Diodes Incorporated BZT52C15LPQ-7
- Part No.:
- BZT52C15LPQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
BZT52C15LPQ-7.pdf
- Description:
- DIODE ZENER 15V 250MW 2DFN
- Quantity:
- Payment:

- Shipping:

Inventory:2,775
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Product details
Overview
BZT52C15LPQ from Diodes Incorporated is a 15 V, 5 mA Zener diode in an ultra-small X1-DFN1006-2 package, rated for 250 mW power dissipation and AEC-Q101 qualified for automotive voltage regulation and ESD protection circuits.
For engineers reviewing the BZT52C15LPQ datasheet, BZT52C15LPQ pinout, BZT52C15LPQ application, or BZT52C15LPQ equivalent, key selection criteria include zener voltage tolerance (±4.7%), low dynamic impedance (200 Ω @ 5 mA), temperature coefficient (+9.2 to +13.0 mV/°C), and IATF16949-certified manufacturing for mission-critical embedded systems.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable reference voltage under varying load and temperature conditions. Its 15 V nominal zener voltage is specified at 5 mA test current with ±4.7% tolerance (13.8–15.6 V), and exhibits a positive temperature coefficient between +9.2 and +13.0 mV/°C.
The device uses a planar silicon junction structure optimized for low leakage and repeatable breakdown characteristics. It supports continuous operation from −65 °C to +150 °C and derates linearly above +25 °C ambient, delivering 125 mW at +125 °C per the published power derating curve.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 15 V nominal, 13.8–15.6 V range at 5 mA - defines precision voltage clamping threshold |
| Power Dissipation | 250 mW at 25 °C - sets maximum steady-state thermal load on PCB pad layout |
| Zener Impedance | 200 Ω max @ 5 mA - determines output voltage stability under dynamic current changes |
| Reverse Leakage | 0.1 µA max @ 10.5 V - ensures minimal quiescent current in standby regulation paths |
| Forward Voltage | 0.9 V @ 10 mA - enables use as bidirectional clamp when combined with series diode |
| Temp Coefficient | +9.2 to +13.0 mV/°C - quantifies voltage drift over automotive temperature range |
| Package | X1-DFN1006-2 (1.0 × 0.6 mm) - enables high-density placement in space-constrained ECUs |
Pinout & Package
Package: X1-DFN1006-2 - ultra-compact, leadless, surface-mount plastic package with NiPdAu-plated copper terminals; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Current entry in forward bias / cathode reference in reverse bias | Connected to lower-potential node during regulation; requires proper thermal pad routing |
| 2 (Cathode) | Current exit in forward bias / zener voltage reference in reverse bias | Marked side (bar) on top view; ties to regulated rail or ESD return path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including engine control, body modules, and ADAS sensors |
| IATF16949 manufacturing | Ensures consistent parametric yield and traceability across production lots |
| Green compound (94V-0) | Halogen- and antimony-free molding material compliant with RoHS 3 and automotive environmental standards |
| Ultra-small footprint | 1.0 mm × 0.6 mm outline reduces PCB area by >60% vs. SOD-123 packages |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing 5 V or 3.3 V reference rails for microcontroller ADCs and CAN transceivers under battery voltage fluctuations. IC Role / Device Role / Timing Role: Precision voltage clamp protecting analog front-end inputs from transient overvoltage events. Use Value: Maintains <±1% regulation error across −40 °C to +125 °C ambient, enabling reliable sensor data acquisition. | Use Scenario: Providing stable bias voltage for bridge amplifier stages in pressure and temperature transmitters. IC Role / Device Role / Timing Role: Low-drift zener reference source for op-amp feedback networks requiring <50 ppm/°C drift. Use Value: Temperature coefficient of +9.2 to +13.0 mV/°C allows predictable compensation in 4–20 mA loop designs. |
| Consumer Power Adapter Feedback | Medical Wearable Battery Monitoring |
Use Scenario: Secondary-side voltage sensing in isolated flyback converters for USB-C PD adapters. IC Role / Device Role / Timing Role: Zener-based optocoupler feedback element setting output voltage accuracy. Use Value: 200 Ω dynamic impedance ensures <±2% output regulation despite line/load transients. | Use Scenario: Overvoltage protection for lithium-ion cell monitoring ICs in compact wearable health devices. IC Role / Device Role / Timing Role: Clamp diode limiting input voltage to fuel gauge or charger controller pins. Use Value: 0.1 µA reverse leakage at 10.5 V minimizes standby current drain in always-on battery supervision circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5245B-7-F | 15 V nominal, ±5% tolerance, 500 mW rating, SOD-123 package | Larger footprint and higher power handling; less suitable for ultra-dense layouts | Preferred where thermal margin >250 mW is required and board space permits |
| BZX84-C15-7 | 15 V nominal, ±5% tolerance, 300 mW rating, SOT-23 package | Three-terminal package with unused third pin; higher parasitic inductance than DFN | Chosen when legacy SOT-23 reflow profiles or test socket compatibility are mandatory |
Compared with MMSZ5245B-7-F and BZX84-C15-7, BZT52C15LPQ offers superior board-area efficiency and automotive qualification-critical for next-gen ECU miniaturization-while trading off absolute power headroom and legacy package compatibility.
Availability
BZT52C15LPQ is available at Aetrix Electronics and suitable for automotive engine control units, industrial sensor signal conditioning, and consumer power adapter feedback requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for BZT52C15LPQ 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 BZT52CxxLPQ series belongs to Diodes' AEC-Q101-qualified Zener diode portfolio, engineered specifically for automotive voltage reference, overvoltage protection, and ESD suppression in harsh-environment electronic control modules.
FAQ
What is the maximum reverse voltage before breakdown for BZT52C15LPQ?
The BZT52C15LPQ has a nominal zener voltage of 15 V, with a guaranteed breakdown range of 13.8 V to 15.6 V at 5 mA test current. It does not exhibit sharp breakdown below 13.8 V; reverse leakage remains ≤0.1 µA up to 10.5 V, per the Electrical Characteristics table.
Can BZT52C15LPQ be used in parallel for higher power dissipation?
No-parallel connection of Zener diodes is not recommended due to mismatched breakdown voltages and thermal runaway risk. The device is rated for 250 mW at 25 °C and must be thermally managed via PCB copper area; for higher power, select a single higher-rated part like MMSZ5245B-7-F.
Is the X1-DFN1006-2 package compatible with standard reflow profiles?
Yes-the X1-DFN1006-2 package is qualified for lead-free reflow per JEDEC J-STD-020, with Moisture Sensitivity Level 1. Standard IPC/JEDEC profiles apply; no pre-bake is required, and peak temperatures up to 260 °C are supported with appropriate soak time.
Does BZT52C15LPQ support bidirectional ESD protection?
No-it is a unidirectional Zener diode. For bidirectional ESD protection, pair it with a series diode or use a dedicated TVS array such as D24Z5.1LQ-7, which provides symmetrical ±5.1 V clamping and IEC 61000-4-2 Level 4 compliance.
BZT52C15LPQ-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):
- 15 V
- Tolerance:
- ±6%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 10.5 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:
- X1-DFN1006-2
BZT52C15LPQ-7 FAQ
1.How can I place an order for BZT52C15LPQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C15LPQ-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 BZT52C15LPQ-7 reliable?
The price and inventory of BZT52C15LPQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C15LPQ-7 is usually 5 days.
3.What payment methods are accepted for BZT52C15LPQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C15LPQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C15LPQ-7?
BZT52C15LPQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C15LPQ-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 BZT52C15LPQ-7?
For technical support, including BZT52C15LPQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C15LPQ-7 requirements.
6.How does Aetrix verify that BZT52C15LPQ-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C15LPQ-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 BZT52C15LPQ-7 meets industry standards.
7.What is the process for return or replacement of BZT52C15LPQ-7?
All BZT52C15LPQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C15LPQ-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 BZT52C15LPQ-7 part is unused and in its original packaging.
Return procedure for BZT52C15LPQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52C15LPQ-7 Tags

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