Nexperia USA Inc. NZX5V6B,133
- Part No.:
- NZX5V6B,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
NZX5V6B,133.pdf
- Description:
- DIODE ZENER 5.45V 500MW ALF2
- Quantity:
- Payment:

- Shipping:

Inventory:8,715
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Product details
Overview
NZX5V6B,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 5.6 V nominal Zener voltage with ±5% tolerance, 40 Ω differential resistance at IZ = 5 mA, and ≤1 µA reverse leakage current. It operates across −55 °C to +175 °C ambient temperature and supports general-purpose regulation in low-power analog circuits.
For engineers reviewing the NZX5V6B,133 datasheet, NZX5V6B,133 pinout, NZX5V6B,133 application, or NZX5V6B,133 equivalent, this device serves as a stable, low-leakage, low-impedance voltage reference for power supply feedback, overvoltage clamping, and signal conditioning where thermal stability and long-term reliability in axial-leaded glass packages are required.
Technical Context
This Zener diode employs a planar silicon junction optimized for tight voltage tolerance and low dynamic impedance. Its 5.6 V nominal Zener voltage falls in the region of near-zero temperature coefficient (≈0 mV/K at IZ ≈ 5 mA), minimizing drift over temperature in reference applications.
The SOD27 package provides hermetic sealing and axial leads suitable for through-hole mounting on FR4 PCBs. Thermal resistance from junction to ambient is 380 K/W in free air, enabling reliable operation up to 175 °C junction temperature under Ptot ≤ 500 mW.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.3 V to 5.6 V at IZ = 5 mA - defines precise regulation point with minimal temperature-induced shift |
| Differential Resistance (rdif) | 40 Ω max at IZ = 5 mA - ensures stable output under small-signal load variations |
| Reverse Leakage Current (IR) | ≤1 µA at VR = 2 V - enables low-power standby operation without significant quiescent loss |
| Total Power Dissipation (Ptot) | 500 mW at Ttp ≤ 25 °C - supports continuous DC regulation in compact layouts without forced cooling |
| Junction Temperature Range (Tj) | −65 °C to +175 °C - allows deployment in industrial, automotive under-hood, and high-reliability environments |
| Forward Voltage (VF) | ≤1.5 V at IF = 200 mA - permits use as a low-drop rectifier or clamp in bidirectional protection schemes |
Pinout & Package
The NZX5V6B,133 uses a two-terminal axial-leaded SOD27 (SC-40) hermetically sealed glass package. The cathode is marked by a colored band on the glass body; leads are uncoated tinned copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated output node; accepts reverse-bias voltage for Zener breakdown conduction |
| 2 (unbanded end) | Anode | Connected to ground or lower-potential rail; completes bias path during regulation or clamping |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass encapsulation | Prevents moisture ingress and long-term parameter drift in humid or harsh environments |
| Low differential resistance (40 Ω) | Minimizes output voltage variation under changing load currents in feedback loops |
| Near-zero temperature coefficient | Stabilizes reference voltage across −40 °C to +125 °C operating range without external compensation |
| High surge robustness (tp ≤ 300 µs) | Withstands transient overvoltages in ESD-prone interfaces and power-line surges |
Applications
| Power Supply Feedback | Overvoltage Clamp |
|---|---|
|
Use Scenario: Regulating output voltage in linear regulators or switching converter feedback networks. IC Role / Device Role / Timing Role: Zener diode acts as precision voltage reference in error amplifier feedback path. Use Value: Tight 5.6 V tolerance and low rdif ensure <±1% output accuracy under line/load transients. |
Use Scenario: Protecting microcontroller I/O pins from voltage spikes exceeding 5.6 V. IC Role / Device Role / Timing Role: Cathode tied to protected node; anode grounded to shunt excess energy. Use Value: ≤1 µA leakage preserves high-impedance input integrity; 500 mW rating handles short-duration surges. |
| Reference Voltage Source | Signal Level Shifting |
|
Use Scenario: Providing stable 5.6 V reference for ADCs, comparators, or sensor excitation circuits. IC Role / Device Role / Timing Role: Zener supplies fixed bias point independent of supply rail fluctuations. Use Value: Near-zero TC and 40 Ω rdif reduce measurement error drift to <0.5 mV/°C over full temperature range. |
Use Scenario: Biasing op-amp inputs or translating logic levels between 3.3 V and 5 V domains. IC Role / Device Role / Timing Role: Used in series with resistor to generate offset voltage or clamp swing amplitude. Use Value: Low forward voltage (≤1.5 V) and sharp reverse knee enable clean level translation without distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55-C5V6 (ON Semiconductor) | Same 5.6 V nominal, ±5% tolerance, but higher rdif (60 Ω) and higher IR (≤5 µA at 2 V) | Suitable for cost-sensitive non-critical regulation; less stable under varying load | Select when budget constraints outweigh need for ultra-low impedance or leakage |
| 1N4734A (Vishay) | 5.6 V nominal, ±5%, but TO-204AA (DO-41) metal-glass package; Ptot = 1 W, rdif = 5 Ω | Better thermal performance and lower impedance, but larger footprint and higher cost | Select when higher power handling or tighter regulation is required and board space permits |
Compared with BZX55-C5V6 and 1N4734A, NZX5V6B,133 offers superior leakage control and hermetic reliability in a compact axial package-ideal for space-constrained, long-life industrial designs where parameter stability outweighs raw power capacity.
Availability
NZX5V6B,133 is available at Aetrix Electronics and suitable for industrial power supplies, sensor interface modules, and embedded control systems requiring stable component supply with consistent parametric performance across production batches.
Supply support for NZX5V6B,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, high-reliability discrete, logic, and MOSFET solutions with focus on efficiency, miniaturization, and sustainability.
The NZX series targets general-purpose Zener regulation with emphasis on hermetic stability, wide temperature operation, and tight voltage tolerance-designed for industrial, computing, and consumer power management applications.
FAQ
What is the maximum continuous reverse current the NZX5V6B,133 can sustain without degradation?
The device is rated for a maximum total power dissipation of 500 mW at Ttp ≤ 25 °C. At its nominal 5.6 V Zener voltage, this corresponds to a continuous reverse current limit of approximately 89 mA (500 mW ÷ 5.6 V). Derating is required above 25 °C per the 380 K/W thermal resistance specification.
Does the NZX5V6B,133 meet automotive qualification standards?
No. The NZX5V6B,133 is not automotive-qualified. Per Nexperia's legal disclaimers, it is neither tested nor warranted for automotive use, including under-hood or safety-critical systems. For automotive applications, consult Nexperia's AEC-Q101 qualified Zener portfolio.
How is polarity identified on the NZX5V6B,133 package?
The cathode is indicated by a visible color band (typically black or dark stripe) on the glass body. Pin 1 (cathode) is the banded end; Pin 2 (anode) is the unbanded end. This marking aligns with standard diode polarity conventions and is confirmed in the official pinning diagram (Figure 2).
Can NZX5V6B,133 be used in parallel for higher current capability?
No. Zener diodes must not be paralleled without individual ballasting resistors due to mismatched breakdown voltages-even within the same batch. The NZX5V6B,133 has no built-in current-sharing mechanism; unbalanced conduction would cause thermal runaway in one device.
NZX5V6B,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):
- 5.45 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 1 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
NZX5V6B,133 FAQ
1.How can I place an order for NZX5V6B,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZX5V6B,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 NZX5V6B,133 reliable?
The price and inventory of NZX5V6B,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX5V6B,133 is usually 5 days.
3.What payment methods are accepted for NZX5V6B,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX5V6B,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZX5V6B,133?
NZX5V6B,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZX5V6B,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 NZX5V6B,133?
For technical support, including NZX5V6B,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX5V6B,133 requirements.
6.How does Aetrix verify that NZX5V6B,133 is sourced from the original manufacturer or authorized distributors?
All NZX5V6B,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 NZX5V6B,133 meets industry standards.
7.What is the process for return or replacement of NZX5V6B,133?
All NZX5V6B,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX5V6B,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 NZX5V6B,133 part is unused and in its original packaging.
Return procedure for NZX5V6B,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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