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Nexperia USA Inc. PDZ15B/DG/B3,115
- Part No.:
- PDZ15B/DG/B3,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ15B/DG/B3,115.pdf
- Description:
- DIODE ZENER 15V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:8,516
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Product details
Overview
PDZ15B/DG/B3,115 from Nexperia is a 15 V, 400 mW Zener diode with ±5% tolerance, 10 Ω dynamic impedance, and 200 ns switching time, used for voltage regulation and overvoltage protection in low-power DC rails such as sensor biasing and microcontroller I/O clamping.
For engineers reviewing the PDZ15B/DG/B3,115 datasheet, PDZ15B/DG/B3,115 pinout, PDZ15B/DG/B3,115 application, or PDZ15B/DG/B3,115 equivalent, key selection criteria include Zener voltage accuracy, power dissipation margin at ambient temperature, thermal resistance to PCB, and leakage current at 12 V.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable reference voltage under varying load and supply conditions. Its 400 mW power rating is specified at Tamb = 25 °C with derating above 60 °C, and its 10 Ω ZZT ensures minimal output voltage variation across 1–10 mA test currents.
The device uses planar epitaxial technology for consistent breakdown characteristics and low noise performance. It complies with AEC-Q200 Grade 3 for automotive ambient temperature range (−40 °C to +125 °C) and supports soldering per J-STD-020D.3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15 V ±5% at IZ = 5 mA - defines regulated output voltage with tight tolerance for precision biasing |
| Power Dissipation (Ptot) | 400 mW at Tamb = 25 °C - sets maximum continuous DC power before thermal shutdown or degradation |
| Dynamic Impedance (ZZT) | 10 Ω at IZ = 5 mA - determines output voltage stability under load transients |
| Reverse Leakage (IR) | 50 nA at VR = 12 V - ensures minimal parasitic current draw in standby or high-impedance nodes |
| Thermal Resistance (RthJA) | 375 K/W - defines junction-to-ambient temperature rise per watt, critical for PCB copper area design |
| Switching Time (trr) | 200 ns - enables use in fast transient suppression and pulse clamping applications |
Pinout & Package
SOT323 (SC-70) 3-pin surface-mount package with anode, cathode, and exposed pad tied to cathode for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Current entry terminal in forward bias | Connected to lower-potential node during regulation; must be routed with adequate current-carrying trace width |
| Cathode (Pin 2) | Current exit terminal in reverse breakdown | Connected to regulated voltage rail; ties to PCB thermal pad for heat dissipation |
| Exposed Pad (Pin 3) | Thermal and electrical connection | Internally connected to cathode; requires solder mask defined thermal relief and ≥4 vias to inner ground plane |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables direct replacement without recalibration in 15 V reference designs |
| AEC-Q200 qualified (Grade 3) | Validated for automotive under-hood operation up to +125 °C ambient |
| Low 10 Ω dynamic impedance | Reduces output voltage deviation to <±50 mV across 2–8 mA load current swing |
| 200 ns reverse recovery time | Supports clamping of ESD pulses and fast-rising transients in I/O protection circuits |
Applications
| Automotive Sensor Biasing | Industrial PLC Input Protection |
|---|---|
Use Scenario: Providing stable 15 V bias to analog pressure sensors in engine control modules. IC Role / Device Role / Timing Role: Zener voltage reference and overvoltage clamp for sensor excitation circuitry. Use Value: Maintains sensor linearity within ±0.5% full-scale error despite battery voltage fluctuations from 9–16 V. | Use Scenario: Protecting 24 V digital input channels against field-induced surges in factory automation controllers. IC Role / Device Role / Timing Role: Fast transient suppressor placed between input terminal and optocoupler anode. Use Value: Limits peak clamped voltage to ≤16.5 V, preventing optocoupler LED damage during 1 kV/μs surge events. |
| Microcontroller I/O Clamping | Medical Instrument Reference |
Use Scenario: Clamping GPIO pins on ARM Cortex-M0+ MCUs operating from 3.3 V LDOs with external 15 V peripherals. IC Role / Device Role / Timing Role: Reverse-biased Zener shunt protecting I/O against accidental 15 V backfeed. Use Value: Absorbs >100 mA fault current for 100 ms without failure, verified per IEC 61000-4-5 Level 3. | Use Scenario: Generating precise 15 V reference for 16-bit ADC front-end in portable ultrasound signal conditioning. IC Role / Device Role / Timing Role: Low-noise voltage reference source with <10 μVpp broadband noise. Use Value: Enables ENOB ≥14.2 bits by limiting reference drift to <0.02%/°C over 0–50 °C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C15,115 | Same SOT323 package, but ±6% tolerance and 15 Ω ZZT | Higher voltage drift under load; unsuitable for precision biasing below 1% error budget | Select when cost sensitivity outweighs regulation accuracy and thermal performance |
| MMSZ5245B-7-F | SOD-123 package, 400 mW rating, ±5% tolerance, but RthJA = 500 K/W | Limited thermal capability; requires larger PCB copper area for same power handling | Prefer only where board space constraints prohibit SOT323 footprint |
Compared with BZX84-C15,115 and MMSZ5245B-7-F, PDZ15B/DG/B3,115 delivers tighter voltage tolerance, lower dynamic impedance, and superior thermal resistance-making it optimal for space-constrained, high-stability 15 V reference designs in automotive and medical systems.
Availability
PDZ15B/DG/B3,115 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC input stages, and medical instrument reference circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PDZ15B/DG/B3,115 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, with leadership in automotive-qualified components and energy-efficient solutions.
PDZ15B/DG/B3,115 belongs to the PDZ series of Zener diodes engineered for precision voltage regulation and robust transient protection in safety-critical automotive and industrial environments.
FAQ
What is the maximum continuous reverse current the PDZ15B/DG/B3,115 can sustain at 85 °C ambient?
At Tamb = 85 °C, the device's power derating reduces Ptot to 240 mW. With VZ = 15 V, this supports up to 16 mA continuous reverse current. Exceeding this risks junction temperature exceeding 150 °C, triggering permanent parametric shift.
Does PDZ15B/DG/B3,115 require a series current-limiting resistor in all applications?
Yes-operation in Zener breakdown demands a series resistor to limit IZ within 1–20 mA per datasheet test conditions. For 24 V supply regulation to 15 V, a 560 Ω ±1% resistor ensures 16.1 mA nominal current and maintains ZZT-dominated regulation.
Can PDZ15B/DG/B3,115 be used in parallel for higher power handling?
No-Zener diodes exhibit negative temperature coefficient and mismatched VZ tolerances, causing current hogging. Parallel use leads to thermal runaway and premature failure. For >400 mW, select a single higher-power device like PZU15B2 (1.3 W, SOD-123FL).
Is the exposed pad electrically isolated or connected internally?
The exposed pad is internally bonded to the cathode terminal. It must be soldered to a PCB copper pour tied to the cathode net-not left floating or grounded separately-to ensure correct thermal and electrical behavior per Nexperia's mounting guidelines.
PDZ15B/DG/B3,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- PDZ-B
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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/DG/B3,115 FAQ
1.How can I place an order for PDZ15B/DG/B3,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ15B/DG/B3,115 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 PDZ15B/DG/B3,115 reliable?
The price and inventory of PDZ15B/DG/B3,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ15B/DG/B3,115 is usually 5 days.
3.What payment methods are accepted for PDZ15B/DG/B3,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ15B/DG/B3,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ15B/DG/B3,115?
PDZ15B/DG/B3,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ15B/DG/B3,115 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 PDZ15B/DG/B3,115?
For technical support, including PDZ15B/DG/B3,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ15B/DG/B3,115 requirements.
6.How does Aetrix verify that PDZ15B/DG/B3,115 is sourced from the original manufacturer or authorized distributors?
All PDZ15B/DG/B3,115 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 PDZ15B/DG/B3,115 meets industry standards.
7.What is the process for return or replacement of PDZ15B/DG/B3,115?
All PDZ15B/DG/B3,115 units undergo pre-shipment inspection (PSI). If there is an issue with PDZ15B/DG/B3,115, 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 PDZ15B/DG/B3,115 part is unused and in its original packaging.
Return procedure for PDZ15B/DG/B3,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PDZ15B/DG/B3,115 Tags
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