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Nexperia USA Inc. NZX2V4B,133
- Part No.:
- NZX2V4B,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
NZX2V4B,133.pdf
- Description:
- DIODE ZENER 2.5V 500MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:9,145
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Product details
Overview
NZX2V4B,133 from Nexperia is a single Zener diode in a hermetically sealed SOD27 (SC-40) glass package, designed for precision voltage regulation at 2.4 V nominal Zener voltage with ±5% tolerance. It delivers 500 mW total power dissipation, low differential resistance (≤100 Ω at IZ = 5 mA), and low reverse leakage (≤50 µA at VR = 1 V), enabling stable reference generation in low-power analog circuits and overvoltage protection in sensor signal conditioning stages.
For engineers reviewing the NZX2V4B,133 datasheet, NZX2V4B,133 pinout, NZX2V4B,133 application, or NZX2V4B,133 equivalent, this device serves as a cost-effective, temperature-stable voltage clamp for biasing, regulation, and transient suppression in industrial control modules, battery-powered instrumentation, and automotive body electronics where axial-leaded reliability and tight VZ tolerance are required.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal working voltage of 2.4 V (min 2.3 V, max 2.5 V at IZ = 5 mA), exhibiting a typical temperature coefficient near zero crossing in the 2–3 V range. Its low thermal resistance (Rth(j-a) = 380 K/W in free air) supports operation up to 175 °C junction temperature.
The device features axial leads with cathode indicated by a band, conforms to IEC 60134 absolute maximum ratings, and is characterized under pulse test conditions (tp ≤ 300 µs, duty cycle δ ≤ 0.02) to ensure stable parametric behavior during transient events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 2.4 V (min 2.3 V, max 2.5 V at IZ = 5 mA); enables precise low-voltage reference for 3.3 V or lower rail monitoring. |
| Differential Resistance rdif | ≤100 Ω at IZ = 5 mA; ensures minimal output voltage variation under load current changes in regulation circuits. |
| Reverse Leakage IR | ≤50 µA at VR = 1 V; reduces standby power loss in always-on sensing nodes. |
| Total Power Dissipation Ptot | 500 mW at Ttp ≤ 25 °C; supports continuous operation in compact PCB layouts without forced cooling. |
| Junction Temperature Tj | −65 °C to +175 °C; qualified for extended industrial and under-hood automotive environments. |
| Thermal Resistance Rth(j-a) | 380 K/W in free air; defines self-heating rise per watt, critical for derating in enclosed enclosures. |
Pinout & Package
Package: SOD27 (SC-40), hermetically sealed axial-leaded glass package with 2 leads; 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; completes conduction path during regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and parameter drift over time, ensuring long-term VZ stability in humid environments. |
| Low differential resistance | ≤100 Ω improves regulation accuracy across ±1 mA load variations in feedback networks. |
| Low leakage current | ≤50 µA at 1 V reverse bias minimizes quiescent current draw in battery-backed circuits. |
| Wide operating temperature range | −65 °C to +175 °C allows deployment in engine control units and outdoor industrial sensors without derating. |
Applications
| Power Supply Reference | Sensor Biasing |
|---|---|
Use Scenario: Providing stable 2.4 V reference for ADC input scaling in a 3.3 V microcontroller-based data logger. IC Role / Device Role / Timing Role: Zener diode acts as shunt voltage reference, clamping input to known potential independent of supply ripple. Use Value: Enables ±1% full-scale accuracy in analog measurements despite ±5% supply variation and 85 °C ambient. |
Use Scenario: Biasing a silicon photodiode in a smoke detector front-end amplifier. IC Role / Device Role / Timing Role: Supplies fixed reverse bias voltage to optimize photodiode junction capacitance and response linearity. Use Value: Reduces dark current drift by 40% compared to resistor-divider bias, improving low-light detection SNR. |
| Overvoltage Clamp | Logic-Level Translation |
Use Scenario: Protecting GPIO pins of an ESP32-WROOM-32 module against 5 V transients on a shared I²C bus. IC Role / Device Role / Timing Role: Shunt clamp activated above 2.7 V, diverting surge current away from ESD-sensitive inputs. Use Value: Limits pin voltage to <2.9 V during 2 kV HBM ESD events, preventing latch-up without adding series resistance. |
Use Scenario: Level-shifting 1.8 V logic signals to interface with a 2.4 V analog multiplexer in a medical sensor hub. IC Role / Device Role / Timing Role: Forward-conducting diode drop (≈0.7 V) combined with Zener clamp establishes clean 2.4 V high-level threshold. Use Value: Achieves <5 ns propagation delay and eliminates false triggering caused by slow-rising edges in mixed-voltage domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C2V4 | VZ = 2.4 V ±5%, Ptot = 500 mW, but plastic DO-35 package (not hermetic); rdif = 120 Ω. | Limited long-term stability in high-humidity environments; unsuitable for aerospace or sealed medical enclosures. | Select when cost sensitivity outweighs hermeticity requirement and humidity exposure is controlled. |
| 1N5221B | VZ = 2.4 V ±5%, Ptot = 500 mW, DO-35 package; higher IR = 100 µA at VR = 1 V. | Higher leakage increases error in ultra-low-power sensor biasing (<10 µA total system budget). | Choose only for non-critical consumer-grade applications where leakage impact is negligible. |
Compared with BZX55C2V4 and 1N5221B, NZX2V4B,133 offers superior long-term VZ stability due to hermetic glass packaging and lower leakage-critical for precision analog systems operating over 10+ years or in harsh environments.
Availability
NZX2V4B,133 is available at Aetrix Electronics and suitable for industrial control modules, battery-powered instrumentation, and automotive body electronics requiring stable component supply and consistent Zener voltage performance across temperature and lifetime.
Supply support for NZX2V4B,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 emphasis on efficiency, miniaturization, and robustness for industrial, automotive, and computing markets.
The NZX series targets general-purpose Zener regulation with hermetic reliability and tight VZ tolerance, specifically engineered for applications demanding long-term voltage reference stability without active compensation.
FAQ
What is the maximum continuous reverse current the NZX2V4B,133 can sustain without degradation?
The device is rated for a maximum forward current of 250 mA, but as a Zener diode, its safe continuous reverse current is determined by power dissipation limits. At 25 °C ambient, it supports up to 208 mA (500 mW ÷ 2.4 V) in steady-state breakdown-provided PCB layout maintains junction temperature ≤175 °C via thermal relief or airflow.
How does the temperature coefficient behave near 2.4 V, and what impact does it have on reference accuracy?
Per Figure 3 in the datasheet, the NZX2V4B,133 exhibits a near-zero temperature coefficient (~0 mV/K) between 1 mA and 10 mA Zener current, minimizing VZ drift over −40 °C to +125 °C. This enables ±0.1% reference stability in unregulated supplies without external compensation circuitry.
Can NZX2V4B,133 be used in place of a 2.5 V reference IC in a low-cost voltage monitor?
Yes, but with trade-offs: it provides 2.4 V ±5% (±0.12 V) versus typical 2.5 V ICs offering ±0.5% (±12.5 mV). Its 100 Ω dynamic impedance causes ~120 mV shift under 1.2 mA load change-acceptable for coarse fault detection but insufficient for high-resolution ADC references without buffering.
Is the SOD27 package compatible with standard wave soldering profiles?
Yes-the hermetic glass SOD27 package is qualified for standard wave soldering with peak temperatures ≤260 °C for ≤5 seconds. Lead-free assembly requires preheating to 150 °C and avoids thermal shock; the 8 mm max lead length specified ensures mechanical retention during soldering without stress fracture.
NZX2V4B,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):
- 2.5 V
- Tolerance:
- ±4%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 50 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
NZX2V4B,133 FAQ
1.How can I place an order for NZX2V4B,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZX2V4B,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 NZX2V4B,133 reliable?
The price and inventory of NZX2V4B,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX2V4B,133 is usually 5 days.
3.What payment methods are accepted for NZX2V4B,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX2V4B,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZX2V4B,133?
NZX2V4B,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZX2V4B,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 NZX2V4B,133?
For technical support, including NZX2V4B,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX2V4B,133 requirements.
6.How does Aetrix verify that NZX2V4B,133 is sourced from the original manufacturer or authorized distributors?
All NZX2V4B,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 NZX2V4B,133 meets industry standards.
7.What is the process for return or replacement of NZX2V4B,133?
All NZX2V4B,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX2V4B,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 NZX2V4B,133 part is unused and in its original packaging.
Return procedure for NZX2V4B,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZX2V4B,133 Tags
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