) (Vz) | 27 V |
| Tolerance | ±5% |
| Power - Max | 365 mW |
| Impedance (Max) (Zzt) | 80 Ohms |
| Current - Reverse Leakage @ Vr | 50 nA @ 20.4 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 (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the BZX8850S-C27YL are determined by equivalence in the following critical parameters:
Electrical Parameters (Must Match):
- Voltage - Zener (Nom): 27 V
- Power - Max: 365 mW
- Impedance (Max): 80 Ohms
- Operating Temperature: 150°C (TJ)
Mechanical Parameters (Must Match):
- Package / Case: SOD-882
- Mounting Type: Surface Mount
- Supplier Device Package: DFN1006BD-2
Compliance Parameters (Must Match):
- RoHS Status: ROHS3 Compliant
- Moisture Sensitivity Level: 1 (Unlimited)
The substitute parts BZX884S-C27-QYL and BZX884S-B27-QYL satisfy all critical electrical and mechanical parameters. Both substitute parts are active product status, manufactured by the same supplier (Nexperia USA Inc.), and feature improved tolerance specifications (±1.85% versus ±5%) with automotive-grade qualification (AEC-Q100).
Parameter Comparison
| Parameter | BZX8850S-C27YL (Main) | BZX884S-C27-QYL (Substitute) | BZX884S-B27-QYL (Substitute) |
|---|---|---|---|
| Voltage - Zener (Nom) (Vz) | 27 V | 27 V | 27 V |
| Tolerance | ±5% | ±1.85% | ±1.85% |
| Power - Max | 365 mW | 365 mW | 365 mW |
| Impedance (Max) (Zzt) | 80 Ohms | 80 Ohms | 80 Ohms |
| Current - Reverse Leakage @ Vr | 50 nA @ 20.4 V | 50 nA @ 18.9 V | 50 nA @ 18.9 V |
| Voltage - Forward (Vf) (Max) @ If | 900 mV @ 10 mA | 900 mV @ 10 mA | 900 mV @ 10 mA |
| Operating Temperature | 150°C (TJ) | 150°C (TJ) | 150°C (TJ) |
| Package / Case | SOD-882 | SOD-882 | SOD-882 |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active | Active |
| Grade | Standard | Automotive | Automotive |
| Qualification | Not specified | AEC-Q100 | AEC-Q100 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
BZX884S-C27-QYL and BZX884S-B27-QYL are direct functional substitutes for the obsolete BZX8850S-C27YL. Both substitute parts are active product status, ensuring long-term availability and supply chain continuity.
Advantages of substitution:
- Active product status eliminates obsolescence risk
- Improved tolerance specification (±1.85% versus ±5%) provides tighter voltage regulation
- Automotive-grade qualification (AEC-Q100) extends application scope
- Identical electrical performance and package footprint
- Full RoHS3 compliance maintained
Selection between substitutes: BZX884S-C27-QYL and BZX884S-B27-QYL are electrically and mechanically equivalent. Selection between these two parts is determined by application-specific requirements and inventory availability. Both parts are supplied in Tape & Reel (TR) packaging format.
Frequently Asked Questions (FAQ)
Q: Can BZX884S-C27-QYL or BZX884S-B27-QYL be used as direct replacements for BZX8850S-C27YL?
A: Yes. Both substitute parts meet all critical electrical parameters (27 V nominal voltage, 365 mW power rating, 80 Ohms impedance), mechanical specifications (SOD-882 package, surface mount), and compliance requirements (ROHS3, MSL 1). Direct PCB footprint compatibility is maintained.
Q: What is the difference between the two substitute parts?
A: BZX884S-C27-QYL and BZX884S-B27-QYL are electrically and mechanically identical. Both feature 27 V nominal voltage, ±1.85% tolerance, 365 mW power rating, and AEC-Q100 automotive qualification. Selection is based on inventory availability and packaging requirements.
Q: Why do the substitute parts have tighter tolerance (±1.85%) than the main part (±5%)?
A: The substitute parts represent an improved product generation within the BZX884S series. Tighter tolerance specifications provide enhanced voltage regulation performance without changing the core electrical or mechanical characteristics required for substitution.
Q: Are the substitute parts suitable for automotive applications?
A: Yes. Both BZX884S-C27-QYL and BZX884S-B27-QYL carry automotive-grade designation and AEC-Q100 qualification, making them suitable for automotive and high-reliability applications.
Q: What is the packaging format for the substitute parts?
A: Both substitute parts are supplied in Tape & Reel (TR) packaging format, standard for surface mount production environments.
Q: Are there any compliance or regulatory differences?
A: No. All three parts (main and substitutes) are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Moisture sensitivity level is 1 (Unlimited) for all parts.
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