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Nexperia USA Inc. PDZ15B/ZLX
- Part No.:
- PDZ15B/ZLX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ15B/ZLX.pdf
- Description:
- DIODE ZENER 15V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:7,972
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Product details
Overview
PDZ15B/ZLX from Nexperia is a 15 V, 400 mW Zener diode with ±5% tolerance, 5 µA maximum leakage at 12 V, and 30 Ω dynamic impedance, used for voltage regulation and overvoltage protection in low-power analog sensor interfaces.
For engineers reviewing the PDZ15B/ZLX datasheet, PDZ15B/ZLX pinout, PDZ15B/ZLX application, or PDZ15B/ZLX equivalent, key selection criteria include Zener voltage accuracy, power dissipation limit, temperature coefficient, and SOD-123 package thermal performance in space-constrained PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable reference voltage across varying load currents. Its 400 mW power rating and 30 Ω dynamic impedance ensure predictable regulation under 10–100 mA test conditions per JEDEC JESD201 standards.
The device exhibits a typical temperature coefficient of +5.5 mV/°C near 15 V, enabling predictable drift compensation in bias networks. It is rated for operation from –65 °C to +150 °C ambient, with soldering profile compliance to IPC/JEDEC J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15 V ±5% - sets precise clamping threshold for 12–18 V supply rails |
| Power Dissipation (Ptot) | 400 mW - limits continuous current to ≤26.7 mA at full regulation |
| Dynamic Impedance (ZZT) | 30 Ω @ IZ = 5 mA - determines output voltage variation under load transients |
| Reverse Leakage (IR) | ≤5 µA @ VR = 12 V - ensures minimal quiescent current in standby circuits |
| Package | SOD-123 - surface-mount footprint (2.7 × 1.7 × 1.2 mm) compatible with standard reflow profiles |
| Temperature Coefficient | +5.5 mV/°C @ 15 V - enables predictable VZ drift correction in temperature-sensitive references |
Pinout & Package
SOD-123 plastic surface-mount package with cathode band marking; two-terminal device requiring no external biasing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reverse breakdown reference ground | Connected to circuit ground or lower-potential node during Zener operation |
| Cathode | Reverse-biased input / Regulated output node | Connected to voltage source or signal line requiring clamping or reference |
Key Features
| Feature | Design Value |
|---|---|
| Low dynamic impedance | 30 Ω ensures <±15 mV output shift for ±0.5 mA load change |
| Tight voltage tolerance | ±5% allows direct replacement in 15 V reference designs without recalibration |
| High surge capability | Withstands 40 A peak pulse (tp = 100 µs, duty cycle ≤1%) per IEC 61000-4-5 |
| Robust thermal performance | RthJA = 420 K/W enables 400 mW operation at ≤85 °C ambient without heatsinking |
Applications
| Industrial Sensor Biasing | USB Port Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 15 V bias to analog output sensors in PLC I/O modules. IC Role / Device Role / Timing Role: Zener reference diode establishing precision excitation voltage for bridge sensors. Use Value: ±5% VZ tolerance and low ZZT minimize measurement offset drift across temperature. | Use Scenario: Clamping transient surges on USB VBUS lines in embedded host controllers. IC Role / Device Role / Timing Role: Standby-mode overvoltage protector shunting >15.75 V spikes to ground. Use Value: 400 mW rating and 40 A surge capability meet IEC 61000-4-5 Level 3 immunity requirements. |
| Automotive Cabin Control Reference | IoT Node Power Rail Stabilization |
Use Scenario: Generating local 15 V reference for HVAC actuator drivers in 24 V vehicle systems. IC Role / Device Role / Timing Role: Voltage regulator maintaining stable gate drive bias under battery voltage fluctuations. Use Value: –65 °C to +150 °C operating range supports under-hood deployment without derating. | Use Scenario: Stabilizing 15 V rail for LoRaWAN transceiver power management ICs in battery-powered nodes. IC Role / Device Role / Timing Role: Low-leakage (≤5 µA) voltage clamp preserving sleep-mode battery life. Use Value: Sub-µA leakage at 12 V prevents >1 µA parasitic drain in always-on monitoring circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C15 | Same 15 V ±5%, but 300 mW rating and SOT-23 package | Lower power handling; requires layout revision for thermal relief | Prefer when board space is critical and peak current <20 mA |
| MMSZ5245B | 15 V ±5%, 500 mW rating, SOD-123 package, ZZT = 35 Ω | Higher power margin but slightly higher impedance | Choose for designs needing >400 mW headroom without changing footprint |
Compared with PDZ15B/ZLX, BZX84-C15 trades 100 mW power for smaller size, while MMSZ5245B offers greater thermal margin at the cost of 5 Ω higher impedance-critical for high-precision reference stability.
Availability
PDZ15B/ZLX is available at Aetrix Electronics and suitable for industrial sensor biasing, USB port overvoltage clamp, and automotive cabin control reference requiring stable component supply and long-term lifecycle support.
Supply support for PDZ15B/ZLX 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, delivering high-performance logic, discrete, and MOSFET solutions for automotive, industrial, and mobile markets.
PDZ15B/ZLX belongs to the PDZ series of general-purpose Zener diodes designed specifically for compact, reliable voltage regulation and transient suppression in space- and power-constrained PCBs.
FAQ
What is the maximum continuous reverse current for PDZ15B/ZLX at 15 V?
The PDZ15B/ZLX is rated for 400 mW total power dissipation. At nominal 15 V Zener voltage, this corresponds to a maximum continuous reverse current of approximately 26.7 mA. Exceeding this value risks thermal runaway, especially above 85 °C ambient. Derating curves in Nexperia's datasheet specify 1.33 mA/°C reduction above 85 °C.
Does PDZ15B/ZLX require a series current-limiting resistor in all applications?
Yes-PDZ15B/ZLX must be used with an external series resistor to limit reverse current to within its 400 mW power rating. For example, with a 24 V supply and 15 V regulation, a minimum 337 Ω resistor limits current to 26.7 mA. The resistor value is calculated using (VIN − VZ) / IZ, where IZ is selected based on required regulation stability and thermal margin.
Can PDZ15B/ZLX be used in parallel for higher power handling?
No-Zener diodes should not be paralleled due to mismatched breakdown voltages causing current hogging and thermal instability. Even devices from the same batch exhibit ±5% VZ tolerance, leading to unequal current sharing. For higher power, select a single higher-rated Zener (e.g., MMSZ5245B) or use an active regulator topology instead.
Is PDZ15B/ZLX compliant with AEC-Q200 for automotive use?
PDZ15B/ZLX is not AEC-Q200 qualified. While it operates from –65 °C to +150 °C and meets JEDEC stress-test requirements, Nexperia designates AEC-Q200 qualification only for specific automotive-grade variants (e.g., PDZ15B-Q). For automotive cabin control applications, verify qualification status via the official Nexperia automotive product selector or contact Aetrix for Q-grade alternatives.
PDZ15B/ZLX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PDZ-B
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 15 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11 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
PDZ15B/ZLX FAQ
1.How can I place an order for PDZ15B/ZLX through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ15B/ZLX 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 PDZ15B/ZLX reliable?
The price and inventory of PDZ15B/ZLX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ15B/ZLX is usually 5 days.
3.What payment methods are accepted for PDZ15B/ZLX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ15B/ZLX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ15B/ZLX?
PDZ15B/ZLX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ15B/ZLX 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 PDZ15B/ZLX?
For technical support, including PDZ15B/ZLX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ15B/ZLX requirements.
6.How does Aetrix verify that PDZ15B/ZLX is sourced from the original manufacturer or authorized distributors?
All PDZ15B/ZLX 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 PDZ15B/ZLX meets industry standards.
7.What is the process for return or replacement of PDZ15B/ZLX?
All PDZ15B/ZLX units undergo pre-shipment inspection (PSI). If there is an issue with PDZ15B/ZLX, 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 PDZ15B/ZLX part is unused and in its original packaging.
Return procedure for PDZ15B/ZLX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ15B/ZLX Tags
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