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Diodes Incorporated BZT52C24SQ-7-F
- Part No.:
- BZT52C24SQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZT52C24SQ-7-F.pdf
- Description:
- DIODE ZENER 24V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:5,900
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Product details
Overview
BZT52C24SQ-7-F from Diodes Incorporated is a surface-mount Zener diode with nominal zener voltage 24 V, 5 mA test current, 70 Ω maximum zener impedance at 5 mA, 0.1 µA maximum reverse leakage at 18.4 V, and ±5% voltage tolerance. It operates in SOD323 package and is AEC-Q101 qualified for automotive applications.
For engineers reviewing the BZT52C24SQ-7-F datasheet, BZT52C24SQ-7-F pinout, BZT52C24SQ-7-F application, or BZT52C24SQ-7-F equivalent, key selection criteria include zener voltage stability across temperature (±16.8 mV/°C), low leakage at rated VR, power dissipation limit of 200 mW, and compatibility with automated SMT assembly on FR-4 PCBs.
Technical Context
This device functions as a precision voltage reference and overvoltage clamp in low-power analog and digital circuits. Its planar die construction ensures stable breakdown characteristics, while the SOD323 package supports high-density layout and thermal performance up to +150°C junction temperature.
The diode exhibits a typical zener voltage range of 22.8 V to 25.6 V at 5 mA, with thermal coefficient of +16.8 mV/°C and total capacitance under 10 pF at 1 V reverse bias - enabling use in noise-sensitive regulation and signal conditioning paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 24 V nominal, 22.8–25.6 V range at IZT = 5 mA - defines clamping threshold in protection circuits |
| Power Dissipation (PD) | 200 mW - limits continuous energy handling on standard FR-4 pads without forced cooling |
| Zener Impedance (ZZT) | 70 Ω max at 5 mA - determines regulation stiffness under dynamic load changes |
| Reverse Leakage (IR) | 0.1 µA max at VR = 18.4 V - ensures minimal quiescent current in battery-powered sensing nodes |
| Thermal Coefficient | +16.8 mV/°C - quantifies voltage drift per degree Celsius rise in ambient or junction temperature |
| Package | SOD323 - 1.3 mm × 1.7 mm footprint with cathode band polarity marking for automated optical inspection |
| Qualification | AEC-Q101 qualified - validated for automotive under-hood and infotainment subsystems requiring reliability beyond commercial grade |
Pinout & Package
Two-terminal SOD323 package with cathode identified by a visible band on the top surface. Terminals are non-polarized in function but require correct orientation during placement to ensure proper reverse-bias operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node in shunt regulator | Connected to lower potential side; forms return path during zener conduction |
| Cathode | Zener breakdown terminal / Input node for voltage clamping | Connected to higher potential side; conducts when VIN exceeds VZ, diverting excess current to ground |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Enables tight VZ tolerance control and repeatable breakdown behavior across production lots |
| AEC-Q101 qualification | Validates robustness for automotive electronics operating from −40°C to +125°C ambient |
| Lead-free & halogen-free | Meets RoHS 2 and JEDEC J-STD-020 Level 1 moisture sensitivity for reflow compatibility |
| Low capacitance (<10 pF) | Minimizes signal distortion in high-frequency feedback loops and ESD-coupled data lines |
Applications
| Automotive Body Control Module (BCM) Voltage Clamp | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Clamps transient spikes on 24 V supply rails feeding microcontroller I/O peripherals in BCMs. IC Role / Device Role / Timing Role: Shunt voltage regulator protecting downstream logic inputs from load-dump-induced overvoltage. Use Value: Prevents latch-up or permanent damage to 3.3 V or 5 V interface circuitry while maintaining <0.1 µA leakage at nominal rail voltage. | Use Scenario: Stabilizes reference voltage for 12-bit ADC front-end in pressure transducer modules. IC Role / Device Role / Timing Role: Precision voltage reference providing stable 24 V bias for bridge excitation and op-amp gain-setting networks. Use Value: Delivers ±0.5% regulation accuracy over −40°C to +85°C due to predictable +16.8 mV/°C TC and low ZZT. |
| Consumer USB-C Power Negotiation Protection | Medical Infusion Pump Power Monitoring |
Use Scenario: Limits voltage on CC line monitoring circuitry during USB PD negotiation faults. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp safeguarding MCU GPIO pins interfacing to Type-C port controllers. Use Value: Responds within nanoseconds to 30 V transients while adding <10 pF parasitic capacitance to preserve signal integrity. | Use Scenario: Monitors 24 V DC input to infusion pump motor driver stage for undervoltage/overvoltage alarms. IC Role / Device Role / Timing Role: Analog comparator reference source enabling accurate trip-point detection at 22.8–25.6 V window. Use Value: Enables fail-safe shutdown before motor stall or thermal runaway, supported by AEC-Q101 reliability validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5242B-7-F | Zener voltage 24 V, but ±5% tolerance only at 20 mA test current; 30 Ω ZZT; SOD123 package (larger footprint) | Higher power handling (500 mW), less suitable for ultra-compact layouts | Select when board space allows larger package and higher surge current capability is required |
| BZX84-C24 | 24 V zener, ±5%, but rated at 5 mA and 350 mW; SOT23 package; no AEC-Q101 qualification | Commercial-grade only; not validated for automotive temperature cycling or humidity testing | Select for cost-sensitive industrial controls where automotive qualification is unnecessary |
Compared with MMSZ5242B-7-F and BZX84-C24, BZT52C24SQ-7-F offers tighter thermal coefficient control (+16.8 mV/°C vs. unspecified for alternatives), AEC-Q101 compliance, and optimized SOD323 footprint for high-density automotive PCBs - making it preferred for safety-critical voltage monitoring in harsh environments.
Availability
BZT52C24SQ-7-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, USB-C power protection circuits, and medical infusion pump power monitoring systems requiring stable component supply and long-term lifecycle support.
Supply support for BZT52C24SQ-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The BZT52C series belongs to Diodes' automotive-qualified Zener diode product line, engineered specifically for voltage regulation, overvoltage protection, and reference generation in space-constrained, thermally demanding environments.
FAQ
What is the maximum reverse voltage (VR) at which leakage remains ≤0.1 µA?
The BZT52C24SQ-7-F specifies 0.1 µA maximum reverse current at VR = 18.4 V. This value is defined in the Electrical Characteristics table and confirmed under standard test conditions (TA = +25°C). Exceeding this voltage increases leakage exponentially and may compromise regulation accuracy in precision applications.
Can this diode be used in parallel for higher power dissipation?
No - Zener diodes like the BZT52C24SQ-7-F should not be paralleled due to mismatched breakdown voltages causing current hogging. Even small VZ variations (±0.8 V) between units lead to uneven current sharing and thermal runaway. Use a single higher-power Zener or switch to an active regulator for >200 mW requirements.
Is the SOD323 package compatible with standard reflow profiles?
Yes - the SOD323 package uses matte tin finish on alloy 42 leads and is rated for moisture sensitivity Level 1 per J-STD-020. It supports standard Pb-free reflow profiles (peak 260°C, 10–30 sec above 217°C) without baking, provided the tape-and-reel packaging remains sealed until use.
Does the "Q" in BZT52C24SQ-7-F indicate automotive qualification?
Yes - the "Q" suffix denotes AEC-Q101 qualification. This part is manufactured at Diodes' Chengdu Assembly/Test site (CAT), verified for automotive applications including temperature cycling, humidity testing, and mechanical shock per AEC-Q101 Rev D requirements.
BZT52C24SQ-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 24 V
- Tolerance:
- ±5.83%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 70 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 16.8 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-323
BZT52C24SQ-7-F FAQ
1.How can I place an order for BZT52C24SQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C24SQ-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 BZT52C24SQ-7-F reliable?
The price and inventory of BZT52C24SQ-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 BZT52C24SQ-7-F is usually 5 days.
3.What payment methods are accepted for BZT52C24SQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C24SQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C24SQ-7-F?
BZT52C24SQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C24SQ-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 BZT52C24SQ-7-F?
For technical support, including BZT52C24SQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C24SQ-7-F requirements.
6.How does Aetrix verify that BZT52C24SQ-7-F is sourced from the original manufacturer or authorized distributors?
All BZT52C24SQ-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 BZT52C24SQ-7-F meets industry standards.
7.What is the process for return or replacement of BZT52C24SQ-7-F?
All BZT52C24SQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C24SQ-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 BZT52C24SQ-7-F part is unused and in its original packaging.
Return procedure for BZT52C24SQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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