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

Nexperia USA Inc. NZX2V7B,133

Name: NZX2V7B,133
Brand: Nexperia USA Inc.
SKU: NZX2V7B,133
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NZX2V7B,133

Manufacturer:: Nexperia USA Inc.

Category:: Single Zener Diodes

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

Datasheet:: NZX2V7B,133.pdf

Description:: DIODE ZENER 2.7V 500MW ALF2

Quantity:: RFQ Add To RFQ list

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Inventory:9,920

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Product details

Overview

NZX2V7B,133 from Nexperia is a single Zener diode in a hermetically sealed SOD27 (SC-40) glass package, designed for precision voltage regulation at 2.7 V nominal working voltage with ±0.1 V tolerance, 100 Ω differential resistance at I_Z = 5 mA, and ≤20 µA reverse current. It delivers stable reference performance in low-power analog circuits, power supply feedback loops, and overvoltage protection stages.

For engineers reviewing the NZX2V7B,133 datasheet, NZX2V7B,133 pinout, NZX2V7B,133 application, or NZX2V7B,133 equivalent, this device is selected for its low leakage, tight Zener voltage tolerance, axial-leaded hermetic packaging, and compatibility with manual or wave-soldered PCB assembly in industrial and consumer power management designs.

Technical Context

This Zener diode operates in reverse breakdown mode to maintain a stable 2.7 V reference across load variations, with thermal coefficient behavior optimized for operation between 25 °C and 150 °C. Its junction-to-ambient thermal resistance of 380 K/W reflects performance on standard FR4 PCBs without copper pour.

The device uses axial-leaded SOD27 construction with cathode indicated by a band, enabling unambiguous polarity identification during placement. It complies with IEC 60134 absolute maximum ratings, supporting continuous forward current up to 250 mA and total power dissipation ≤500 mW at T_tp ≤25 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage V_Z	2.6 V to 2.8 V at I_Z = 5 mA - defines precise regulation window for low-voltage reference circuits
Differential Resistance r_dif	≤100 Ω at I_Z = 5 mA - ensures minimal output voltage shift under dynamic load changes
Reverse Current I_R	≤20 µA at V_R = 1 V - enables ultra-low quiescent power consumption in battery-sensitive designs
Total Power Dissipation P_tot	500 mW at T_tp ≤25 °C - sets thermal design boundary for ambient-limited PCB layouts
Junction Temperature T_j	−65 °C to +175 °C - supports operation in extended industrial temperature environments
Forward Voltage V_F	≤1.5 V at I_F = 200 mA - confirms robust conduction capability when used bidirectionally or as clamp

Pinout & Package

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

Pin/Terminal	Circuit Role	Design Meaning
1	Cathode	Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs
2	Anode	Connected to ground or lower-potential rail; establishes reference polarity and current return path

Key Features

Feature	Design Value
Hermetic Glass Encapsulation	Prevents moisture ingress and long-term parameter drift in humid or harsh environments
Low Differential Resistance	≤100 Ω ensures <10 mV output variation per 1 mA load change - critical for stable feedback references
Tight Zener Voltage Tolerance	±0.1 V at 2.7 V enables accurate 3.3 V LDO monitoring or 2.5 V ADC reference scaling
Low Leakage Current	≤20 µA at 1 V reverse bias minimizes standby power loss in always-on sensor nodes

Applications

Power Supply Feedback

Overvoltage Clamp

Use Scenario: Regulating output voltage of linear regulators or switching converters via optocoupler-coupled feedback loop.

IC Role / Device Role / Timing Role: Provides precise 2.7 V reference to error amplifier input, setting converter output accuracy.

Use Value: Enables ±1% output regulation stability across line/load/temperature with no external trimming required.

Use Scenario: Protecting microcontroller I/O pins from transient surges exceeding 3.3 V logic threshold.

IC Role / Device Role / Timing Role: Acts as shunt clamp, conducting excess current above 2.7 V to limit voltage excursion.

Use Value: Limits peak voltage to safe levels within 100 ns response time while drawing <20 µA at normal operating voltage.

Reference Voltage Source

Signal Level Shifting

Use Scenario: Generating stable bias point for op-amp comparators or analog front-end circuitry.

IC Role / Device Role / Timing Role: Supplies fixed 2.7 V reference to non-inverting input of comparator for threshold detection.

Use Value: Delivers <0.5 mV/°C temperature coefficient drift over −40 °C to +85 °C, ensuring consistent trip points.

Use Scenario: Translating 5 V logic signals to 3.3 V compatible levels using passive resistor-Zener network.

IC Role / Device Role / Timing Role: Sets clamped high-level voltage at 2.7 V to prevent overdriving downstream CMOS inputs.

Use Value: Maintains signal integrity with <1 ns propagation delay and no active components or supply dependency.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX55C2V7	Plastic DO-35 package; higher r_dif (≤120 Ω); wider V_Z tolerance (±5%)	Limited to cost-sensitive consumer applications where hermeticity and tight tolerance are not required	Select when board space allows larger DO-35 footprint and long-term reliability in humid environments is secondary
MMSZ4678	SOD-123 surface-mount package; same V_Z range but higher I_R (≤50 µA at 1 V)	Suitable for automated SMT assembly but less stable at elevated temperatures due to epoxy encapsulation	Choose for high-volume PCBs requiring reflow compatibility, accepting trade-off in leakage and thermal coefficient

Compared with BZX55C2V7 and MMSZ4678, NZX2V7B,133 offers superior long-term stability via hermetic sealing, tighter voltage control, and lower leakage-making it preferred for industrial-grade reference and protection functions where environmental resilience matters.

Availability

NZX2V7B,133 is available at Aetrix Electronics and suitable for power supply feedback, overvoltage protection, and precision reference voltage generation requiring stable component supply across automotive infotainment subsystems, industrial PLC I/O modules, and medical sensor signal conditioning circuits.

Supply support for NZX2V7B,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.

The NZX series targets general-purpose Zener regulation with emphasis on hermetic reliability, tight voltage tolerances, and low-leakage performance for industrial and consumer power management applications.

FAQ

What is the maximum continuous reverse power dissipation for NZX2V7B,133?

The device supports up to 500 mW total power dissipation at terminal temperature ≤25 °C, derating linearly above that point based on its 380 K/W junction-to-ambient thermal resistance. This rating assumes mounting on FR4 PCB with 8 mm lead length and no copper pour.

How is polarity identified on the NZX2V7B,133 package?

A distinct color band on the glass body marks the cathode (Pin 1); the unmarked end is the anode (Pin 2). This marking aligns with standard diode polarity conventions and is visible before and after soldering.

Does NZX2V7B,133 meet automotive qualification standards?

No - this part is not AEC-Q200 qualified or tested for automotive use. It is rated for industrial and commercial applications only, with operating ambient temperature from −55 °C to +175 °C but without automotive-grade stress screening or failure rate validation.

Can NZX2V7B,133 be used in forward conduction mode?

Yes - it conducts forward current up to 250 mA with ≤1.5 V drop at 200 mA, making it usable as a low-drop rectifier or clamp in bidirectional protection schemes, though its primary design intent is reverse-bias Zener regulation.

NZX2V7B,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):: 2.7 V

Tolerance:: ±4%

Power - Max:: 500 mW

Impedance (Max) (Zzt):: 100 Ohms

Current - Reverse Leakage @ Vr:: 20 µA @ 1 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

NZX2V7B,133 FAQ

1.How can I place an order for NZX2V7B,133 through Aetrix?

Please submit a Request for Quotation (RFQ) for NZX2V7B,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 NZX2V7B,133 reliable?

The price and inventory of NZX2V7B,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX2V7B,133 is usually 5 days.

3.What payment methods are accepted for NZX2V7B,133?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX2V7B,133 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NZX2V7B,133?

NZX2V7B,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NZX2V7B,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 NZX2V7B,133?

For technical support, including NZX2V7B,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX2V7B,133 requirements.

6.How does Aetrix verify that NZX2V7B,133 is sourced from the original manufacturer or authorized distributors?

All NZX2V7B,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 NZX2V7B,133 meets industry standards.

7.What is the process for return or replacement of NZX2V7B,133?

All NZX2V7B,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX2V7B,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 NZX2V7B,133 part is unused and in its original packaging.

Return procedure for NZX2V7B,133:

1.Submit a request within 90 days.

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

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