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

Nexperia USA Inc. PDZ15B/DG/B4X

Name: PDZ15B/DG/B4X
Brand: Nexperia USA Inc.
SKU: PDZ15B/DG/B4X
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PDZ15B/DG/B4X

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: SC-76, SOD-323

Datasheet:: PDZ15B/DG/B4X.pdf

Description:: DIODE ZENER 15V 400MW SOD323

Quantity:: RFQ Add To RFQ list

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Inventory:8,684

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Product details

Overview

PDZ15B/DG/B4X from Nexperia is a 15 V, 400 mW Zener diode with ±5% tolerance, 5 µA maximum reverse leakage at 11.4 V, and 30 Ω dynamic impedance, used for voltage regulation and overvoltage protection in low-power analog sensor interfaces.

For engineers reviewing the PDZ15B/DG/B4X datasheet, PDZ15B/DG/B4X pinout, PDZ15B/DG/B4X application, or PDZ15B/DG/B4X equivalent, key selection criteria include Zener voltage accuracy, power dissipation limit, thermal resistance, and SOD-123 package compatibility with automated PCB assembly.

Technical Context

This Zener diode operates in reverse breakdown to maintain stable reference voltage under varying load and temperature conditions. Its 400 mW power rating and 30 Ω dynamic impedance support precision regulation in bias networks and feedback paths.

The device features a silicon planar epitaxial construction with a typical junction capacitance of 50 pF at 0 V and thermal resistance of 375 K/W from junction to ambient, enabling reliable operation in compact surface-mount layouts.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	15 V ±5% - defines regulated output voltage in shunt regulator circuits
Power Dissipation (P_tot)	400 mW - sets maximum continuous DC power handling at T_amb = 25°C
Dynamic Impedance (Z_Z)	30 Ω at I_Z = 5 mA - determines voltage regulation sensitivity to current variation
Reverse Leakage (I_R)	≤5 µA at V_R = 11.4 V - ensures minimal quiescent current in standby mode
Junction-to-Ambient R_thJA	375 K/W - limits allowable power before exceeding 150°C junction temperature
Capacitance (C_j)	50 pF at V_R = 0 V - affects high-frequency noise filtering capability

Pinout & Package

SOD-123 surface-mount plastic package with cathode band marking; two-terminal device requiring no external biasing.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward conduction terminal	Connected to lower potential side in reverse-biased Zener configuration
Cathode	Reverse breakdown terminal	Connected to higher potential side; voltage reference point in shunt regulation

Key Features

Feature	Design Value
Low dynamic impedance	30 Ω enables tight voltage regulation under load transients
Tight voltage tolerance	±5% reduces need for post-regulation trimming in precision references
Low leakage current	≤5 µA at 11.4 V minimizes error in high-impedance feedback networks
SOD-123 footprint	Compatible with standard 0805 reflow profiles and AOI inspection

Applications

Industrial Sensor Signal Conditioning

USB-C Power Delivery Reference

Use Scenario: Stabilizing reference voltage for 12-bit ADC biasing in temperature transmitters.

IC Role / Device Role / Timing Role: Zener voltage reference providing stable 15 V rail for op-amp input stage.

Use Value: ±5% tolerance and 30 Ω Z_Z ensure <0.1% full-scale error contribution to measurement chain.

Use Scenario: Overvoltage clamp on VCONN line in USB-C cable assemblies.

IC Role / Device Role / Timing Role: Transient suppression element limiting VCONN to safe 15 V during hot-plug events.

Use Value: 400 mW rating handles short-duration 1 A surge without thermal runaway.

Automotive Cabin Control Panel

IoT Node Battery Monitoring

Use Scenario: Regulating 15 V supply for microcontroller reset circuitry in HVAC control modules.

IC Role / Device Role / Timing Role: Shunt regulator maintaining clean reset threshold despite battery voltage fluctuations.

Use Value: 375 K/W R_thJA allows operation up to 105°C ambient without derating.

Use Scenario: Providing reference voltage for Li-ion cell voltage monitoring in BLE-enabled trackers.

IC Role / Device Role / Timing Role: Low-leakage Zener establishing accurate 15 V reference for comparator hysteresis.

Use Value: ≤5 µA I_R extends battery life by minimizing standby current draw.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX55-C15	500 mW rating, ±5% tolerance, 35 Ω Z_Z, DO-35 package	Through-hole mounting; higher thermal mass but incompatible with SMT lines	Select for prototyping or legacy through-hole designs where reflow compatibility is not required
MMSZ5245B	500 mW rating, ±5% tolerance, 17 Ω Z_Z, SOD-123 package	Lower dynamic impedance improves regulation but increases cost	Select when tighter voltage stability under load variation is critical and budget permits

Compared with PDZ15B/DG/B4X, BZX55-C15 offers higher power but requires manual soldering, while MMSZ5245B matches the SOD-123 footprint with superior Z_Z at higher cost-making PDZ15B/DG/B4X optimal for cost-sensitive, high-volume SMT production with moderate regulation demands.

Availability

PDZ15B/DG/B4X is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, USB-C power delivery reference, automotive cabin control panels, and IoT node battery monitoring requiring stable component supply across extended temperature ranges.

Supply support for PDZ15B/DG/B4X 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 devices optimized for reliability and energy efficiency.

PDZ15B/DG/B4X belongs to the PDZ series of general-purpose Zener diodes designed specifically for voltage regulation and overvoltage protection in space-constrained, high-reliability consumer and industrial applications.

FAQ

What is the maximum reverse voltage that PDZ15B/DG/B4X can withstand before breakdown?

PDZ15B/DG/B4X has a nominal Zener voltage of 15 V with ±5% tolerance, meaning breakdown occurs between 14.25 V and 15.75 V. The device is rated for continuous operation only within this specified range; applying voltage significantly above 15.75 V risks irreversible damage due to excessive power dissipation beyond its 400 mW limit.

Can PDZ15B/DG/B4X be used in parallel for higher current handling?

No-parallel connection of Zener diodes is not recommended due to mismatched breakdown voltages causing uneven current sharing. Even small variations in V_Z (±5%) result in one device conducting most of the current, leading to thermal runaway. For higher current needs, use a single higher-power Zener or an active regulator topology instead.

Is PDZ15B/DG/B4X suitable for automotive AEC-Q200 compliance?

PDZ15B/DG/B4X is not AEC-Q200 qualified. It meets industrial-grade specifications (–65°C to +150°C operating range) but lacks the stress testing, failure analysis, and qualification documentation required for automotive applications. For AEC-Q200-compliant alternatives, consider Nexperia's PZU series or ON Semiconductor's 1N4744A-Q.

How does the SOD-123 package affect thermal performance compared to DO-35?

The SOD-123 package has higher thermal resistance (375 K/W) than DO-35 (500 K/W), meaning it dissipates heat less efficiently. However, its smaller size and surface-mount compatibility enable better board-level thermal coupling to copper pours, which can offset the disadvantage in well-designed layouts with adequate PCB copper area.

PDZ15B/DG/B4X 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):: 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/B4X FAQ

1.How can I place an order for PDZ15B/DG/B4X through Aetrix?

Please submit a Request for Quotation (RFQ) for PDZ15B/DG/B4X 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/B4X reliable?

The price and inventory of PDZ15B/DG/B4X 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/B4X is usually 5 days.

3.What payment methods are accepted for PDZ15B/DG/B4X?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PDZ15B/DG/B4X transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PDZ15B/DG/B4X?

PDZ15B/DG/B4X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PDZ15B/DG/B4X 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/B4X?

For technical support, including PDZ15B/DG/B4X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PDZ15B/DG/B4X requirements.

6.How does Aetrix verify that PDZ15B/DG/B4X is sourced from the original manufacturer or authorized distributors?

All PDZ15B/DG/B4X 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/B4X meets industry standards.

7.What is the process for return or replacement of PDZ15B/DG/B4X?

All PDZ15B/DG/B4X units undergo pre-shipment inspection (PSI). If there is an issue with PDZ15B/DG/B4X, 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/B4X part is unused and in its original packaging.

Return procedure for PDZ15B/DG/B4X:

1.Submit a request within 90 days.

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

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