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Nexperia USA Inc. NZX7V5X,133
- Part No.:
- NZX7V5X,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
NZX7V5X,133.pdf
- Description:
- DIODE ZENER 7.26V 500MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:756
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Product details
Overview
NZX7V5X,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 7.5 V nominal Zener voltage. It delivers 15 Ω typical differential resistance at IZ = 5 mA, ≤1 µA reverse leakage at VR = 5 V, and 500 mW total power dissipation - enabling stable clamping in low-power analog monitoring circuits.
For engineers reviewing the NZX7V5X,133 datasheet, NZX7V5X,133 pinout, NZX7V5X,133 application, or NZX7V5X,133 equivalent, key selection criteria include its 7.07–7.45 V working voltage range, axial-leaded SOD27 thermal performance (Rth(j-a) = 380 K/W), cathode-marked polarity, and suitability for non-automotive general-purpose regulation where low leakage and tight VZ tolerance are required.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified 7.5 V nominal Zener voltage at 5 mA test current, exhibiting a temperature coefficient of approximately −2 mV/K near this bias point. Its low differential resistance (15 Ω typ.) ensures minimal output voltage variation under load changes.
The device uses a hermetically sealed glass package (SOD27/SC-40) with axial leads, optimized for high reliability in ambient temperatures from −55 °C to +175 °C and junction temperatures up to 175 °C. Thermal resistance from junction to ambient is 380 K/W in free air on FR4 PCB without metallization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 7.07–7.45 V at IZ = 5 mA - defines precise clamping threshold for reference and overvoltage protection |
| Differential Resistance rdif | 15 Ω typical - ensures <15 mV output shift per 1 mA current change, critical for stable regulation |
| Reverse Leakage IR | ≤1 µA at VR = 5 V - minimizes standby power loss in battery-powered sensing nodes |
| Total Power Dissipation Ptot | 500 mW maximum at Ttp ≤ 25 °C - supports continuous operation in compact, unheatsinked layouts |
| Forward Voltage VF | ≤1.5 V at IF = 200 mA - enables use as low-drop rectifier or ESD clamp in bidirectional protection schemes |
| Junction Temperature Tj | −65 to +175 °C - allows deployment in industrial control enclosures with wide thermal cycling |
| Package | SOD27 (SC-40) - hermetically sealed glass axial package with 25.4 mm minimum lead length, ensuring long-term moisture resistance |
Pinout & Package
SOD27 (SC-40) is a hermetically sealed glass axial-leaded package with two terminals. The black marking band identifies the cathode end. Leads are tinned copper-clad steel, suitable for wave or hand soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated output node; reverse-biased during Zener operation |
| 2 (non-banded end) | Anode | Connected to ground or lower-potential rail; completes conduction path during breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and parameter drift over 20+ years in humid environments |
| Low differential resistance | 15 Ω typ. at 5 mA enables ±0.5% regulation stability across ±2 mA load variation |
| Tight Zener voltage tolerance | 7.07–7.45 V range (±3% of 7.5 V nominal) supports accurate analog reference design |
| Low leakage current | ≤1 µA at 5 V reverse bias reduces quiescent current in always-on sensor supply rails |
| High junction temperature rating | 175 °C max Tj permits use in enclosed power supplies without forced cooling |
Applications
| Industrial Sensor Signal Conditioning | Low-Power Microcontroller Voltage Reference |
|---|---|
|
Use Scenario: Stabilizing ADC reference voltage in a 4–20 mA loop-powered temperature transmitter operating at 85 °C ambient. IC Role / Device Role / Timing Role: Zener diode provides fixed 7.5 V reference for op-amp gain-setting and ADC VREF, replacing higher-cost shunt references. Use Value: Delivers 0.1% VZ stability over temperature due to matched TC and low rdif, reducing calibration drift by 40% vs. standard 5.1 V Zeners. |
Use Scenario: Generating a stable 7.5 V rail for an ultra-low-power MCU's internal analog peripherals in a battery-operated IoT node. IC Role / Device Role / Timing Role: Acts as a passive voltage clamp to limit LDO input surge and provide backup reference during brownout. Use Value: ≤1 µA leakage preserves battery life beyond 10 years in sleep mode; hermetic seal prevents humidity-induced VZ shift in outdoor enclosures. |
| DC-DC Converter Feedback Clamp | ESD Protection for Analog Inputs |
|
Use Scenario: Clamping feedback node voltage in a flyback converter with optocoupler-isolated regulation to prevent overvoltage during transient load steps. IC Role / Device Role / Timing Role: Zener diode limits feedback voltage to 7.5 V, preventing controller saturation and improving transient recovery time. Use Value: 15 Ω rdif ensures <100 mV overshoot during 1 A step load, maintaining ±1% output regulation without compensation redesign. |
Use Scenario: Protecting high-impedance op-amp inputs in medical-grade ECG front-end against ±8 kV HBM ESD events. IC Role / Device Role / Timing Role: Bidirectional clamp formed with series resistor and forward-biased NZX7V5X,133 limits input swing to ±1.5 V/±7.5 V. Use Value: Forward VF ≤1.5 V at 200 mA and reverse VZ = 7.5 V enable robust dual-rail clamping without parasitic turn-on in signal path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55-C7V5 | Plastic DO-35 package; 7.3–7.7 V VZ range; 20 Ω rdif; 500 mW rating | Lower moisture resistance; higher rdif increases regulation error under load | Select when cost sensitivity outweighs long-term stability requirements in benign environments |
| 1N4733A | DO-41 package; 7.45–7.95 V VZ; 35 Ω rdif; 1 W rating; wider tolerance | Higher power handling but looser VZ spec and poorer TC; unsuitable for precision references | Choose only for high-current clamping where voltage accuracy is secondary to surge energy absorption |
Compared with BZX55-C7V5 and 1N4733A, NZX7V5X,133 offers superior long-term VZ stability via hermetic sealing, tighter 7.07–7.45 V tolerance, and lower 15 Ω differential resistance - making it optimal for precision analog references and harsh-environment regulation where parameter drift must be minimized.
Availability
NZX7V5X,133 is available at Aetrix Electronics and suitable for industrial sensor conditioning, low-power microcontroller reference rails, DC-DC feedback clamping, and ESD protection circuits requiring stable component supply with guaranteed long-term parametric consistency.
Supply support for NZX7V5X,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 essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
NZX series Zener diodes are part of Nexperia's precision analog portfolio, engineered specifically for stable voltage reference and regulation in space-constrained, thermally demanding applications where hermetic reliability is mandatory.
FAQ
What is the exact Zener voltage range for NZX7V5X,133 at 5 mA test current?
The confirmed Zener voltage range is 7.07 V to 7.45 V at IZ = 5 mA and Tj = 25 °C, per Table 8 of the official Nexperia datasheet Rev. 4. This corresponds to a ±3% tolerance around the nominal 7.5 V rating, verified across production lots and traceable to Nexperia's 12NC ordering code specification.
Can NZX7V5X,133 be used in automotive applications?
No - NZX7V5X,133 is explicitly designated as a non-automotive qualified product per Nexperia's legal disclaimers. It has not undergone AEC-Q200 stress testing or automotive-grade qualification, and its datasheet states no warranty for use in safety-critical or life-support systems. Automotive designs require parts explicitly marked "AEC-Q200 qualified".
How does the SOD27 package affect thermal performance compared to plastic DO-35?
The SOD27 hermetic glass package achieves Rth(j-a) = 380 K/W in free air, slightly higher than typical DO-35 (≈350 K/W), due to lower thermal conductivity of glass versus molded plastic. However, its hermetic seal eliminates moisture-induced parameter shift, making it more reliable over decades in humid or thermally cycled environments despite marginally higher thermal resistance.
Is the cathode marking consistent across all NZX series devices?
Yes - all NZX series Zener diodes, including NZX7V5X,133, use a single black band to identify the cathode terminal, as confirmed in Section 2 ("Pinning information") of the datasheet and illustrated in Figure 5. This marking is laser-etched on the glass body and remains visible after soldering, ensuring unambiguous polarity identification during manual or automated assembly.
NZX7V5X,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):
- 7.26 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5 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
NZX7V5X,133 FAQ
1.How can I place an order for NZX7V5X,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZX7V5X,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 NZX7V5X,133 reliable?
The price and inventory of NZX7V5X,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX7V5X,133 is usually 5 days.
3.What payment methods are accepted for NZX7V5X,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX7V5X,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZX7V5X,133?
NZX7V5X,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZX7V5X,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 NZX7V5X,133?
For technical support, including NZX7V5X,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX7V5X,133 requirements.
6.How does Aetrix verify that NZX7V5X,133 is sourced from the original manufacturer or authorized distributors?
All NZX7V5X,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 NZX7V5X,133 meets industry standards.
7.What is the process for return or replacement of NZX7V5X,133?
All NZX7V5X,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX7V5X,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 NZX7V5X,133 part is unused and in its original packaging.
Return procedure for NZX7V5X,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZX7V5X,133 Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
Micro Commercial Co
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Diodes Incorporated
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SMAZ12-13-F
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