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Nexperia USA Inc. NZX3V0A,133
- Part No.:
- NZX3V0A,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
NZX3V0A,133.pdf
- Description:
- DIODE ZENER 2.9V 500MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:9,857
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Product details
Overview
NZX3V0A,133 from Nexperia is a single Zener diode in a hermetically sealed SOD27 (SC-40) glass package, designed for precision voltage regulation at 3.0 V nominal Zener voltage with ±0.1 V tolerance (2.9–3.1 V), 100 Ω typical differential resistance at IZ = 5 mA, and ≤10 µA reverse leakage current. It operates across −55 °C to +175 °C ambient and delivers stable reference voltage in low-power analog circuits and overvoltage protection paths.
For engineers reviewing the NZX3V0A,133 datasheet, NZX3V0A,133 pinout, NZX3V0A,133 application, or NZX3V0A,133 equivalent, this component serves as a compact, temperature-stable 3.0 V shunt regulator for power rail clamping, voltage reference generation, and signal-level limiting in industrial sensor interfaces and microcontroller reset circuits.
Technical Context
This Zener diode functions as a two-terminal shunt voltage regulator, maintaining a stable 3.0 V output by conducting reverse current above its breakdown threshold. Its low 100 Ω differential resistance ensures minimal voltage drift under load variation, while its 175 °C maximum junction temperature supports operation in thermally demanding environments.
The device uses axial-leaded SOD27 packaging with cathode indicated by a band, enabling direct PCB mounting without thermal pads. With 500 mW total power dissipation limit and 380 K/W junction-to-ambient thermal resistance in free air, it is optimized for low-current (<250 mA forward, <5 mA Zener test current) regulation tasks where hermetic sealing and long-term stability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.9–3.1 V at IZ = 5 mA - defines precise 3.0 V regulation window for reference and clamping |
| Differential Resistance (rdif) | 100 Ω max at IZ = 5 mA - ensures tight voltage regulation under small load changes |
| Reverse Leakage Current (IR) | ≤10 µA at VR = 1 V - minimizes standby power loss in battery-powered systems |
| Total Power Dissipation (Ptot) | 500 mW at Ttp ≤ 25 °C - sets maximum continuous Zener power before thermal derating |
| Junction Temperature (Tj) | −55 °C to +175 °C - enables use in extended-temperature industrial and automotive-adjacent applications |
| Forward Voltage (VF) | ≤1.5 V at IF = 200 mA - supports bidirectional transient suppression when used with series resistor |
| Thermal Resistance (Rth(j-a)) | 380 K/W in free air - determines self-heating rise per watt, critical for derating calculations |
Pinout & Package
Package: SOD27 (SC-40), hermetically sealed axial-leaded glass package with cathode marked by a band. Dimensions: 4.25 mm max length × 1.85 mm max diameter; lead spacing 25.4 mm min.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated voltage node; reverse-biased during Zener operation |
| 2 (unmarked end) | Anode | Connected to ground or lower-potential reference; completes shunt path |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift in humid or corrosive environments |
| Low differential resistance | 100 Ω max ensures <±10 mV output shift per 1 mA Zener current change |
| Low leakage current | ≤10 µA at 1 V reverse bias reduces quiescent current in always-on reference circuits |
| Wide operating temperature range | −55 °C to +175 °C ambient allows deployment in engine control units and industrial PLCs |
| Stable Zener voltage tolerance | ±0.1 V (2.9–3.1 V) enables accurate 3.0 V reference without external trimming |
Applications
| Microcontroller Reset Circuit | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Providing a clean, temperature-stable 3.0 V reset threshold for ARM Cortex-M0+ MCUs in factory automation controllers. IC Role / Device Role / Timing Role: Shunt Zener reference connected to RC network feeding MCU reset pin. Use Value: Ensures reliable reset assertion below 3.0 V with <±10 mV drift over −40 °C to +85 °C operating range. |
Use Scenario: Clamping analog output of a 4–20 mA current-loop pressure transducer to protect ADC input. IC Role / Device Role / Timing Role: Bidirectional voltage limiter placed between transducer output and op-amp buffer. Use Value: Limits signal swing to ±3.0 V using forward conduction (≤1.5 V) and reverse Zener action (3.0 V), preventing ADC saturation. |
| Low-Power Battery Monitor | Programmable Logic Supply Clamp |
|
Use Scenario: Monitoring lithium-thionyl chloride cell voltage (3.6 V nominal) in wireless IoT endpoint nodes. IC Role / Device Role / Timing Role: Zener-connected across battery terminals with high-value series resistor to sense undervoltage. Use Value: Draws only ≤10 µA at 2.9 V, extending 10-year battery life while triggering low-battery alert at 3.0 V threshold. |
Use Scenario: Protecting FPGA configuration I/O banks powered from 3.3 V LDOs against ESD-induced overshoot. IC Role / Device Role / Timing Role: Shunt clamp placed between I/O line and ground, activated during >3.0 V transients. Use Value: Responds within nanoseconds to clamp spikes to 3.0 V, leveraging low rdif to absorb energy without latch-up. |
Availability
NZX3V0A,133 is available at Aetrix Electronics and suitable for industrial sensor interfaces, microcontroller reset circuits, and low-power battery monitoring requiring stable component supply with full traceability and long-lifecycle support.
Supply support for NZX3V0A,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, reliability, and miniaturization for industrial, automotive, and consumer applications.
The NZX series is part of Nexperia's general-purpose Zener diode portfolio, engineered for stable voltage regulation and reference applications where hermetic sealing, tight tolerance, and wide temperature operation are essential.
FAQ
What is the maximum Zener test current for NZX3V0A,133?
The datasheet specifies Zener characteristics at IZ = 5 mA, with absolute maximum forward current rated at 250 mA. For stable regulation, operation should remain within the 1–10 mA range to avoid thermal drift and ensure ≤100 Ω differential resistance performance.
Can NZX3V0A,133 be used in place of a 3.3 V Zener diode?
No - NZX3V0A,133 has a nominal Zener voltage of 3.0 V (2.9–3.1 V), not 3.3 V. Substituting it for a 3.3 V part would result in ~300 mV lower clamping voltage, potentially causing premature reset assertion or incorrect signal limiting in 3.3 V systems.
Does NZX3V0A,133 require a heatsink for 500 mW operation?
No - the 500 mW rating applies only at Ttp ≤ 25 °C with no heatsink. In practice, its 380 K/W junction-to-ambient thermal resistance means even at 100 mW dissipation, junction temperature rises ~38 °C above ambient; heatsinking is unnecessary for typical low-power regulation use cases.
How is polarity identified on the NZX3V0A,133 package?
The cathode is marked by a visible band on the glass body - terminal 1 (banded end) is cathode, terminal 2 (unmarked end) is anode. This marking aligns with standard diode polarity conventions and must be observed to ensure correct reverse-bias connection for Zener operation.
NZX3V0A,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):
- 2.9 V
- Tolerance:
- ±3%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 10 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
NZX3V0A,133 FAQ
1.How can I place an order for NZX3V0A,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZX3V0A,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 NZX3V0A,133 reliable?
The price and inventory of NZX3V0A,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX3V0A,133 is usually 5 days.
3.What payment methods are accepted for NZX3V0A,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX3V0A,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZX3V0A,133?
NZX3V0A,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZX3V0A,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 NZX3V0A,133?
For technical support, including NZX3V0A,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX3V0A,133 requirements.
6.How does Aetrix verify that NZX3V0A,133 is sourced from the original manufacturer or authorized distributors?
All NZX3V0A,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 NZX3V0A,133 meets industry standards.
7.What is the process for return or replacement of NZX3V0A,133?
All NZX3V0A,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX3V0A,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 NZX3V0A,133 part is unused and in its original packaging.
Return procedure for NZX3V0A,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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