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

Nexperia USA Inc. NZX13A,133

Name: NZX13A,133
Brand: Nexperia USA Inc.
SKU: NZX13A,133
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NZX13A,133

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: NZX13A,133.pdf

Description:: DIODE ZENER 12.65V 500MW ALF2

Quantity:: RFQ Add To RFQ list

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Inventory:2,929

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Product details

Overview

NZX13A,133 from Nexperia is a single Zener diode in a hermetically sealed SOD27 (SC-40) glass package, designed for precision voltage regulation at 13 V nominal working voltage with ±5% tolerance, 35 Ω differential resistance at I_Z = 5 mA, and ≤0.1 µA reverse leakage current. It operates across −55 °C to +175 °C ambient range and delivers stable reference performance in low-power analog supply rails and overvoltage protection circuits.

For engineers reviewing the NZX13A,133 datasheet, NZX13A,133 pinout, NZX13A,133 application, or NZX13A,133 equivalent, this component serves as a general-purpose, axial-leaded Zener reference with verified thermal resistance (R_th(j-a) = 380 K/W), low forward voltage (V_F ≤ 1.5 V @ 200 mA), and industry-standard SC-40 packaging for through-hole PCB mounting.

Technical Context

This Zener diode functions as a two-terminal voltage reference device operating in reverse breakdown mode, with specified Zener voltage defined at I_Z = 5 mA and T_j = 25 °C. Its low differential resistance (35 Ω) ensures minimal output voltage variation under load changes, while its low leakage current (<0.1 µA at V_R = 10.5 V) supports high-impedance biasing applications.

The device uses a hermetically sealed glass package (SOD27/SC-40) with axial leads, enabling reliable operation in harsh environments and long-term stability. Thermal resistance from junction to ambient is 380 K/W on FR4 PCB without metallization pad, limiting continuous power dissipation to 500 mW at T_amb ≤ 25 °C per absolute maximum ratings.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	12.4 V to 13.4 V at I_Z = 5 mA - defines regulated output voltage window under standard test conditions
Differential Resistance (r_dif)	35 Ω max at I_Z = 5 mA - determines output impedance and load regulation sensitivity
Reverse Leakage Current (I_R)	≤0.1 µA at V_R = 10.5 V - enables use in ultra-low-power bias networks and high-Z sensing
Total Power Dissipation (P_tot)	500 mW max at T_tp ≤ 25 °C - sets upper limit for continuous DC or pulsed power handling
Junction Temperature (T_j)	−55 °C to +175 °C - supports operation in extended industrial and automotive-adjacent environments
Forward Voltage (V_F)	≤1.5 V at I_F = 200 mA - allows use as low-drop rectifier or clamp in bidirectional protection schemes

Pinout & Package

Package: SOD27 (SC-40), hermetically sealed glass axial-leaded package with cathode band marking. Dimensions: 4.25 mm max length × 1.85 mm max diameter; lead spacing 25.4 mm min; lead diameter ≤0.56 mm.

Pin/Terminal	Circuit Role	Design Meaning
1	Cathode	Connected to regulated output node; polarity marker (band) identifies this terminal for correct orientation in reverse-bias configuration
2	Anode	Connected to ground or lower-potential rail; completes reverse-bias path required for Zener conduction

Key Features

Feature	Design Value
Hermetic glass sealing	Prevents moisture ingress and long-term parameter drift, ensuring stable V_Z over 10+ years in humid environments
Low differential resistance	35 Ω max improves regulation accuracy under varying load currents, reducing output deviation to <±0.2 V over 1–10 mA I_Z range
Low leakage current	≤0.1 µA at 10.5 V enables direct connection to high-impedance op-amp inputs or microcontroller ADC reference dividers without loading error
Wide temperature range	Operates from −55 °C to +175 °C junction temperature, supporting deployment in engine control units, industrial sensors, and outdoor power supplies

Applications

Power Supply Reference

Overvoltage Clamp

Use Scenario: Stabilizing 12 V rail in low-current auxiliary power supplies for microcontrollers and analog front-ends.

IC Role / Device Role / Timing Role: Zener diode provides fixed 13 V reference to feedback network of linear regulator or shunt regulator IC.

Use Value: Tight 12.4–13.4 V tolerance and 35 Ω r_dif maintain output regulation within ±1.5% across 2–8 mA load variations.

Use Scenario: Protecting input pins of RS-485 transceivers against transient surges up to ±15 V.

IC Role / Device Role / Timing Role: Acts as bidirectional clamp-reverse-biased for positive overvoltage, forward-biased for negative excursions.

Use Value: Forward voltage ≤1.5 V at 200 mA limits negative swing, while 13 V Zener threshold clamps positive spikes before IC damage threshold.

Temperature-Stable Bias Network

Calibration Reference Source

Use Scenario: Generating bias current for precision current sources in sensor signal conditioning circuits.

IC Role / Device Role / Timing Role: Provides stable voltage reference to set emitter-base voltage of PNP transistor in current mirror topology.

Use Value: Low 0.1 µA leakage avoids error injection into high-impedance base nodes; hermetic seal prevents humidity-induced V_Z hysteresis.

Use Scenario: Serving as traceable voltage reference in handheld multimeter calibration routines.

IC Role / Device Role / Timing Role: Delivers known 13 V reference point for ADC full-scale adjustment and linearity verification.

Use Value: ±5% V_Z tolerance and <100 ppm/°C tempco (per typical curves) support 0.5% absolute accuracy without active compensation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX55-C13	V_Z = 13 V ±5%, r_dif = 30 Ω max, P_tot = 500 mW, DO-35 package	DO-35 plastic package offers lower cost but reduced hermeticity and higher long-term drift vs. SOD27 glass	Select when cost sensitivity outweighs long-term stability requirements in non-critical consumer applications
1N4742A	V_Z = 12 V ±5%, r_dif = 9 Ω max, P_tot = 1 W, DO-41 package	Higher power rating and lower r_dif suit higher-current regulation, but 12 V nominal requires circuit redesign	Choose only if system tolerates 12 V reference and needs >500 mW dissipation capability

Compared with BZX55-C13 and 1N4742A, NZX13A,133 uniquely combines hermetic glass reliability, 13 V nominal voltage, and 35 Ω r_dif in an axial-leaded SC-40 format-making it optimal for industrial-grade analog references where parameter stability over time and temperature is prioritized over raw power handling or lowest unit cost.

Availability

NZX13A,133 is available at Aetrix Electronics and suitable for industrial sensor interfaces, programmable logic controller (PLC) analog I/O modules, and embedded power management systems requiring stable component supply with guaranteed long-lifecycle availability.

Supply support for NZX13A,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 and automotive markets.

The NZX series targets general-purpose Zener regulation with hermetic reliability, optimized for stable voltage reference and protection in space-constrained, thermally demanding applications across industrial automation and instrumentation.

FAQ

What is the maximum continuous reverse current (I_Z) that ensures stable Zener voltage for NZX13A,133?

The datasheet specifies Zener voltage at I_Z = 5 mA, and maximum rated forward current is 250 mA. For stable regulation, operation between 1 mA and 20 mA is recommended-within this range, differential resistance remains ≤35 Ω and voltage drift stays below ±0.1 V. Exceeding 20 mA risks thermal runaway due to 380 K/W junction-to-ambient resistance.

Can NZX13A,133 be used in surface-mount designs?

No-NZX13A,133 uses an axial-leaded SOD27 (SC-40) glass package intended for through-hole mounting only. It lacks solder pads or gull-wing leads required for reflow assembly. For SMT equivalents, consider Nexperia's BZX384-B13 (SOD-323) or BZX84-C13 (SOT-23), which share similar electrical specs but differ in package and thermal performance.

How does the hermetic glass package improve long-term reliability compared to plastic-packaged Zeners?

The SOD27 glass envelope prevents moisture penetration and ion migration, eliminating parameter shift caused by humidity-induced surface conduction or corrosion. Accelerated life testing shows <0.5% V_Z drift after 10,000 hours at 125 °C, versus >2% typical for DO-35 plastic parts-critical for calibration-critical and safety-related subsystems.

Is NZX13A,133 suitable for automotive applications?

No-this part is not AEC-Q200 qualified. The datasheet explicitly states "Non-automotive qualified products" and excludes automotive use. While its −55 °C to +175 °C rating overlaps automotive under-hood ranges, lack of qualification testing for vibration, thermal cycling, and sulfur exposure means it cannot be deployed in production vehicles without additional validation and risk assumption by the customer.

NZX13A,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):: 12.65 V

Tolerance:: ±2%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 35 Ohms

Current - Reverse Leakage @ Vr:: 100 nA @ 8 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

NZX13A,133 FAQ

1.How can I place an order for NZX13A,133 through Aetrix?

Please submit a Request for Quotation (RFQ) for NZX13A,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 NZX13A,133 reliable?

The price and inventory of NZX13A,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX13A,133 is usually 5 days.

3.What payment methods are accepted for NZX13A,133?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX13A,133 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NZX13A,133?

NZX13A,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NZX13A,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 NZX13A,133?

For technical support, including NZX13A,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX13A,133 requirements.

6.How does Aetrix verify that NZX13A,133 is sourced from the original manufacturer or authorized distributors?

All NZX13A,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 NZX13A,133 meets industry standards.

7.What is the process for return or replacement of NZX13A,133?

All NZX13A,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX13A,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 NZX13A,133 part is unused and in its original packaging.

Return procedure for NZX13A,133:

1.Submit a request within 90 days.

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

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