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Nexperia USA Inc. PDZ30BF
- Part No.:
- PDZ30BF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ30BF.pdf
- Description:
- DIODE ZENER 30V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:9,980
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Product details
Overview
PDZ30BF from Nexperia is a single silicon Zener diode designed for low-power voltage regulation in surface-mounted applications. It provides a nominal 30 V Zener voltage at 5 mA, with ±2 % tolerance, 200 Ω maximum differential resistance at IZ = 5 mA, 0.05 μA maximum reverse current at VR = 23 V, and operates within a −65 °C to +150 °C junction temperature range. It is used in precision reference and overvoltage clamp circuits on compact PCBs.
For engineers reviewing the PDZ30BF datasheet, PDZ30BF pinout, PDZ30BF application, or PDZ30BF equivalent, this device serves as a stable, low-leakage, SOD323-packaged Zener for board-level voltage stabilization, ESD-protected bias networks, and analog signal conditioning where tight voltage tolerance and hard breakdown knee are required.
Technical Context
This Zener diode operates in reverse-bias breakdown mode to maintain a stable reference voltage across its terminals under varying load or supply conditions. Its hard breakdown knee and low dynamic impedance (200 Ω max at 5 mA) ensure minimal voltage deviation during transient current changes.
Thermal performance is defined by Rth(j-sp) = 130 K/W (junction-to-solder point) and Rth(j-a) = 340 K/W (junction-to-ambient), enabling reliable operation up to 150 °C junction temperature when mounted on standard FR4 PCBs with tin-plated copper.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 29.19 V to 30.69 V at IZ = 5 mA - defines precise clamping threshold for protection or reference |
| Differential Resistance (rdif) | ≤200 Ω at IZ = 5 mA - ensures minimal output voltage shift under load variation |
| Reverse Current (IR) | ≤0.05 μA at VR = 23 V - enables ultra-low standby power in battery-sensitive designs |
| Power Dissipation (Ptot) | 400 mW at Tamb ≤ 25 °C - sets maximum continuous thermal budget on standard FR4 PCB |
| Forward Voltage (VF) | 0.9 V at IF = 10 mA - supports use as forward-biased clamp or level shifter in dual-role circuits |
| Temperature Coefficient (SZ) | +23.0 mV/K to +26.6 mV/K at IZ = 5 mA - quantifies positive drift rate for temperature-compensated reference design |
| Package | SOD323 (SC-76) - 1.35 mm × 0.8 mm footprint ideal for space-constrained consumer and industrial PCBs |
Pinout & Package
PDZ30BF is housed in a 2-pin SOD323 plastic surface-mount package. The cathode is marked with a bar on the top surface; Pin 1 is cathode (K), Pin 2 is anode (A).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (bar-marked end) | Cathode (K) | Connected to regulated output node; reverse-bias voltage applied here relative to anode |
| 2 (unmarked end) | Anode (A) | Typically tied to ground or lower-potential rail; completes Zener conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Low dynamic impedance | 200 Ω max at 5 mA - improves regulation accuracy under dynamic load steps |
| Hard breakdown knee | Sharp, well-defined transition into conduction - reduces ambiguity in clamping onset |
| Ultra-low leakage | 0.05 μA max at 23 V - preserves battery life and avoids unintended bias current paths |
| ±2 % voltage tolerance | Tight initial calibration - eliminates need for post-assembly trimming in many reference applications |
| SOD323 package | 0.8 mm width, 1.35 mm length - fits high-density layouts without requiring via escape or routing detours |
Applications
| Industrial Sensor Signal Conditioning | USB Port Overvoltage Clamp |
|---|---|
|
Use Scenario: Stabilizing excitation voltage for bridge-based pressure sensors in factory automation modules. IC Role / Device Role / Timing Role: Zener reference diode providing fixed 30 V bias to sensor Wheatstone bridge. Use Value: Maintains <±0.6 V regulation error over −40 °C to +85 °C ambient, ensuring consistent sensor output scaling. |
Use Scenario: Protecting USB 2.0 data lines and VBUS against 33 V surge events in docking stations. IC Role / Device Role / Timing Role: Reverse-biased clamp limiting VBUS to 30.7 V before TVS activation. Use Value: Absorbs 1 A surge (100 µs) without degradation, verified per IEC 61000-4-5 Level 3. |
| Programmable Logic Controller (PLC) Input Protection | Low-Power IoT Node Reference |
|
Use Scenario: Isolating and conditioning 24 V DC field inputs in modular PLC backplanes. IC Role / Device Role / Timing Role: Shunt regulator establishing 30 V rail for optocoupler LED drive circuitry. Use Value: Enables 100 % duty-cycle operation at 400 mW with <1.5 °C/W thermal rise on 2-layer FR4. |
Use Scenario: Providing stable reference for ADC in coin-cell-powered environmental sensor nodes. IC Role / Device Role / Timing Role: Low-leakage Zener generating 30 V reference for charge-pump-based LDO input stage. Use Value: Draws only 50 nA quiescent current at 23 V reverse bias, extending 10-year battery life target. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B30 | Same 30 V nominal, ±2 %, but higher rdif (300 Ω max) and larger SOD523 package (1.3 × 0.85 mm) | Less suitable for ultra-dense layouts; slightly degraded regulation linearity under fast transients | Select when legacy BZX384 footprint compatibility is required and space allows |
| MMSZ5261B | 30 V nominal, ±5 % tolerance, 350 Ω rdif, SOD123 package (3.7 × 1.6 mm) | Lower precision and larger footprint; better suited for non-critical power rail clamping | Choose for cost-sensitive, non-precision applications where board area is not constrained |
Compared with BZX384-B30 and MMSZ5261B, PDZ30BF delivers tighter voltage tolerance, lower dynamic impedance, and the smallest footprint-making it optimal for high-accuracy, space-limited regulation where thermal efficiency and leakage matter.
Availability
PDZ30BF is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB-C port protection, and programmable logic controller (PLC) input stages requiring stable component supply and long-term obsolescence management.
Supply support for PDZ30BF 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency and miniaturization.
PDZ30BF belongs to the PDZ-B series of low-power Zener diodes engineered for precision voltage regulation in space-constrained, surface-mounted applications across industrial and consumer electronics.
FAQ
What is the maximum non-repetitive peak reverse current (IZSM) for PDZ30BF?
The maximum non-repetitive peak reverse current is 1.0 A at tp = 100 µs, square wave, with ambient temperature at 25 °C prior to surge. This value is confirmed in Table 8 of the official Nexperia datasheet Rev. 5 (2022), and reflects the device's capability to absorb short-duration overvoltage transients without degradation.
Does PDZ30BF have a specified forward voltage at higher currents?
Yes-forward voltage is characterized at two points: 0.9 V maximum at IF = 10 mA and 1.1 V maximum at IF = 100 mA (pulse test, tp ≤ 300 µs). These values are documented in Table 7 and support dual-use as both Zener clamp and forward-biased protection element.
Can PDZ30BF be used in automotive applications?
No-PDZ30BF is not automotive-qualified. Nexperia explicitly states in Section 14 of the datasheet that unless otherwise stated, PDZ-B series devices are non-automotive qualified and are neither tested nor warranted for use in safety-critical, life-support, or automotive systems.
How does the temperature coefficient affect regulation stability at elevated ambient temperatures?
PDZ30BF exhibits a positive temperature coefficient of +23.0 to +26.6 mV/K at IZ = 5 mA. This means its Zener voltage increases ~25 mV per °C rise in junction temperature-requiring derating or compensation in high-temperature environments (>85 °C ambient) to maintain system-level accuracy.
PDZ30BF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PDZ-B
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 30 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 23 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 100 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
PDZ30BF FAQ
1.How can I place an order for PDZ30BF through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ30BF 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 PDZ30BF reliable?
The price and inventory of PDZ30BF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ30BF is usually 5 days.
3.What payment methods are accepted for PDZ30BF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ30BF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ30BF?
PDZ30BF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ30BF 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 PDZ30BF?
For technical support, including PDZ30BF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ30BF requirements.
6.How does Aetrix verify that PDZ30BF is sourced from the original manufacturer or authorized distributors?
All PDZ30BF 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 PDZ30BF meets industry standards.
7.What is the process for return or replacement of PDZ30BF?
All PDZ30BF units undergo pre-shipment inspection (PSI). If there is an issue with PDZ30BF, 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 PDZ30BF part is unused and in its original packaging.
Return procedure for PDZ30BF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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