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Diodes Incorporated BZX84B16Q-7-F
- Part No.:
- BZX84B16Q-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84B16Q-7-F.pdf
- Description:
- DIODE ZENER 16V 300MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:5,963
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Product details
Overview
BZX84B16Q-7-F from Diodes Incorporated is an AEC-Q101 qualified, ±2% tolerance precision Zener diode in SOT23 package, with nominal zener voltage 16.0 V at 5.0 mA test current, 350 mW power dissipation, and 40 Ω typical zener impedance at 5 mA. It provides stable voltage reference for automotive power rail monitoring and ECU voltage regulation circuits.
For engineers reviewing the BZX84B16Q-7-F datasheet, BZX84B16Q-7-F pinout, BZX84B16Q-7-F application, or BZX84B16Q-7-F equivalent, key selection criteria include zener voltage tolerance (±2%), thermal resistance (357 °C/W), automotive qualification status, reverse leakage (<0.1 µA at 11.2 V), and temperature coefficient (+10.4 mV/°C).
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage under varying load and temperature conditions. Its 16.0 V nominal zener voltage is specified at 5.0 mA test current, with tight ±2% initial tolerance and +10.4 mV/°C temperature coefficient ensuring predictable drift across -65°C to +150°C operating range.
The device delivers 350 mW power dissipation when terminals are held at ambient temperature, and exhibits 40 Ω dynamic impedance at 5 mA and 200 Ω at 1 mA, enabling low-noise regulation in low-current bias networks. Its SOT23 package supports automated assembly and meets AEC-Q101 stress testing for automotive reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16.0 V nominal, 15.7–16.3 V range at 5.0 mA - ensures precise voltage clamping in 12 V automotive systems |
| Zener Impedance (ZZT) | 40 Ω at 5 mA - minimizes output voltage variation under small-signal current changes |
| Power Dissipation (PD) | 350 mW - supports continuous operation in compact PCB layouts with adequate thermal relief |
| Reverse Leakage (IR) | <0.1 µA at 11.2 V - prevents parasitic loading in high-impedance reference nodes |
| Temperature Coefficient | +10.4 mV/°C - enables predictable voltage drift compensation in wide-temperature environments |
| Thermal Resistance (RθJA) | 357 °C/W - defines junction-to-ambient rise per watt under standard mounting conditions |
| Operating Temperature | −65°C to +150°C - validated for under-hood automotive electronics and industrial control units |
Pinout & Package
Package: SOT23 - surface-mount plastic case with matte tin-plated Alloy 42 leadframe, moisture sensitivity level 1, UL 94V-0 flammability rating, and 0.008 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal / cathode reference ground | Connected to system ground or lower-potential node during reverse-bias operation |
| Cathode (Pin 2) | Zener breakdown terminal / regulated output node | Provides stable 16.0 V reference when biased through current-limiting resistor |
| NC / Heat Sink (Pin 3) | Non-connected / thermal path | Not electrically connected; serves as mechanical anchor and minor thermal conduction path |
Key Features
| Feature | Design Value |
|---|---|
| ±2% zener voltage tolerance | Reduces need for post-production calibration in voltage reference circuits |
| AEC-Q101 qualification | Validates reliability for automotive power management and body control modules |
| 350 mW power rating with 357 °C/W RθJA | Enables use in space-constrained designs without forced-air cooling |
| Halogen- and antimony-free "Green" construction | Meets RoHS 3 (2015/863/EU) and automotive environmental compliance requirements |
| SOT23 package with solderable matte tin finish | Ensures compatibility with lead-free reflow profiles and automated pick-and-place |
Applications
| Automotive ECU Power Monitoring | Industrial Sensor Reference Supply |
|---|---|
Use Scenario: Monitoring 12 V battery rail voltage in engine control units to detect undervoltage or overvoltage faults. IC Role / Device Role / Timing Role: Precision voltage reference for ADC input scaling and comparator threshold setting. Use Value: ±2% tolerance and +10.4 mV/°C TC enable accurate fault detection across −40°C to +125°C ambient. |
Use Scenario: Providing stable excitation voltage to bridge-based pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: Low-drift DC reference source for ratiometric sensor signal conditioning. Use Value: 40 Ω zener impedance and <0.1 µA leakage minimize sensor offset error and long-term drift. |
| Consumer Power Adapter Feedback | Medical Diagnostic Equipment Biasing |
Use Scenario: Secondary-side voltage sensing in isolated flyback converters for USB-C PD adapters. IC Role / Device Role / Timing Role: Zener clamp in optocoupler feedback loop to regulate output voltage. Use Value: 350 mW rating and SOT23 footprint support compact, thermally efficient feedback network layout. |
Use Scenario: Generating calibrated bias voltages for analog front-end amplifiers in portable ultrasound devices. IC Role / Device Role / Timing Role: Low-noise, temperature-stable reference for precision gain-setting networks. Use Value: AEC-Q101 qualification and −65°C to +150°C range ensure reliability in sterilizable, battery-powered enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84C16-7-F | ±5% tolerance, 16 V nominal, same SOT23 package and 350 mW rating | Lower cost for non-critical reference use; higher voltage drift due to wider tolerance | Select when ±5% accuracy suffices and AEC-Q101 qualification is not required |
| MMSZ4687T1G | ±5% tolerance, 16 V nominal, 500 mW rating, SOD-123 package, no AEC-Q101 | Larger footprint, higher power handling, but lacks automotive qualification and tighter tolerance | Choose for industrial power supplies where thermal margin >350 mW is needed and automotive compliance is irrelevant |
Compared with BZX84C16-7-F and MMSZ4687T1G, BZX84B16Q-7-F uniquely combines ±2% tolerance, AEC-Q101 qualification, and SOT23 form factor-making it the only option for automotive-grade, space-constrained voltage references requiring high initial accuracy.
Availability
BZX84B16Q-7-F is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, consumer power adapters, and medical diagnostic equipment requiring stable component supply with full traceability and lifecycle continuity.
Supply support for BZX84B16Q-7-F 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and consumer markets.
BZX84B series belongs to Diodes' precision Zener diode product line, engineered specifically for automotive voltage reference and regulation applications demanding tight tolerance, AEC-Q101 qualification, and robust thermal performance.
FAQ
What is the maximum reverse voltage (VR) before significant leakage occurs?
The BZX84B16Q-7-F exhibits ≤0.1 µA reverse leakage at 11.2 V, which is its rated reverse voltage (VR). Beyond this, leakage increases nonlinearly; operation above 11.2 V is intended only for controlled zener breakdown at the 16.0 V nominal point, not sustained reverse blocking.
Can this Zener diode be used in parallel for higher power handling?
No-parallel connection is not recommended due to mismatched zener voltage tolerances (±2%) and temperature coefficients (+10.4 mV/°C), which cause current hogging and thermal runaway. For higher power, select a single higher-rated device like the 1 W PZM16NB or use active regulation.
Is the SOT23 pinout compatible with standard PCB footprints for Zener diodes?
Yes-the SOT23 package uses standardized pin 1 (anode), pin 2 (cathode), and pin 3 (NC) orientation. The recommended pad layout (X=0.8 mm, Y=0.9 mm, C=2.0 mm) matches IPC-7351B SOT-23-3A land patterns and is verified for lead-free reflow compatibility.
Does the "Q" in BZX84B16Q-7-F indicate AEC-Q101 qualification?
Yes-the "Q" suffix explicitly denotes AEC-Q101 qualification per Diodes Incorporated's ordering nomenclature. This includes stress testing for temperature cycling, humidity bias, HTRB, and ESD per AEC standards, confirmed in DS36159 Rev. 3.
BZX84B16Q-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 11.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BZX84B16Q-7-F FAQ
1.How can I place an order for BZX84B16Q-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84B16Q-7-F 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 BZX84B16Q-7-F reliable?
The price and inventory of BZX84B16Q-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84B16Q-7-F is usually 5 days.
3.What payment methods are accepted for BZX84B16Q-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84B16Q-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84B16Q-7-F?
BZX84B16Q-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84B16Q-7-F 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 BZX84B16Q-7-F?
For technical support, including BZX84B16Q-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84B16Q-7-F requirements.
6.How does Aetrix verify that BZX84B16Q-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84B16Q-7-F 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 BZX84B16Q-7-F meets industry standards.
7.What is the process for return or replacement of BZX84B16Q-7-F?
All BZX84B16Q-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84B16Q-7-F, 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 BZX84B16Q-7-F part is unused and in its original packaging.
Return procedure for BZX84B16Q-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84B16Q-7-F Tags
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