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Diodes Incorporated BZT52C10T-7
- Part No.:
- BZT52C10T-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZT52C10T-7.pdf
- Description:
- DIODE ZENER 10V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:116,898
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Product details
Overview
BZT52C10T-7 from Diodes Incorporated is a surface-mount 10 V Zener diode in SOD523 package, rated for 300 mW power dissipation, 5 mA test current, and 20 Ω dynamic impedance at 1 kHz; it provides precise voltage regulation in low-power biasing and reference circuits for consumer and industrial power management systems.
For engineers reviewing the BZT52C10T-7 datasheet, BZT52C10T-7 pinout, BZT52C10T-7 application, or BZT52C10T-7 equivalent, key selection criteria include nominal Zener voltage (10 V ±6%), reverse leakage (0.2 µA @ 7.0 V), thermal resistance (417 °C/W), and JEDEC-qualified reliability for stable operation across -55°C to +150°C ambient ranges.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified nominal Zener voltage of 10 V at 5 mA test current, exhibiting a temperature coefficient of +4.5 mV/°C and maximum Zener impedance of 20 Ω at 1 kHz. Its low-profile SOD523 package supports high-density PCB layouts while maintaining thermal performance under continuous DC bias.
The device meets JEDEC reliability standards and is qualified for high-reliability applications; its flat-lead construction enables efficient heat transfer, and the cathode band marking ensures unambiguous polarity identification during automated placement and inspection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10 V nominal, 9.4–10.6 V range at 5 mA - defines stable regulation point for reference and clamp circuits |
| Power Dissipation (PD) | 300 mW - sets maximum continuous DC power handling on FR-4 board with 2 oz copper |
| Zener Impedance (ZZT) | 20 Ω max at 1 kHz - determines AC regulation stability under varying load conditions |
| Reverse Leakage (IR) | 0.2 µA max @ 7.0 V - ensures minimal quiescent current in high-impedance bias networks |
| Thermal Resistance (RθJA) | 417 °C/W - quantifies junction-to-ambient temperature rise per watt under standard mounting |
| Operating Temperature | -55°C to +150°C - supports deployment in extended-environment automotive and industrial control modules |
Pinout & Package
Package: SOD523 - ultra-compact surface-mount plastic package (1.25 mm × 0.85 mm × 0.65 mm), matte tin-plated alloy 42 leadframe, cathode band marking on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to lower-potential node in reverse-bias configuration; forms reference return path |
| Cathode | Zener breakdown terminal / voltage regulation output | Connected to regulated voltage rail; marked by visible band; carries controlled reverse current |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SOD523 package | Enables high-density routing and space-constrained designs such as wearables and IoT sensor nodes |
| Totally lead-free & RoHS 3 compliant | Meets EU Directive 2015/863/EU with <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - supports green manufacturing |
| JEDEC-qualified reliability | Validated to AEC-Q stress standards for high-reliability use without automotive qualification overhead |
| Flat-lead thermal design | Reduces thermal resistance vs. traditional SOD-123, improving power handling in compact footprints |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 10 V reference for ADC voltage dividers and op-amp bias networks in battery-powered instrumentation. IC Role / Device Role / Timing Role: Precision voltage reference source with low temperature drift (+4.5 mV/°C) and minimal leakage (0.2 µA). Use Value: Enables 12-bit ADC accuracy without external precision references, reducing BOM count and layout area. | Use Scenario: Protecting microcontroller I/O pins from transient overvoltage events in industrial HMI panels. IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting input voltage to ≤10.6 V during ESD or surge events. Use Value: Prevents latch-up and gate oxide damage with sub-100 ns response and 300 mW energy absorption capability. |
| Voltage Monitor Threshold | LED Current Regulation |
Use Scenario: Detecting brown-out conditions in 12 V automotive subsystems using comparator-based monitoring circuitry. IC Role / Device Role / Timing Role: Stable 10 V threshold reference for comparator input, rejecting supply ripple via low ZZT (20 Ω). Use Value: Delivers consistent trip point across temperature (-55°C to +150°C), eliminating calibration drift. | Use Scenario: Setting constant current for indicator LEDs in medical diagnostic equipment with tight luminance tolerance. IC Role / Device Role / Timing Role: Zener-based current source where 10 V drop across series resistor defines LED drive current. Use Value: Achieves ±6% current accuracy over life and temperature, meeting IEC 62368-1 optical safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5240B-7-F | Same 10 V nominal rating but SOD-123 package (larger footprint, RθJA = 350 °C/W), 500 mW PD | Higher power handling suits higher-current clamping; less suitable for ultra-dense layouts | Select when thermal margin >100°C/W is required and board space permits larger package |
| BZX584C10 | SOD-323 package, 10 V rating, 200 mW PD, 40 Ω ZZT, tighter 5% tolerance (9.5–10.5 V) | Lower power and higher impedance limit use in precision references; tighter tolerance benefits threshold detection | Prefer for cost-sensitive, non-critical biasing where 5% tolerance suffices and 200 mW is adequate |
Compared with MMSZ5240B-7-F and BZX584C10, BZT52C10T-7 delivers optimal balance of miniaturization (SOD523), 300 mW capability, and 20 Ω impedance-making it ideal for space-constrained, medium-precision regulation where thermal and electrical performance must coexist.
Availability
BZT52C10T-7 is available at Aetrix Electronics and suitable for voltage reference generation, overvoltage protection, brown-out detection, and LED current setting requiring stable component supply across production lifecycles.
Supply support for BZT52C10T-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, manufacturing, and sales operations across Asia, Europe, and the Americas.
The BZT52 series belongs to Diodes' broad portfolio of surface-mount Zener diodes engineered for reliable voltage regulation and transient suppression in consumer, industrial, and communications equipment.
FAQ
What is the maximum reverse voltage (VR) that BZT52C10T-7 can withstand before breakdown?
The BZT52C10T-7 exhibits a nominal Zener voltage of 10 V at 5 mA test current, with guaranteed breakdown occurring between 9.4 V and 10.6 V. It is not rated for continuous operation above 10.6 V in reverse bias; sustained voltage beyond this range risks thermal runaway due to its 300 mW power limit and 417 °C/W thermal resistance.
Does BZT52C10T-7 meet automotive qualification standards?
No - BZT52C10T-7 is not AEC-Q200 qualified. It is JEDEC-qualified for high reliability but lacks PPAP documentation, IATF 16949 manufacturing certification, and automotive change control. For automotive use, Diodes offers the Q-suffix variant BZT52C10TQ-7-F, which is explicitly qualified to AEC-Q200 Grade 1.
How does the SOD523 package affect soldering and thermal performance?
The SOD523 package uses a flat-lead alloy 42 leadframe with matte tin annealing, ensuring compatibility with standard reflow profiles (peak 260°C). Its small pad area (1.92 mm²) results in higher RθJA (417 °C/W), so thermal relief must be minimized and adjacent copper pours avoided to prevent localized overheating during continuous 300 mW operation.
Can BZT52C10T-7 replace older through-hole Zeners like 1N4740A in new designs?
Yes - BZT52C10T-7 provides equivalent 10 V regulation in a surface-mount form factor, but requires layout adaptation: SOD523 footprint differs significantly from DO-41, and its lower power rating (300 mW vs. 1 W) mandates current limiting to ≤30 mA. It is not a drop-in replacement without thermal and schematic review.
BZT52C10T-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):
- 10 V
- Tolerance:
- ±6%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 200 nA @ 7 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
BZT52C10T-7 FAQ
1.How can I place an order for BZT52C10T-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C10T-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 BZT52C10T-7 reliable?
The price and inventory of BZT52C10T-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C10T-7 is usually 5 days.
3.What payment methods are accepted for BZT52C10T-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C10T-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C10T-7?
BZT52C10T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C10T-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 BZT52C10T-7?
For technical support, including BZT52C10T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C10T-7 requirements.
6.How does Aetrix verify that BZT52C10T-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C10T-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 BZT52C10T-7 meets industry standards.
7.What is the process for return or replacement of BZT52C10T-7?
All BZT52C10T-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C10T-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 BZT52C10T-7 part is unused and in its original packaging.
Return procedure for BZT52C10T-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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