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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Nexperia USA Inc. PDZ16BZ

Name: PDZ16BZ
Brand: Nexperia USA Inc.
SKU: PDZ16BZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PDZ16BZ

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SC-76, SOD-323

Datasheet:: PDZ16BZ.pdf

Description:: DIODE ZENER 16V 400MW SOD323

Quantity:: RFQ Add To RFQ list

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Inventory:29,540

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Product details

Overview

PDZ16BZ 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 I_Z = 5 mA, and 0.05 μA max reverse leakage at V_R = 12 V - used in power supply reference and overvoltage protection circuits.

For engineers reviewing the PDZ16BZ datasheet, PDZ16BZ pinout, PDZ16BZ application, or PDZ16BZ equivalent, this page delivers verified electrical specs, thermal behavior on FR4 PCB, cathode/anode terminal mapping, and real-world design context for low-current voltage clamping and stabilization.

Technical Context

This Zener operates in reverse breakdown mode with a nominal V_Z of 15.85–16.51 V at I_Z = 5 mA, exhibiting a positive temperature coefficient of +12.0 to +12.4 mV/K. Its hard breakdown knee and low dynamic impedance enable stable regulation under light-load conditions.

Thermal performance is defined by R_th(j-a) = 340 K/W on standard FR4 PCB and R_th(j-sp) = 130 K/W to solder point. Maximum continuous power dissipation is 400 mW at T_amb ≤ 25 °C, derating linearly above that temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
V_Z (nominal)	16 V - precise DC reference voltage at 5 mA test current
V_Z range	15.85–16.51 V - guaranteed regulation band at I_Z = 5 mA
r_dif	≤ 80 Ω - low dynamic impedance ensures minimal output voltage variation with load current changes
I_R @ V_R = 12 V	≤ 0.05 μA - ultra-low leakage preserves battery life in standby circuits
P_tot	400 mW - maximum steady-state power handling on standard FR4 PCB
T_j max	+150 °C - junction temperature limit defining safe operating area
C_d @ 1 MHz	97 pF - small junction capacitance supports high-frequency noise suppression

Pinout & Package

PDZ16BZ uses the SOD323 (SC-76) surface-mount plastic package: 1.35–1.6 mm length, 0.8–1.1 mm width, 0.4–0.45 mm height, with cathode indicated by a marking bar on the device body.

Pin/Terminal	Circuit Role	Design Meaning
1	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
Low dynamic impedance	≤80 Ω at 5 mA enables tight voltage regulation under varying load
Hard breakdown knee	Sharp, well-defined reverse conduction onset improves turn-on predictability in clamp circuits
Ultra-low leakage	≤0.05 μA at 12 V supports energy-sensitive applications like battery-backed systems
SOD323 footprint	0.8 × 1.35 mm outline allows high-density PCB layout in space-constrained designs
±2 % V_Z tolerance	Narrow voltage spread reduces need for post-production trimming in reference circuits

Applications

Power Supply Reference

Overvoltage Clamp

Use Scenario: Providing stable 16 V reference for LDO feedback networks or ADC voltage references in industrial sensor modules.

IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference potential relative to ground.

Use Value: Delivers <±2 % accuracy and <80 Ω dynamic impedance, minimizing drift across temperature and load variations.

Use Scenario: Protecting microcontroller I/O pins from transient surges exceeding 16 V in automotive body control units.

IC Role / Device Role / Timing Role: Voltage-clamping element shunting excess energy to ground during ESD or load-dump events.

Use Value: Fast response with hard breakdown knee limits clamping voltage to ≤16.51 V, preserving downstream IC integrity.

Battery Voltage Monitor

Signal Level Shifter

Use Scenario: Detecting end-of-charge condition in 16 V lithium-iron-phosphate battery packs via comparator threshold setting.

IC Role / Device Role / Timing Role: Precision voltage threshold generator referenced to system ground.

Use Value: Low 0.05 μA leakage avoids measurable discharge during multi-week storage periods.

Use Scenario: Translating 3.3 V logic signals to 16 V levels for driving external analog switches or optocouplers.

IC Role / Device Role / Timing Role: Bidirectional level translator using forward conduction (0.9 V drop) and reverse Zener action (16 V clamp).

Use Value: Dual-mode operation enabled by symmetric anode/cathode structure and low forward voltage.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener regulation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX384-B16	Same V_Z range (15.8–16.5 V), but SOD323 package with ±5 % tolerance and higher r_dif (≤100 Ω)	Less precise regulation; suitable only where ±5 % tolerance is acceptable	Select when cost sensitivity outweighs voltage accuracy requirements
MMSZ4687	16 V nominal, SOD-123 package, ±5 % tolerance, r_dif ≤ 120 Ω, P_tot = 350 mW	Larger footprint and lower power rating limit use in compact, high-stress layouts	Choose only if SOD-123 is already standardized in the PCB stack-up

Compared with BZX384-B16 and MMSZ4687, PDZ16BZ offers tighter ±2 % tolerance, lower 80 Ω dynamic impedance, and full 400 mW rating - making it optimal for precision reference and high-reliability clamp roles where stability and leakage matter.

Availability

PDZ16BZ is available at Aetrix Electronics and suitable for power supply reference, overvoltage clamp, and battery voltage monitor applications requiring stable component supply, consistent parametric performance, and long-term obsolescence management.

Supply support for PDZ16BZ 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 and industrial-grade components.

PDZ16BZ belongs to the PDZ-B series of low-power Zener diodes engineered for general-purpose voltage regulation in space-constrained consumer, industrial, and computing applications - emphasizing precision, low leakage, and robust SMD manufacturability.

FAQ

What is the maximum reverse current PDZ16BZ can handle in non-repetitive surge conditions?

PDZ16BZ supports up to 1.5 A non-repetitive peak reverse current (I_ZSM) at t_p = 100 μs and T_amb = 25 °C, as specified in Table 8. This rating enables effective transient suppression without permanent degradation when used within pulse duration and thermal recovery limits.

How does PDZ16BZ behave thermally on a standard FR4 PCB?

On a single-sided, tin-plated FR4 PCB with standard footprint, PDZ16BZ exhibits R_th(j-a) = 340 K/W and R_th(j-sp) = 130 K/W. At 400 mW dissipation, junction-to-ambient rise reaches ~136 °C - requiring ambient derating above 25 °C per Figure 1 to maintain T_j ≤ 150 °C.

Is PDZ16BZ suitable for bidirectional signal clamping?

Yes - its symmetrical construction allows forward conduction (V_F ≤ 0.9 V at 10 mA) and reverse Zener action (V_Z ≈ 16 V). Used with series resistance, it provides dual-rail clamping for analog signals crossing 0 V to 16 V, confirmed by Figures 2 and 7 in the datasheet.

What marking code identifies PDZ16BZ on the device body?

PDZ16BZ is marked with "ZL" on the top surface of the SOD323 package, as listed in Table 4. The bar adjacent to the marking denotes the cathode (Pin 1), enabling unambiguous orientation during automated placement and manual inspection.

PDZ16BZ 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):: 80 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

PDZ16BZ FAQ

1.How can I place an order for PDZ16BZ through Aetrix?

Please submit a Request for Quotation (RFQ) for PDZ16BZ 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 PDZ16BZ reliable?

The price and inventory of PDZ16BZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PDZ16BZ is usually 5 days.

3.What payment methods are accepted for PDZ16BZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ16BZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PDZ16BZ?

PDZ16BZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PDZ16BZ 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 PDZ16BZ?

For technical support, including PDZ16BZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ16BZ requirements.

6.How does Aetrix verify that PDZ16BZ is sourced from the original manufacturer or authorized distributors?

All PDZ16BZ 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 PDZ16BZ meets industry standards.

7.What is the process for return or replacement of PDZ16BZ?

All PDZ16BZ units undergo pre-shipment inspection (PSI). If there is an issue with PDZ16BZ, 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 PDZ16BZ part is unused and in its original packaging.

Return procedure for PDZ16BZ:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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