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Diodes Incorporated BZT52C15-13
- Part No.:
- BZT52C15-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C15-13.pdf
- Description:
- DIODE ZENER 15V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:4,131
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Product details
Overview
BZT52C15-13 from Diodes Incorporated is a surface-mount 15 V Zener diode in SOD123 package, rated for 500 mW power dissipation at TL = +75°C and 370 mW at TA = +25°C, with 30 Ω maximum Zener impedance at 5 mA test current and ±5% voltage tolerance (13.8–15.6 V), used for precision voltage regulation and overvoltage protection in low-power DC rails.
For engineers reviewing the BZT52C15-13 datasheet, BZT52C15-13 pinout, BZT52C15-13 application, or BZT52C15-13 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (RθJA = 338 °C/W), reverse leakage (≤0.1 µA @ 10.5 V), temperature coefficient (+10.5 mV/°C), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable reference voltage under varying load and temperature conditions. Its planar die construction ensures consistent breakdown characteristics and low dynamic impedance (ZZT ≤ 30 Ω @ 5 mA).
Designed for medium-current general-purpose regulation, it supports automated SMT assembly with matte tin-plated Alloy 42 leads and complies with RoHS, halogen-free, and AEC-Q101 standards - confirming suitability for automotive and industrial environments where long-term stability and solderability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15 V nominal, 13.8–15.6 V range at 5 mA - defines regulated output voltage tolerance for reference design |
| Power Dissipation (PD) | 370 mW @ TA = +25°C - sets maximum continuous power in ambient PCB layout without heatsinking |
| Zener Impedance (ZZT) | ≤30 Ω @ IZT = 5 mA - ensures minimal voltage deviation under load transients |
| Reverse Leakage (IR) | ≤0.1 µA @ VR = 10.5 V - guarantees low standby current in voltage-clamp circuits |
| Temperature Coefficient | +10.5 mV/°C - quantifies voltage drift per degree Celsius, critical for temperature-stable references |
| Thermal Resistance (RθJA) | 338 °C/W - determines junction-to-ambient temperature rise per watt, guiding thermal layout on FR-4 |
Pinout & Package
Package: SOD123 - surface-mount plastic case with cathode band marking, 0.010 g weight, UL 94V-0 flammability rating, and moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to lower-potential node in regulation circuit; reverse-biased during operation |
| Cathode | Zener breakdown terminal / voltage reference output | Connected to regulated rail; maintains stable 15 V relative to anode when reverse-biased ≥10.5 V |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures repeatable Zener voltage distribution and low parameter variation across production lots |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control and body electronics |
| Lead-free & halogen-free | Meets global environmental compliance (RoHS 2, JEDEC J-STD-020 Level 1) without compromising solder joint integrity |
| Matte tin finish on Alloy 42 leadframe | Provides robust solderability and intermetallic formation control for high-yield reflow assembly |
Applications
| Power Supply Voltage Reference | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Stabilizing feedback voltage in low-power linear regulators or switching converter error amplifiers. IC Role / Device Role / Timing Role: Provides precise 15 V reference to comparator or op-amp input for output regulation. Use Value: Maintains ±5% output accuracy over temperature and line variations due to tight VZ tolerance and low ZZT. |
Use Scenario: Protecting microcontroller I/O pins or sensor inputs from transient overvoltage events. IC Role / Device Role / Timing Role: Shunts excess energy above 15.6 V to ground before damage occurs. Use Value: Limits clamping voltage to ≤15.6 V with <0.1 µA leakage below 10.5 V, minimizing standby power loss. |
| Automotive Sensor Biasing | Industrial Signal Conditioning |
Use Scenario: Supplying stable bias voltage to analog sensors (e.g., pressure or temperature transducers) in vehicle ECUs. IC Role / Device Role / Timing Role: Acts as a rugged, temperature-compensated voltage source in harsh under-hood environments. Use Value: AEC-Q101 qualification and +10.5 mV/°C TC enable predictable drift compensation in closed-loop systems. |
Use Scenario: Setting threshold levels in analog comparators for process monitoring or alarm triggering. IC Role / Device Role / Timing Role: Delivers repeatable trip point independent of supply fluctuations. Use Value: Low RθJA (338 °C/W) and stable Zener impedance ensure consistent threshold accuracy across operating temperatures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5245B-7-F | Zener voltage 15 V (14.25–15.75 V), 350 mW PD, SOT-23 package, RθJA = 357 °C/W | Smaller footprint but higher thermal resistance; less suitable for sustained 5 mA operation at elevated ambient | Select when board space is constrained and power dissipation remains below 250 mW |
| 1N4744A | 15 V Zener, 1 W PD, DO-41 through-hole package, RθJA ≈ 50 °C/W | Higher power handling but incompatible with SMT automation and automotive vibration requirements | Choose only for prototyping or legacy through-hole designs requiring >370 mW dissipation |
Compared with MMBZ5245B-7-F, BZT52C15-13 offers superior thermal performance and AEC-Q101 qualification; compared with 1N4744A, it enables automated manufacturing and meets modern automotive reliability standards despite lower absolute power rating.
Availability
BZT52C15-13 is available at Aetrix Electronics and suitable for automotive ECU voltage reference, industrial sensor biasing, and consumer power supply clamp circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZT52C15-13 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 semiconductor company specializing in discrete, analog, and mixed-signal devices, with emphasis on high-reliability, energy-efficient solutions for automotive, industrial, and computing markets.
The BZT52 series belongs to Diodes' general-purpose Zener diode product line, engineered for cost-effective, high-volume voltage regulation and protection in space-constrained, thermally demanding applications.
FAQ
What is the maximum reverse voltage before breakdown for BZT52C15-13?
The specified Zener voltage is 15 V nominal with a guaranteed range of 13.8 V to 15.6 V at 5 mA test current. Breakdown begins at the minimum VZ (13.8 V), and the device maintains regulation up to its power limit. It is not rated for continuous operation above 15.6 V without exceeding thermal limits.
Is BZT52C15-13 suitable for automotive applications?
Yes - it is qualified to AEC-Q101 standards, features halogen- and antimony-free "Green" construction, and operates across –65 °C to +150 °C. Its SOD123 package and matte tin plating meet automotive solderability and vibration resistance requirements.
How does temperature affect the Zener voltage of BZT52C15-13?
It has a positive temperature coefficient of +10.5 mV/°C, meaning its Zener voltage increases by approximately 10.5 mV per degree Celsius rise in junction temperature. This behavior is stable and documented in the datasheet for use in temperature-compensated reference designs.
Can BZT52C15-13 replace a 1N4744A in existing designs?
No - while both regulate at 15 V, BZT52C15-13 is a surface-mount SOD123 device rated for 370 mW at +25°C, whereas 1N4744A is a through-hole DO-41 part rated for 1 W. Direct replacement requires PCB redesign, thermal reassessment, and verification of current capability under worst-case ambient conditions.
BZT52C15-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 15 V
- Tolerance:
- ±6%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 10.5 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-123
BZT52C15-13 FAQ
1.How can I place an order for BZT52C15-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C15-13 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 BZT52C15-13 reliable?
The price and inventory of BZT52C15-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C15-13 is usually 5 days.
3.What payment methods are accepted for BZT52C15-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C15-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C15-13?
BZT52C15-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C15-13 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 BZT52C15-13?
For technical support, including BZT52C15-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C15-13 requirements.
6.How does Aetrix verify that BZT52C15-13 is sourced from the original manufacturer or authorized distributors?
All BZT52C15-13 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 BZT52C15-13 meets industry standards.
7.What is the process for return or replacement of BZT52C15-13?
All BZT52C15-13 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C15-13, 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 BZT52C15-13 part is unused and in its original packaging.
Return procedure for BZT52C15-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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