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Nexperia USA Inc. NZX2V1B,133
- Part No.:
- NZX2V1B,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
NZX2V1B,133.pdf
- Description:
- DIODE ZENER 2.1V 500MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:45,503
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Product details
Overview
NZX2V1B,133 from Nexperia is a single Zener diode in a hermetically sealed SOD27 (SC-40) glass package, designed for precision voltage regulation at 2.1 V nominal Zener voltage with ±0.1 V tolerance (2.0–2.2 V), 100 Ω typical differential resistance at IZ = 5 mA, and ≤5 μA reverse leakage current. It delivers stable reference performance in low-power analog circuits, power supply feedback loops, and overvoltage protection stages.
For engineers reviewing the NZX2V1B,133 datasheet, NZX2V1B,133 pinout, NZX2V1B,133 application, or NZX2V1B,133 equivalent, this component supports critical low-voltage stabilization tasks where tight VZ tolerance, low thermal drift, and reliable hermetic sealing under ambient temperatures from −55 °C to +175 °C are required.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 2.1 V at 5 mA test current, exhibiting a temperature coefficient near zero in its low-voltage range-critical for stable biasing in sensor interfaces and reference generators. Its low 100 Ω differential resistance ensures minimal output impedance variation across operating current.
The device uses axial-leaded SOD27 packaging with cathode-indicating band marking, optimized for through-hole mounting on FR4 PCBs. Thermal resistance from junction to ambient is 380 K/W in free air, supporting operation up to 175 °C junction temperature with 500 mW total power dissipation limit.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.0–2.2 V at IZ = 5 mA - defines precise low-voltage regulation point for 2.1 V nominal systems |
| Differential Resistance (rdif) | 100 Ω max at IZ = 5 mA - ensures stable output voltage under varying load current |
| Reverse Leakage Current (IR) | ≤5 μA at VR = 0.5 V - minimizes standby power loss in battery-sensitive designs |
| Total Power Dissipation (Ptot) | 500 mW at Ttp ≤ 25 °C - sets maximum continuous DC or pulsed power handling capability |
| Junction Temperature (Tj) | −65 to +175 °C - enables deployment in extended industrial and automotive-adjacent environments |
| Thermal Resistance (Rth(j-a)) | 380 K/W in free air - determines self-heating rise per watt, critical for derating in compact layouts |
Pinout & Package
Package: SOD27 (SC-40), hermetically sealed axial-leaded glass package with 2.54 mm lead spacing and 4.25 mm maximum body length; cathode identified by black 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 reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift in humid or high-reliability environments |
| Low differential resistance | 100 Ω max ensures <10 mV output shift per 1 mA load change-ideal for precision references |
| Tight Zener voltage tolerance | ±0.1 V at 2.1 V enables accurate 2.1 V rail clamping without external trimming |
| Low leakage current | ≤5 μA at 0.5 V reverse bias reduces quiescent current in always-on protection circuits |
Applications
| Power Supply Feedback | Sensor Bias Reference |
|---|---|
Use Scenario: Regulating feedback voltage in linear regulators or switching converter error amplifiers. IC Role / Device Role / Timing Role: Provides stable 2.1 V reference to comparator or op-amp input for output voltage sensing. Use Value: Enables accurate ±1% output regulation without trimming, leveraging tight VZ tolerance and low rdif. |
Use Scenario: Supplying bias voltage to analog sensors (e.g., thermistors, RTDs) requiring stable excitation. IC Role / Device Role / Timing Role: Acts as low-drift voltage source for sensor bridge excitation or ADC reference scaling. Use Value: Maintains sensor linearity over temperature due to near-zero TC in 2.1 V range and hermetic stability. |
| Overvoltage Clamp | Logic-Level Protection |
Use Scenario: Protecting microcontroller I/O pins from transient overvoltage events. IC Role / Device Role / Timing Role: Shunts excess energy to ground when input exceeds 2.1 V, limiting voltage swing. Use Value: Responds within nanoseconds to transients while sustaining ≤5 μA leakage during normal operation. |
Use Scenario: Level-shifting or clamping 3.3 V logic signals to safe 2.1 V thresholds for legacy 2.1 V interface ICs. IC Role / Device Role / Timing Role: Clamps high-side signal peaks to prevent damage to downstream 2.1 V tolerant inputs. Use Value: Provides deterministic 2.1 V ceiling with minimal forward conduction (<1.5 V @ 200 mA) during fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C2V1 (ON Semiconductor) | Same 2.1 V nominal VZ, but plastic DO-35 package; 100 Ω rdif; higher leakage (≤50 μA) | Lacks hermetic seal; unsuitable for high-humidity or long-life sealed systems | Select when cost sensitivity outweighs environmental robustness requirements |
| 1N5221B (Microchip) | 2.1 V VZ, DO-35 package; 150 Ω rdif; 10 μA leakage; wider VZ tolerance (±5%) | Higher impedance and looser tolerance reduce regulation accuracy in precision circuits | Choose only for non-critical clamping where absolute voltage accuracy is secondary |
Compared with BZX55C2V1 and 1N5221B, NZX2V1B,133 offers superior environmental stability via hermetic glass packaging, tighter VZ tolerance (±0.1 V vs. ±5%), and lower leakage-making it preferred for industrial instrumentation and long-lifecycle embedded systems.
Availability
NZX2V1B,133 is available at Aetrix Electronics and suitable for power supply feedback, sensor bias reference, overvoltage clamp, and logic-level protection requiring stable component supply across industrial, test equipment, and embedded control applications.
Supply support for NZX2V1B,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 focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.
The NZX series targets general-purpose Zener regulation with hermetic reliability, emphasizing stable low-voltage references for analog signal conditioning, power management, and protection circuits in harsh environments.
FAQ
What is the maximum continuous reverse current this Zener can handle?
The NZX2V1B,133 supports a maximum forward current of 250 mA per Absolute Maximum Ratings, but for Zener operation, the recommended test current is 5 mA. At that level, it maintains 2.1 V regulation with ≤100 Ω dynamic resistance. Continuous reverse current beyond 5 mA must be limited by series resistance to stay within 500 mW power dissipation and avoid exceeding 175 °C junction temperature.
Does this part have automotive qualification?
No, NZX2V1B,133 is not automotive-qualified. The datasheet explicitly states it is a non-automotive qualified product, lacking AEC-Q200 stress testing and automotive-specific reliability validation. It is rated for industrial use with ambient temperature range −55 °C to +175 °C, but should not be deployed in safety-critical vehicle subsystems without additional qualification.
How does the SOD27 package affect thermal performance compared to DO-35?
The SOD27 (SC-40) hermetic glass package has higher thermal resistance-380 K/W junction-to-ambient in free air-versus ~300 K/W for standard DO-35 plastic packages. This means greater self-heating at equal power; designers must derate power more aggressively or ensure adequate PCB copper area and airflow to maintain safe junction temperature.
Can this Zener be used in forward conduction mode?
Yes: the datasheet specifies forward voltage ≤1.5 V at 200 mA, confirming usable forward-bias operation. However, its primary design intent is reverse-bias Zener regulation. Forward use is limited to low-duty-cycle clamping or indicator functions-not as a rectifier-due to low surge rating and lack of specified repetitive peak forward current.
NZX2V1B,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):
- 2.1 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 500 mV
- 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
NZX2V1B,133 FAQ
1.How can I place an order for NZX2V1B,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZX2V1B,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 NZX2V1B,133 reliable?
The price and inventory of NZX2V1B,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX2V1B,133 is usually 5 days.
3.What payment methods are accepted for NZX2V1B,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX2V1B,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZX2V1B,133?
NZX2V1B,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZX2V1B,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 NZX2V1B,133?
For technical support, including NZX2V1B,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX2V1B,133 requirements.
6.How does Aetrix verify that NZX2V1B,133 is sourced from the original manufacturer or authorized distributors?
All NZX2V1B,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 NZX2V1B,133 meets industry standards.
7.What is the process for return or replacement of NZX2V1B,133?
All NZX2V1B,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX2V1B,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 NZX2V1B,133 part is unused and in its original packaging.
Return procedure for NZX2V1B,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZX2V1B,133 Tags
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