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Nexperia USA Inc. NZX5V1A,133
- Part No.:
- NZX5V1A,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
NZX5V1A,133.pdf
- Description:
- DIODE ZENER 4.9V 500MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:29,137
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Product details
Overview
NZX5V1A,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 in low-power analog circuits. It delivers a nominal Zener voltage of 4.8–5.0 V at 5 mA, with differential resistance ≤100 Ω, reverse current ≤2 μA at 2 V, total power dissipation up to 500 mW, and operates across −55 °C to +175 °C ambient temperature - used in power supply feedback loops and sensor biasing networks.
For engineers reviewing the NZX5V1A,133 datasheet, NZX5V1A,133 pinout, NZX5V1A,133 application, or NZX5V1A,133 equivalent, this page provides verified electrical parameters, thermal resistance values (Rth(j-a) = 380 K/W), cathode/anode polarity marking guidance, and real-world use cases in overvoltage clamping and voltage reference design.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled VZ tolerance (±2.5% typical at IZ = 5 mA) and low temperature coefficient (≈−2 mV/K near 5.1 V). Its axial-leaded SOD27 package enables through-hole mounting on FR4 PCBs without thermal pads, supporting stable regulation under transient load conditions.
The device complies with IEC 60134 absolute maximum ratings, including 250 mA forward current limit and 175 °C junction temperature ceiling. Pulse testing uses tp ≤ 300 μs and duty cycle δ ≤ 0.02, ensuring reliable behavior in short-duration surge suppression applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 4.8–5.0 V at IZ = 5 mA - defines stable regulation point for 5 V rail referencing |
| Differential Resistance rdif | ≤100 Ω - ensures minimal output voltage shift under varying load current |
| Reverse Current IR | ≤2 μA at VR = 2 V - guarantees low standby power loss in always-on reference circuits |
| Total Power Dissipation Ptot | 500 mW at Ttp ≤ 25 °C - supports continuous operation in compact, unheatsinked layouts |
| Thermal Resistance Rth(j-a) | 380 K/W in free air - determines junction-to-ambient temperature rise under steady-state bias |
| Junction Temperature Tj | 175 °C maximum - enables deployment in high-temperature industrial environments |
| Forward Voltage VF | 1.5 V at IF = 200 mA - defines conduction threshold when used in bidirectional protection configurations |
Pinout & Package
The NZX5V1A,133 uses a two-terminal axial-leaded SOD27 (SC-40) hermetically sealed glass package. The black band on the body identifies the cathode terminal.
| 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 bias path for breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift in humid or harsh environments |
| Low leakage current | ≤2 μA at 2 V reverse bias - critical for battery-powered reference stability and low-quiescent circuits |
| Tight VZ tolerance | ±2.5% at 5 mA - reduces need for post-production trimming in precision analog designs |
| High-temperature capability | Rated to 175 °C junction temperature - suitable for under-hood automotive modules and industrial motor controls |
| Standard axial lead form factor | SOD27 outline with 25.4 mm lead spacing - compatible with legacy through-hole assembly and manual prototyping |
Applications
| Power Supply Feedback Regulation | Sensor Bias Reference |
|---|---|
Use Scenario: Stabilizing output voltage in linear regulators or switching converter feedback paths. IC Role / Device Role / Timing Role: Zener diode acts as shunt voltage reference, sinking excess current to maintain fixed voltage at error amplifier input. Use Value: Delivers 4.9 V ±0.1 V reference with <100 Ω dynamic impedance, enabling sub-1% output regulation accuracy. |
Use Scenario: Providing stable excitation voltage to resistive sensors (e.g., RTDs, strain gauges). IC Role / Device Role / Timing Role: Functions as low-drift, low-noise DC bias source independent of supply rail fluctuations. Use Value: Maintains <2 μA reverse leakage at 2 V, minimizing self-heating and measurement offset in precision bridge circuits. |
| Overvoltage Clamping | Microcontroller I/O Protection |
Use Scenario: Limiting transient spikes on 5 V logic rails during ESD or inductive switching events. IC Role / Device Role / Timing Role: Shunts surge current above 5.1 V to ground, clamping voltage within safe IC operating range. Use Value: Responds within nanoseconds due to low junction capacitance and handles 250 mA peak forward current per IEC 60134 limits. |
Use Scenario: Protecting GPIO pins against accidental 12 V misconnection or back-drive conditions. IC Role / Device Role / Timing Role: Placed anode-to-pin, cathode-to-5 V rail to clamp negative excursions and prevent latch-up. Use Value: Forward voltage of 1.5 V at 200 mA allows safe conduction of fault current without damaging MCU input structures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55-C5V1 (ON Semiconductor) | VZ = 4.8–5.2 V at 5 mA; rdif ≤ 120 Ω; Ptot = 500 mW; DO-35 package | Higher differential resistance and wider VZ tolerance reduce regulation precision in low-current references | Select when DO-35 footprint compatibility is required and ±4% VZ tolerance is acceptable |
| 1N4733A (Vishay) | VZ = 4.7–5.3 V at 41 mA; rdif ≤ 7 Ω; Ptot = 1 W; DO-41 package | Lower rdif improves load regulation but requires higher test current and larger package | Choose for high-current shunt regulation where thermal margin and dynamic impedance outweigh size constraints |
Compared with BZX55-C5V1 and 1N4733A, NZX5V1A,133 offers tighter VZ tolerance and lower leakage in a compact hermetic package - optimal for space-constrained, low-power, high-stability reference designs rather than high-power clamping.
Availability
NZX5V1A,133 is available at Aetrix Electronics and suitable for power supply feedback regulation, sensor bias referencing, overvoltage clamping, and microcontroller I/O protection requiring stable component supply across industrial, instrumentation, and embedded control programs.
Supply support for NZX5V1A,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 for automotive, industrial, and consumer markets.
The NZX series targets general-purpose Zener regulation with hermetic sealing and wide temperature operation - engineered for robustness in cost-sensitive, high-volume analog signal conditioning and power management applications.
FAQ
What is the Zener voltage tolerance for NZX5V1A,133 at 5 mA?
The NZX5V1A,133 has a nominal Zener voltage of 4.8–5.0 V at IZ = 5 mA, corresponding to a ±2.5% tolerance band around the 4.9 V typical value. This specification is measured under standard conditions (Tj = 25 °C) and confirmed in Table 8 of the Nexperia datasheet Rev. 4.
Can NZX5V1A,133 be used in surface-mount designs?
No - NZX5V1A,133 uses an axial-leaded SOD27 (SC-40) glass package intended for through-hole mounting only. It lacks solder pads or gull-wing leads required for reflow assembly. For SMT equivalents, consider Nexperia's BZX384-B5V1 (SOD-323) or PZM5.1NB (SOT-23), which share similar electrical specs but different footprints.
What is the maximum reverse voltage before breakdown begins?
The maximum reverse voltage before significant Zener conduction starts is defined by the knee voltage, typically ~4.5 V. However, the datasheet specifies that at VR = 2 V, reverse current is limited to ≤2 μA - confirming negligible conduction below the rated VZ range. Full breakdown occurs between 4.8 V and 5.0 V at 5 mA.
How does thermal resistance affect derating at elevated ambient temperatures?
With Rth(j-a) = 380 K/W, a 50 °C ambient rise above 25 °C causes ~19 °C junction temperature increase at full 500 mW dissipation. To stay within the 175 °C Tj limit, power must be linearly derated above 25 °C at 1.32 mW/°C - e.g., max 394 mW at 85 °C ambient.
NZX5V1A,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):
- 4.9 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 2 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
NZX5V1A,133 FAQ
1.How can I place an order for NZX5V1A,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZX5V1A,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 NZX5V1A,133 reliable?
The price and inventory of NZX5V1A,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX5V1A,133 is usually 5 days.
3.What payment methods are accepted for NZX5V1A,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX5V1A,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZX5V1A,133?
NZX5V1A,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZX5V1A,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 NZX5V1A,133?
For technical support, including NZX5V1A,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX5V1A,133 requirements.
6.How does Aetrix verify that NZX5V1A,133 is sourced from the original manufacturer or authorized distributors?
All NZX5V1A,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 NZX5V1A,133 meets industry standards.
7.What is the process for return or replacement of NZX5V1A,133?
All NZX5V1A,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX5V1A,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 NZX5V1A,133 part is unused and in its original packaging.
Return procedure for NZX5V1A,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZX5V1A,133 Tags
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