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Nexperia USA Inc. NZX36X,133
- Part No.:
- NZX36X,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
NZX36X,133.pdf
- Description:
- DIODE ZENER 36.27V 500MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:9,879
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Product details
Overview
NZX36X,133 from Nexperia is a single Zener diode in a hermetically sealed SOD27 (SC-40) glass package, designed for precision voltage regulation at 36 V nominal Zener voltage with ±3% tolerance (35.36–37.19 V), 140 Ω differential resistance at IZ = 2 mA, and ≤0.05 µA reverse leakage current. It delivers stable reference performance in low-power analog circuits, power supply feedback loops, and overvoltage protection stages.
For engineers reviewing the NZX36X,133 datasheet, NZX36X,133 pinout, NZX36X,133 application, or NZX36X,133 equivalent, key selection criteria include verified Zener voltage accuracy at 2 mA test current, thermal resistance (Rth(j-a) = 380 K/W), axial-leaded SOD27 mechanical compatibility, and low-leakage operation in temperature-stable reference designs.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 36 V at IZ = 2 mA, exhibiting a temperature coefficient optimized for mid-voltage regulation (±2 mV/K typical near 36 V). Its hermetic glass package ensures long-term stability and minimal parameter drift under humidity or thermal cycling stress.
The device complies with IEC 60134 absolute maximum ratings: Ptot ≤ 500 mW at Ttp ≤ 25 °C, junction temperature up to 175 °C, and ambient operating range from −55 °C to +175 °C - enabling use in industrial control and automotive-adjacent non-safety-critical environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 35.36–37.19 V at IZ = 2 mA - defines precise regulation threshold for 36 V rail clamping or reference generation |
| Differential Resistance (rdif) | 140 Ω max at IZ = 2 mA - determines output impedance and load regulation sensitivity in shunt regulator topologies |
| Reverse Leakage Current (IR) | ≤0.05 µA at VR = 25.2 V - ensures minimal quiescent current draw in battery-backed or ultra-low-power monitoring circuits |
| Total Power Dissipation (Ptot) | 500 mW at Ttp ≤ 25 °C - sets maximum continuous power handling on FR4 PCB without heatsinking |
| Thermal Resistance (Rth(j-a)) | 380 K/W in free air - governs junction temperature rise under steady-state bias, critical for reliability in enclosed enclosures |
| Forward Voltage (VF) | ≤1.5 V at IF = 200 mA - supports bidirectional transient suppression when used with series resistor in clamp configurations |
Pinout & Package
Package: SOD27 (SC-40), hermetically sealed axial-leaded glass package with 25.4 mm minimum lead length and 4.25 mm maximum body diameter. Cathode identified by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node in shunt configuration; polarity-sensitive for correct breakdown conduction |
| 2 | Anode | Connected to ground or lower-potential reference; completes reverse-bias path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and parameter shift over 15+ year operational life in humid industrial environments |
| Low differential resistance | 140 Ω enables <1% output voltage deviation across ±10% load current variation in simple shunt regulators |
| Ultra-low leakage current | ≤0.05 µA minimizes standby power loss in always-on sensor interface or backup reference circuits |
| Wide operating temperature range | −55 °C to +175 °C supports deployment in engine bay electronics, motor drives, and high-temperature process controllers |
Applications
| Power Supply Feedback | Overvoltage Protection |
|---|---|
Use Scenario: Stabilizing output voltage in isolated flyback or buck-derived auxiliary supplies. IC Role / Device Role / Timing Role: Zener acts as precision voltage reference for optocoupler feedback network. Use Value: Tight 36 V tolerance and low rdif ensure ±1.5% output regulation accuracy across line/load variations. |
Use Scenario: Clamping transient surges on 24 V DC bus lines in PLC I/O modules. IC Role / Device Role / Timing Role: Shunt limiter triggered during >36 V overvoltage events. Use Value: Hermetic construction sustains repeated surge energy absorption without parameter degradation. |
| Reference Voltage Source | Signal Level Translation |
Use Scenario: Generating stable 36 V reference for ADC input scaling in high-voltage data acquisition systems. IC Role / Device Role / Timing Role: Passive voltage reference for ratiometric measurement front-ends. Use Value: Low leakage (<0.05 µA) prevents loading error on high-impedance divider networks feeding precision op-amps. |
Use Scenario: Biasing level-shift networks between 3.3 V microcontrollers and 36 V fieldbus transceivers. IC Role / Device Role / Timing Role: Clamp diode defining upper logic threshold in open-collector interface stages. Use Value: Predictable forward voltage (≤1.5 V) and sharp reverse knee enable clean digital signal edge definition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55-C36 | Plastic DO-35 package; 5% VZ tolerance (34.2–37.8 V); rdif = 150 Ω max at 5 mA | Lower cost but reduced long-term stability and higher leakage (≤5 µA at 28.8 V) | Select for cost-sensitive consumer-grade power rails where hermeticity and sub-µA leakage are not required |
| 1N4738A | DO-41 package; 5% VZ tolerance (34.2–37.8 V); Ptot = 1 W; rdif = 100 Ω max at 25 mA | Higher power rating but larger footprint and less stable at low currents (<5 mA) | Select when >500 mW dissipation or higher test current (25 mA) is needed for improved regulation linearity |
Compared with BZX55-C36 and 1N4738A, NZX36X,133 offers superior long-term voltage stability via hermetic sealing, tighter 3% VZ tolerance at low 2 mA test current, and sub-0.1 µA leakage - making it optimal for precision reference and low-power industrial sensing where parameter drift must be minimized.
Availability
NZX36X,133 is available at Aetrix Electronics and suitable for industrial power supply feedback, overvoltage protection circuits, precision reference voltage generation, and signal level translation requiring stable component supply and traceable sourcing.
Supply support for NZX36X,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, miniaturization, and robustness for industrial, automotive, and computing applications.
The NZX series targets general-purpose Zener regulation with hermetic reliability and tight voltage tolerances across 2.1–36 V, specifically engineered for long-life analog reference and protection functions in harsh environments.
FAQ
What is the Zener test current for NZX36X,133 and why does it matter?
The specified Zener voltage (35.36–37.19 V) is measured at IZ = 2 mA, which is lower than typical 5 mA tests used for many Zeners. This enables accurate characterization in low-current reference designs and improves regulation stability when driving high-impedance loads like op-amp inputs or comparator thresholds.
How does the SOD27 hermetic package improve reliability versus plastic alternatives?
The SOD27 glass-metal seal prevents moisture diffusion and oxidation at the PN junction, eliminating parameter drift caused by humidity-induced surface conduction. This extends functional lifetime beyond 15 years in humid or thermally cycled environments where plastic-packaged Zeners may exhibit VZ shift or increased leakage.
Can NZX36X,133 be used in series or parallel configurations?
Series connection is acceptable for higher voltage references (e.g., two 36 V units for ~72 V), provided matched units are selected to balance current. Parallel use is not recommended due to negative temperature coefficient interaction and unequal current sharing that risks thermal runaway without individual ballast resistors.
What is the maximum allowable forward current and its practical implication?
The absolute maximum forward current is 250 mA, with forward voltage ≤1.5 V at 200 mA. This allows safe use in bidirectional transient suppressor configurations (e.g., with series resistor) where the diode conducts forward during negative surges, adding robustness beyond pure Zener clamping.
NZX36X,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):
- 36.27 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 140 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 25.2 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
NZX36X,133 FAQ
1.How can I place an order for NZX36X,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZX36X,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 NZX36X,133 reliable?
The price and inventory of NZX36X,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX36X,133 is usually 5 days.
3.What payment methods are accepted for NZX36X,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX36X,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZX36X,133?
NZX36X,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZX36X,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 NZX36X,133?
For technical support, including NZX36X,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX36X,133 requirements.
6.How does Aetrix verify that NZX36X,133 is sourced from the original manufacturer or authorized distributors?
All NZX36X,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 NZX36X,133 meets industry standards.
7.What is the process for return or replacement of NZX36X,133?
All NZX36X,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX36X,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 NZX36X,133 part is unused and in its original packaging.
Return procedure for NZX36X,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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