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Nexperia USA Inc. NZX5V1B,133
- Part No.:
- NZX5V1B,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
NZX5V1B,133.pdf
- Description:
- DIODE ZENER 5V 500MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:5,874
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Product details
Overview
NZX5V1B,133 from Nexperia is a single Zener diode in a hermetically sealed SOD27 (SC-40) axial glass package, designed for precision voltage regulation at 4.9–5.1 V nominal Zener voltage with 2 Ω typical differential resistance and ≤2 µA reverse leakage at 5 mA test current. It delivers stable reference performance in low-power analog circuits, power supply feedback paths, and overvoltage protection clamps.
For engineers reviewing the NZX5V1B,133 datasheet, NZX5V1B,133 pinout, NZX5V1B,133 application, or NZX5V1B,133 equivalent, this part supports design validation of ±1% tolerance Zener references, thermal-stable biasing under 175 °C junction temperature, and compact axial-leaded replacement in legacy regulator designs requiring 500 mW total power dissipation.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 4.9–5.1 V at IZ = 5 mA, exhibiting low dynamic impedance (≤100 Ω max, 2 Ω typ) and minimal temperature coefficient variation across its operating range. Its glass-sealed SOD27 construction ensures long-term parameter stability and hermetic reliability in harsh ambient conditions.
The device complies with IEC 60134 absolute maximum ratings, supporting continuous forward current up to 250 mA and junction temperatures up to 175 °C. Thermal resistance from junction to ambient is 380 K/W in free air on FR4 PCB, enabling predictable derating in unheatsinked applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.9–5.1 V at IZ = 5 mA - defines precise regulation threshold for feedback and clamp circuits |
| Differential Resistance (rdif) | ≤100 Ω (max), 2 Ω (typ) - ensures minimal output voltage shift under load current variation |
| Reverse Leakage (IR) | ≤2 µA at VR = 4.5 V - guarantees low standby power loss in high-impedance reference nodes |
| 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 operation in extended industrial and automotive-adjacent environments |
| Thermal Resistance (Rth(j-a)) | 380 K/W in free air - determines required ambient cooling for safe thermal margin at rated power |
Pinout & Package
Package: SOD27 (SC-40), hermetically sealed axial glass package with 2 leads; cathode identified by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node in shunt configuration; polarity must be observed for correct breakdown conduction |
| 2 | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and parameter drift over time, critical for long-life industrial instrumentation |
| Low differential resistance | 2 Ω typical value minimizes regulation error under varying load currents in precision references |
| Low leakage current | ≤2 µA at 4.5 V ensures negligible current draw in high-impedance bias networks |
| Wide operating temperature range | −65 to +175 °C junction rating supports deployment in engine control units and outdoor power systems |
Applications
| Power Supply Feedback | Overvoltage Clamp |
|---|---|
|
Use Scenario: Used in the feedback divider of isolated DC-DC converters to regulate output voltage accuracy. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 5.0 V reference point for optocoupler-driven error amplifiers. Use Value: ±1% VZ tolerance and low rdif maintain <±1.5% output regulation across line/load/temperature. |
Use Scenario: Placed across sensitive IC inputs to limit transient overvoltage events. IC Role / Device Role / Timing Role: Fast-acting crowbar element that conducts above 5.1 V to divert surge current away from downstream logic. Use Value: 2 Ω dynamic impedance ensures clamping voltage stays within 5.3 V at 100 mA surge, protecting 5 V tolerant interfaces. |
| Reference Voltage Source | Current Source Bias |
|
Use Scenario: Provides stable bias for op-amp comparators and ADC reference buffers in sensor signal chains. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage node for precision analog front-ends requiring sub-10 ppm/°C stability. Use Value: ≤2 µA leakage avoids loading high-impedance dividers; glass package ensures long-term VZ repeatability. |
Use Scenario: Sets constant current through LED strings or transistor bias networks via series resistor. IC Role / Device Role / Timing Role: Fixed-voltage drop element establishing IOUT = (VZ − VBE)/R in simple current mirrors. Use Value: Tight 4.9–5.1 V tolerance yields ±2% current accuracy without trimming; 500 mW rating supports >100 mA designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C5V1 | Plastic DO-35 package; 5.1 V nominal, ±5% tolerance; rdif ≤ 600 Ω | Lower cost but higher leakage (≤5 µA) and wider VZ tolerance reduces precision in feedback loops | Select when cost sensitivity outweighs regulation accuracy and long-term stability requirements |
| 1N4733A | DO-41 package; 5.1 V nominal, ±5% tolerance; Ptot = 1 W; rdif ≤ 7 Ω | Higher power rating suits higher-current clamps but larger footprint limits board space-constrained designs | Choose for >500 mW continuous dissipation needs where axial lead spacing allows DO-41 mounting |
Compared with BZX55C5V1 and 1N4733A, NZX5V1B,133 offers tighter ±1% VZ tolerance, lower leakage, and hermetic reliability-making it optimal for precision regulation where parameter stability over temperature and lifetime is critical.
Availability
NZX5V1B,133 is available at Aetrix Electronics and suitable for power supply feedback, overvoltage protection, and precision reference voltage generation requiring stable component supply across industrial, instrumentation, and embedded control programs.
Supply support for NZX5V1B,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, serving automotive, industrial, and consumer markets with rigorous quality and sustainability standards.
The NZX series targets general-purpose Zener regulation with hermetic glass packaging for long-term stability in demanding environments-designed specifically for applications where parameter drift and moisture sensitivity must be eliminated.
FAQ
What is the exact Zener voltage tolerance for NZX5V1B,133 at 5 mA test current?
The NZX5V1B,133 has a guaranteed Zener voltage range of 4.9 V to 5.1 V at IZ = 5 mA, corresponding to ±1% tolerance about the nominal 5.0 V value. This tight specification is confirmed in Table 8 of the official Nexperia datasheet Rev. 4 (2011), and applies under standard Tj = 25 °C conditions.
Can NZX5V1B,133 be used in surface-mount designs?
No-NZX5V1B,133 uses the axial-leaded SOD27 (SC-40) glass package and is not compatible with SMT assembly. It requires through-hole mounting with 25.4 mm lead spacing. For surface-mount equivalents, consider Nexperia's BZX384-B5V1 (SOD-323) or PZM5.1NB (SOT-23), which offer similar electrical specs in tape-and-reel formats.
What is the maximum allowable forward current for NZX5V1B,133?
The absolute maximum forward current is 250 mA, per Table 5 (Limiting Values) in the Nexperia datasheet. However, forward conduction is not its intended operating mode; sustained forward bias above ~1.5 V should be avoided to prevent degradation of Zener characteristics and long-term reliability.
Does NZX5V1B,133 have automotive qualification?
No-NZX5V1B,133 is not AEC-Q200 qualified. The datasheet explicitly states "Non-automotive qualified products" and warns against use in safety-critical or automotive applications unless separately validated by the customer. Its 175 °C junction rating supports under-hood ambient conditions, but qualification testing is not performed or guaranteed.
NZX5V1B,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):
- 5 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 2 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
NZX5V1B,133 FAQ
1.How can I place an order for NZX5V1B,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZX5V1B,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 NZX5V1B,133 reliable?
The price and inventory of NZX5V1B,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX5V1B,133 is usually 5 days.
3.What payment methods are accepted for NZX5V1B,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX5V1B,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZX5V1B,133?
NZX5V1B,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZX5V1B,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 NZX5V1B,133?
For technical support, including NZX5V1B,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX5V1B,133 requirements.
6.How does Aetrix verify that NZX5V1B,133 is sourced from the original manufacturer or authorized distributors?
All NZX5V1B,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 NZX5V1B,133 meets industry standards.
7.What is the process for return or replacement of NZX5V1B,133?
All NZX5V1B,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX5V1B,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 NZX5V1B,133 part is unused and in its original packaging.
Return procedure for NZX5V1B,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZX5V1B,133 Tags
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