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

Nexperia USA Inc. NZX11A,133

Name: NZX11A,133
Brand: Nexperia USA Inc.
SKU: NZX11A,133
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NZX11A,133

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: NZX11A,133.pdf

Description:: DIODE ZENER 10.6V 500MW ALF2

Quantity:: RFQ Add To RFQ list

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Inventory:9,776

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Product details

Overview

NZX11A,133 from Nexperia is a single Zener diode in a hermetically sealed SOD27 (SC-40) glass package, designed for precision voltage regulation at 11 V nominal working voltage with ±5% tolerance (10.4 V to 11.6 V), 25 Ω typical differential resistance at I_Z = 5 mA, and ≤0.1 µA reverse leakage current at V_R = 8.8 V - deployed in low-power reference and overvoltage clamp circuits within industrial sensor signal conditioning modules.

For engineers reviewing the NZX11A,133 datasheet, NZX11A,133 pinout, NZX11A,133 application, or NZX11A,133 equivalent, this part supports stable 11 V regulation under 5 mA test current, features low thermal resistance (300 K/W junction-to-tie-point), and is optimized for ambient temperature operation from −55 °C to +175 °C in non-automotive embedded systems.

Technical Context

This Zener diode operates in reverse breakdown mode with a specified nominal Zener voltage of 11 V at I_Z = 5 mA, exhibiting a temperature coefficient of approximately −2 mV/K near this current. Its low differential resistance (25 Ω typ.) ensures minimal output voltage variation under load changes.

The device uses axial-leaded SOD27 packaging with cathode indicated by a band, enabling through-hole mounting on FR4 PCBs without metallization pads. Thermal performance is characterized by R_th(j-a) = 380 K/W (free air) and R_th(j-t) = 300 K/W, supporting reliable operation up to T_j = 175 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	11 V nominal at I_Z = 5 mA; range 10.4–11.6 V defines tight regulation window for reference stability
Differential Resistance r_dif	25 Ω typical at I_Z = 5 mA; enables <1% output deviation across ±1 mA load shifts
Reverse Leakage I_R	≤0.1 µA at V_R = 8.8 V; ensures negligible quiescent current in standby clamp configurations
Power Dissipation P_tot	500 mW maximum at T_tp ≤ 25 °C; supports continuous operation in compact industrial enclosures
Junction Temperature T_j	−55 °C to +175 °C operating range; validated for extended-life deployment in high-temperature control cabinets
Thermal Resistance R_th(j-t)	300 K/W junction-to-tie-point; allows direct thermal coupling to PCB copper for passive heat management

Pinout & Package

Package: SOD27 (SC-40), hermetically sealed axial-leaded glass package with 2 leads; cathode identified by a color band.

Pin/Terminal	Circuit Role	Design Meaning
1	Cathode	Connected to regulated output node; polarity marking determines correct orientation in shunt regulator topology
2	Anode	Connected to ground or common reference; completes reverse-bias path for Zener conduction

Key Features

Feature	Design Value
Hermetic glass sealing	Prevents moisture ingress and long-term parameter drift in humid industrial environments
Low differential resistance	25 Ω typical enables stable 11 V reference under dynamic load transients in analog front-ends
Low leakage current	≤0.1 µA at 80% V_Z minimizes power loss in battery-backed or energy-harvesting circuits
Wide temperature range	−55 °C to +175 °C operation supports use in motor drive control boards and HVAC controllers

Applications

Industrial Sensor Reference

Overvoltage Clamp

Use Scenario: Providing stable 11 V reference for 12-bit ADC biasing in pressure transducer signal chains.

IC Role / Device Role / Timing Role: Shunt voltage reference maintaining excitation rail accuracy within ±0.5% over temperature.

Use Value: Enables sub-0.1% full-scale error in calibrated sensor outputs due to tight V_Z tolerance and low r_dif.

Use Scenario: Clamping transient surges on 12 V supply rails in PLC I/O modules exposed to inductive switching noise.

IC Role / Device Role / Timing Role: Fast-acting crowbar element limiting rail voltage to 11.6 V peak during ESD or inductive kick events.

Use Value: Prevents downstream LDO damage by clamping within 10 ns response time and sustaining 250 mA forward surge current.

Low-Power Voltage Monitor

Microcontroller Reset Circuit

Use Scenario: Detecting brown-out conditions in battery-powered remote telemetry nodes operating from 9–13 V Li-ion packs.

IC Role / Device Role / Timing Role: Zener-based comparator input threshold set at 10.4 V to trigger system shutdown before critical undervoltage.

Use Value: Achieves 5 µA total monitoring current draw while delivering 50 mV hysteresis via resistor divider feedback.

Use Scenario: Generating clean reset pulses for ARM Cortex-M0+ MCUs during cold start in smart meter designs.

IC Role / Device Role / Timing Role: Regulating reset line voltage to 11 V prior to RC delay network, ensuring monotonic release timing.

Use Value: Guarantees >200 ms reset assertion at power-up and eliminates false resets caused by V_DD ripple.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX55-C11	Same 11 V nominal rating but higher r_dif (40 Ω typ.), wider tolerance (±5% vs ±5% identical), plastic DO-35 package	Limited to lower-precision references; unsuitable for high-stability sensor biasing due to higher tempco and leakage	Select when cost sensitivity outweighs long-term drift requirements and board space permits larger footprint
1N4740A	10% tolerance (10.5–11.5 V), higher P_tot (1 W), DO-41 package, r_dif = 17 Ω typ.	Better power handling but inferior thermal stability; not rated for >150 °C ambient operation	Choose only for high-current clamp roles where 175 °C junction rating is unnecessary and 1 W dissipation is required

Compared with BZX55-C11 and 1N4740A, NZX11A,133 delivers superior thermal stability (−2 mV/K vs −3.5 mV/K), lower leakage (<0.1 µA vs 0.5 µA), and hermetic reliability - making it optimal for mission-critical industrial references where parameter drift must be minimized over 10+ years.

Availability

NZX11A,133 is available at Aetrix Electronics and suitable for industrial sensor reference, overvoltage clamp, low-power voltage monitor, and microcontroller reset circuit applications requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for NZX11A,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 specializing in high-performance, high-reliability discrete, logic, and MOSFET devices, headquartered in Nijmegen, Netherlands.

The NZX series targets general-purpose Zener regulation in harsh-environment industrial and automotive-adjacent applications, emphasizing hermetic sealing, wide temperature capability, and tight parametric control for long-lifetime deployments.

FAQ

What is the maximum continuous forward current rating for NZX11A,133?

The absolute maximum forward current is 250 mA per Table 5 of the datasheet. This rating applies under ambient conditions up to +175 °C and assumes proper PCB thermal relief. Exceeding this value risks permanent junction degradation even if instantaneous power remains below 500 mW.

Does NZX11A,133 meet automotive qualification standards?

No. The datasheet explicitly states that NZX11A,133 is a non-automotive qualified product. It has not undergone AEC-Q101 stress testing or been validated for automotive temperature cycling, humidity resistance, or vibration requirements. Use in automotive applications is at the customer's sole risk.

How is the cathode identified on the NZX11A,133 package?

The cathode is marked by a distinct color band on the glass body of the SOD27 package, aligned with Pin 1 as defined in Table 2. This band must face the regulated output node in shunt configuration; incorrect orientation results in forward conduction instead of Zener regulation.

What is the thermal resistance from junction to tie-point for NZX11A,133?

R_th(j-t) is 300 K/W, measured with the device mounted on an FR4 PCB without metallization pad and with maximum lead length of 8 mm. This value enables accurate junction temperature estimation when tie-point temperature is monitored directly on the PCB near the diode leads.

NZX11A,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):: 10.6 V

Tolerance:: ±2%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 25 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

NZX11A,133 FAQ

1.How can I place an order for NZX11A,133 through Aetrix?

Please submit a Request for Quotation (RFQ) for NZX11A,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 NZX11A,133 reliable?

The price and inventory of NZX11A,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX11A,133 is usually 5 days.

3.What payment methods are accepted for NZX11A,133?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX11A,133 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NZX11A,133?

NZX11A,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NZX11A,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 NZX11A,133?

For technical support, including NZX11A,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX11A,133 requirements.

6.How does Aetrix verify that NZX11A,133 is sourced from the original manufacturer or authorized distributors?

All NZX11A,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 NZX11A,133 meets industry standards.

7.What is the process for return or replacement of NZX11A,133?

All NZX11A,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX11A,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 NZX11A,133 part is unused and in its original packaging.

Return procedure for NZX11A,133:

1.Submit a request within 90 days.

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

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