Diodes Incorporated BZT52C10LP-7
- Part No.:
- BZT52C10LP-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
BZT52C10LP-7.pdf
- Description:
- DIODE ZENER 10V 250MW 2DFN
- Quantity:
- Payment:

- Shipping:

Inventory:82,269
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Product details
Overview
BZT52C10LP-7 from Diodes Incorporated is a surface-mount Zener diode with nominal 10 V zener voltage (9.4–10.6 V), 5 mA test current, 20 Ω max zener impedance at IZT, 0.2 µA max reverse leakage at 7.0 V, and 250 mW power dissipation in a DFN1006-2 package. It serves as a precision voltage reference or overvoltage clamp in low-power sensor signal conditioning circuits.
For engineers reviewing the BZT52C10LP-7 datasheet, BZT52C10LP-7 pinout, BZT52C10LP-7 application, or BZT52C10LP-7 equivalent, key selection criteria include zener voltage tolerance, dynamic impedance at operating current, thermal resistance (500 °C/W), cathode polarity marking, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This device operates in reverse breakdown to maintain stable voltage across its terminals under controlled current conditions. Its 10 V nominal zener voltage exhibits a positive temperature coefficient (+4.5 to +8.0 mV/°C) and is specified at 5 mA test current with 20 Ω maximum dynamic impedance at that point.
The DFN1006-2 package features NiPdAu-plated copper leads, moisture sensitivity level 1, and UL 94V-0 flammability rating. It is designed for automated SMT assembly and qualified to AEC-Q101 for high-reliability automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10 V nominal, 9.4–10.6 V range at 5 mA - defines clamping threshold in protection circuits |
| Power Dissipation (PD) | 250 mW at TA = 25°C - limits continuous power handling on standard FR-4 PCB |
| Zener Impedance (ZZT) | 20 Ω max at IZT = 5 mA - determines voltage regulation stability under load variation |
| Reverse Leakage (IR) | 0.2 µA max at VR = 7.0 V - ensures minimal standby current in battery-powered systems |
| Thermal Resistance (RθJA) | 500 °C/W - indicates junction-to-ambient heat transfer efficiency with minimal pad layout |
| Temp. Coefficient (αVZ) | +4.5 to +8.0 mV/°C at IZTC = 5 mA - quantifies voltage drift with ambient temperature change |
Pinout & Package
Package: DFN1006-2, ultra-small leadless surface-mount case with cathode indicated by dot marking on top surface. Dimensions: 1.00 × 0.60 × 0.50 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / reverse breakdown reference | Connected to lower-potential node during clamping; forms voltage reference ground reference |
| Cathode | Zener breakdown terminal / voltage regulation output | Marked with dot; connected to higher-potential node; delivers regulated 10 V when reverse-biased |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including engine control modules and body electronics |
| Lead-free & RoHS-compliant construction | Meets global environmental regulations without compromising solderability or reliability |
| DFN1006-2 footprint | Enables high-density PCB layouts and compatibility with standard 0201 reflow profiles |
| Low reverse leakage (0.2 µA) | Minimizes quiescent current draw in always-on sensor interface circuits |
Applications
| Automotive Cabin Sensors | Industrial Temperature Transmitters |
|---|---|
Use Scenario: Voltage regulation for analog output of MEMS pressure sensors in HVAC control units. IC Role / Device Role / Timing Role: Zener reference providing stable 10 V bias for ratiometric ADC excitation. Use Value: Maintains ±1% output accuracy over -40°C to +125°C due to AEC-Q101 thermal stability. | Use Scenario: Overvoltage clamp protecting 4–20 mA loop transmitter ICs from ESD transients. IC Role / Device Role / Timing Role: Fast-acting shunt protector absorbing >1 kV HBM spikes before downstream circuitry. Use Value: Limits transient voltage to ≤10.6 V with <20 Ω dynamic impedance, preserving loop integrity. |
| Medical Wearable Battery Monitoring | Smart Meter Reference Subsystem |
Use Scenario: Precision voltage reference for lithium-ion cell voltage measurement in portable ECG devices. IC Role / Device Role / Timing Role: Low-leakage (0.2 µA) 10 V reference enabling accurate 16-bit ADC scaling. Use Value: Reduces measurement offset error by minimizing reference current-induced IR drop in PCB traces. | Use Scenario: Secondary voltage clamp in isolated DC-DC converter feedback path for revenue-grade metering ICs. IC Role / Device Role / Timing Role: Stabilizes optocoupler input voltage against supply ripple and load step changes. Use Value: Ensures <±0.5% regulation error across 10-year field life due to low parameter drift and AEC-Q101 screening. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5240BLT1G | Same 10 V nominal zener voltage but SOT-23 package (higher RθJA = 350 °C/W); 500 mW PD | Higher power handling but larger footprint; less suitable for ultra-dense layouts | Select when higher power margin or legacy SOT-23 board compatibility is required |
| BZX384-C10 | 10 V zener in SOD-323 package; 250 mW PD; 30 Ω ZZT max; no AEC-Q101 qualification | Lacks automotive qualification; higher impedance reduces regulation precision | Acceptable for consumer-grade industrial controls where AEC-Q101 is not mandated |
Compared with MMBZ5240BLT1G and BZX384-C10, BZT52C10LP-7 offers superior space efficiency (DFN1006-2), guaranteed automotive reliability, and tighter zener impedance-making it optimal for next-generation compact, safety-critical designs.
Availability
BZT52C10LP-7 is available at Aetrix Electronics and suitable for automotive cabin sensors, industrial temperature transmitters, and medical wearable battery monitoring requiring stable component supply and long-term lifecycle support.
Supply support for BZT52C10LP-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 computing markets.
The BZT52CxxLP series belongs to Diodes' AEC-Q101-qualified Zener diode portfolio, engineered specifically for precision voltage reference and transient suppression in space-constrained automotive electronics.
FAQ
What is the cathode identification method for BZT52C10LP-7?
The cathode is marked with a visible dot on the top surface of the DFN1006-2 package. This dot aligns with the cathode terminal in the mechanical drawing and must be oriented toward the higher-potential node in reverse-bias applications. The anode connects to ground or lower-voltage rail during zener operation.
Does BZT52C10LP-7 support reflow soldering per JEDEC J-STD-020?
Yes, BZT52C10LP-7 is rated for moisture sensitivity level 1 and supports standard lead-free reflow profiles up to 260°C peak temperature. Its NiPdAu-plated terminals ensure reliable wetting and intermetallic formation without voiding or dewetting on FR-4 PCBs with recommended pad layout.
How does the temperature coefficient affect voltage regulation accuracy?
With a +4.5 to +8.0 mV/°C temperature coefficient, BZT52C10LP-7's zener voltage increases linearly with junction temperature. Over a 100°C range (−40°C to +60°C ambient), this introduces up to ±0.8 V drift, requiring system-level compensation or use within narrow thermal zones for sub-1% accuracy.
Can BZT52C10LP-7 replace older through-hole zeners like 1N4740A?
No-it is not a direct replacement due to different package (DFN1006-2 vs. DO-41), lower power rating (250 mW vs. 1 W), and distinct thermal behavior. While both regulate near 10 V, the BZT52C10LP-7 requires careful thermal design on PCB and is intended for SMT-only applications with AEC-Q101 compliance needs.
BZT52C10LP-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):
- 10 V
- Tolerance:
- ±6%
- Power - Max:
- 250 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:
- X1-DFN1006-2
BZT52C10LP-7 FAQ
1.How can I place an order for BZT52C10LP-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C10LP-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 BZT52C10LP-7 reliable?
The price and inventory of BZT52C10LP-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C10LP-7 is usually 5 days.
3.What payment methods are accepted for BZT52C10LP-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C10LP-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C10LP-7?
BZT52C10LP-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C10LP-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 BZT52C10LP-7?
For technical support, including BZT52C10LP-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C10LP-7 requirements.
6.How does Aetrix verify that BZT52C10LP-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C10LP-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 BZT52C10LP-7 meets industry standards.
7.What is the process for return or replacement of BZT52C10LP-7?
All BZT52C10LP-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C10LP-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 BZT52C10LP-7 part is unused and in its original packaging.
Return procedure for BZT52C10LP-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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