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Nexperia USA Inc. PDZ16B,135
- Part No.:
- PDZ16B,135
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PDZ16B,135.pdf
- Description:
- DIODE ZENER 16V 400MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:8,529
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Product details
Overview
PDZ16B,135 from Nexperia is a single low-power Zener diode in SOD323 (SC-76) package, designed for precision voltage regulation at 16 V nominal working voltage with ±2 % tolerance, 80 Ω max differential resistance at IZ = 5 mA, and 0.05 μA max reverse leakage at VR = 12 V - deployed in power supply reference and overvoltage protection circuits.
For engineers reviewing the PDZ16B,135 datasheet, PDZ16B,135 pinout, PDZ16B,135 application, or PDZ16B,135 equivalent, this device serves as a compact, surface-mount voltage clamp with hard breakdown knee, low thermal drift (12.4 mV/K), and stable regulation under low-current bias conditions typical in sensor biasing and microcontroller reset supervision.
Technical Context
The PDZ16B,135 operates as a two-terminal voltage reference diode, conducting in reverse breakdown when cathode-to-anode voltage exceeds its nominal 16.18 V (typical) Zener voltage at 5 mA test current. Its hard breakdown knee and low dynamic impedance ensure minimal voltage variation across load and line changes in low-power analog rails.
Thermal behavior is defined by Rth(j-a) = 340 K/W on FR4 PCB, enabling reliable operation up to +150 °C junction temperature. The −65 °C to +150 °C storage range and 400 mW total power dissipation support industrial-grade deployment without active cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 15.85 V to 16.51 V at IZ = 5 mA - ensures tight 16 V regulation window for reference stability |
| Differential Resistance rdif | ≤ 80 Ω at IZ = 5 mA - minimizes output voltage shift under varying load current |
| Reverse Leakage IR | ≤ 0.05 μA at VR = 12 V - preserves low quiescent current in battery-powered circuits |
| Temperature Coefficient SZ | +12.4 mV/K at IZ = 5 mA - enables predictable voltage drift compensation in thermal-aware designs |
| Forward Voltage VF | 0.9 V at IF = 10 mA - defines low-loss forward conduction during transient clamping or polarity protection |
| Total Power Dissipation Ptot | 400 mW at Tamb = 25 °C - sets maximum continuous power handling on standard FR4 PCB |
| Junction-to-Ambient Rth(j-a) | 340 K/W - determines thermal rise per watt, critical for derating above 25 °C ambient |
Pinout & Package
SOD323 (SC-76) surface-mount plastic package: 2-pin, 1.35 mm × 0.85 mm body, 0.4 mm pitch, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked side) | Cathode (K) | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hard breakdown knee | Enables sharp, repeatable turn-on at VZ, reducing regulation hysteresis in precision references |
| ±2 % VZ tolerance | Guarantees 16 V output within 320 mV absolute error without post-production trimming |
| Low leakage (0.05 μA @ 12 V) | Minimizes standby current draw in always-on monitoring circuits such as brown-out detectors |
| Small SOD323 footprint | Supports high-density PCB layouts in space-constrained IoT sensors and portable electronics |
| 150 °C max junction temperature | Allows operation in sealed enclosures or near heat-generating components without thermal shutdown |
Applications
| Power Supply Reference | Microcontroller Reset Supervision |
|---|---|
|
Use Scenario: Providing stable 16 V reference for adjustable linear regulator feedback or ADC reference divider. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference node voltage. Use Value: Delivers <±10 mV regulation shift over 0–5 mA load current due to 80 Ω rdif, improving ADC accuracy. |
Use Scenario: Biasing reset threshold circuitry for 3.3 V or 5 V microcontrollers requiring precise undervoltage detection. IC Role / Device Role / Timing Role: Voltage clamp defining trip point for external reset IC or comparator input. Use Value: Hard breakdown knee ensures clean, jitter-free reset assertion without false triggering during slow-rising VCC. |
| Sensor Biasing Network | Overvoltage Clamp Protection |
|
Use Scenario: Supplying stable excitation voltage to resistive bridge sensors (e.g., strain gauges) in industrial transmitters. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage source replacing higher-cost shunt references. Use Value: +12.4 mV/K tempco allows predictable calibration offset correction in firmware using ambient temperature reading. |
Use Scenario: Protecting downstream analog inputs (e.g., op-amp inputs, ADC front-ends) from transient overvoltage events. IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting voltage to ≤16.5 V during ESD or surge events. Use Value: 400 mW Ptot rating supports 25 ms surge clamping at 25 mA without thermal runaway on standard FR4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C16-TR | Higher 5 % tolerance (15.2–16.8 V), 500 mW Ptot, DO-35 through-hole package | Requires PCB real estate for axial lead mounting; less suitable for automated SMT assembly | Select when higher power margin is needed and board space permits through-hole placement |
| MMSZ4687T1G | 16 V nominal, ±5 % tolerance, SOD-123 package (larger than SOD323), 500 mW rating | Lower density layout; higher thermal resistance (Rth(j-a) ≈ 400 K/W) reduces power handling at elevated ambient | Choose when legacy SOD-123 footprint compatibility is required and tighter tolerance is not critical |
Compared with BZX55C16-TR and MMSZ4687T1G, PDZ16B,135 offers superior tolerance (±2 % vs. ±5 %), smallest footprint (SOD323), and optimized thermal performance for high-density SMT designs-making it preferred for modern portable and sensor-edge applications where precision and space are constrained.
Availability
PDZ16B,135 is available at Aetrix Electronics and suitable for voltage reference design, microcontroller reset supervision, sensor biasing, and overvoltage clamp protection requiring stable component supply and consistent parametric performance across production batches.
Supply support for PDZ16B,135 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, miniaturization, and robustness for mass-market electronics.
The PDZ-B series targets general-purpose, low-power voltage regulation in space-constrained applications-designed for reliability in consumer, industrial, and computing systems where cost-effective, SMT-ready Zener performance is essential.
FAQ
What is the guaranteed Zener voltage range for PDZ16B,135 at 5 mA test current?
The PDZ16B,135 guarantees a Zener voltage between 15.85 V and 16.51 V when measured at IZ = 5 mA and Tj = 25 °C, reflecting its ±2 % tolerance around the nominal 16.18 V typical value. This range is verified per Nexperia's Product Data Sheet Rev. 5 and applies to all units shipped under this orderable part number.
Can PDZ16B,135 be used in place of a 15 V Zener diode?
No - PDZ16B,135 is specified exclusively for 16 V nominal regulation (15.85–16.51 V range). Substituting it for a 15 V Zener would result in ~1 V higher clamping voltage, potentially exceeding safe operating limits of downstream components. For 15 V regulation, PDZ15B (14.34–14.98 V) is the correct series member.
What is the maximum continuous reverse current before thermal runaway occurs?
At Tamb = 25 °C on standard FR4 PCB, the absolute maximum reverse current is limited by Ptot = 400 mW. With VZ ≈ 16.2 V, this corresponds to IZ ≤ 24.7 mA continuous. Derating is required above 25 °C ambient per the 340 K/W Rth(j-a) curve - e.g., at 70 °C ambient, max IZ drops to ~16 mA.
Does PDZ16B,135 have automotive qualification?
No - PDZ16B,135 is not AEC-Q200 qualified or rated for automotive use. Nexperia explicitly states in its legal disclaimers that non-automotive qualified products like the PDZ-B series are unsuitable for safety-critical, life-support, or automotive applications unless separately validated and warranted by the customer. It is intended for industrial, consumer, and computing end-equipment.
PDZ16B,135 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):
- 16 V
- Tolerance:
- ±2%
- Power - Max:
- 400 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 12 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
PDZ16B,135 FAQ
1.How can I place an order for PDZ16B,135 through Aetrix?
Please submit a Request for Quotation (RFQ) for PDZ16B,135 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 PDZ16B,135 reliable?
The price and inventory of PDZ16B,135 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ16B,135 is usually 5 days.
3.What payment methods are accepted for PDZ16B,135?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ16B,135 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PDZ16B,135?
PDZ16B,135 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PDZ16B,135 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 PDZ16B,135?
For technical support, including PDZ16B,135 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ16B,135 requirements.
6.How does Aetrix verify that PDZ16B,135 is sourced from the original manufacturer or authorized distributors?
All PDZ16B,135 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 PDZ16B,135 meets industry standards.
7.What is the process for return or replacement of PDZ16B,135?
All PDZ16B,135 units undergo pre-shipment inspection (PSI). If there is an issue with PDZ16B,135, 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 PDZ16B,135 part is unused and in its original packaging.
Return procedure for PDZ16B,135:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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