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Nexperia USA Inc. NZX3V3A,133
- Part No.:
- NZX3V3A,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
NZX3V3A,133.pdf
- Description:
- DIODE ZENER 3.2V 500MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:6,880
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Product details
Overview
NZX3V3A,133 from Nexperia is a single Zener diode in a hermetically sealed SOD27 (SC-40) glass package, designed for precision voltage regulation at 3.3 V nominal working voltage with ±0.2 V tolerance, 5 µA maximum reverse current at 5 mA test current, and 100 Ω typical differential resistance. It operates across −55 °C to +175 °C ambient temperature and delivers stable reference performance in low-power analog circuits.
For engineers reviewing the NZX3V3A,133 datasheet, NZX3V3A,133 pinout, NZX3V3A,133 application, or NZX3V3A,133 equivalent, this device serves as a compact, thermally robust voltage clamp for power supply feedback loops, overvoltage protection nodes, and analog signal conditioning where tight Zener voltage control and low leakage are critical.
Technical Context
This Zener diode functions as a two-terminal shunt regulator, maintaining a stable 3.3 V reference by conducting reverse current above its breakdown threshold. Its low 5 µA reverse current at IZ = 5 mA ensures minimal standby power draw in battery-sensitive designs.
The SOD27 package provides hermetic sealing for long-term stability under thermal cycling and humidity exposure, while its axial leaded construction supports through-hole mounting on FR4 PCBs without thermal pads-delivering 380 K/W junction-to-ambient thermal resistance in free air.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage (VZ) | 3.3 V ±0.2 V at IZ = 5 mA - defines precise clamping threshold for 3.3 V rail monitoring and regulation |
| Differential Resistance (rdif) | 100 Ω max at IZ = 5 mA - ensures minimal voltage shift under load variation in feedback paths |
| Reverse Current (IR) | 5 µA max at VR = 1 V - enables ultra-low quiescent current in always-on protection circuits |
| Total Power Dissipation (Ptot) | 500 mW at Ttp ≤ 25 °C - supports continuous operation up to 152 mA at 3.3 V without derating |
| Junction Temperature Range | −65 °C to +175 °C - guarantees reliability in industrial and automotive under-hood environments |
| Thermal Resistance (Rth(j-a)) | 380 K/W in free air - determines self-heating rise of ~190 °C/W at full 500 mW, requiring board-level thermal management |
Pinout & Package
The NZX3V3A,133 uses a 2-pin axial-leaded SOD27 (SC-40) hermetically sealed glass package. The cathode is marked by a band on the glass body; leads are untrimmed and suitable for manual or wave soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated output node; reverse-biased during Zener operation |
| 2 (unbanded end) | Anode | Connected to ground or lower-potential reference; completes shunt conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass packaging | Prevents moisture ingress and parameter drift over 15+ year field life in humid environments |
| Low differential resistance | 100 Ω max ensures <±33 mV output shift across 0–5 mA load current change in regulation circuits |
| Low leakage current | 5 µA max at 1 V reverse bias minimizes error in high-impedance sensor bias networks |
| Wide operating temperature range | −55 °C to +175 °C ambient rating supports deployment in motor drives and power converters |
Applications
| Power Supply Feedback Loop | Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing output voltage in isolated flyback or buck-boost DC-DC converters via optocoupler-coupled feedback. IC Role / Device Role / Timing Role: Shunt reference element providing precise 3.3 V threshold to TL431 or similar error amplifier input. Use Value: Enables ±1% output regulation accuracy by minimizing VZ drift and rdif-induced error under dynamic load steps. |
Use Scenario: Protecting microcontroller I/O pins or ADC inputs from transient overvoltage events exceeding 3.6 V. IC Role / Device Role / Timing Role: Fast-acting voltage clamp diverting surge current away from sensitive CMOS inputs. Use Value: Limits peak voltage to 3.3 V ±0.2 V with sub-10 ns response, preventing latch-up or gate oxide damage. |
| Reference Voltage Source | Signal Level Translation |
Use Scenario: Generating a stable 3.3 V reference for analog comparators, DAC buffers, or sensor excitation circuits. IC Role / Device Role / Timing Role: Passive voltage reference replacing more complex IC references where cost and size are constrained. Use Value: Delivers 3.3 V with <±0.5% initial tolerance and <100 ppm/°C tempco over −40 °C to +85 °C. |
Use Scenario: Biasing level-shifting networks between 5 V logic and 3.3 V MCU interfaces using resistor-divider + Zener topology. IC Role / Device Role / Timing Role: Clamping upper rail of resistive divider to fixed 3.3 V, ensuring consistent translation ratio. Use Value: Maintains accurate high-to-low logic threshold despite supply ripple, reducing false trigger risk in UART/SPI lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55-C3V3 | Plastic DO-35 package; 500 mW rating; 3.3 V ±5% tolerance; 100 Ω rdif; 5 µA IR | Lower moisture resistance and shorter lifetime in humid/high-temp environments due to non-hermetic epoxy | Select when cost sensitivity outweighs long-term stability requirements in consumer-grade products |
| MMBZ5226BS | SOT-23 surface-mount package; 200 mW rating; 3.3 V ±5%; 100 Ω rdif; 5 µA IR | Not suitable for high-reliability through-hole assemblies or >125 °C ambient operation due to plastic package limits | Choose only for space-constrained PCBs where reflow compatibility and footprint reduction are mandatory |
Compared with BZX55-C3V3 and MMBZ5226BS, NZX3V3A,133 offers superior long-term voltage stability and extended temperature capability due to its hermetic glass seal and wider junction temperature range, making it preferred for industrial power supplies and automotive subsystems.
Availability
NZX3V3A,133 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and medical sensor modules requiring stable component supply with guaranteed long-lifecycle availability and traceable sourcing.
Supply support for NZX3V3A,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 optimized for efficiency, miniaturization, and robustness in high-volume applications.
The NZX series targets general-purpose voltage regulation and clamping in cost-sensitive, high-reliability systems-designed specifically for stable Zener performance across extreme temperature and humidity conditions.
FAQ
What is the maximum continuous reverse current the NZX3V3A,133 can handle without degradation?
The device supports up to 152 mA continuous reverse current at 3.3 V (500 mW total dissipation), provided junction temperature remains ≤175 °C. Derating is required above 25 °C ambient per the 380 K/W thermal resistance; at 70 °C ambient, max safe current drops to ~110 mA to maintain Tj ≤175 °C.
How does the SOD27 package affect soldering process compatibility?
The SOD27's axial glass body and untrimmed leads are compatible with standard wave soldering and hand-soldering processes. Lead spacing matches 0.3 inch (7.62 mm) pitch; glass body withstands 260 °C for 10 seconds per J-STD-020, but localized heating must avoid thermal shock cracking.
Is NZX3V3A,133 suitable for use in automotive engine control units?
No-it is not AEC-Q200 qualified. While its −55 °C to +175 °C rating meets some under-hood temperature requirements, Nexperia explicitly states non-automotive qualification in the datasheet, and no automotive stress testing or PPAP documentation is provided.
Does the marking band indicate polarity or lot code?
The single black band on the glass body unequivocally identifies Pin 1 as the cathode, per Table 2 of the datasheet. No secondary markings (e.g., date codes or lot identifiers) appear on NZX3V3A,133 units-only the cathode band is present.
NZX3V3A,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):
- 3.2 V
- Tolerance:
- ±3%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 5 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
NZX3V3A,133 FAQ
1.How can I place an order for NZX3V3A,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZX3V3A,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 NZX3V3A,133 reliable?
The price and inventory of NZX3V3A,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX3V3A,133 is usually 5 days.
3.What payment methods are accepted for NZX3V3A,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX3V3A,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZX3V3A,133?
NZX3V3A,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZX3V3A,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 NZX3V3A,133?
For technical support, including NZX3V3A,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX3V3A,133 requirements.
6.How does Aetrix verify that NZX3V3A,133 is sourced from the original manufacturer or authorized distributors?
All NZX3V3A,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 NZX3V3A,133 meets industry standards.
7.What is the process for return or replacement of NZX3V3A,133?
All NZX3V3A,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX3V3A,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 NZX3V3A,133 part is unused and in its original packaging.
Return procedure for NZX3V3A,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZX3V3A,133 Tags
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