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Nexperia USA Inc. BZX84W-C16F
- Part No.:
- BZX84W-C16F
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84W-C16F.pdf
- Description:
- DIODE ZENER 16V 275MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:9,886
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Product details
Overview
BZX84W-C16F from Nexperia is a ±5 % tolerance Zener voltage regulator diode with nominal 16 V breakdown voltage, 200 mA maximum forward current, 275 mW total power dissipation, and SOT323 (SC-70) surface-mount package - used for precision voltage reference and overvoltage protection in low-power analog signal conditioning circuits.
For engineers reviewing the BZX84W-C16F datasheet, BZX84W-C16F pinout, BZX84W-C16F application, or BZX84W-C16F equivalent, this page delivers verified Zener voltage, differential resistance, temperature coefficient, reverse leakage, and thermal resistance data directly applicable to voltage-clamp design, power-rail stabilization, and ESD-tolerant biasing in portable and industrial electronics.
Technical Context
This device operates as a two-terminal silicon Zener diode in reverse-biased breakdown mode, delivering stable 16 V regulation at IZ = 5 mA with 200 Ω typical differential resistance and +12.4 mV/K positive temperature coefficient. It exhibits 75 pF junction capacitance at 1 MHz and 0 V reverse bias.
Designed for high-frequency stability, it supports non-repetitive surge currents up to 1.5 A (100 µs pulse) and maintains regulation across −55 °C to +150 °C ambient range. Its SOT323 footprint enables compact placement on FR4 PCBs with standard reflow soldering profiles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.3 V to 17.1 V at IZ = 5 mA - defines regulated output voltage window under nominal bias |
| Differential Resistance (rdif) | 200 Ω max at IZ = 5 mA - determines output impedance and load regulation error |
| Temperature Coefficient (SZ) | +12.4 mV/K at IZ = 5 mA - quantifies voltage drift per degree Celsius rise in junction temperature |
| Reverse Leakage (IR) | 50 nA max at VR = 11.2 V - sets minimum quiescent current in clamp applications |
| Forward Voltage (VF) | 0.9 V max at IF = 10 mA - limits conduction loss during forward-biased operation |
| Total Power Dissipation (Ptot) | 275 mW at Tamb = 25 °C on FR4 PCB - constrains continuous thermal budget in SMT layout |
| Junction-to-Ambient Thermal Resistance (Rth(j-a)) | 455 K/W - determines steady-state temperature rise above ambient per watt dissipated |
Pinout & Package
Package: SOT323 (SC-70), leadless surface-mount plastic package with 3 terminals; dimensions 2.2 mm × 1.35 mm × 0.95 mm (L × W × H); compatible with standard reflow and wave soldering footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A) | Forward-bias terminal; connects to lower-potential node in Zener clamp configuration |
| 2 | Not Connected (n.c.) | Internally unconnected; must remain floating - no PCB trace or pad connection required |
| 3 | Cathode (K) | Reverse-bias terminal; connects to higher-potential node and regulates voltage at cathode-to-anode drop |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective selection for non-critical regulation where 16 V ±0.8 V meets system margin requirements |
| 200 Ω max differential resistance | Minimizes output voltage variation under load current changes up to 10 mA |
| +12.4 mV/K temperature coefficient | Provides predictable, linear voltage increase with temperature - suitable for compensated reference designs |
| 75 pF junction capacitance | Supports stable operation up to ~20 MHz in RF-bias and high-speed clamping applications |
| Non-repetitive peak reverse power of 40 W | Withstands transient surges (e.g., ESD, inductive kickback) without degradation when properly current-limited |
Applications
| Power Supply Rail Clamp | ADC Reference Stabilization |
|---|---|
Use Scenario: Clamping 16 V supply rail against transient overvoltage in battery-powered sensor nodes. IC Role / Device Role / Timing Role: Two-terminal shunt regulator absorbing excess current above 16 V to protect downstream LDOs and microcontrollers. Use Value: Limits rail excursion to ≤17.1 V during 100 µs surges up to 1.5 A, preventing latch-up in 3.3 V logic interfaces. |
Use Scenario: Providing stable 16 V reference for 12-bit SAR ADC biasing in industrial data acquisition modules. IC Role / Device Role / Timing Role: Precision Zener source establishing fixed reference voltage for ADC internal scaling circuitry. Use Value: Delivers <±0.5 % voltage stability over 0–70 °C due to low rdif and known SZ, reducing gain error to <0.3 LSB. |
| Signal-Level Voltage Translation | ESD Protection Interface |
Use Scenario: Level-shifting 3.3 V logic signals to 16 V domain in PLC I/O driver stages. IC Role / Device Role / Timing Role: Bidirectional clamp limiting signal swing between anode and cathode to prevent overvoltage on CMOS inputs. Use Value: Maintains <1 ns response time due to low Cj, preserving edge integrity while blocking >16 V excursions. |
Use Scenario: Protecting RS-485 transceiver pins from ±8 kV contact ESD per IEC 61000-4-2. IC Role / Device Role / Timing Role: Low-capacitance shunt element diverting ESD current away from sensitive IC pins to ground. Use Value: Absorbs 40 W peak pulse energy without parametric shift, validated for >1000 ESD strikes at 100 ns rise time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5245BS | 16 V nominal, ±5 %, 225 mW Ptot, SOT-23 package, 350 Ω rdif | Higher differential resistance increases load regulation error by ~75 % vs. BZX84W-C16F | Select when legacy SOT-23 footprint compatibility is required and tighter regulation is not critical |
| Vishay BZT52-C16 | 16 V nominal, ±5 %, 500 mW Ptot, SOD-123 package, 150 Ω rdif, −65 °C to +150 °C Tstg | Larger SOD-123 footprint occupies 2.5× more board area; higher power rating unnecessary for 275 mW use cases | Select only if thermal margin exceeds 275 mW or existing design uses SOD-123 land pattern |
Compared with MMBZ5245BS and BZT52-C16, BZX84W-C16F offers optimal balance of low rdif, minimal SOT323 footprint, and precise 12.4 mV/K temperature tracking - making it preferred for space-constrained, thermally stable 16 V reference designs.
Availability
BZX84W-C16F is available at Aetrix Electronics and suitable for power supply rail clamping, ADC reference stabilization, signal-level voltage translation, and ESD protection interface applications requiring stable component supply and consistent Zener performance across production batches.
Supply support for BZX84W-C16F 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 essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The BZX84W series belongs to Nexperia's general-purpose Zener diode product line, engineered specifically for compact, high-frequency voltage regulation and transient suppression in space-constrained SMT designs.
FAQ
What is the guaranteed Zener voltage range for BZX84W-C16F at 5 mA test current?
The guaranteed Zener voltage range is 15.3 V to 17.1 V at IZ = 5 mA and Tj = 25 °C, reflecting its ±5 % tolerance specification. This range remains valid across the full operating ambient temperature range of −55 °C to +150 °C, with voltage shift governed by the +12.4 mV/K temperature coefficient.
Can BZX84W-C16F be used in forward-bias applications?
Yes - it functions as a standard silicon diode in forward bias with VF ≤ 0.9 V at IF = 10 mA. However, its primary design purpose is reverse-bias Zener regulation; forward conduction is limited to 200 mA absolute maximum and lacks optimized low-VF characteristics found in dedicated rectifiers or Schottky diodes.
Is Pin 2 electrically connected internally?
No - Pin 2 is explicitly designated "n.c." (not connected) in the official Nexperia datasheet and has no internal bond wire or semiconductor connection. It must remain unconnected on the PCB; routing traces or applying solder paste to this pad violates the specified mounting configuration and may compromise thermal performance or reliability.
How does the 275 mW power rating translate to real-world PCB thermal performance?
The 275 mW rating assumes mounting on a FR4 PCB with single-sided copper, tin-plated finish, and standard SOT323 footprint. Under those conditions, the junction-to-ambient thermal resistance is 455 K/W, meaning a 275 mW dissipation yields ~125 °C junction rise above ambient - requiring derating to ≤150 mW for continuous operation at 70 °C ambient to stay within the 150 °C Tj limit.
BZX84W-C16F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZX84W
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 275 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BZX84W-C16F FAQ
1.How can I place an order for BZX84W-C16F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84W-C16F 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 BZX84W-C16F reliable?
The price and inventory of BZX84W-C16F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84W-C16F is usually 5 days.
3.What payment methods are accepted for BZX84W-C16F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84W-C16F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84W-C16F?
BZX84W-C16F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84W-C16F 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 BZX84W-C16F?
For technical support, including BZX84W-C16F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84W-C16F requirements.
6.How does Aetrix verify that BZX84W-C16F is sourced from the original manufacturer or authorized distributors?
All BZX84W-C16F 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 BZX84W-C16F meets industry standards.
7.What is the process for return or replacement of BZX84W-C16F?
All BZX84W-C16F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84W-C16F, 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 BZX84W-C16F part is unused and in its original packaging.
Return procedure for BZX84W-C16F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84W-C16F Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
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SMAZ12-13-F
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