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Diodes Incorporated BZT52C11LP-7
- Part No.:
- BZT52C11LP-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
BZT52C11LP-7.pdf
- Description:
- DIODE ZENER 11V 250MW 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
BZT52C11LP-7 from Diodes Incorporated is a surface-mount Zener diode with nominal zener voltage 11 V, ±5.5% tolerance (10.4–11.6 V), 20 Ω maximum zener impedance at 5 mA test current, and 250 mW power dissipation in DFN1006-2 package. It provides precision voltage regulation in low-power biasing and reference circuits for automotive ECUs and industrial sensor signal conditioning.
For engineers reviewing the BZT52C11LP-7 datasheet, BZT52C11LP-7 pinout, BZT52C11LP-7 application, or BZT52C11LP-7 equivalent, this device is selected for stable 11 V clamping in space-constrained PCBs requiring AEC-Q101 qualification, RoHS compliance, and thermal resistance of 500 °C/W on FR-4.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable reference voltage across its terminals under controlled current conditions. Its 5 mA test current and 20 Ω dynamic impedance ensure predictable regulation behavior within ±5.5% voltage tolerance and 5.4 mV/°C to 9.0 mV/°C temperature coefficient range.
The DFN1006-2 package enables automated placement and reflow soldering, with NiPdAu-plated terminals ensuring MIL-STD-202-compliant solderability. Moisture sensitivity level 1 and -65 °C to +150 °C operating range support high-reliability deployment in automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 11 V nominal, 10.4–11.6 V range at 5 mA - defines precise clamping threshold for overvoltage protection |
| Power Dissipation | 250 mW at TA = 25 °C - limits continuous power handling on standard FR-4 PCB |
| Zener Impedance | 20 Ω max at IZT = 5 mA - ensures low dynamic resistance for stable regulation under load variation |
| Reverse Current | 0.1 µA max at VR = 8.0 V - guarantees minimal leakage in standby bias networks |
| Temp Coefficient | +5.4 to +9.0 mV/°C - quantifies positive drift of zener voltage with rising junction temperature |
| Package | DFN1006-2 (1.0 × 0.6 × 0.5 mm) - ultra-small footprint for high-density layout and automated assembly |
| Qualification | AEC-Q101 qualified - validated for automotive-grade reliability and stress testing |
Pinout & Package
DFN1006-2 package: 2-terminal surface-mount device with cathode marked by dot on top surface. Terminals are co-planar, non-leaded, and symmetrically arranged along the long edge.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reverse breakdown reference node | Connected to lower-potential side during regulation; forms reference ground return path |
| Cathode | Zener voltage output node / Breakdown anode | Marked with dot; delivers regulated 11 V when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including engine control and body modules |
| Lead-free & RoHS-compliant | No intentionally added lead; UL 94V-0 molded compound meets environmental compliance mandates |
| Moisture Sensitivity Level 1 | Unlimited floor life before reflow - eliminates baking requirement in SMT line |
| NiPdAu terminal finish | Ensures robust solder joint integrity and compatibility with Pb-free and SnPb processes |
| Ultra-small DFN1006-2 footprint | Reduces board area by >50% vs. SOD-123; supports miniaturized sensor and ECU designs |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Temperature Sensor Biasing |
|---|---|
Use Scenario: Providing stable 11 V reference for analog front-end amplifiers in knock sensor signal conditioning. IC Role / Device Role / Timing Role: Zener voltage reference and overvoltage clamp for op-amp input protection. Use Value: Maintains ±5.5% regulation accuracy across -40 °C to +125 °C ambient, enabling reliable sensor calibration. | Use Scenario: Biasing thermistor networks in HVAC controller PCBs where space is constrained. IC Role / Device Role / Timing Role: Precision DC voltage reference for ratiometric ADC measurement circuits. Use Value: Low 20 Ω zener impedance minimizes voltage shift under varying load currents, improving measurement repeatability. |
| USB-C Power Delivery Monitor | Smart Meter Reference Subsystem |
Use Scenario: Clamping auxiliary supply rail in USB-C PD communication IC monitoring circuitry. IC Role / Device Role / Timing Role: Overvoltage protection element for 3.3 V logic interface powered from 12 V bus. Use Value: 0.1 µA reverse leakage at 8 V ensures negligible quiescent current drain in always-on monitoring mode. | Use Scenario: Generating stable reference for metrology-grade ADC in single-phase electricity meters. IC Role / Device Role / Timing Role: Primary voltage reference source for isolated analog sensing stage. Use Value: AEC-Q101 qualification and -65 °C to +150 °C operation support long-term field reliability in outdoor meter enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5240BLT1G | Zener voltage 10 V (±5%), 30 Ω ZZT, SOT-23 package (2.9 × 1.3 × 1.0 mm) | Larger footprint and higher thermal resistance (625 °C/W) limit use in ultra-dense layouts | Select when legacy SOT-23 footprint compatibility is required over size reduction |
| BZX384-B11 | Zener voltage 11 V (±5%), 20 Ω ZZT, SOD-323 package (1.7 × 1.3 × 0.9 mm) | Non-AEC-Q101; moisture sensitivity level 1 but not automotive-qualified | Choose for cost-sensitive industrial applications where AEC-Q101 is not mandated |
Compared with MMBZ5240BLT1G and BZX384-B11, BZT52C11LP-7 offers the smallest footprint (1.0 × 0.6 mm), lowest thermal resistance (500 °C/W), and only part among the three qualified to AEC-Q101 - making it optimal for next-gen automotive and space-critical industrial designs.
Availability
BZT52C11LP-7 is available at Aetrix Electronics and suitable for automotive engine control units, industrial sensor biasing networks, and smart meter reference subsystems requiring stable component supply with full traceability and lifecycle management.
Supply support for BZT52C11LP-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 components for automotive, industrial, and consumer markets.
The BZT52CxxLP series belongs to Diodes' AEC-Q101-qualified Zener diode portfolio, engineered specifically for precision voltage reference and overvoltage protection in harsh-environment electronics.
FAQ
What is the maximum reverse voltage rating before breakdown for BZT52C11LP-7?
The device exhibits sharp reverse breakdown at 10.4–11.6 V when tested at 5 mA. Its absolute maximum reverse voltage is not specified separately; operation beyond 11.6 V at rated current risks exceeding 250 mW power dissipation and thermal runaway unless current is strictly limited by external series resistance.
Can BZT52C11LP-7 be used in place of a 12 V Zener diode?
No - BZT52C11LP-7 is rated for 11 V nominal zener voltage with ±5.5% tolerance (10.4–11.6 V). For 12 V regulation, BZT52C12LP-7 (11.4–12.7 V) is the correct variant; substituting the 11 V part would result in undershoot of the target reference voltage under all operating conditions.
Is the DFN1006-2 package compatible with standard reflow profiles?
Yes - the DFN1006-2 package is qualified for Pb-free reflow per J-STD-020C, with peak temperature up to 260 °C. Its moisture sensitivity level 1 allows unlimited exposure to ambient prior to reflow, eliminating pre-bake requirements in manufacturing.
Does BZT52C11LP-7 have polarity marking, and how is it identified?
Yes - cathode polarity is marked by a visible dot on the top surface of the DFN1006-2 package. The dot aligns with the cathode terminal, which must be connected to the higher-potential side of the circuit during reverse-bias operation to achieve zener regulation.
BZT52C11LP-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 0402 (1006 Metric)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±5%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 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:
- X1-DFN1006-2
BZT52C11LP-7 FAQ
1.How can I place an order for BZT52C11LP-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C11LP-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 BZT52C11LP-7 reliable?
The price and inventory of BZT52C11LP-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C11LP-7 is usually 5 days.
3.What payment methods are accepted for BZT52C11LP-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C11LP-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C11LP-7?
BZT52C11LP-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C11LP-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 BZT52C11LP-7?
For technical support, including BZT52C11LP-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C11LP-7 requirements.
6.How does Aetrix verify that BZT52C11LP-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C11LP-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 BZT52C11LP-7 meets industry standards.
7.What is the process for return or replacement of BZT52C11LP-7?
All BZT52C11LP-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C11LP-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 BZT52C11LP-7 part is unused and in its original packaging.
Return procedure for BZT52C11LP-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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