Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Nexperia USA Inc. NZX15B,133

Name: NZX15B,133
Brand: Nexperia USA Inc.
SKU: NZX15B,133
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: NZX15B,133

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: NZX15B,133.pdf

Description:: DIODE ZENER 14.8V 500MW ALF2

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:7,167

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

NZX15B,133 from Nexperia is a single Zener diode in a hermetically sealed SOD27 (SC-40) glass package, designed for precision voltage regulation and reference applications at 15 V nominal Zener voltage (V_Z = 14.5–15.1 V), with 40 Ω typical differential resistance (r_dif) at I_Z = 5 mA and ≤0.05 µA reverse leakage current (I_R). It operates across −55 °C to +175 °C ambient and supports general-purpose regulation in low-power analog circuits.

For engineers reviewing the NZX15B,133 datasheet, NZX15B,133 pinout, NZX15B,133 application, or NZX15B,133 equivalent, this device is selected for stable 15 V reference generation in power supply feedback paths, overvoltage clamping in sensor interfaces, and voltage threshold detection in industrial control modules where low thermal drift and hermetic reliability are required.

Technical Context

This Zener diode functions as a two-terminal voltage reference with cathode-anode polarity defined by a band marking. Its operation relies on controlled reverse breakdown at precisely specified V_Z, stabilized by low r_dif (40 Ω) and minimal temperature coefficient variation across I_Z = 5 mA.

Thermal performance is characterized by R_th(j-a) = 380 K/W (free air) and R_th(j-t) = 300 K/W, enabling reliable operation up to T_j = 175 °C when mounted on FR4 PCB with ≤8 mm lead length - critical for high-temperature industrial environments.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	14.5–15.1 V at I_Z = 5 mA - defines precise regulation point for 15 V reference design
Differential Resistance (r_dif)	40 Ω max at I_Z = 5 mA - ensures minimal output voltage shift under load current variation
Reverse Leakage Current (I_R)	≤0.05 µA at V_R = 10.5 V - enables ultra-low standby power in battery-backed circuits
Total Power Dissipation (P_tot)	500 mW at T_tp ≤ 25 °C - supports continuous operation in compact, unheatsinked layouts
Junction Temperature (T_j)	−65 to +175 °C - allows deployment in extended-temperature industrial and automotive under-hood zones
Package	SOD27 (SC-40) - hermetically sealed axial glass package providing long-term stability and moisture immunity

Pinout & Package

SOD27 (SC-40) is a small, axial-leaded, hermetically sealed glass package with 2 leads. The black band denotes the cathode terminal.

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

Key Features

Feature	Design Value
Hermetic glass sealing	Prevents moisture ingress and parameter drift over decades of operation in humid environments
Low differential resistance (40 Ω)	Minimizes regulation error under ±1 mA load current changes in feedback networks
Ultra-low leakage (≤0.05 µA)	Reduces quiescent current draw in always-on monitoring circuits without compromising accuracy
Wide operating temperature range	Enables use in industrial PLCs and outdoor instrumentation without derating below −40 °C or above +125 °C ambient

Applications

Power Supply Feedback Reference

Sensor Signal Clamping

Use Scenario: Stabilizing output voltage in linear regulator feedback loop using TL431 or discrete op-amp comparator.

IC Role / Device Role / Timing Role: Provides fixed 15 V reference against which output is compared; sets regulation setpoint.

Use Value: Enables ±1% output accuracy over line/load/temperature due to tight V_Z tolerance and low r_dif.

Use Scenario: Protecting ADC input pins from transient overvoltage in 4–20 mA current-loop sensor interfaces.

IC Role / Device Role / Timing Role: Acts as bidirectional clamp: forward-conducts at ~1.5 V, reverse-breaks at 15 V.

Use Value: Limits input to safe range without adding series resistance that degrades signal integrity.

Voltage Threshold Detection

Programmable Logic Supply Clamp

Use Scenario: Triggering reset or alarm when 24 V system rail drops below 15 V during brownout conditions.

IC Role / Device Role / Timing Role: Serves as precision shunt element in comparator-based undervoltage monitor circuit.

Use Value: Delivers repeatable 15 V trip point with <±0.3 V hysteresis achievable via resistor network.

Use Scenario: Preventing FPGA I/O bank overvoltage during hot-swap or power sequencing faults in 1.8/3.3 V systems.

IC Role / Device Role / Timing Role: Shunts excess energy to ground when V_CCIO exceeds 15 V due to backfeed or ESD.

Use Value: Survives repeated 15 V transients without degradation thanks to hermetic construction and 500 mW rating.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX55-C15	V_Z = 14.3–15.7 V (±5%), r_dif = 30 Ω max, P_tot = 500 mW, DO-35 package	Higher V_Z tolerance and plastic package reduce long-term stability vs. hermetic SOD27	Select when cost sensitivity outweighs lifetime calibration stability requirements
1N4744A	V_Z = 14–16 V (±5%), r_dif = 16 Ω max, P_tot = 1 W, DO-41 package	Higher power rating but larger footprint and higher leakage (≤5 µA) limits low-power use	Select only when >500 mW dissipation or PCB space permits DO-41 mounting

Compared with BZX55-C15 and 1N4744A, NZX15B,133 delivers tighter V_Z tolerance (±2%), lower leakage, and hermetic reliability - making it optimal for mission-critical 15 V references where calibration drift must be minimized over 10+ years.

Availability

NZX15B,133 is available at Aetrix Electronics and suitable for industrial power supplies, sensor interface protection, voltage monitoring circuits, and programmable logic supply clamping requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for NZX15B,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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and robustness for industrial, automotive, and consumer applications.

The NZX series targets general-purpose Zener regulation with hermetic stability, optimized for applications demanding long-term voltage reference integrity in harsh thermal and environmental conditions.

FAQ

What is the exact Zener voltage range for NZX15B,133 at 5 mA test current?

The guaranteed Zener voltage range is 14.5 V minimum to 15.1 V maximum at I_Z = 5 mA and T_j = 25 °C, per Table 8 of the official Nexperia datasheet Rev. 4 (2011). This ±2% tolerance is tighter than standard ±5% Zeners and reflects its B-grade selection.

Can NZX15B,133 be used in surface-mount designs?

No - NZX15B,133 uses the axial-leaded SOD27 (SC-40) glass package and is not compatible with SMT reflow processes. It requires through-hole mounting on FR4 PCB with ≤8 mm lead length for thermal compliance. For SMT alternatives, consider BZX384-B15 or MMBZ5245B.

How does the thermal resistance affect maximum power handling at elevated ambient temperatures?

With R_th(j-a) = 380 K/W, the junction-to-ambient rise is 190 °C at 500 mW. At T_amb = 75 °C, T_j reaches 265 °C - exceeding the 175 °C limit. Derating is required: max P_tot = (175 − T_amb) / 380 ≈ 263 mW at 75 °C ambient.

Is NZX15B,133 automotive qualified?

No - the datasheet explicitly states "Non-automotive qualified products" and confirms no AEC-Q200 qualification. It is rated for industrial temperature range (−55 °C to +175 °C) but lacks automotive-specific testing, traceability, or PPAP documentation required for vehicle applications.

NZX15B,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):: 14.8 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:: 175°C

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: ALF2

NZX15B,133 FAQ

1.How can I place an order for NZX15B,133 through Aetrix?

Please submit a Request for Quotation (RFQ) for NZX15B,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 NZX15B,133 reliable?

The price and inventory of NZX15B,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX15B,133 is usually 5 days.

3.What payment methods are accepted for NZX15B,133?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX15B,133 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NZX15B,133?

NZX15B,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NZX15B,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 NZX15B,133?

For technical support, including NZX15B,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX15B,133 requirements.

6.How does Aetrix verify that NZX15B,133 is sourced from the original manufacturer or authorized distributors?

All NZX15B,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 NZX15B,133 meets industry standards.

7.What is the process for return or replacement of NZX15B,133?

All NZX15B,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX15B,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 NZX15B,133 part is unused and in its original packaging.

Return procedure for NZX15B,133:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…