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Diodes Incorporated BZT52C30-13
- Part No.:
- BZT52C30-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C30-13.pdf
- Description:
- DIODE ZENER 30V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:9,202
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Product details
Overview
BZT52C30-13 from Diodes Incorporated is a surface-mount 30 V Zener diode in SOD123 package, rated for 500 mW power dissipation at TL = +75°C and 370 mW at TA = +25°C, with ±3.3% voltage tolerance (28.0–32.0 V), 80 Ω maximum Zener impedance at 2 mA, and 0.1 µA maximum reverse leakage at 24.4 V. It serves as a precision voltage reference or overvoltage clamp in low-power DC regulation circuits.
For engineers reviewing the BZT52C30-13 datasheet, BZT52C30-13 pinout, BZT52C30-13 application, or BZT52C30-13 equivalent, key selection criteria include its 30 V nominal Zener voltage, SOD123 footprint compatibility, AEC-Q101 qualification for automotive use, thermal resistance (RθJA = 338 °C/W), and low leakage performance under reverse bias conditions.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across load variations and supply fluctuations. Its planar die construction ensures consistent breakdown characteristics and long-term stability under repeated thermal cycling.
The device exhibits a positive temperature coefficient of +21.0 mV/°C near its 30 V operating point, enabling predictable drift compensation in multi-diode reference networks. It is specified for operation from –65 °C to +150 °C and supports automated pick-and-place assembly due to its SOD123 leadframe geometry and matte tin plating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 30 V (28.0–32.0 V range at 2 mA test current) |
| Power Dissipation | 370 mW at +25°C ambient - defines max continuous DC power without heatsinking |
| Zener Impedance | 80 Ω max at 2 mA - determines output voltage regulation sensitivity to current changes |
| Reverse Leakage Current | 0.1 µA max at 24.4 V - critical for low-power standby circuits and battery-backed systems |
| Thermal Resistance | RθJA = 338 °C/W - indicates self-heating rise per watt on standard FR-4 PCB |
| Operating Temperature | –65 °C to +150 °C - enables deployment in under-hood automotive or industrial environments |
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 node | Connected to lower-potential side in reverse-bias regulation; forms reference ground return path |
| Cathode | Zener breakdown terminal / voltage regulation node | Connected to higher-potential side; clamps voltage to 30 V when reverse biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures tight Zener voltage distribution and repeatable breakdown behavior across production lots |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Lead-free & halogen-free | Complies with RoHS 2 and JEDEC J-STD-020; eliminates hazardous substances in solder reflow and end-of-life disposal |
| SOD123 footprint | Enables high-density PCB layouts and compatibility with industry-standard pick-and-place equipment |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Voltage reference for microcontroller ADC input scaling in door module ECUs. IC Role / Device Role / Timing Role: Zener diode provides stable 30 V reference for resistive divider feeding 3.3 V LDO regulator. Use Value: Maintains ±3.3% reference accuracy across –40 °C to +125 °C ambient, supporting ASIL-B functional safety compliance. | Use Scenario: Overvoltage clamp protecting 24 V analog sensor interface inputs. IC Role / Device Role / Timing Role: Shunts transient surges above 32 V to ground before reaching op-amp front-end. Use Value: Limits peak input voltage to 32 V with <0.1 µA leakage at 24.4 V, preserving signal integrity in 4–20 mA loop receivers. |
| Consumer Power Adapter Feedback | Medical Portable Device Battery Monitor |
Use Scenario: Secondary-side voltage sensing in flyback converter feedback network. IC Role / Device Role / Timing Role: Sets optocoupler LED current threshold to regulate isolated 12 V output. Use Value: Delivers 30 V reference with 80 Ω dynamic impedance, enabling <±1% output regulation under line/load transients. | Use Scenario: Low-leakage voltage threshold detector for Li-ion cell overvoltage alarm. IC Role / Device Role / Timing Role: Triggers comparator when battery pack exceeds 30 V during charging cycle. Use Value: Draws only 0.1 µA at 24.4 V, extending standby time in battery-powered diagnostic handhelds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5260BLT1G | 30 V nominal, SOT-23 package, 225 mW power rating, 100 Ω Zz max at 20 mA | Higher Zz and lower power limit reduce regulation precision in medium-current applications | Select when board space is constrained and current demand stays below 5 mA |
| 1N4745A | 30 V nominal, DO-41 through-hole package, 1 W power rating, 35 Ω Zz max at 25 mA | Larger footprint and leaded construction incompatible with automated SMT lines | Choose for prototyping or legacy through-hole designs requiring higher surge tolerance |
Compared with MMBZ5260BLT1G and 1N4745A, BZT52C30-13 delivers optimal balance of SMT compatibility, AEC-Q101 qualification, and 370 mW thermal capability-making it preferred for volume automotive and industrial PCB assemblies where reliability and manufacturability are jointly prioritized.
Availability
BZT52C30-13 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, consumer power adapter feedback networks, and medical portable device battery monitors requiring stable component supply and full traceability.
Supply support for BZT52C30-13 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 manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The BZT52 series belongs to Diodes' general-purpose Zener diode product line, engineered for cost-effective, high-volume voltage regulation and protection in automotive, industrial, and consumer applications where precision, reliability, and RoHS compliance are mandatory.
FAQ
What is the maximum reverse voltage before breakdown for BZT52C30-13?
The BZT52C30-13 has a nominal Zener voltage of 30 V with a guaranteed range of 28.0 V to 32.0 V at 2 mA test current. Breakdown begins within this range; operation above 32.0 V risks exceeding power limits unless current is strictly limited by external series resistance.
Is BZT52C30-13 suitable for automotive applications?
Yes - BZT52C30-13 is qualified to AEC-Q101 standards, including stress tests for temperature cycling, high-temperature reverse bias, and electrostatic discharge. Its SOD123 package and lead-free construction meet automotive manufacturing and environmental requirements.
How does thermal derating affect BZT52C30-13's power handling?
At +25°C ambient, BZT52C30-13 supports 370 mW; this decreases linearly to zero at +150°C junction temperature. With RθJA = 338 °C/W, power must be reduced by ~1.1 mW per °C rise above +25°C ambient on standard FR-4 layout.
Can BZT52C30-13 replace a 1N4745A in existing designs?
No direct drop-in replacement: BZT52C30-13 uses SOD123 surface-mount packaging versus DO-41 through-hole, and has lower power rating (370 mW vs. 1 W). Layout redesign and current-limiting resistor recalculation are required to ensure safe operation under identical load conditions.
BZT52C30-13 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):
- 30 V
- Tolerance:
- ±7%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 21 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
BZT52C30-13 FAQ
1.How can I place an order for BZT52C30-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C30-13 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 BZT52C30-13 reliable?
The price and inventory of BZT52C30-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C30-13 is usually 5 days.
3.What payment methods are accepted for BZT52C30-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C30-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C30-13?
BZT52C30-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C30-13 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 BZT52C30-13?
For technical support, including BZT52C30-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C30-13 requirements.
6.How does Aetrix verify that BZT52C30-13 is sourced from the original manufacturer or authorized distributors?
All BZT52C30-13 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 BZT52C30-13 meets industry standards.
7.What is the process for return or replacement of BZT52C30-13?
All BZT52C30-13 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C30-13, 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 BZT52C30-13 part is unused and in its original packaging.
Return procedure for BZT52C30-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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