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Nexperia USA Inc. NZX3V6A,133
- Part No.:
- NZX3V6A,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
NZX3V6A,133.pdf
- Description:
- DIODE ZENER 3.5V 500MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:9,791
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Product details
Overview
NZX3V6A,133 from Nexperia is a single Zener diode in a hermetically sealed SOD27 (SC-40) axial glass package, designed for precision voltage regulation at 3.6 V nominal Zener voltage with ±5% tolerance (3.4–3.8 V), 100 Ω typical differential resistance at IZ = 5 mA, and ≤5 μA reverse leakage current. It delivers stable reference performance in low-power analog circuits, power supply feedback paths, and overvoltage protection nodes.
For engineers reviewing the NZX3V6A,133 datasheet, NZX3V6A,133 pinout, NZX3V6A,133 application, or NZX3V6A,133 equivalent, key selection criteria include its 3.6 V Zener voltage tolerance, 500 mW total power dissipation limit, low thermal resistance (Rth(j-a) = 380 K/W), cathode-marked axial lead configuration, and suitability for non-automotive general-purpose regulation where hermetic reliability and low leakage are required.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified working voltage of 3.6 V at 5 mA test current, exhibiting a temperature coefficient near zero in the 3.3–4.7 V range (per Fig 3), enabling stable reference behavior across ambient temperatures from −55 °C to +175 °C. Its low differential resistance (≤100 Ω) ensures minimal output voltage variation under load changes.
The device uses a glass-encapsulated axial construction with no internal passivation layers beyond standard semiconductor junction design; thermal performance is characterized on FR4 PCB with 8 mm lead length, and forward voltage is limited to 1.5 V at 200 mA - relevant only for accidental forward conduction scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.4–3.8 V at IZ = 5 mA - defines precise regulation point for feedback or clamping circuits |
| Differential Resistance (rdif) | ≤100 Ω at IZ = 5 mA - ensures <10 mV output shift per 1 mA load change |
| Reverse Leakage Current (IR) | ≤5 μA at VR = 1 V - minimizes standby power loss in high-impedance bias networks |
| Total Power Dissipation (Ptot) | 500 mW at Ttp ≤25 °C - sets maximum continuous DC or pulsed power handling capability |
| Junction Temperature (Tj) | −65 to +175 °C - enables operation in extended industrial and under-hood environments |
| Thermal Resistance (Rth(j-a)) | 380 K/W in free air - determines self-heating rise (~190 °C/W at 500 mW) without heatsinking |
Pinout & Package
Package: SOD27 (SC-40), hermetically sealed axial glass package with 2 leads; overall length 25.4 mm min, diameter 1.85 mm max; cathode identified by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated output node in shunt regulator; accepts reverse bias for Zener conduction |
| 2 (non-banded end) | Anode | Connected to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass sealing | Prevents moisture ingress and long-term parameter drift in humid or corrosive environments |
| Low differential resistance | ≤100 Ω ensures tight voltage regulation under varying load currents in feedback loops |
| Low leakage current | ≤5 μA at 1 V reverse bias reduces quiescent current in battery-powered reference circuits |
| Wide operating temperature range | −55 °C to +175 °C supports deployment in industrial controls and power converters without derating |
Applications
| Power Supply Feedback | Overvoltage Clamp |
|---|---|
Use Scenario: Used in TL431-based adjustable linear regulators to set output voltage via resistor divider. IC Role / Device Role / Timing Role: Provides stable 3.6 V reference for error amplifier input; replaces higher-cost IC references where ±5% tolerance is acceptable. Use Value: Enables cost-effective, discrete voltage setting with predictable temperature coefficient near zero at 3.6 V. |
Use Scenario: Placed across microcontroller I/O pins to clamp ESD transients or supply spikes. IC Role / Device Role / Timing Role: Acts as bidirectional transient suppressor - Zener conducts above 3.6 V, forward diode conducts below −0.7 V. Use Value: Limits voltage excursions to safe levels without adding series resistance that degrades signal integrity. |
| Reference Voltage Source | Current Limiter Bias |
Use Scenario: Supplies bias voltage to op-amp comparators in battery monitoring circuits. IC Role / Device Role / Timing Role: Delivers low-drift, low-noise reference for threshold detection with minimal quiescent current draw. Use Value: Achieves <5 μA leakage, extending battery life in always-on sensing applications. |
Use Scenario: Sets gate drive threshold for discrete MOSFET current-limiting stages in LED drivers. IC Role / Device Role / Timing Role: Defines turn-on voltage for series pass transistor; stabilizes trip point against supply variation. Use Value: Maintains consistent current limit across temperature due to matched TC with silicon devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55-C3V6 (ON Semiconductor) | Same 3.6 V nominal, ±5% tolerance, but rated at 500 mW in DO-35 package; higher rdif (≤150 Ω) | DO-35 has larger footprint and higher Rth(j-a) (450 K/W); less suitable for space-constrained PCBs | Select when legacy DO-35 footprint compatibility is required and thermal margin allows higher resistance |
| MMBZ5227B (Diodes Inc.) | SOT-23 surface-mount package; same 3.6 V rating but lower Ptot (225 mW) and higher IR (≤10 μA) | Enables automated assembly and smaller board area, but requires derating above 125 °C ambient | Select for high-volume SMT production where board space is critical and power demand stays below 150 mW |
Compared with BZX55-C3V6 and MMBZ5227B, NZX3V6A,133 offers superior thermal performance (380 K/W vs. 450/625 K/W), lower leakage, and hermetic reliability - making it preferred for high-reliability through-hole designs operating near thermal limits.
Availability
NZX3V6A,133 is available at Aetrix Electronics and suitable for power supply feedback, overvoltage clamping, reference voltage sourcing, and current limiter bias applications requiring stable component supply and long-term parameter stability.
Supply support for NZX3V6A,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 focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.
The NZX series targets general-purpose Zener regulation in non-automotive industrial, consumer, and computing systems where hermetic sealing, wide temperature operation, and low leakage are prioritized over surface-mount form factor.
FAQ
What is the maximum continuous reverse current this Zener can handle at 3.6 V?
The NZX3V6A,133 is rated for up to 250 mA forward current, but in Zener operation, its maximum continuous reverse current is determined by power dissipation: at 3.6 V, IZ(max) = 500 mW / 3.6 V ≈ 139 mA at Ttp ≤25 °C. Derating is required above 25 °C ambient per the 380 K/W thermal resistance.
Does this part have automotive qualification?
No. The NZX3V6A,133 is explicitly designated as non-automotive qualified in Nexperia's legal disclaimers. It is not tested or warranted for AEC-Q101 stress requirements, nor validated for automotive temperature cycling, humidity, or vibration profiles.
How is polarity identified on the NZX3V6A,133 package?
Polarity is marked by a black band on the glass body, indicating the cathode terminal (Pin 1). The unmarked end is the anode (Pin 2). This marking aligns with standard diode convention and matches the simplified outline in Nexperia's data sheet Figure 2.
Can this Zener be used in AC signal clipping applications?
Yes - its symmetrical conduction behavior (3.6 V reverse Zener + ~0.7 V forward drop) enables bidirectional clipping. However, peak repetitive current must stay within 250 mA, and pulse energy must comply with the 300 μs/δ ≤0.02 test condition to avoid thermal runaway.
NZX3V6A,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):
- 3.5 V
- Tolerance:
- ±3%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1 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
NZX3V6A,133 FAQ
1.How can I place an order for NZX3V6A,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZX3V6A,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 NZX3V6A,133 reliable?
The price and inventory of NZX3V6A,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX3V6A,133 is usually 5 days.
3.What payment methods are accepted for NZX3V6A,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX3V6A,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZX3V6A,133?
NZX3V6A,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZX3V6A,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 NZX3V6A,133?
For technical support, including NZX3V6A,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX3V6A,133 requirements.
6.How does Aetrix verify that NZX3V6A,133 is sourced from the original manufacturer or authorized distributors?
All NZX3V6A,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 NZX3V6A,133 meets industry standards.
7.What is the process for return or replacement of NZX3V6A,133?
All NZX3V6A,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX3V6A,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 NZX3V6A,133 part is unused and in its original packaging.
Return procedure for NZX3V6A,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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