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Nexperia USA Inc. NZX22B,133
- Part No.:
- NZX22B,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
NZX22B,133.pdf
- Description:
- DIODE ZENER 22.1V 500MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:4,998
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Product details
Overview
NZX22B,133 from Nexperia is a single Zener diode in a hermetically sealed SOD27 (SC-40) glass package, designed for precision voltage regulation at 22 V nominal Zener voltage with ±5% tolerance, 35 Ω typical differential resistance at IZ = 5 mA, and ≤0.1 µA reverse leakage at VR = 18.9 V - used in low-power reference and overvoltage protection circuits.
For engineers reviewing the NZX22B,133 datasheet, NZX22B,133 pinout, NZX22B,133 application, or NZX22B,133 equivalent, this part serves as a stable, low-leakage, axial-leaded Zener solution for analog voltage clamping, power supply feedback, and signal-level regulation where thermal stability and long-term reliability in industrial ambient conditions are required.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 22 V at 5 mA test current, exhibiting a temperature coefficient near zero at this bias point to minimize drift across operating temperature ranges. Its hermetic glass package ensures stable electrical characteristics under humidity and thermal cycling stress.
The device complies with IEC 60134 absolute maximum ratings, supports continuous forward current up to 250 mA, and delivers 500 mW total power dissipation at Tamb ≤ 25 °C - with thermal resistance from junction to ambient rated at 380 K/W on FR4 PCB without copper pour.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22 V nominal, min 21.6 V / max 22.6 V at IZ = 5 mA - defines precise clamping threshold for feedback or protection circuits |
| Differential Resistance (rdif) | 35 Ω typical at IZ = 5 mA - determines regulation stiffness and output impedance in shunt regulator configurations |
| Reverse Leakage Current (IR) | ≤0.1 µA at VR = 18.9 V - enables ultra-low quiescent current operation in battery-powered or high-impedance sensing nodes |
| Power Dissipation (Ptot) | 500 mW maximum at Tamb ≤ 25 °C - sets usable DC or pulsed power envelope for thermal design margin |
| Forward Voltage (VF) | ≤1.5 V at IF = 200 mA - supports bidirectional transient suppression when used with series resistor in AC-coupled paths |
| Junction Temperature (Tj) | −65 °C to +175 °C - allows deployment in extended-temperature industrial and automotive-adjacent environments |
| Package | SOD27 (SC-40), axial-leaded, hermetically sealed glass - provides moisture immunity and long-term parameter stability vs. plastic-packaged alternatives |
Pinout & Package
SOD27 (SC-40) is a small hermetically sealed glass package with two axial leads; the black band marks the cathode terminal. Mounting requires ≤8 mm lead length on FR4 PCB for thermal performance compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated voltage node; reverse-biased during Zener operation; carries full load current in shunt configuration |
| 2 (non-banded end) | Anode | Connected to ground or lower-potential reference; completes current path during regulation or forward conduction |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents parameter drift due to humidity ingress - critical for long-life industrial instrumentation and telecom infrastructure |
| Low differential resistance | 35 Ω typical at 5 mA - improves regulation accuracy under varying load currents in precision reference applications |
| Low leakage current | ≤0.1 µA at 18.9 V - minimizes error in high-impedance voltage divider networks and extends battery life in portable devices |
| Stable temperature coefficient | Near-zero TC around 22 V at IZ = 5 mA - reduces output voltage drift over −55 °C to +150 °C operating range |
| IEC 60134 compliant limiting values | Rated for 250 mA forward current and 500 mW total dissipation - enables robust surge handling in transient-prone power rails |
Applications
| Industrial Power Supply Feedback | Automotive Sensor Reference |
|---|---|
|
Use Scenario: Stabilizing feedback voltage in isolated flyback or buck-derived auxiliary supplies for PLC I/O modules. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 22 V reference to optocoupler input or TL431 comparator network. Use Value: Maintains regulation accuracy within ±1% over 40–85 °C ambient, reducing need for trimming resistors in production calibration. |
Use Scenario: Generating a stable bias voltage for Hall-effect position sensors in engine control units. IC Role / Device Role / Timing Role: Precision Zener clamp ensuring sensor IC supply remains within 21.6–22.6 V despite battery transients. Use Value: Enables reliable sensor operation during cold-crank (6 V) to load-dump (40 V) events without external LDO or TVS dependency. |
| Test Equipment Voltage Calibration | Telecom Line Interface Protection |
|
Use Scenario: Serving as traceable voltage standard in handheld multimeter reference stages. IC Role / Device Role / Timing Role: Primary Zener element in buffered 22 V reference source with <1 ppm/°C drift contribution. Use Value: Supports 4½-digit accuracy over 1-year calibration interval due to hermetic stability and low TC. |
Use Scenario: Clamping common-mode surges on RS-485 transceiver bus lines in outdoor base stations. IC Role / Device Role / Timing Role: Bidirectional transient suppressor (anode-to-ground, cathode-to-line) limiting voltage excursions to ±22 V. Use Value: Withstands repeated 10/1000 µs surges up to 10 A when paired with series impedance, per IEC 61000-4-5 Level 3. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C22 | Plastic SOD-523 package; 22 V ±5%, rdif = 55 Ω; IR = 0.1 µA at 18.9 V | Limited to ≤150 °C junction temp; higher thermal resistance (500 K/W); not hermetically sealed | Select for cost-sensitive consumer designs where long-term humidity exposure is absent and thermal margin is sufficient. |
| 1N4742A | DO-41 package; 22 V ±5%, rdif = 23 Ω; IR = 5 µA at 18 V; Ptot = 1 W | Larger footprint; higher leakage; less stable TC; suitable only for non-critical, high-current shunt use | Choose when >500 mW continuous dissipation is needed and board space permits axial DO-41 mounting. |
Compared with BZX55C22 and 1N4742A, NZX22B,133 offers superior long-term stability via hermetic sealing, tighter thermal resistance control, and lower leakage - making it preferred for metrology-grade references and harsh-environment industrial systems where parameter drift must be minimized over 10+ years.
Availability
NZX22B,133 is available at Aetrix Electronics and suitable for industrial power supply feedback, telecom line interface protection, test equipment voltage calibration, and automotive sensor reference requiring stable component supply across extended temperature and lifetime requirements.
Supply support for NZX22B,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 solutions with focus on efficiency, reliability, and miniaturization for industrial, automotive, and computing markets.
The NZX series targets general-purpose Zener regulation with emphasis on hermetic stability, tight voltage tolerance, and low leakage - engineered for applications demanding decades-long parameter consistency in uncontrolled environments.
FAQ
What is the Zener voltage tolerance for NZX22B,133?
The NZX22B,133 has a nominal Zener voltage of 22 V with a tolerance of ±5%, meaning the actual measured VZ falls between 21.6 V and 22.6 V when tested at IZ = 5 mA and Tj = 25 °C. This tolerance is guaranteed per Nexperia's product data sheet Rev. 4 and applies to all units in production lot traceability.
Can NZX22B,133 be used in surface-mount designs?
No - NZX22B,133 uses the axial-leaded SOD27 (SC-40) hermetic glass package and is not compatible with SMT reflow or pick-and-place processes. It requires through-hole mounting with ≤8 mm lead length on FR4 PCB to meet thermal resistance specifications. For SMT alternatives, consider BZX384-B22 or MMBZ5242B.
What is the maximum allowable forward current for NZX22B,133?
The absolute maximum forward current is 250 mA per IEC 60134 limiting values. At IF = 200 mA, forward voltage is guaranteed ≤1.5 V. Exceeding 250 mA risks permanent junction damage even for short pulses, and sustained forward conduction above 100 mA requires thermal derating per Rth(j-a) = 380 K/W.
How does the temperature coefficient behave at 22 V?
At 22 V nominal Zener voltage, the NZX22B,133 exhibits a near-zero temperature coefficient (≈0 mV/K) when biased at IZ = 5 mA, as confirmed by Fig 4 in the datasheet. This minimizes voltage drift over −55 °C to +150 °C ambient, making it ideal for reference circuits where thermal stability is critical.
NZX22B,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):
- 22.1 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 65 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 15.4 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
NZX22B,133 FAQ
1.How can I place an order for NZX22B,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZX22B,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 NZX22B,133 reliable?
The price and inventory of NZX22B,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX22B,133 is usually 5 days.
3.What payment methods are accepted for NZX22B,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX22B,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZX22B,133?
NZX22B,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZX22B,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 NZX22B,133?
For technical support, including NZX22B,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX22B,133 requirements.
6.How does Aetrix verify that NZX22B,133 is sourced from the original manufacturer or authorized distributors?
All NZX22B,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 NZX22B,133 meets industry standards.
7.What is the process for return or replacement of NZX22B,133?
All NZX22B,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX22B,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 NZX22B,133 part is unused and in its original packaging.
Return procedure for NZX22B,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZX22B,133 Tags
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