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Diodes Incorporated BZT52C16T-7
- Part No.:
- BZT52C16T-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZT52C16T-7.pdf
- Description:
- DIODE ZENER 16V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:97,674
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Product details
Overview
BZT52C16T-7 from Diodes Incorporated is a surface-mount Zener diode with a nominal zener voltage of 16 V, ±6.25% tolerance (15.3–17.1 V), 300 mW power dissipation, 40 Ω maximum zener impedance at 5 mA test current, and SOD523 package. It provides precise voltage regulation in low-power biasing, reference, and overvoltage protection circuits for consumer and industrial power management systems.
For engineers reviewing the BZT52C16T-7 datasheet, BZT52C16T-7 pinout, BZT52C16T-7 application, or BZT52C16T-7 equivalent, this page delivers verified electrical specs, thermal derating behavior, cathode-band polarity confirmation, JEDEC-qualified reliability data, and direct substitution guidance against industry-standard 16 V Zeners in SOD523.
Technical Context
This Zener operates in reverse breakdown mode with a specified test current of 5 mA and exhibits a positive temperature coefficient of +11.2 mV/°C - enabling predictable drift compensation in temperature-sensitive references. Its 1.0 µA maximum reverse leakage at 14.0 V ensures minimal quiescent current draw in high-impedance bias networks.
The device is rated for operation from –55 °C to +150 °C and features a thermal resistance of 417 °C/W (junction-to-ambient) on FR-4 PCB with 2 oz copper, requiring careful layout for sustained 300 mW dissipation. Its flat-lead SOD523 package supports automated placement while maintaining low profile (<0.65 mm height) and high power density.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16.0 V nominal, 15.3–17.1 V range at 5 mA - defines stable regulation point for precision reference design |
| Power Dissipation (PD) | 300 mW at 25 °C ambient - sets maximum continuous DC or pulsed power handling on standard PCB |
| Zener Impedance (ZZT) | 40 Ω max at 1 kHz, 5 mA - determines AC regulation stiffness and ripple rejection capability |
| Reverse Leakage (IR) | 0.1 µA max at 14.0 V - ensures negligible error current in high-Z feedback or sensing nodes |
| Thermal Resistance (RθJA) | 417 °C/W - quantifies junction temperature rise per mW on standard FR-4 layout; requires derating above 25 °C |
| Operating Temperature | –55 °C to +150 °C - supports automotive under-hood and industrial control environments |
Pinout & Package
Package: SOD523 - ultra-compact, low-profile surface-mount package (1.25 mm × 0.85 mm × 0.65 mm), cathode identified by band marking, matte tin–annealed terminals, JEDEC-compliant footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to lower-potential node; reverse-biased during regulation; forms reference return path |
| Cathode | Zener breakdown terminal / regulated output node | Connected to higher-potential supply rail; delivers stable 16 V when reverse biased above VZ |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-qualified reliability | Qualified to AEC-Q200 stress standards and high-reliability manufacturing per IATF 16949 - suitable for automotive and industrial life-critical designs |
| Green compound packaging | Molded plastic meeting UL 94V-0 flammability rating and RoHS 3 / halogen-free requirements - enables eco-compliant end-product certification |
| Low-profile SOD523 footprint | 0.65 mm max height and 1.25 mm × 0.85 mm body - supports dense PCB layouts and automated optical inspection (AOI) |
| Stable temperature coefficient | +11.2 mV/°C - allows predictable drift modeling and compensation in temperature-varying reference circuits |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
|
Use Scenario: Providing stable 16 V reference for linear regulator feedback or ADC reference buffer in battery-powered IoT sensors. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to generate fixed voltage node independent of load current variation. Use Value: Delivers ±6.25% voltage accuracy with <0.1 µA leakage at 14 V - minimizes error in 12-bit+ measurement systems. |
Use Scenario: Protecting microcontroller GPIO pins from transient surges in industrial HMI panels exposed to ESD and inductive switching noise. IC Role / Device Role / Timing Role: Shunt clamp limiting input voltage to 17.1 V peak during transients, diverting excess current to ground. Use Value: Responds within nanoseconds with 40 Ω dynamic impedance - clamps fast spikes without latch-up or damage to downstream logic. |
| Current Source Bias | Temperature-Compensated Reference |
|
Use Scenario: Establishing constant bias current for op-amp input stages or LED driver ICs in compact lighting modules. IC Role / Device Role / Timing Role: Zener + series resistor forming two-terminal current source with defined compliance voltage. Use Value: Maintains 5 mA test current across 15.3–17.1 V range - enables predictable 1–2% current stability over supply variations. |
Use Scenario: Building a compensated reference pair with a forward-biased diode to cancel thermal drift in precision analog front-ends. IC Role / Device Role / Timing Role: Zener providing +11.2 mV/°C drift offset matched against –2 mV/°C diode forward drop. Use Value: Enables sub-50 ppm/°C reference stability when paired - critical for sensor signal conditioning in wide-temperature environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16 V Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5245BS-7-F | Same 16 V nominal, but SOT-323 package (larger footprint, 350 mW PD, 30 Ω ZZT) | Higher power margin and lower impedance, but 30% larger board area and different thermal profile | Select when higher surge energy handling or lower AC impedance is required; verify pad layout compatibility |
| BZX84-C16 | SOT-23 package, 250 mW PD, 40 Ω ZZT, wider VZ tolerance (±5%) | Lower cost and broader availability, but reduced power rating and no AEC-Q200 qualification | Prefer for cost-sensitive consumer designs where automotive qualification and 300 mW headroom are not required |
Compared with MMBZ5245BS-7-F and BZX84-C16, BZT52C16T-7 offers the smallest footprint (SOD523), JEDEC/AEC-Q200 reliability, and optimal balance of 300 mW rating and 40 Ω impedance - making it ideal for space-constrained, high-reliability industrial and automotive subsystems.
Availability
BZT52C16T-7 is available at Aetrix Electronics and suitable for voltage reference generation, overvoltage protection, and current-source biasing requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for BZT52C16T-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, specializing in high-reliability, energy-efficient components for automotive, industrial, and consumer markets.
BZT52C16T-7 belongs to the BZT52C series of surface-mount Zener diodes engineered for precision voltage regulation in space-constrained, thermally demanding applications - emphasizing low-profile packaging, tight tolerances, and extended temperature operation.
FAQ
What is the maximum reverse voltage (VR) before significant leakage occurs?
The BZT52C16T-7 exhibits ≤0.1 µA reverse leakage at 14.0 V, and leakage rises to 1.0 µA at 16.0 V. At 17.1 V (max VZ), leakage remains below 5 µA - confirming stable regulation onset without premature conduction. This threshold is validated per DS30502 Rev. 18-2 Figure 5.
Can BZT52C16T-7 be used in parallel for higher power handling?
No - Zener diodes exhibit negative temperature coefficients in parallel configurations, causing current hogging and thermal runaway. The device is rated for 300 mW single-device operation only. For higher power, use a single higher-rated Zener or active regulation with a pass transistor.
Is the SOD523 package compatible with standard reflow profiles?
Yes - the SOD523 package is qualified for IPC/JEDEC J-STD-020 moisture sensitivity level 1 and supports standard lead-free reflow profiles (peak 260 °C, 60 sec max). Terminal finish is matte tin annealed over Alloy 42, ensuring reliable solder wetting and intermetallic formation.
Does BZT52C16T-7 meet automotive qualification requirements?
The standard BZT52C16T-7 is JEDEC-qualified and manufactured in IATF 16949 facilities, but full AEC-Q200 qualification requires the Q-suffix variant (e.g., BZT52C16TQ-7). Automotive-grade versions include PPAP documentation and extended stress testing - confirm part number suffix before deployment in vehicle systems.
BZT52C16T-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±6%
- 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
BZT52C16T-7 FAQ
1.How can I place an order for BZT52C16T-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C16T-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 BZT52C16T-7 reliable?
The price and inventory of BZT52C16T-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C16T-7 is usually 5 days.
3.What payment methods are accepted for BZT52C16T-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C16T-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C16T-7?
BZT52C16T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C16T-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 BZT52C16T-7?
For technical support, including BZT52C16T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C16T-7 requirements.
6.How does Aetrix verify that BZT52C16T-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C16T-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 BZT52C16T-7 meets industry standards.
7.What is the process for return or replacement of BZT52C16T-7?
All BZT52C16T-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C16T-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 BZT52C16T-7 part is unused and in its original packaging.
Return procedure for BZT52C16T-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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