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Nexperia USA Inc. PDZ3.3BGWX
- Part No.:
- PDZ3.3BGWX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
PDZ3.3BGWX.pdf
- Description:
- DIODE ZENER 3.3V 365MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:210
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Product details
Overview
PDZ3.3BGWX from Nexperia is a single Zener diode in SOD123 package, designed for precision voltage regulation and reference functions at nominal 3.3 V with ±2 % tolerance (B-series), 5 μA reverse current at 2.4 V, 95 Ω differential resistance at IZ = 5 mA, and AEC-Q101 qualification for automotive-grade reliability in compact PCB space-constrained designs.
For engineers reviewing the PDZ3.3BGWX datasheet, PDZ3.3BGWX pinout, PDZ3.3BGWX application, or PDZ3.3BGWX equivalent, this device supports stable low-voltage clamping, ESD-robust power rail stabilization, and temperature-compensated reference generation where tight Zener voltage accuracy and low thermal drift are required.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal working voltage of 3.32 V to 3.53 V at IZ = 5 mA, exhibiting a negative temperature coefficient of −2.4 mV/K - enabling predictable thermal behavior in bias networks. Its low differential resistance (≤95 Ω) ensures minimal voltage variation under load changes.
The device delivers non-repetitive peak reverse power dissipation up to 40 W (tp = 100 μs), while maintaining total power dissipation ≤365 mW at Tamb ≤ 25 °C on standard FR4 PCB, and achieves thermal resistance from junction to solder point as low as 50 K/W - critical for transient surge handling in automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 3.32 V to 3.53 V at IZ = 5 mA - defines precise regulation threshold for 3.3 V rail protection |
| Voltage Tolerance | ±2 % (B2 series) - enables high-accuracy reference without post-production trimming |
| Differential Resistance | ≤95 Ω at IZ = 5 mA - minimizes output voltage shift under dynamic current loads |
| Reverse Current | ≤5 μA at VR = 2.4 V - ensures low leakage in standby or battery-backed circuits |
| Thermal Resistance (j-sp) | 50 K/W - supports reliable surge energy dissipation via cathode pad conduction |
| AEC-Q101 Qualified | Validated for automotive applications - meets stress test requirements for discrete semiconductors |
| Package | SOD123 - surface-mount footprint (3.75 × 2.55 mm) compatible with automated assembly and IPC-7351 standards |
Pinout & Package
SOD123 plastic surface-mount package with cathode-marked end (bar marking), 2-terminal configuration optimized for high-density PCB layouts and reflow soldering per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking bar identifies this terminal for polarity-critical placement |
| 2 (A) | Anode | Connected to ground or lower-potential rail; reverse-biased operation requires anode at lower voltage than cathode |
Key Features
| Feature | Design Value |
|---|---|
| Non-repetitive peak power handling | 40 W (100 μs pulse) - protects downstream circuitry from short-duration transients like ISO 7637-2 pulses |
| Low thermal resistance to solder point | 50 K/W - enables efficient heat transfer to PCB copper, improving long-term reliability under thermal cycling |
| Tight voltage tolerance | ±2 % at IZ = 5 mA - reduces need for external calibration in precision analog sensor interfaces |
| Automotive qualification | AEC-Q101 compliant - certified for use in engine control units, body electronics, and ADAS power domains |
| Low reverse leakage | ≤5 μA at 2.4 V - preserves battery life in always-on automotive modules such as CAN wake-up receivers |
Applications
| Automotive Power Rail Clamping | Industrial Sensor Reference |
|---|---|
|
Use Scenario: Suppressing load-dump transients on 3.3 V microcontroller supply rails in body control modules. IC Role / Device Role / Timing Role: Zener clamping element placed between VCC and GND to clamp overvoltage spikes above 3.53 V. Use Value: Limits voltage excursion to within MCU absolute maximum rating (4.0 V), preventing latch-up or permanent damage during ISO 16750-2 tests. |
Use Scenario: Providing stable bias voltage for bridge-based pressure sensors in factory automation PLC input stages. IC Role / Device Role / Timing Role: Precision shunt reference establishing fixed 3.3 V excitation for Wheatstone bridge arms. Use Value: Maintains <±0.5 % full-scale error across −40 °C to +125 °C due to matched −2.4 mV/K TC and low rdif. |
| USB-C Port Overvoltage Protection | IoT Node Battery Monitoring |
|
Use Scenario: Safeguarding USB-C power delivery controller ICs against accidental 5 V-to-3.3 V misconnection events. IC Role / Device Role / Timing Role: Fast-acting shunt limiter triggered when VBUS exceeds 3.53 V, diverting fault current to ground. Use Value: Responds within <100 ns to overvoltage events, limiting energy delivered to <10 mJ before thermal shutdown of upstream FET. |
Use Scenario: Monitoring Li-ion cell voltage in BLE-enabled asset trackers using ADC reference scaling. IC Role / Device Role / Timing Role: Low-leakage Zener generating stable 3.3 V reference for 12-bit SAR ADC internal scaling. Use Value: Enables ±10 mV measurement accuracy over 10-year shelf life due to <5 μA IR and AEC-Q101 process stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B3V3 | Same SOD323 package; ±5 % tolerance; higher IR (≤10 μA at 2.4 V); no AEC-Q101 qualification | Not rated for automotive environments; suitable only for commercial-grade consumer IoT | Select if cost sensitivity outweighs automotive compliance and tighter tolerance needs |
| MMSZ4685 | SOD123 package; ±5 % tolerance; 3.14–3.47 V range; 100 Ω rdif; AEC-Q101 qualified | Broader voltage spread reduces accuracy in precision references but improves surge margin | Choose when wider Zener voltage window is acceptable to simplify BOM consolidation across multiple rails |
Compared with PDZ3.3BGWX, BZX384-B3V3 trades automotive qualification and ±2 % accuracy for smaller footprint and lower unit cost, while MMSZ4685 retains AEC-Q101 compliance but sacrifices regulation precision for broader voltage tolerance and higher differential resistance.
Availability
PDZ3.3BGWX is available at Aetrix Electronics and suitable for automotive power management, industrial sensor signal conditioning, and IoT battery monitoring systems requiring stable component supply with guaranteed long-term manufacturability.
Supply support for PDZ3.3BGWX 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 leading global semiconductor expert delivering high-performance logic, analog, and discrete components with focus on efficiency, reliability, and miniaturization for automotive, industrial, and mobile markets.
The PDZ-GW series targets automotive-grade voltage regulation and reference applications, engineered specifically to meet AEC-Q101 requirements while maintaining tight tolerances and robust surge performance in SOD123 packaging.
FAQ
What is the maximum continuous reverse power dissipation for PDZ3.3BGWX at 85 °C ambient?
At Tamb = 85 °C, derated total power dissipation is 220 mW, calculated using the 365 mW rating at 25 °C and thermal resistance Rth(j-a) = 340 K/W. This ensures safe operation without exceeding 150 °C junction temperature under sustained DC reverse bias conditions.
Does PDZ3.3BGWX support bidirectional ESD protection?
No - PDZ3.3BGWX is a unidirectional Zener diode optimized for reverse-bias regulation only. Its forward voltage is 0.9 V at 10 mA, but it lacks symmetrical clamping characteristics required for IEC 61000-4-2 ESD protection; dedicated TVS diodes like PESD3V3L1UB should be used for bidirectional surge suppression.
How does the −2.4 mV/K temperature coefficient affect regulation accuracy over −40 °C to +125 °C?
Over that range, the Zener voltage shifts by approximately −375 mV (−2.4 mV/K × 155 K), resulting in a final VZ of ~2.95 V at +125 °C. This predictable drift allows compensation in firmware or analog circuit design, unlike positive-coefficient references which exhibit non-monotonic behavior.
Can PDZ3.3BGWX replace PDZ3.3B in existing designs?
Yes - PDZ3.3BGWX is a direct replacement for PDZ3.3B, sharing identical electrical specifications, SOD123 package dimensions, pinout, and AEC-Q101 qualification. The "X" suffix denotes tape-and-reel packaging per EIA-481 standard, with no functional or thermal differences from the base part.
PDZ3.3BGWX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PDZ-GW
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.3 V
- Tolerance:
- ±3.18%
- Power - Max:
- 365 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
PDZ3.3BGWX FAQ
1.How can I place an order for PDZ3.3BGWX through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ3.3BGWX 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 PDZ3.3BGWX reliable?
The price and inventory of PDZ3.3BGWX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ3.3BGWX is usually 5 days.
3.What payment methods are accepted for PDZ3.3BGWX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ3.3BGWX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ3.3BGWX?
PDZ3.3BGWX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ3.3BGWX 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 PDZ3.3BGWX?
For technical support, including PDZ3.3BGWX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ3.3BGWX requirements.
6.How does Aetrix verify that PDZ3.3BGWX is sourced from the original manufacturer or authorized distributors?
All PDZ3.3BGWX 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 PDZ3.3BGWX meets industry standards.
7.What is the process for return or replacement of PDZ3.3BGWX?
All PDZ3.3BGWX units undergo pre-shipment inspection (PSI). If there is an issue with PDZ3.3BGWX, 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 PDZ3.3BGWX part is unused and in its original packaging.
Return procedure for PDZ3.3BGWX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ3.3BGWX Tags
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MM5Z5V1ST1G
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