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Diodes Incorporated BZT52C16Q-7-F
- Part No.:
- BZT52C16Q-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C16Q-7-F.pdf
- Description:
- DIODE ZENER 16V 370MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:1,179
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Product details
Overview
BZT52C16Q-7-F from Diodes Incorporated is an automotive-grade surface-mount Zener diode with a nominal zener voltage of 16 V, ±5% tolerance (15.3–17.1 V), 500 mW power dissipation at TL = +75°C, and 370 mW at TA = +25°C, used for precision voltage regulation and overvoltage protection in power supply rails and sensor interface circuits.
For engineers reviewing the BZT52C16Q-7-F datasheet, BZT52C16Q-7-F pinout, BZT52C16Q-7-F application, or BZT52C16Q-7-F equivalent, key selection criteria include its AEC-Q101 qualification, SOD123 package thermal performance (RθJA = 338°C/W), low leakage current (IR ≤ 0.1 µA @ VR = 10.4 V), and stable temperature coefficient (+11.2 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 planar die construction ensures consistent breakdown characteristics and low dynamic impedance (ZZT = 40 Ω @ IZT = 5 mA).
The device exhibits a positive temperature coefficient of +11.2 mV/°C, enabling predictable voltage drift across –65°C to +150°C operating range. It is optimized for medium-current regulation (IZK = 0.1 mA, IZT = 5 mA) and features a cathode band polarity indicator for unambiguous PCB orientation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16 V nominal, 15.3–17.1 V range @ 5 mA - defines regulated output voltage accuracy |
| Power Dissipation (PD) | 370 mW @ TA = +25°C - limits continuous power handling on standard FR-4 PCB |
| Zener Impedance (ZZT) | 40 Ω @ IZT = 5 mA - determines regulation stiffness under load transients |
| Reverse Leakage (IR) | ≤0.1 µA @ VR = 10.4 V - ensures minimal quiescent current in standby circuits |
| Temperature Coefficient | +11.2 mV/°C - quantifies voltage drift per degree Celsius rise |
| Thermal Resistance (RθJA) | 338 °C/W - defines junction-to-ambient temperature rise per watt dissipated |
Pinout & Package
Package: SOD123 - surface-mount plastic case with matte tin-plated alloy 42 leadframe, UL 94V-0 rated, 0.010 g weight, cathode band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side of regulated rail; forms reference ground for shunt regulation |
| Cathode | Zener breakdown terminal / voltage reference output | Connected to higher-potential rail; maintains stable 16 V relative to anode during reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| Planar die construction | Ensures tight VZ distribution and repeatable Zener impedance across production lots |
| Lead-free & halogen-free | Complies with RoHS 2 (2011/65/EU) and Diodes Inc.'s "Green" definition (<900 ppm Br/Cl, <1000 ppm Sb) |
| SOD123 footprint | Enables high-density PCB layout and compatibility with automated pick-and-place assembly |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Clamping transient spikes on 12 V battery-supplied microcontroller I/O lines in vehicle infotainment modules. IC Role / Device Role / Timing Role: Shunt regulator providing overvoltage protection by conducting excess current above 16 V threshold. Use Value: Prevents latch-up or damage to downstream logic with <0.1 µA leakage below clamping voltage and fast response to ESD events. |
Use Scenario: Stabilizing excitation voltage for bridge-based pressure sensors in factory automation PLC analog input stages. IC Role / Device Role / Timing Role: Precision voltage reference source maintaining constant bias across sensor elements. Use Value: Enables <±1% full-scale measurement accuracy via 16 V regulation with +11.2 mV/°C TC compensated in firmware. |
| Consumer USB-C Power Delivery Monitoring | Medical Diagnostic Equipment Reference |
Use Scenario: Providing stable 16 V reference for ADC monitoring of USB PD adapter output voltage in portable chargers. IC Role / Device Role / Timing Role: Voltage reference element in feedback path of isolated DC-DC monitor circuit. Use Value: Delivers 370 mW power headroom at room temperature and supports 5 mA test current for calibration traceability. |
Use Scenario: Generating calibrated bias for photodiode amplifiers in portable blood oximetry devices. IC Role / Device Role / Timing Role: Low-noise, low-leakage shunt reference ensuring stable transimpedance amplifier offset. Use Value: Achieves <1 nA dark current contribution due to 0.1 µA max IR at 10.4 V, critical for sub-µA signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5245BS-7-F | Same 16 V rating, SOT-323 package, RθJA = 300°C/W, PD = 300 mW @ TA | Higher thermal resistance but smaller footprint; suited for space-constrained consumer boards | Select when board area is limited and power dissipation ≤300 mW suffices |
| BZX84-C16-7-F | 16 V Zener, SOT-23 package, PD = 350 mW @ TA, ZZT = 45 Ω @ 5 mA | Lower power rating and slightly higher impedance; non-AEC-Q101 commercial grade | Select for cost-sensitive industrial controls where automotive qualification is not required |
Compared with MMBZ5245BS-7-F and BZX84-C16-7-F, BZT52C16Q-7-F offers superior thermal robustness (370 mW rating), AEC-Q101 compliance for automotive use, and tighter VZ tolerance-making it optimal for safety-critical or thermally demanding environments.
Availability
BZT52C16Q-7-F is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interfaces, USB-C power monitoring, and medical diagnostic equipment requiring stable component supply and long-term lifecycle support.
Supply support for BZT52C16Q-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 computing markets.
BZT52C16Q-7-F belongs to the BZT52C series of automotive-qualified Zener diodes designed for precision voltage regulation and transient suppression in harsh-environment electronic systems.
FAQ
What is the maximum reverse voltage (VR) at which leakage current remains ≤0.1 µA?
The BZT52C16Q-7-F guarantees IR ≤ 0.1 µA at VR = 10.4 V, as specified in the Electrical Characteristics table. This value corresponds to 65% of the nominal 16 V zener voltage and serves as the recommended maximum reverse bias for ultra-low-leakage operation in precision reference circuits.
Is the SOD123 package compatible with standard reflow profiles for lead-free soldering?
Yes-the SOD123 package uses matte tin finish over alloy 42 leadframe and is qualified for lead-free reflow per J-STD-020, with moisture sensitivity level 1. It withstands peak temperatures up to 260°C and supports standard Pb-free SAC305 profiles without delamination or solder joint reliability issues.
How does the +11.2 mV/°C temperature coefficient affect regulation accuracy over –40°C to +125°C?
Over that range, the zener voltage shifts by approximately ±1.8 V (11.2 mV/°C × 165°C span), resulting in a total VZ variation from ~14.2 V to ~17.8 V. System-level compensation or selection of tighter-tolerance units (e.g., ±2%) may be needed for applications requiring <±1% absolute voltage stability.
Can BZT52C16Q-7-F replace BZT52C15Q-7-F in a 15 V rail clamp design?
No-BZT52C16Q-7-F has a minimum zener voltage of 15.3 V, exceeding the 15 V rail's nominal value. Using it risks premature conduction and excessive power dissipation. For a 15 V rail, BZT52C15Q-7-F (13.8–15.6 V) or BZT52C13Q-7-F (12.4–14.1 V) provides appropriate margin and headroom.
BZT52C16Q-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±5.63%
- Power - Max:
- 370 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:
- SOD-123
BZT52C16Q-7-F FAQ
1.How can I place an order for BZT52C16Q-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C16Q-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 BZT52C16Q-7-F reliable?
The price and inventory of BZT52C16Q-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 BZT52C16Q-7-F is usually 5 days.
3.What payment methods are accepted for BZT52C16Q-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C16Q-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C16Q-7-F?
BZT52C16Q-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C16Q-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 BZT52C16Q-7-F?
For technical support, including BZT52C16Q-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C16Q-7-F requirements.
6.How does Aetrix verify that BZT52C16Q-7-F is sourced from the original manufacturer or authorized distributors?
All BZT52C16Q-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 BZT52C16Q-7-F meets industry standards.
7.What is the process for return or replacement of BZT52C16Q-7-F?
All BZT52C16Q-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C16Q-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 BZT52C16Q-7-F part is unused and in its original packaging.
Return procedure for BZT52C16Q-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52C16Q-7-F Tags
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