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

Nexperia USA Inc. NZX15A,133

Name: NZX15A,133
Brand: Nexperia USA Inc.
SKU: NZX15A,133
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NZX15A,133

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

Package:: DO-204AH, DO-35, Axial

Datasheet:: NZX15A,133.pdf

Description:: DIODE ZENER 14.4V 500MW ALF2

Quantity:: RFQ Add To RFQ list

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Inventory:9,885

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Product details

Overview

NZX15A,133 from Nexperia is a single Zener diode in a hermetically sealed SOD27 (SC-40) glass package, designed for precision voltage regulation at 15 V nominal working voltage with ±3% tolerance (14.1–14.7 V), 40 Ω differential resistance at I_Z = 5 mA, and ≤0.05 µA reverse leakage current. It delivers stable reference performance in low-power analog circuits, power supply feedback loops, and overvoltage protection stages.

For engineers reviewing the NZX15A,133 datasheet, NZX15A,133 pinout, NZX15A,133 application, or NZX15A,133 equivalent, this component supports design validation of 15 V reference stability, thermal derating under ambient conditions up to +175 °C, and compliance with IEC 60134 absolute maximum ratings including 500 mW total power dissipation and 175 °C junction temperature.

Technical Context

This Zener diode operates in reverse breakdown mode with a specified test current of 5 mA, delivering a tightly controlled 15 V nominal Zener voltage (V_Z) across its cathode-anode terminals. Its low differential resistance (40 Ω) ensures minimal output voltage variation under load changes, while its low leakage current (<0.05 µA at V_R = 10.5 V) preserves accuracy in high-impedance bias networks.

The device uses axial-leaded SOD27 packaging with hermetic glass sealing, enabling reliable operation in harsh environments. Thermal resistance from junction to ambient is 380 K/W on FR4 PCB without metallization pad, defining its power handling capability under natural convection cooling.

Key Specifications

Parameter	Value and Actual Design Meaning
V_Z (Nominal)	15 V - precise DC voltage reference point at I_Z = 5 mA
V_Z Tolerance	±3% (14.1–14.7 V) - ensures predictable regulation window for feedback design
r_dif	40 Ω - low dynamic impedance minimizes output voltage drift under varying load current
I_R @ V_R = 10.5 V	≤0.05 µA - ultra-low reverse leakage preserves reference accuracy in high-Z circuits
P_tot	500 mW - maximum continuous power dissipation at T_amb ≤25 °C
T_j Max	175 °C - enables operation in extended-temperature industrial environments
R_th(j-a)	380 K/W - defines thermal derating slope for safe operation above 25 °C ambient

Pinout & Package

Package: SOD27 (SC-40), hermetically sealed axial-leaded glass package with cathode band marking.

Pin/Terminal	Circuit Role	Design Meaning
1 (banded end)	Cathode	Connected to regulated output node; reverse-biased terminal during Zener operation
2 (non-banded end)	Anode	Connected to ground or lower-potential rail; completes reverse-bias path

Key Features

Feature	Design Value
Hermetic glass sealing	Prevents moisture ingress and long-term parameter drift in humid or corrosive environments
Low differential resistance	40 Ω at 5 mA enables tight regulation in feedback paths with variable current draw
Ultra-low reverse leakage	≤0.05 µA at 10.5 V maintains reference integrity in high-impedance divider networks
Wide operating temperature range	−65 °C to +175 °C storage and −55 °C to +175 °C ambient operation support industrial deployment

Applications

Power Supply Feedback Regulation

Overvoltage Clamp Protection

Use Scenario: Stabilizing output voltage in linear regulators or switching converter feedback loops.

IC Role / Device Role / Timing Role: Provides precise 15 V reference to error amplifier input for closed-loop control.

Use Value: 40 Ω r_dif limits output deviation to <±60 mV under ±1.5 mA load variation, ensuring stable regulation.

Use Scenario: Limiting transient voltage spikes on 12 V rail inputs to protect downstream ICs.

IC Role / Device Role / Timing Role: Acts as shunt clamp, conducting excess energy when voltage exceeds 15 V threshold.

Use Value: 500 mW P_tot rating allows brief 100 ms clamping at 33 mA without thermal failure.

Reference Voltage Source

Signal Level Translation

Use Scenario: Generating stable 15 V bias for op-amp input stages or ADC reference buffers.

IC Role / Device Role / Timing Role: Supplies low-drift DC reference in analog front-end circuits.

Use Value: ≤0.05 µA I_R prevents loading errors in 1 MΩ+ bias networks, preserving accuracy.

Use Scenario: Shifting logic-level signals between 3.3 V/5 V domains and 15 V analog subsystems.

IC Role / Device Role / Timing Role: Clamps negative excursions and sets positive rail limit for level-shifter interface.

Use Value: Cathode-anode polarity and 15 V V_Z define unidirectional clipping boundary for bidirectional signal conditioning.

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	Same 15 V nominal V_Z, but higher r_dif (≥50 Ω) and higher I_R (≤5 µA at 12 V)	Less suitable for high-accuracy feedback; acceptable for coarse clamping	Select when cost sensitivity outweighs regulation precision requirements
1N4744A	15 V V_Z, higher P_tot (1 W), larger DO-41 package, r_dif ≈ 14 Ω	Better thermal performance at high current, but incompatible with SOD27 board space	Select when >500 mW continuous dissipation or lower impedance is required

Compared with BZX55-C15 and 1N4744A, NZX15A,133 offers superior leakage control and compact SOD27 footprint for space-constrained designs, while trading off power headroom and ultra-low impedance against the 1N4744A's higher rating.

Availability

NZX15A,133 is available at Aetrix Electronics and suitable for power supply feedback regulation, overvoltage clamp protection, and reference voltage source applications requiring stable component supply, consistent parametric performance, and long-term obsolescence management.

Supply support for NZX15A,133 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, serving automotive, industrial, and consumer markets with robust, scalable components.

The NZX series targets general-purpose Zener regulation with hermetic reliability, optimized for cost-sensitive yet thermally demanding applications where long-term parameter stability is critical.

FAQ

What is the Zener voltage tolerance for NZX15A,133?

The NZX15A,133 has a nominal Zener voltage of 15 V with a tolerance of ±3%, corresponding to a guaranteed range of 14.1 V to 14.7 V at I_Z = 5 mA and T_j = 25 °C. This tolerance is defined per Table 8 in the Nexperia datasheet Rev. 4 and applies to all units within specification.

Can NZX15A,133 be used in surface-mount assemblies?

No - NZX15A,133 uses an axial-leaded SOD27 (SC-40) glass package with leads extending from opposite ends, requiring through-hole mounting on PCBs. It is not compatible with reflow soldering or pick-and-place automation for SMT lines.

What is the maximum reverse voltage before breakdown?

The maximum non-breakdown reverse voltage (V_R) is 10.5 V, specified as the voltage at which reverse current remains ≤0.05 µA. Operation above this voltage initiates controlled Zener conduction; sustained reverse bias beyond V_Z must respect power and thermal limits.

How does thermal resistance affect derating at elevated ambient temperatures?

With R_th(j-a) = 380 K/W on FR4, power dissipation must be linearly derated above 25 °C ambient: P_derated = 500 mW × (1 − (T_amb − 25)/150). At 100 °C ambient, max allowable P_tot drops to 250 mW to maintain T_j ≤175 °C.

NZX15A,133 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: NZX

Package/Case:: DO-204AH, DO-35, Axial

Packaging:: Cut Tape (CT)

Product Status:: Active

Voltage - Zener (Nom) (Vz):: 14.4 V

Tolerance:: ±2%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 40 Ohms

Current - Reverse Leakage @ Vr:: 50 nA @ 10.5 V

Voltage - Forward (Vf) (Max) @ If:: 1.5 V @ 200 mA

Operating Temperature:: -55°C ~ 175°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: ALF2

NZX15A,133 FAQ

1.How can I place an order for NZX15A,133 through Aetrix?

Please submit a Request for Quotation (RFQ) for NZX15A,133 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 NZX15A,133 reliable?

The price and inventory of NZX15A,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX15A,133 is usually 5 days.

3.What payment methods are accepted for NZX15A,133?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX15A,133 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NZX15A,133?

NZX15A,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NZX15A,133 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 NZX15A,133?

For technical support, including NZX15A,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX15A,133 requirements.

6.How does Aetrix verify that NZX15A,133 is sourced from the original manufacturer or authorized distributors?

All NZX15A,133 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 NZX15A,133 meets industry standards.

7.What is the process for return or replacement of NZX15A,133?

All NZX15A,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX15A,133, 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 NZX15A,133 part is unused and in its original packaging.

Return procedure for NZX15A,133:

1.Submit a request within 90 days.

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

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