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Nexperia USA Inc. NZX8V2A,133
- Part No.:
- NZX8V2A,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
NZX8V2A,133.pdf
- Description:
- DIODE ZENER 7.9V 500MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:2,728
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Product details
Overview
NZX8V2A,133 from Nexperia is a single Zener diode in a hermetically sealed SOD27 (SC-40) glass package, designed for precision voltage regulation and reference functions at 8.2 V nominal Zener voltage with ±5% tolerance. It delivers 20 Ω typical differential resistance at IZ = 5 mA, supports up to 500 mW total power dissipation, and exhibits low reverse leakage (≤0.7 µA at VR = 5 V), making it suitable for low-power analog reference and overvoltage clamp circuits in industrial sensor interfaces.
For engineers reviewing the NZX8V2A,133 datasheet, NZX8V2A,133 pinout, NZX8V2A,133 application, or NZX8V2A,133 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (Rth(j-a) = 380 K/W), axial-leaded SOD27 package compatibility with through-hole PCB layouts, and compliance with IEC 60134 absolute maximum ratings for ambient temperature (−55 °C to +175 °C).
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 7.7–8.3 V at IZ = 5 mA, exhibiting a temperature coefficient near zero at this current level per Fig 4. Its low 20 Ω differential resistance ensures stable regulation under small-signal load variations, while the 380 K/W junction-to-ambient thermal resistance reflects performance on FR4 PCBs without copper pads.
The device uses axial leads with cathode indicated by a band, conforms to IEC 60134 limiting values (Ptot ≤ 500 mW, Tj ≤ 175 °C), and is rated for storage and operation across −65 °C to +175 °C - enabling use in extended-temperature industrial environments where hermetic sealing prevents moisture-induced parameter drift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.7–8.3 V at IZ = 5 mA; defines precise clamping threshold for voltage reference and protection circuits |
| Differential Resistance (rdif) | 20 Ω typical at IZ = 5 mA; determines regulation stiffness against load current changes |
| Reverse Current (IR) | ≤0.7 µA at VR = 5 V; minimizes standby power loss in high-impedance bias networks |
| Total Power Dissipation (Ptot) | 500 mW at Ttp ≤ 25 °C; sets maximum continuous DC or pulsed power handling capability |
| Junction Temperature (Tj) | −65 °C to +175 °C; enables operation in harsh thermal environments without derating below 25 °C ambient |
| Thermal Resistance (Rth(j-a)) | 380 K/W in free air on FR4 PCB; informs thermal design margin for sustained power delivery |
Pinout & Package
Package: SOD27 (SC-40), hermetically sealed axial-leaded glass package with 2.54 mm lead spacing and 4.25 mm max body length; suitable for manual or wave-solder assembly on through-hole PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; polarity marking band identifies this terminal |
| 2 | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents humidity-induced parameter shift and long-term degradation in humid or outdoor environments |
| Low differential resistance | 20 Ω typical ensures <±10 mV output variation per 0.2 mA load change at nominal Zener current |
| Low leakage current | ≤0.7 µA at 5 V reverse bias reduces quiescent current in battery-powered voltage monitor circuits |
| Wide operating temperature range | −65 °C to +175 °C allows deployment in automotive engine compartments and industrial motor control enclosures |
Applications
| Industrial Sensor Signal Conditioning | Low-Power Microcontroller Voltage Reference |
|---|---|
|
Use Scenario: Stabilizing excitation voltage for resistive bridge sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Zener diode provides fixed 8.2 V reference for op-amp excitation circuitry, replacing higher-cost precision references. Use Value: Enables ±0.5% full-scale accuracy over −40 °C to +85 °C ambient using only passive components and standard op-amps. |
Use Scenario: Generating stable 8.2 V supply for ADC reference input in battery-operated IoT edge nodes. IC Role / Device Role / Timing Role: Functions as shunt regulator to derive clean reference from unregulated 9–12 V supply rails. Use Value: Delivers <1 µA total quiescent current draw while maintaining <10 mV regulation error across 1–10 µA load variation. |
| Overvoltage Clamp for RS-485 Transceivers | Power Supply Rail Protection in Motor Drives |
|
Use Scenario: Protecting RS-485 receiver inputs against transient surges exceeding ±15 V common-mode range. IC Role / Device Role / Timing Role: Acts as bidirectional clamp when paired with series resistor, limiting voltage to ±8.2 V relative to ground. Use Value: Absorbs 500 mW peak pulse energy without parametric shift, meeting IEC 61000-4-5 Level 3 surge immunity requirements. |
Use Scenario: Clamping gate-drive supply rail spikes caused by MOSFET switching noise in 24 V BLDC motor controllers. IC Role / Device Role / Timing Role: Shunt regulator placed between 12 V gate driver supply and ground to suppress >8.3 V transients. Use Value: Limits overshoot to <8.5 V for <100 ns duration, preventing unintended high-side driver latch-up during fast dv/dt events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55-C8V2 (Vishay) | Same 8.2 V nominal VZ, but 500 mW rating in DO-35 package; rdif = 35 Ω (vs. 20 Ω); Rth(j-a) = 500 K/W | Higher thermal resistance limits sustained power in compact layouts; less stable regulation under dynamic loads | Select when DO-35 footprint is required and thermal margin exceeds 20 K/W above NZX8V2A,133 |
| 1N4736A (ON Semiconductor) | 8.2 V VZ, 1 W rating in DO-41; rdif = 7 Ω; Rth(j-a) = 150 K/W; larger axial package | Higher power capability and lower impedance suit higher-current references but require more board space | Choose for >500 mW average dissipation or when tighter regulation (<5 mV/1 mA) is mandatory |
Compared with BZX55-C8V2 and 1N4736A, NZX8V2A,133 offers optimal balance of low differential resistance, hermetic reliability, and compact SOD27 footprint - ideal for space-constrained industrial designs requiring stable 8.2 V reference without thermal derating penalties.
Availability
NZX8V2A,133 is available at Aetrix Electronics and suitable for industrial sensor conditioning, low-power microcontroller reference, RS-485 overvoltage clamp, and motor drive rail protection requiring stable component supply and long-term parametric consistency.
Supply support for NZX8V2A,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 logic, discrete, and MOSFET devices with focus on efficiency, reliability, and miniaturization for industrial and consumer applications.
The NZX series targets general-purpose Zener regulation with hermetic stability and tight voltage tolerances, specifically engineered for cost-sensitive yet thermally demanding analog reference and protection roles in non-automotive industrial systems.
FAQ
What is the maximum continuous forward current for NZX8V2A,133?
The absolute maximum forward current is 250 mA per Table 5. However, forward conduction is not its intended operating mode; the device is optimized for reverse-bias Zener regulation. Sustained forward current above 200 mA risks thermal runaway due to low forward voltage (≤1.5 V at 200 mA) and limited heat dissipation in the SOD27 package.
Can NZX8V2A,133 be used in surface-mount designs?
No - NZX8V2A,133 uses axial leads in the SOD27 (SC-40) through-hole package and is not compatible with SMT reflow or pick-and-place processes. For surface-mount equivalents, consider Nexperia's BZX384-B8V2 (SOD-323) or PZM8.2NB (SOT-23), which offer similar electrical specs but different thermal and mechanical characteristics.
How does the temperature coefficient behave at 8.2 V nominal Zener voltage?
Per Figure 4, the NZX8V2A exhibits near-zero temperature coefficient (≈0 mV/K) at IZ = 5 mA, meaning its Zener voltage remains stable across −55 °C to +175 °C ambient when biased at this current. Deviation increases significantly below 2 mA or above 10 mA, so stable biasing is critical for precision applications.
Is NZX8V2A,133 automotive qualified?
No - this part is explicitly designated as non-automotive qualified per Nexperia's legal disclaimers. It lacks AEC-Q200 stress testing, automotive-grade traceability, and extended reliability validation. For automotive Zener applications, select Nexperia's Automotive Qualified (AQ) series such as PZM8.2AQB or BZX84-A8V2.
NZX8V2A,133 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- NZX
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 7.9 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 700 nA @ 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
NZX8V2A,133 FAQ
1.How can I place an order for NZX8V2A,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZX8V2A,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 NZX8V2A,133 reliable?
The price and inventory of NZX8V2A,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX8V2A,133 is usually 5 days.
3.What payment methods are accepted for NZX8V2A,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX8V2A,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZX8V2A,133?
NZX8V2A,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZX8V2A,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 NZX8V2A,133?
For technical support, including NZX8V2A,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX8V2A,133 requirements.
6.How does Aetrix verify that NZX8V2A,133 is sourced from the original manufacturer or authorized distributors?
All NZX8V2A,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 NZX8V2A,133 meets industry standards.
7.What is the process for return or replacement of NZX8V2A,133?
All NZX8V2A,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX8V2A,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 NZX8V2A,133 part is unused and in its original packaging.
Return procedure for NZX8V2A,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZX8V2A,133 Tags
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