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Nexperia USA Inc. BZX884S-B33-QYL
- Part No.:
- BZX884S-B33-QYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-882
- Datasheet:
-
BZX884S-B33-QYL.pdf
- Description:
- DIODE ZENER 33V 365MW DFN1006BD
- Quantity:
- Payment:
- Shipping:
Inventory:39,399
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Product details
Overview
BZX884S-B33-QYL from Nexperia is a 33 V ±2 % Zener voltage regulator diode in an ultra-small DFN1006BD-2 (SOD882BD) leadless SMD package with side-wettable flanks. It delivers precise voltage reference and overvoltage clamping in space-constrained automotive and industrial circuits, with 35.3–36.7 V nominal Zener voltage at 2 mA, 75 Ω typical differential resistance, and AEC-Q101 qualification.
For engineers reviewing the BZX884S-B33-QYL datasheet, BZX884S-B33-QYL pinout, BZX884S-B33-QYL application, or BZX884S-B33-QYL equivalent, key selection criteria include its 33 V regulation tolerance, 365 mW power dissipation on FR4, side-wettable flank solderability, −55 °C to +150 °C operating range, and cathode-anode polarity marking for automated optical inspection.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across load variations, with a temperature coefficient of +35 mV/K at IZ = 2 mA - enabling predictable drift compensation in bias networks. Its low 75 Ω differential resistance ensures minimal output voltage variation under dynamic current loads up to 200 mA.
The DFN1006BD-2 package integrates cathode and anode terminals on a 0.65 mm pitch, 1.0 mm × 0.6 mm footprint, and features side-wettable flanks for reliable IPC-A-610 Class 3 solder joint inspection. Thermal resistance from junction to ambient is 340 K/W on standard FR4.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 35.3–36.7 V at IZ = 2 mA - defines tight regulation window for 33 V nominal rail stabilization |
| Tolerance | ±2 % - enables high-accuracy reference without external trimming in automotive sensor interfaces |
| Differential Resistance (rdif) | 75 Ω typ. at IZ = 2 mA - limits output voltage shift to ≤75 mV per 1 mA load change |
| Power Dissipation (Ptot) | 365 mW on FR4 PCB - supports continuous operation in compact power management blocks |
| Reverse Current (IR) | ≤0.05 μA at VR = 27 V - ensures negligible leakage in high-impedance voltage divider networks |
| Junction Temperature (Tj) | −55 °C to +150 °C - validated for under-hood automotive environments and industrial control cabinets |
| AEC-Q101 Qualified | Yes - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: DFN1006BD-2 (SOD882BD), 1.0 mm × 0.6 mm × 0.47 mm body, 0.65 mm terminal pitch, side-wettable flanks, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal for automated placement and AOI |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-biased junction for Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Side-wettable flanks | Enables automated optical inspection of solder fillets on both package edges - critical for zero-defect automotive manufacturing |
| AEC-Q101 qualification | Validated for automotive use including HTSL, TCT, and HTRB - eliminates need for additional qualification testing |
| Ultra-small footprint | 1.0 mm × 0.6 mm area - saves >60 % board space vs. traditional SOD-323 Zeners in ADAS camera modules |
| Low differential resistance | 75 Ω typ. at 2 mA - maintains regulation stability under transient load steps in microcontroller reset circuits |
| Wide operating temperature | −55 °C to +150 °C - supports direct mounting on engine control unit (ECU) PCBs without thermal derating |
Applications
| Automotive Sensor Biasing | Industrial Power Rail Clamping |
|---|---|
Use Scenario: Providing stable 33 V reference for analog front-end amplifiers in wheel speed sensors and pressure transducers. IC Role / Device Role / Timing Role: Zener voltage reference and noise-filtering shunt element in precision signal conditioning path. Use Value: ±2 % tolerance and +35 mV/K tempco enable <1 % total error over −40 °C to +125 °C, meeting ASIL-B functional safety requirements. |
Use Scenario: Clamping 33 V supply rails against load-dump transients in programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: Overvoltage protection device absorbing surge energy during 24 V system faults. Use Value: 365 mW dissipation rating and 200 mA peak forward current withstand capability prevent latch-up during 100 ms 40 V transients. |
| Consumer USB-C PD Protection | Medical Instrument Reference |
Use Scenario: Regulating auxiliary 33 V bias for USB-C power delivery controller ICs in portable chargers. IC Role / Device Role / Timing Role: Precision shunt regulator maintaining stable gate drive voltage for GaN FETs. Use Value: 75 Ω rdif ensures <±15 mV output variation across 0–10 mA load range, improving PD negotiation accuracy. |
Use Scenario: Generating calibrated 33 V reference for analog-to-digital conversion in portable ECG monitors. IC Role / Device Role / Timing Role: Low-drift voltage reference source feeding precision op-amp gain stages. Use Value: Side-wettable flanks ensure full-solder-joint visibility during medical device ISO 13485 audits, eliminating X-ray inspection cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX884S-C33-Q | ±5 % tolerance (31.0–35.0 V), higher 80 Ω rdif, same package and AEC-Q101 rating | Accepts wider output variation; suitable where cost sensitivity outweighs precision needs | Select for non-safety-critical industrial controls where 33 V ±5 % meets system margin |
| MMSZ5259B-TP | 33 V ±5 %, SOD-123 package (2.7 mm × 1.6 mm), 500 mW Ptot, no AEC-Q101 | Larger footprint, higher power, unqualified for automotive use | Choose only for legacy designs requiring backward compatibility with through-hole or larger SMD footprints |
Compared with BZX884S-C33-Q, the BZX884S-B33-QYL offers tighter regulation and lower impedance for precision biasing; versus MMSZ5259B-TP, it provides automotive qualification and 40 % smaller area but requires re-optimization of PCB layout and thermal relief.
Availability
BZX884S-B33-QYL is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLCs, USB-C PD adapters, and portable medical instruments requiring stable component supply with AEC-Q101 compliance and side-wettable flank manufacturability.
Supply support for BZX884S-B33-QYL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The BZX884S-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for space-constrained automotive electronics requiring robust voltage regulation and automated optical inspectability.
FAQ
What is the maximum continuous reverse current the BZX884S-B33-QYL can sustain without degradation?
The device is rated for 200 mA maximum forward current (IF), but in Zener operation, sustained reverse current must remain within its 365 mW power limit. At 33 V, this corresponds to ≤11 mA continuous Zener current on FR4 PCB. Exceeding this without thermal derating risks junction temperature exceeding 150 °C and permanent parameter shift.
How does the side-wettable flank design impact reflow soldering process control?
Side-wettable flanks allow automated optical inspection (AOI) to verify solder fillet formation on both lateral edges of the DFN1006BD-2 package. This eliminates reliance on X-ray for hidden-joint verification, reducing test time and cost while achieving IPC-A-610 Class 3 compliance in automotive production lines.
Is the temperature coefficient of the BZX884S-B33-QYL positive or negative, and how does it affect circuit performance?
The BZX884S-B33-QYL exhibits a +35 mV/K temperature coefficient at IZ = 2 mA, meaning its Zener voltage increases linearly with junction temperature. This positive drift must be accounted for in high-temperature applications like engine control units, where regulation may rise by ~3.5 V from −40 °C to +125 °C ambient.
Can the BZX884S-B33-QYL replace older SOD-323 Zeners in existing designs without layout changes?
No - the DFN1006BD-2 (1.0 mm × 0.6 mm) footprint differs significantly from SOD-323 (1.7 mm × 1.3 mm). Direct replacement requires PCB redesign to accommodate the smaller pad geometry, 0.65 mm pitch, and side-wettable flank solder mask openings per Nexperia's recommended footprint (Fig. 11).
BZX884S-B33-QYL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-882
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 33 V
- Tolerance:
- ±2.12%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 23.1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DFN1006BD-2
BZX884S-B33-QYL FAQ
1.How can I place an order for BZX884S-B33-QYL through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX884S-B33-QYL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for BZX884S-B33-QYL reliable?
The price and inventory of BZX884S-B33-QYL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX884S-B33-QYL is usually 5 days.
3.What payment methods are accepted for BZX884S-B33-QYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX884S-B33-QYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX884S-B33-QYL?
BZX884S-B33-QYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX884S-B33-QYL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for BZX884S-B33-QYL?
For technical support, including BZX884S-B33-QYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX884S-B33-QYL requirements.
6.How does Aetrix verify that BZX884S-B33-QYL is sourced from the original manufacturer or authorized distributors?
All BZX884S-B33-QYL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BZX884S-B33-QYL meets industry standards.
7.What is the process for return or replacement of BZX884S-B33-QYL?
All BZX884S-B33-QYL units undergo pre-shipment inspection (PSI). If there is an issue with BZX884S-B33-QYL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The BZX884S-B33-QYL part is unused and in its original packaging.
Return procedure for BZX884S-B33-QYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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