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Nexperia USA Inc. PDZ30B,115
- Part No.:
- PDZ30B,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ30B,115.pdf
- Description:
- DIODE ZENER 30V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:2,071
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Product details
Overview
PDZ30B,115 from Nexperia is a single silicon Zener diode designed for low-power voltage regulation in space-constrained SMD applications, with a nominal Zener voltage of 30 V at 5 mA, ±2 % tolerance, 200 Ω maximum differential resistance at 0.5 mA, 0.05 μA maximum reverse leakage at 23 V, and 1.0 mV/K temperature coefficient - deployed in power supply feedback loops and reference circuits.
For engineers reviewing the PDZ30B,115 datasheet, PDZ30B,115 pinout, PDZ30B,115 application, or PDZ30B,115 equivalent, this device serves as a precision, low-leakage, surface-mount voltage reference with hard breakdown knee and stable thermal behavior across industrial temperature ranges.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain a stable reference voltage under varying load and temperature conditions. Its 30 V nominal working voltage is specified at IZ = 5 mA, with typical dynamic impedance of 200 Ω at IZ = 0.5 mA and 40 Ω at IZ = 5 mA.
The device exhibits a positive temperature coefficient of +26.6 mV/K at 5 mA, enabling predictable drift compensation in bias networks. Thermal resistance from junction to solder point is 130 K/W, supporting reliable operation up to 150 °C junction temperature on standard FR4 PCBs.
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 overvoltage protection and reference stability |
| Differential Resistance (rdiff) | 200 Ω max at IZ = 0.5 mA - ensures minimal voltage shift under light-load variations in feedback paths |
| Reverse Leakage (IR) | 0.05 μA max at VR = 23 V - enables ultra-low quiescent current in battery-powered voltage monitors |
| Temperature Coefficient (SZ) | +26.6 mV/K at IZ = 5 mA - provides known, linear drift for temperature-compensated reference designs |
| Total Power Dissipation (Ptot) | 400 mW at Tamb ≤ 25 °C - supports continuous operation in compact SOD323 footprint without forced cooling |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - allows use as polarity-sensitive clamp or ESD protection element in bidirectional circuits |
| Junction-to-Ambient Rth | 340 K/W on FR4 PCB - informs thermal design margin for ambient temperatures up to 85 °C in sealed enclosures |
Pinout & Package
PDZ30B,115 is housed in a SOD323 (SC-76) plastic surface-mount package measuring 1.8 mm × 1.35 mm × 0.95 mm, with cathode marked by a visible bar on the top surface. The package is optimized for reflow and wave soldering per JEDEC standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; reverse-bias terminal where Zener breakdown occurs |
| 2 (A) | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for reference current |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Sharp, well-defined Zener transition enables accurate voltage clamping without soft saturation effects |
| Low leakage at rated voltage | 0.05 μA max at 23 V supports high-impedance sensing nodes and long-battery-life applications |
| Stable ±2 % tolerance | Tight initial calibration reduces need for post-production trimming in precision reference circuits |
| Small SOD323 footprint | 1.8 mm × 1.35 mm body enables placement in dense DC-DC converter feedback networks and portable electronics |
| FR4-compatible thermal performance | 340 K/W Rth(j-a) allows full 400 mW dissipation on standard PCBs without heatsinking or layout redesign |
Applications
| Power Supply Feedback Loop | Overvoltage Protection Clamp |
|---|---|
|
Use Scenario: Regulating output voltage in isolated flyback or buck-boost converters via optocoupler-coupled feedback network. IC Role / Device Role / Timing Role: Zener reference providing stable 30 V threshold to drive optocoupler LED when output exceeds setpoint. Use Value: Enables ±1.5 % output regulation accuracy with minimal component count and no external op-amp. |
Use Scenario: Protecting microcontroller I/O pins against transient surges exceeding 24 V in industrial sensor interfaces. IC Role / Device Role / Timing Role: Fast-acting shunt clamp diverting excess energy to ground before damage threshold is reached. Use Value: Limits pin voltage to ≤30.7 V with <0.1 μA standby leakage, preserving signal integrity during normal operation. |
| Reference Voltage Source | Current Source Bias Network |
|
Use Scenario: Generating stable 30 V reference for analog-to-digital converter (ADC) input scaling in data acquisition modules. IC Role / Device Role / Timing Role: Precision voltage node supplying bias to resistive divider network feeding ADC reference input. Use Value: Delivers <10 ppm/°C effective drift after compensation, meeting 12-bit linearity requirements over −40 to +85 °C. |
Use Scenario: Setting constant current through LED strings or laser diodes using two-resistor Zener-based current mirror. IC Role / Device Role / Timing Role: Fixed-voltage node establishing base-emitter voltage drop for transistor current control loop. Use Value: Maintains ±2.5 % current accuracy across 50 °C ambient range due to predictable +26.6 mV/K coefficient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX384-B30,115 | Same 30 V nominal, but ±5 % tolerance and higher 500 Ω rdiff at 5 mA; SOD323 package | Lower precision; suitable only where cost sensitivity outweighs regulation accuracy | Select when budget constraints dominate and ±5 % output variation is acceptable |
| MMSZ5257ET1G | 30 V nominal, ±5 % tolerance, 35 Ω rdiff at 20 mA, SOD-123 package (larger footprint) | Higher power rating (500 mW), but requires 20 mA test current and larger board area | Choose for higher-current clamping where thermal margin >400 mW is required |
Compared with BZX384-B30,115 and MMSZ5257ET1G, PDZ30B,115 delivers tighter tolerance and lower leakage at lower test current, making it optimal for low-power, high-accuracy reference roles where SOD323 size is critical.
Availability
PDZ30B,115 is available at Aetrix Electronics and suitable for power supply feedback loops, overvoltage protection clamps, reference voltage sources, and current source bias networks requiring stable component supply and consistent parametric performance.
Supply support for PDZ30B,115 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 high-volume, high-reliability discrete and logic devices, headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.
The PDZ-B series targets general-purpose, low-power voltage regulation in consumer, industrial, and computing applications - emphasizing small size, tight tolerance, and robust SMD manufacturability.
FAQ
What is the maximum reverse current (IZSM) for PDZ30B,115?
The 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 and applies to transient overvoltage suppression scenarios such as ESD or lightning-induced spikes.
Can PDZ30B,115 be used in place of a 33 V Zener diode?
No - PDZ30B,115 has a nominal Zener voltage range of 29.19 V to 30.69 V at 5 mA, while a 33 V part (e.g., PDZ33B) spans 32.15 V to 33.79 V. Substituting would cause ~10 % error in regulation threshold and violate design margins in precision feedback or protection circuits.
Is PDZ30B,115 automotive qualified?
No - the Nexperia PDZ-B series is not automotive qualified. The datasheet explicitly states "Non-automotive qualified products" and confirms no AEC-Q200 testing or qualification. It is intended for industrial, consumer, and computing applications only.
What is the forward voltage drop at 100 mA?
The forward voltage is 1.1 V maximum at IF = 100 mA, per Table 7 in the datasheet. This value reflects conduction behavior under high-current surge conditions and is relevant when the device is used bidirectionally or as a polarity-sensitive clamp.
PDZ30B,115 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
PDZ30B,115 FAQ
1.How can I place an order for PDZ30B,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ30B,115 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 PDZ30B,115 reliable?
The price and inventory of PDZ30B,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ30B,115 is usually 5 days.
3.What payment methods are accepted for PDZ30B,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ30B,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ30B,115?
PDZ30B,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ30B,115 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 PDZ30B,115?
For technical support, including PDZ30B,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ30B,115 requirements.
6.How does Aetrix verify that PDZ30B,115 is sourced from the original manufacturer or authorized distributors?
All PDZ30B,115 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 PDZ30B,115 meets industry standards.
7.What is the process for return or replacement of PDZ30B,115?
All PDZ30B,115 units undergo pre-shipment inspection (PSI). If there is an issue with PDZ30B,115, 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 PDZ30B,115 part is unused and in its original packaging.
Return procedure for PDZ30B,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ30B,115 Tags
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