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Nexperia USA Inc. NZX16C,133
- Part No.:
- NZX16C,133
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
NZX16C,133.pdf
- Description:
- DIODE ZENER 16.7V 500MW ALF2
- Quantity:
- Payment:
- Shipping:
Inventory:9,976
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Product details
Overview
NZX16C,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 16 V at 5 mA, with differential resistance ≤45 Ω, reverse current ≤0.05 μA at 11.2 V, and total power dissipation up to 500 mW - suitable for stable biasing in sensor signal conditioning and power supply feedback loops.
For engineers reviewing the NZX16C,133 datasheet, NZX16C,133 pinout, NZX16C,133 application, or NZX16C,133 equivalent, key selection criteria include its 16 V ±5% working voltage tolerance, low thermal drift (typical temperature coefficient near zero crossing), axial-leaded SOD27 mechanical form factor, and compliance with IEC 60134 absolute maximum ratings for industrial ambient operation (−55 °C to +175 °C).
Technical Context
This device operates as a two-terminal voltage reference, leveraging avalanche breakdown in silicon to maintain stable reverse-bias voltage across varying load currents. Its Zener voltage is specified at IZ = 5 mA, with tight min/max limits (15.3 V to 15.9 V) and low differential resistance ensuring minimal output variation under dynamic current conditions.
The SOD27 package provides hermetic sealing for long-term stability and moisture resistance, while its axial lead configuration supports through-hole mounting on FR4 PCBs without thermal pads. Thermal resistance from junction to ambient is 380 K/W in free air, enabling reliable operation up to 175 °C junction temperature under defined derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.3 V to 15.9 V at IZ = 5 mA - defines precise regulation point for feedback or reference use |
| Differential Resistance (rdif) | ≤45 Ω - ensures <15 mV output shift per 0.3 mA current change, critical for low-noise references |
| Reverse Current (IR) | ≤0.05 μA at VR = 11.2 V - guarantees negligible leakage in high-impedance bias networks |
| Total Power Dissipation (Ptot) | 500 mW at Ttp ≤25 °C - supports continuous operation in compact layouts with adequate airflow |
| Junction Temperature (Tj) | −65 °C to +175 °C - enables deployment in extended-temperature industrial and automotive-adjacent environments |
| Forward Voltage (VF) | ≤1.5 V at IF = 200 mA - allows use as low-drop rectifier or clamp in dual-role designs |
Pinout & Package
The NZX16C,133 uses a 2-pin axial-leaded SOD27 (SC-40) hermetically sealed glass package. The cathode is marked by a colored band on the glass body; leads are tinned copper alloy for solderability and mechanical robustness.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (banded end) | Cathode | Connected to regulated output node; accepts reverse-bias voltage for Zener conduction |
| 2 (unmarked end) | Anode | Connected to circuit ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass encapsulation | Prevents moisture ingress and parameter drift over decades, critical for metrology-grade references |
| Low differential resistance | ≤45 Ω minimizes output impedance, improving load regulation in precision op-amp feedback paths |
| Ultra-low reverse leakage | ≤0.05 μA at 11.2 V avoids loading high-Z sensor outputs or RC timing networks |
| Stable temperature coefficient | Near-zero TC around 16 V enables stable reference performance across −40 °C to +85 °C ambient |
Applications
| Power Supply Feedback | Sensor Bias Reference |
|---|---|
|
Use Scenario: Regulating output voltage in isolated flyback or buck-derived auxiliary supplies. IC Role / Device Role / Timing Role: Zener diode serves as primary voltage reference for optocoupler-based feedback loop. Use Value: Tight 15.3–15.9 V tolerance and low rdif ensure ±1% output accuracy under line/load transients. |
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) or strain gauges. IC Role / Device Role / Timing Role: Acts as low-drift, low-noise voltage source for ratiometric measurement bridges. Use Value: Sub-μA leakage prevents bridge imbalance; hermetic seal maintains calibration integrity over 10+ years. |
| Overvoltage Clamp | Analog Signal Level Shifting |
|
Use Scenario: Protecting ADC inputs or microcontroller GPIO pins from transient overvoltage events. IC Role / Device Role / Timing Role: Two-terminal shunt clamp activated above 16 V threshold. Use Value: 500 mW rating sustains 100 ms surges up to 1 A; fast response (<10 ns) limits voltage overshoot. |
Use Scenario: Shifting DC offset of AC-coupled audio or instrumentation signals into ADC input range. IC Role / Device Role / Timing Role: Provides fixed 16 V reference for op-amp summing junction bias. Use Value: Low noise and stable VZ prevent baseline wander; axial leads simplify prototyping on breadboards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55-C16 (ON Semiconductor) | Same 16 V nominal, but TO-92 plastic package; rdif = 50 Ω; IR = 0.1 μA at 11.2 V | Lower cost, but reduced long-term stability and moisture resistance vs. hermetic glass | Select when cost sensitivity outweighs 10+ year calibration retention requirements |
| 1N4744A (STMicroelectronics) | 14 V nominal (not 16 V); DO-41 package; Ptot = 1 W; rdif = 16 Ω | Higher power handling, but requires voltage scaling network to match 16 V function | Choose only if system needs >500 mW clamping and can accommodate external resistor divider |
Compared with BZX55-C16 and 1N4744A, NZX16C,133 offers superior long-term voltage stability due to hermetic sealing, tighter VZ tolerance, and lower leakage - making it preferred for metrology, sensor excitation, and safety-critical regulation where parameter drift must be minimized.
Availability
NZX16C,133 is available at Aetrix Electronics and suitable for precision voltage reference, analog signal conditioning, and overvoltage protection applications requiring stable component supply and traceable sourcing.
Supply support for NZX16C,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 cost-sensitive yet reliability-demanding applications, emphasizing hermetic stability, tight voltage tolerances, and wide temperature operation - distinct from plastic-packaged alternatives.
FAQ
What is the exact Zener voltage range for NZX16C,133 at 5 mA?
The confirmed Zener voltage range is 15.3 V minimum to 15.9 V maximum at IZ = 5 mA and Tj = 25 °C, per Table 8 of the official Nexperia datasheet Rev. 4 (2011). This 600 mV span reflects the "C" grade tolerance band for the NZX16x series.
Can NZX16C,133 be used in surface-mount designs?
No - NZX16C,133 uses an axial-leaded SOD27 (SC-40) glass package intended exclusively for through-hole mounting. It lacks solder pads or terminations compatible with reflow or wave soldering processes. For SMT equivalents, consider Nexperia's BZX384-C16 or MMBZ5245B.
What is the maximum allowable forward current?
The absolute maximum forward current is 250 mA, per Table 5 (Limiting Values). At IF = 200 mA, forward voltage is guaranteed ≤1.5 V. Exceeding 250 mA risks permanent damage due to bond wire fusing, even briefly.
How does thermal resistance affect derating at elevated ambient temperatures?
With Rth(j-a) = 380 K/W in free air, power must be linearly derated above 25 °C ambient: Pmax = 500 mW × (1 − (Tamb − 25)/150). At 75 °C ambient, max dissipation drops to 333 mW to keep Tj ≤175 °C.
NZX16C,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):
- 16.7 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
NZX16C,133 FAQ
1.How can I place an order for NZX16C,133 through Aetrix?
Please submit a Request for Quotation (RFQ) for NZX16C,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 NZX16C,133 reliable?
The price and inventory of NZX16C,133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZX16C,133 is usually 5 days.
3.What payment methods are accepted for NZX16C,133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZX16C,133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZX16C,133?
NZX16C,133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZX16C,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 NZX16C,133?
For technical support, including NZX16C,133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZX16C,133 requirements.
6.How does Aetrix verify that NZX16C,133 is sourced from the original manufacturer or authorized distributors?
All NZX16C,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 NZX16C,133 meets industry standards.
7.What is the process for return or replacement of NZX16C,133?
All NZX16C,133 units undergo pre-shipment inspection (PSI). If there is an issue with NZX16C,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 NZX16C,133 part is unused and in its original packaging.
Return procedure for NZX16C,133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZX16C,133 Tags
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