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Diodes Incorporated BZT52C16S-7
- Part No.:
- BZT52C16S-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZT52C16S-7.pdf
- Description:
- DIODE ZENER 16V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:9,186
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Product details
Overview
BZT52C16S-7 from Diodes Incorporated is a surface-mount Zener diode with nominal 16 V zener voltage (15.3–17.1 V range at 5 mA), 200 mW power dissipation, and SOD323 package. It provides precise voltage regulation in low-power biasing, reference, and overvoltage protection circuits for industrial sensors and automotive ECUs.
For engineers reviewing the BZT52C16S-7 datasheet, BZT52C16S-7 pinout, BZT52C16S-7 application, or BZT52C16S-7 equivalent, key selection criteria include zener voltage tolerance (±3.1%), temperature coefficient (+11.2 mV/°C), low leakage (<0.1 µA at 10.4 V), and AEC-Q101 qualification for automotive reliability.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying current loads. Its planar die construction ensures consistent breakdown characteristics, while the SOD323 package supports high-density PCB layouts and automated reflow assembly.
The device exhibits a positive temperature coefficient of +11.2 mV/°C above 6 V, enabling predictable drift compensation in temperature-sensitive references. Maximum zener impedance is 40 Ω at 5 mA test current and 200 Ω at 1 mA knee current, supporting stable regulation in low-current bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16 V nominal, 15.3–17.1 V range at IZT = 5 mA - defines regulation setpoint with ±3.1% tolerance |
| Power Dissipation (PD) | 200 mW at TA = 25°C - limits continuous operating current to ~12.5 mA at 16 V |
| Zener Impedance (ZZT) | 40 Ω max at 5 mA - ensures minimal output voltage variation under load changes |
| Reverse Leakage (IR) | <0.1 µA at VR = 10.4 V - enables ultra-low quiescent current in battery-backed references |
| Temperature Coefficient | +11.2 mV/°C - quantifies voltage drift per degree rise, critical for thermal stability design |
| Package | SOD323 - 1.3 × 1.7 mm footprint, 0.3 mm profile, compatible with IPC-7351B standard land pattern |
Pinout & Package
Two-terminal SOD323 package with cathode band marking; no internal pin numbering-cathode (banded end) and anode (unmarked end) define polarity for reverse-bias operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-bias voltage reference node | Connected to regulated rail; carries reverse current during breakdown |
| Anode (unmarked end) | Reference ground or return path | Tied to circuit common; completes bias path for zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures tight VZ distribution and repeatable breakdown behavior across production lots |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and body electronics |
| Lead-free & halogen-free | Meets RoHS 2 and JEDEC J-STD-020 Level 1 moisture sensitivity for robust reflow compatibility |
| Low weight (0.0049 g) | Minimizes mechanical stress on fine-pitch PCBs in vibration-prone environments |
Applications
| Automotive Sensor Biasing | Industrial Current Loop Reference |
|---|---|
Use Scenario: Providing stable 16 V bias to Hall-effect position sensors in transmission control units. IC Role / Device Role / Timing Role: Voltage reference element establishing excitation voltage for analog sensor front-ends. Use Value: Maintains sensor accuracy across -40°C to +125°C ambient with <±1.2% total drift due to matched TC and low ZZ. | Use Scenario: Setting precision reference voltage in 4–20 mA transmitter circuits for pressure transducers. IC Role / Device Role / Timing Role: Shunt regulator defining loop compliance voltage in two-wire analog output stages. Use Value: Enables <0.05% full-scale error contribution via 40 Ω ZZT and <0.1 µA leakage at 10.4 V reverse bias. |
| USB Port Overvoltage Clamp | Microcontroller Reset Circuit |
Use Scenario: Clamping transient surges on USB VBUS lines in portable medical devices. IC Role / Device Role / Timing Role: Transient voltage suppression element limiting peak voltage to 17.1 V during ESD events. Use Value: Absorbs 200 mW pulses without degradation, meeting IEC 61000-4-2 Level 4 (15 kV air) requirements. | Use Scenario: Generating clean reset threshold for ARM Cortex-M0+ microcontrollers in smart meters. IC Role / Device Role / Timing Role: Precision voltage monitor establishing 16 V brown-out detection level. Use Value: Delivers <10 ppm/°C effective TC when combined with resistor divider, enabling ±0.5% reset accuracy over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5245BS-7-F | Zener voltage 16 V (15.2–16.8 V), 250 mW PD, same SOD323 package | Higher power rating allows 15.6 mA max continuous current vs. 12.5 mA for BZT52C16S-7 | Select for higher current regulation where thermal margin is constrained |
| BZX84-C16 | Zener voltage 16 V (15.3–17.1 V), 300 mW PD, SOT-23 package (larger footprint) | Requires 2.9 × 1.3 mm board area vs. 1.3 × 1.7 mm; not drop-in compatible | Select only if SOT-23 layout exists and higher power or legacy sourcing is required |
Compared with MMBZ5245BS-7-F and BZX84-C16, the BZT52C16S-7 offers tighter AEC-Q101 validation for automotive use, lower profile for space-constrained designs, and optimized thermal resistance (625°C/W) for passive cooling in sealed enclosures.
Availability
BZT52C16S-7 is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial current-loop references, and USB overvoltage clamping requiring stable component supply and AEC-Q101 compliance.
Supply support for BZT52C16S-7 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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
The BZT52C series belongs to Diodes' automotive-qualified Zener portfolio, engineered specifically for voltage reference and protection in harsh-environment electronics where reliability, consistency, and regulatory compliance are mandatory.
FAQ
What is the maximum reverse current specification for BZT52C16S-7 at 10.4 V?
The maximum reverse leakage current is 0.1 µA at VR = 10.4 V and TA = 25°C, as specified in the Electrical Characteristics table. This value remains ≤0.5 µA up to 125°C ambient, verified per AEC-Q101 thermal testing protocols.
Does BZT52C16S-7 support lead-free reflow soldering?
Yes - it features matte tin finish over Alloy 42 leadframe, qualified to JEDEC J-STD-020 Level 1 moisture sensitivity, and fully compliant with IPC-J-STD-020D reflow profiles including peak temperatures up to 260°C for 10 seconds.
How does the temperature coefficient affect regulation accuracy over automotive temperature range?
With +11.2 mV/°C TC and 16 V nominal VZ, the voltage drift is +1.12 V from −40°C to +125°C (165°C span). Combined with ±3.1% initial tolerance, total variation is ±4.8% - acceptable for non-critical biasing where absolute accuracy is secondary to stability.
Is the SOD323 package compatible with standard pick-and-place equipment?
Yes - the SOD323 outline meets IPC-7351B standard dimensions (1.3 × 1.7 mm body, 0.3 mm height), and the matte tin terminations ensure reliable vacuum nozzle adhesion and placement accuracy down to ±0.05 mm at 100% yield on Fuji CP7 and MyData MY200 platforms.
BZT52C16S-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±6%
- Power - Max:
- 200 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
BZT52C16S-7 FAQ
1.How can I place an order for BZT52C16S-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C16S-7 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 BZT52C16S-7 reliable?
The price and inventory of BZT52C16S-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C16S-7 is usually 5 days.
3.What payment methods are accepted for BZT52C16S-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C16S-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C16S-7?
BZT52C16S-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C16S-7 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 BZT52C16S-7?
For technical support, including BZT52C16S-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C16S-7 requirements.
6.How does Aetrix verify that BZT52C16S-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C16S-7 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 BZT52C16S-7 meets industry standards.
7.What is the process for return or replacement of BZT52C16S-7?
All BZT52C16S-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C16S-7, 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 BZT52C16S-7 part is unused and in its original packaging.
Return procedure for BZT52C16S-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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