Nexperia USA Inc. NZX9V1D,133
- Part No.:
- NZX9V1D,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
NZX9V1D,133.pdf
- Description:
- DIODE ZENER 9.3V 500MW ALF2
- Quantity:
- Payment:

- Shipping:

Inventory:9,821
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Product details
Overview
NZX9V1D,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 9.1 V nominal Zener voltage with ±5% tolerance, 20 Ω typical differential resistance at IZ = 5 mA, and ≤0.5 µA reverse leakage current at VR = 7.2 V. It operates across −65 °C to +175 °C ambient range and supports general-purpose regulation in low-power analog circuits.
For engineers reviewing the NZX9V1D,133 datasheet, NZX9V1D,133 pinout, NZX9V1D,133 application, or NZX9V1D,133 equivalent, this device is selected for stable 9.1 V clamping in power supply feedback paths, overvoltage protection circuits, and voltage reference stages where low thermal drift and hermetic reliability are required.
Technical Context
This Zener diode employs a planar silicon junction optimized for stable breakdown behavior under DC and low-duty-cycle pulse conditions (tp ≤ 300 µs, duty cycle δ ≤ 0.02). Its low differential resistance (20 Ω typ.) ensures minimal output voltage variation with load current changes in shunt regulator configurations.
The device exhibits a temperature coefficient of approximately −2 mV/K near 9.1 V, enabling predictable thermal drift compensation in reference designs. Junction-to-ambient thermal resistance is 380 K/W in free air on FR4 PCB, limiting continuous power dissipation to 500 mW at Tamb ≤ 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.1 V nominal, ±5% tolerance (8.7–9.5 V), specified at IZ = 5 mA - defines precise clamping threshold for regulation. |
| Differential Resistance (rdif) | 20 Ω typical at IZ = 5 mA - determines output impedance and load regulation error in shunt references. |
| Reverse Leakage Current (IR) | ≤0.5 µA at VR = 7.2 V - ensures minimal quiescent current in standby or high-impedance bias networks. |
| Total Power Dissipation (Ptot) | 500 mW maximum at Ttp ≤ 25 °C - sets upper limit for continuous DC power handling without derating. |
| Junction Temperature (Tj) | −65 °C to +175 °C operating range - enables use in extended-temperature industrial and automotive-adjacent environments. |
| Package | SOD27 (SC-40) hermetically sealed axial glass package - provides moisture immunity and long-term parameter stability vs. plastic packages. |
| Forward Voltage (VF) | ≤1.5 V at IF = 200 mA - supports use as a low-drop rectifier or ESD clamp in bidirectional protection schemes. |
Pinout & Package
SOD27 (SC-40) is a hermetically sealed axial-leaded glass package with 2 mm diameter body and 25.4 mm minimum lead length. The black band marks the cathode terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated output node in shunt configuration; accepts reverse-bias breakdown current. |
| 2 (unbanded end) | Anode | Connected to ground or lower-potential rail; completes current path during Zener conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and parameter drift over decades, critical for long-life instrumentation and aerospace applications. |
| Low differential resistance | 20 Ω typ. at 5 mA enables <±10 mV output shift per ±200 µA load change - suitable for precision 9.1 V references. |
| Low leakage current | ≤0.5 µA at 7.2 V allows integration into ultra-low-power sensor bias networks without degrading battery life. |
| Wide temperature operation | Rated from −65 °C to +175 °C ambient - supports deployment in engine control units, downhole tools, and industrial ovens. |
Applications
| Power Supply Feedback Regulation | Overvoltage Clamp Protection |
|---|---|
|
Use Scenario: Stabilizing output voltage in linear regulators or switching converter feedback loops using TL431-compatible topologies. IC Role / Device Role / Timing Role: Zener diode acts as a passive voltage reference in shunt configuration, setting error amplifier threshold. Use Value: 9.1 V nominal breakdown enables accurate 12 V output regulation with standard resistor dividers and maintains ±1% output tolerance over temperature. |
Use Scenario: Protecting microcontroller I/O pins or ADC inputs from transient overvoltage events exceeding 9.1 V. IC Role / Device Role / Timing Role: Functions as a fast-acting shunt clamp, diverting surge current away from sensitive downstream circuitry. Use Value: Low 20 Ω dynamic impedance limits clamped voltage overshoot to <9.3 V during 100 ns transients, preserving signal integrity. |
| Voltage Reference for Analog Circuits | Current Source Biasing |
|
Use Scenario: Providing stable bias voltage for op-amp comparators, DAC references, or sensor excitation circuits. IC Role / Device Role / Timing Role: Delivers fixed 9.1 V reference with minimal thermal drift (−2 mV/K) and low noise in low-current mode. Use Value: Enables 12-bit accuracy in 10 V full-scale systems by holding reference drift below ±0.5 LSB over −40 °C to +85 °C. |
Use Scenario: Establishing constant current through LEDs, photodiodes, or transducer elements via series resistor + Zener bias. IC Role / Device Role / Timing Role: Maintains fixed voltage drop across series resistor to generate stable bias current independent of supply variation. Use Value: Supports 1 mA ±2% current generation with 1 kΩ resistor, even with ±10% input supply fluctuation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55-C9V1 (ON Semiconductor) | Plastic DO-35 package; 25 Ω max rdif; 1 µA max IR at 7.2 V; 500 mW rating. | Limited to commercial temperature range (−65 °C to +150 °C); higher leakage reduces suitability in ultra-low-power designs. | Select when cost sensitivity outweighs hermetic reliability and extended temperature needs. |
| 1N4739A (Vishay) | DO-41 package; 9.1 V ±5%; 8 Ω max rdif; 10 µA max IR at 7.6 V; 1 W rating. | Higher power rating but larger footprint and higher leakage - better for high-current clamping, worse for precision references. | Select when >500 mW dissipation is required and board space permits larger axial package. |
Compared with BZX55-C9V1 and 1N4739A, NZX9V1D,133 offers superior long-term stability via hermetic sealing and lowest leakage among 9.1 V Zeners, making it optimal for precision reference and extended-temperature applications despite its 500 mW limit.
Availability
NZX9V1D,133 is available at Aetrix Electronics and suitable for power supply feedback regulation, overvoltage clamp protection, and voltage reference for analog circuits requiring stable component supply across industrial, test equipment, and embedded control programs.
Supply support for NZX9V1D,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.
The NZX series targets general-purpose Zener regulation with hermetic stability, serving industrial, automotive-adjacent, and instrumentation applications demanding long-term parameter consistency.
FAQ
What is the maximum continuous power dissipation for NZX9V1D,133?
The maximum total power dissipation is 500 mW at ambient temperatures ≤25 °C. Derating is required above 25 °C at 4.2 mW/°C based on Rth(j-a) = 380 K/W. At 85 °C ambient, maximum allowable power drops to approximately 250 mW to maintain junction temperature below 175 °C.
How is polarity identified on the NZX9V1D,133 package?
The cathode is marked by a distinct black band on the glass body of the SOD27 package. Pin 1 (cathode) is the banded end; Pin 2 (anode) is the unmarked end. This marking aligns with standard diode polarity conventions and matches the graphic symbol shown in Nexperia's official pinning diagram.
Does NZX9V1D,133 meet automotive qualification standards?
No. NZX9V1D,133 is not automotive-qualified. It is rated for industrial temperature ranges (−65 °C to +175 °C) but has not undergone AEC-Q200 stress testing or been validated for automotive safety-critical systems. For automotive use, consult Nexperia's AUTOMOTIVE-grade Zener portfolio such as the BZT52-B9V1 series.
What is the typical temperature coefficient of NZX9V1D,133 at 9.1 V?
The typical temperature coefficient is −2 mV/K near 9.1 V, as confirmed by Nexperia's Fig 4 (Temperature coefficient vs. working current). This negative drift means output voltage decreases by ~2 mV per 1 °C rise in junction temperature, enabling predictable compensation in reference designs.
NZX9V1D,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):
- 9.3 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 6 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
NZX9V1D,133 FAQ
1.How can I place an order for NZX9V1D,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZX9V1D,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 NZX9V1D,133 reliable?
The price and inventory of NZX9V1D,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX9V1D,133 is usually 5 days.
3.What payment methods are accepted for NZX9V1D,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX9V1D,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZX9V1D,133?
NZX9V1D,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZX9V1D,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 NZX9V1D,133?
For technical support, including NZX9V1D,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX9V1D,133 requirements.
6.How does Aetrix verify that NZX9V1D,133 is sourced from the original manufacturer or authorized distributors?
All NZX9V1D,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 NZX9V1D,133 meets industry standards.
7.What is the process for return or replacement of NZX9V1D,133?
All NZX9V1D,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX9V1D,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 NZX9V1D,133 part is unused and in its original packaging.
Return procedure for NZX9V1D,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZX9V1D,133 Tags

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