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Nexperia USA Inc. NZX16A,133
- Part No.:
- NZX16A,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
NZX16A,133.pdf
- Description:
- DIODE ZENER 15.6V 500MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:5,132
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Product details
Overview
NZX16A,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 16 V nominal working voltage (15.3–15.9 V range), with 45 Ω typical differential resistance at IZ = 5 mA, ≤0.05 µA reverse leakage at VR = 11.2 V, and 500 mW total power dissipation - used in low-power analog reference circuits and overvoltage clamping in industrial sensor interfaces.
For engineers reviewing the NZX16A,133 datasheet, NZX16A,133 pinout, NZX16A,133 application, or NZX16A,133 equivalent, this part supports stable 16 V Zener regulation under 5 mA test current, features low thermal resistance (380 K/W junction-to-ambient), and serves as a cost-effective, axial-leaded discrete solution for non-automotive voltage stabilization where hermetic sealing and low leakage are critical.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its terminals. Its 16 V nominal Zener voltage is specified at IZ = 5 mA, with tight tolerance (±0.6 V), low temperature coefficient (typical ±2.5 mV/K near 16 V), and minimal dynamic impedance (45 Ω) ensuring predictable regulation under varying load conditions.
The SOD27 package provides hermetic glass sealing for long-term stability and moisture resistance, while axial leads enable through-hole mounting on FR4 PCBs. Thermal performance is characterized by Rth(j-a) = 380 K/W (free air) and Rth(j-t) = 300 K/W, supporting reliable operation up to Tj = 175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.3 V min to 15.9 V max at IZ = 5 mA - defines precise regulation window for 16 V nominal reference |
| Differential Resistance (rdif) | 45 Ω typical at IZ = 5 mA - ensures low output impedance and minimal voltage shift under load variation |
| Reverse Leakage Current (IR) | ≤0.05 µA at VR = 11.2 V - enables ultra-low standby power in battery-backed reference circuits |
| Total Power Dissipation (Ptot) | 500 mW at Ttp ≤ 25 °C - supports continuous regulation in ambient temperatures up to +70 °C with derating |
| Forward Voltage (VF) | ≤1.5 V at IF = 200 mA - allows safe forward conduction during transient polarity reversals |
| Junction Temperature (Tj) | −65 °C to +175 °C - guarantees operation in extended industrial environments including high-temperature enclosures |
Pinout & Package
Package: SOD27 (SC-40), hermetically sealed axial-leaded glass package with cathode band marking; lead length ≤8 mm; mounted on FR4 PCB without metallization pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; marked by black band; reverse-biased during Zener operation |
| 2 | Anode | Connected to ground or lower-potential rail; completes bias path for controlled breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic Glass Sealing | Prevents moisture ingress and parameter drift over time, critical for long-life industrial reference designs |
| Low Differential Resistance | 45 Ω typical ensures <±10 mV output shift per 0.5 mA load change - improves regulation accuracy in feedback paths |
| Ultra-Low Reverse Leakage | ≤0.05 µA at 11.2 V enables use in micropower sensor biasing and battery-monitoring circuits |
| Stable Temperature Coefficient | Typical ±2.5 mV/K near 16 V minimizes drift across −40 °C to +85 °C operating range |
Applications
| Industrial Sensor Reference | Power Supply Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 16 V reference for analog front-end amplifiers in pressure/temperature transmitters. IC Role / Device Role / Timing Role: Zener diode acts as passive voltage reference source for ADC biasing and op-amp gain-setting networks. Use Value: Tight 15.3–15.9 V tolerance and low rdif ensure <0.5% reference error across 0–70 °C ambient range. |
Use Scenario: Clamping transient surges on 12 V DC input rails in programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: Zener diode conducts during overvoltage events (>16 V), diverting excess energy to ground. Use Value: 500 mW Ptot rating supports 100 ms surge handling at 300 mA peak current without degradation. |
| Low-Power Battery Monitor | Microcontroller Reset Circuit |
Use Scenario: Monitoring Li-ion cell voltage via resistive divider into MCU ADC, using Zener as precision scaling reference. IC Role / Device Role / Timing Role: Provides known reference point for ratio-metric measurement of battery voltage under variable load. Use Value: ≤0.05 µA leakage prevents measurable discharge in multi-year battery-powered IoT nodes. |
Use Scenario: Generating clean reset signal for 3.3 V microcontrollers when main supply exceeds safe threshold. IC Role / Device Role / Timing Role: Zener-based comparator input reference ensures accurate brown-out detection at 16 V system rail. Use Value: Hermetic SOD27 construction prevents parameter shift after 10+ years of field deployment in embedded systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C16-TR | Plastic DO-35 package; 16 V ±5%; rdif = 50 Ω; IR = 0.1 µA at 12.2 V | Lower cost but higher leakage and non-hermetic - unsuitable for high-reliability/harsh-environment use | Select when cost sensitivity outweighs long-term stability requirements and environmental exposure is minimal |
| 1N4744A | DO-41 package; 15 V ±5%; rdif = 16 Ω; Ptot = 1 W; IR = 5 µA at 12 V | Higher power rating but significantly higher leakage - better for high-current shunt regulation, not precision reference | Select only when >500 mW dissipation is required and leakage tolerance >100× higher than NZX16A,133 is acceptable |
Compared with BZX55C16-TR and 1N4744A, NZX16A,133 delivers superior long-term stability via hermetic sealing, lowest leakage for micropower designs, and tighter voltage tolerance - making it optimal for precision analog references where reliability and low drift are prioritized over raw power handling or unit cost.
Availability
NZX16A,133 is available at Aetrix Electronics and suitable for industrial sensor reference, power supply overvoltage clamp, and low-power battery monitor applications requiring stable component supply with guaranteed traceability and lifecycle continuity.
Supply support for NZX16A,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, consumer, and communications markets.
The NZX series targets general-purpose Zener regulation with hermetic stability, optimized for precision voltage reference and clamping in non-automotive industrial and instrumentation applications.
FAQ
What is the maximum continuous Zener current for NZX16A,133 at 25 °C ambient?
The device supports up to 31.25 mA continuous Zener current at 25 °C ambient, calculated from Ptot = 500 mW and VZ ≈ 16 V (500 mW ÷ 16 V). Derating is required above 25 °C per the Rth(j-a) = 380 K/W thermal resistance specification.
How does the SOD27 package affect PCB layout and thermal design?
The SOD27's axial leads require through-hole mounting with ≤8 mm lead length; no copper pour is recommended beneath the glass body. Thermal performance relies on natural convection - minimum 2 mm clearance around the diode and avoidance of adjacent heat sources are essential to maintain Rth(j-a) ≤ 380 K/W.
Can NZX16A,133 be used in series or parallel configurations for higher voltage or current capability?
Series connection is viable for higher reference voltages (e.g., two NZX16A,133 yield ~32 V), but matching VZ tolerances is critical. Parallel use is not recommended due to mismatched rdif causing current imbalance and potential thermal runaway - discrete current-sharing resistors would be required.
Is NZX16A,133 qualified for automotive applications?
No. The NZX16A,133 is explicitly designated as non-automotive qualified per Nexperia's legal disclaimers. It lacks AEC-Q200 stress testing, automotive-grade screening, and temperature range validation beyond −55 °C to +175 °C junction limits - use only in industrial, commercial, or consumer equipment.
NZX16A,133 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- NZX
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 15.6 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 45 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11.2 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
NZX16A,133 FAQ
1.How can I place an order for NZX16A,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZX16A,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 NZX16A,133 reliable?
The price and inventory of NZX16A,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX16A,133 is usually 5 days.
3.What payment methods are accepted for NZX16A,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX16A,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZX16A,133?
NZX16A,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZX16A,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 NZX16A,133?
For technical support, including NZX16A,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX16A,133 requirements.
6.How does Aetrix verify that NZX16A,133 is sourced from the original manufacturer or authorized distributors?
All NZX16A,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 NZX16A,133 meets industry standards.
7.What is the process for return or replacement of NZX16A,133?
All NZX16A,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX16A,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 NZX16A,133 part is unused and in its original packaging.
Return procedure for NZX16A,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZX16A,133 Tags
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