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Nexperia USA Inc. NZX4V7D,133
- Part No.:
- NZX4V7D,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
NZX4V7D,133.pdf
- Description:
- DIODE ZENER 4.8V 500MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:6,165
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Product details
Overview
NZX4V7D,133 from Nexperia is a single Zener diode in a hermetically sealed SOD27 (SC-40) glass package, designed for precision voltage regulation and reference functions at 4.7 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 current (≤3 µA at VR = 2 V), supporting stable operation in low-power analog and power-supply feedback circuits.
For engineers reviewing the NZX4V7D,133 datasheet, NZX4V7D,133 pinout, NZX4V7D,133 application, or NZX4V7D,133 equivalent, this device is selected for its tight voltage tolerance, low thermal drift (−2 to +12 mV/K across IZ), axial-leaded SOD27 mechanical robustness, and suitability in voltage-clamping, overvoltage protection, and precision biasing where hermetic sealing enhances long-term reliability under temperature cycling.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal working voltage of 4.7 V at IZ = 5 mA, exhibiting a typical temperature coefficient between −2 mV/K and +12 mV/K depending on test current. Its low differential resistance (≤100 Ω) ensures minimal dynamic impedance variation under load transients.
The device is rated for junction temperatures up to 175 °C and ambient operating range from −55 °C to +175 °C, with thermal resistance from junction to ambient of 380 K/W in free air on FR4 PCB. Pulse testing follows IEC 60134 conditions (tp ≤ 300 µs, duty cycle δ ≤ 0.02).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.7 V nominal, ±5% tolerance at IZ = 5 mA - defines precise clamping/reference point in feedback loops |
| Differential Resistance (rdif) | ≤100 Ω at IZ = 5 mA - ensures stable regulation under small-signal load variations |
| Reverse Current (IR) | ≤3 µA at VR = 2 V - minimizes standby power loss in high-impedance bias networks |
| Total Power Dissipation (Ptot) | 500 mW at Ttp ≤ 25 °C - supports continuous operation in compact, unheatsinked PCB layouts |
| Forward Voltage (VF) | ≤1.5 V at IF = 200 mA - enables use as low-drop rectifier or polarity indicator in dual-function designs |
| Junction Temperature (Tj) | −65 °C to +175 °C - allows deployment in extended-temperature industrial and automotive-adjacent environments |
Pinout & Package
Package: SOD27 (SC-40), hermetically sealed axial-leaded glass package with 2 mm diameter body and 25.4 mm lead length minimum; marking band denotes cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated output node or voltage reference point; reverse-biased during Zener operation |
| 2 (non-banded end) | Anode | Connected to ground or lower-potential rail; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass encapsulation | Prevents moisture ingress and parameter drift over decades in humid or thermally cycled environments |
| Low differential resistance | ≤100 Ω enables <1% output voltage deviation under ±1 mA load step in shunt regulator topologies |
| Controlled temperature coefficient | −2 to +12 mV/K allows predictable VZ shift across −55 °C to +125 °C operating range |
| High-reliability axial lead form | 25.4 mm minimum lead length supports manual soldering, wave soldering, and mechanical strain relief in through-hole assemblies |
Applications
| Power Supply Feedback | Overvoltage Clamp |
|---|---|
|
Use Scenario: Shunt regulator in isolated flyback auxiliary supply for microcontroller biasing. IC Role / Device Role / Timing Role: Zener reference sets TL431 feedback threshold; stabilizes 5 V output under line/load transients. Use Value: 4.7 V nominal voltage matches common logic-level thresholds; ±5% tolerance ensures consistent startup behavior across production lots. |
Use Scenario: Input-stage protection against 12 V rail surges in industrial sensor interface. IC Role / Device Role / Timing Role: Clamps transient spikes above 5.2 V to safeguard downstream op-amp inputs. Use Value: 500 mW rating absorbs 100 ms overvoltage events without degradation; hermetic seal prevents corrosion-induced failure in dusty environments. |
| Bias Network Reference | Signal Level Shifting |
|
Use Scenario: Establishing stable 4.7 V reference for ADC input scaling in battery-powered data loggers. IC Role / Device Role / Timing Role: Provides low-drift voltage reference for resistor-divider network feeding SAR ADC. Use Value: ≤3 µA reverse leakage minimizes current draw from coin-cell source; low rdif maintains accuracy across temperature. |
Use Scenario: Level-shifting 3.3 V logic signals to 4.7 V domain for legacy interface compatibility. IC Role / Device Role / Timing Role: Cathode tied to 4.7 V rail; anode accepts 3.3 V input to clamp high-state overshoot and define logic-high threshold. Use Value: Forward conduction (≤1.5 V @ 200 mA) permits bidirectional clamping; axial leads simplify routing in dense mixed-signal PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55-C4V7 | Plastic DO-35 package; 5% tolerance; 500 mW rating; rdif ≤ 100 Ω at 5 mA | Lacks hermetic seal; higher moisture sensitivity; lower long-term stability in humid environments | Select when cost sensitivity outweighs reliability requirements and ambient humidity is controlled |
| 1N4732A | DO-41 plastic package; 5% tolerance; 1 W rating; rdif ≤ 9 Ω at 20 mA | Higher power handling but larger footprint; tighter rdif only at higher test current (20 mA) | Select when >500 mW surge capability is required and board space permits larger axial package |
Compared with BZX55-C4V7 and 1N4732A, NZX4V7D,133 offers superior long-term parameter stability via hermetic glass packaging and optimized low-current impedance performance, making it preferred for mission-critical analog references where environmental resilience and low-leakage operation are design priorities.
Availability
NZX4V7D,133 is available at Aetrix Electronics and suitable for power supply feedback, overvoltage clamping, bias network referencing, and signal level shifting requiring stable component supply across industrial control, instrumentation, and embedded sensor systems.
Supply support for NZX4V7D,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.
NZX series Zener diodes are part of Nexperia's general-purpose discrete portfolio, engineered for precision voltage reference and regulation in cost-sensitive, high-reliability applications where hermetic sealing and tight parametric control are essential.
FAQ
What is the maximum reverse voltage (VR) before significant leakage occurs in NZX4V7D,133?
The datasheet specifies a maximum reverse current (IR) of 3 µA at VR = 2 V. At VR = 4.2 V (90% of nominal VZ), leakage remains below 0.5 µA per typical characterization curves. Operation above 4.2 V enters the knee region, where current rises nonlinearly toward breakdown at 4.7 V.
Can NZX4V7D,133 be used in surface-mount designs?
No - NZX4V7D,133 uses the axial-leaded SOD27 (SC-40) glass package and is not compatible with SMT reflow or pick-and-place processes. It requires through-hole mounting with lead forming and axial orientation. For SMT alternatives, consider Nexperia's PZM series or BZX84-C4V7 in SOT-23.
How does thermal resistance affect power derating in NZX4V7D,133?
With Rth(j-a) = 380 K/W in free air, power must be linearly derated above 25 °C ambient: Ptot = 500 mW × (1 − (Tamb − 25)/150). At 75 °C ambient, maximum allowable dissipation drops to 333 mW to maintain Tj ≤ 175 °C.
Is NZX4V7D,133 suitable for automotive applications?
No - this device is not AEC-Q200 qualified and lacks automotive-grade screening, qualification testing, or guaranteed PPAP documentation. Nexperia explicitly states non-automotive qualification in the datasheet legal section; use only in industrial, commercial, or consumer equipment unless fully requalified by the customer.
NZX4V7D,133 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- NZX
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 4.8 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 3 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
NZX4V7D,133 FAQ
1.How can I place an order for NZX4V7D,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZX4V7D,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 NZX4V7D,133 reliable?
The price and inventory of NZX4V7D,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX4V7D,133 is usually 5 days.
3.What payment methods are accepted for NZX4V7D,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX4V7D,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZX4V7D,133?
NZX4V7D,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZX4V7D,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 NZX4V7D,133?
For technical support, including NZX4V7D,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX4V7D,133 requirements.
6.How does Aetrix verify that NZX4V7D,133 is sourced from the original manufacturer or authorized distributors?
All NZX4V7D,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 NZX4V7D,133 meets industry standards.
7.What is the process for return or replacement of NZX4V7D,133?
All NZX4V7D,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX4V7D,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 NZX4V7D,133 part is unused and in its original packaging.
Return procedure for NZX4V7D,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZX4V7D,133 Tags
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
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SMAJ4744A-TP
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BZT52C3V6LP-7
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SMAZ12-13-F
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