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Diodes Incorporated BZT52B15LP-7B
- Part No.:
- BZT52B15LP-7B
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
BZT52B15LP-7B.pdf
- Description:
- DIODE ZENER 15V 250MW 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:281,218
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Product details
Overview
BZT52B15LP-7B from Diodes Incorporated is a precision surface-mount Zener diode with nominal 15 V breakdown voltage (±2% tolerance), 250 mW power rating, and DFN1006-2 (X1) package. It provides stable voltage reference and overvoltage protection in low-power analog circuits, power supply feedback loops, and ESD-clamped I/O interfaces.
For engineers reviewing the BZT52B15LP-7B datasheet, BZT52B15LP-7B pinout, BZT52B15LP-7B application, or BZT52B15LP-7B equivalent, key selection criteria include zener voltage accuracy, dynamic impedance at 5 mA, thermal resistance (500 °C/W), reverse leakage at 12 V, and RoHS-compliant lead-free terminations.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse bias above its specified zener voltage (14.7–15.3 V at 5 mA). Its low 15 Ω zener impedance at test current ensures minimal regulation error under load variation.
Designed for automated SMT assembly, it uses NiPdAu-plated copper leads and meets J-STD-020 Level 1 moisture sensitivity. The DFN1006-2 footprint supports high-density PCB layouts while maintaining thermal performance up to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.0 V nominal, 14.7–15.3 V range at 5 mA - enables precise 15 V rail clamping or reference generation |
| Power Dissipation (PD) | 250 mW at TA = 25 °C - limits continuous dissipation without heatsinking in compact designs |
| Zener Impedance (ZZT) | 15 Ω at 5 mA - ensures tight regulation under varying load currents |
| Reverse Leakage (IR) | 0.05 µA max at 12 V - minimizes standby current in battery-powered sensing nodes |
| Thermal Resistance (RθJA) | 500 °C/W - defines junction-to-ambient temperature rise per watt dissipated on standard FR-4 |
| Capacitance (CT) | 100 pF at 0 V, 1 MHz - impacts high-frequency noise filtering and signal integrity in RF-adjacent paths |
Pinout & Package
Package: X1-DFN1006-2 (1.0 mm × 0.6 mm, 0.5 mm height), leadless, cathode-bar marked on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection | Connected to ground or lower potential node during zener operation; carries forward current up to 10 mA |
| Cathode | Reverse-bias voltage reference terminal | Connected to regulated rail or protected signal line; sustains 15 V reverse breakdown with ±2% tolerance |
Key Features
| Feature | Design Value |
|---|---|
| Tight voltage tolerance | ±2% zener voltage accuracy at 5 mA - reduces calibration overhead in precision analog front-ends |
| Lead-free & green construction | Halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb) - satisfies strict environmental compliance for medical and automotive end equipment |
| Low-profile DFN package | 0.5 mm max height, 1.0 × 0.6 mm footprint - enables placement beneath connectors or in space-constrained IoT sensor modules |
| Automated assembly compatibility | J-STD-020 Level 1 moisture sensitivity and NiPdAu terminations - eliminates pre-bake requirements and ensures reliable reflow soldering yield |
Applications
| Power Supply Feedback | ESD-Protected I/O Clamping |
|---|---|
Use Scenario: Regulating output voltage in isolated DC-DC converters using optocoupler feedback networks. IC Role / Device Role / Timing Role: Zener reference providing stable 15 V threshold to drive optocoupler LED in secondary-side regulation loop. Use Value: ±2% VZ tolerance maintains output accuracy within ±1.5% across line/load conditions without trimming. | Use Scenario: Protecting microcontroller GPIO pins against transient surges in industrial HMI panels. IC Role / Device Role / Timing Role: Bidirectional clamping diode shunting ESD pulses (>8 kV contact) to ground while blocking normal 3.3/5 V logic signals. Use Value: 100 pF capacitance avoids signal degradation on 10 MHz digital lines; 0.05 µA leakage preserves sleep-mode current budget. |
| Low-Power Sensor Reference | Overvoltage Detection Circuit |
Use Scenario: Providing excitation voltage for resistive bridge sensors in battery-operated condition monitoring devices. IC Role / Device Role / Timing Role: Precision 15 V reference source for ratiometric ADC measurement chains with low quiescent current draw. Use Value: 250 mW rating allows brief 15 V bursts during sensor wake-up; 500 °C/W RθJA permits operation at 85 °C ambient without derating. | Use Scenario: Detecting input overvoltage events in 12 V automotive accessory modules before LDO activation. IC Role / Device Role / Timing Role: Threshold detector triggering comparator when input exceeds 15.3 V, signaling fault condition to MCU. Use Value: 15 Ω ZZT ensures sharp turn-on knee for repeatable trip point; cathode-bar marking simplifies automated optical inspection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5245BS-7-F | Same 15 V nominal, ±5% tolerance (vs. ±2%), SOD-523 package, 200 mW rating | Higher voltage drift reduces accuracy in precision references; smaller package limits thermal margin | Select only if cost sensitivity outweighs regulation stability and thermal robustness |
| BZX84-C15-7-F | 15 V nominal, ±5% tolerance, SOT-23 package, 300 mW rating, higher ZZT (30 Ω) | Lower accuracy and higher impedance degrade regulation in feedback loops; larger footprint consumes more board area | Prefer where higher power handling is needed and ±5% tolerance is acceptable |
Compared with MMBZ5245BS-7-F and BZX84-C15-7-F, the BZT52B15LP-7B delivers superior voltage accuracy and lower dynamic impedance in a smaller, thermally optimized DFN package-making it optimal for space-constrained, precision-regulated systems requiring long-term stability.
Availability
BZT52B15LP-7B is available at Aetrix Electronics and suitable for power supply feedback networks, ESD-protected I/O interfaces, and low-power sensor reference circuits requiring stable component supply and consistent parametric performance across production lots.
Supply support for BZT52B15LP-7B 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, industry-qualified components for automotive, industrial, and consumer markets.
The BZT52 series belongs to Diodes' precision Zener diode product line, engineered specifically for voltage regulation, reference, and overvoltage protection in miniaturized, high-efficiency power and signal conditioning applications.
FAQ
What is the maximum reverse voltage this Zener diode can withstand before breakdown?
The BZT52B15LP-7B has a nominal zener voltage of 15.0 V with a guaranteed range of 14.7–15.3 V at 5 mA test current. It begins controlled reverse conduction within this band and is not rated for sustained operation above 15.3 V without exceeding power limits or risking parametric shift.
Does this part require a heatsink in typical PCB applications?
No heatsink is required. With a thermal resistance of 500 °C/W and a 250 mW power rating, the junction temperature rise remains within safe limits (≤125 °C) on standard FR-4 boards using Diodes' recommended pad layout-even at full rated power and 25 °C ambient.
How does the cathode bar marking align with the DFN1006-2 package outline?
The cathode is marked by a visible bar on the top surface of the DFN1006-2 package, aligned with the terminal on the right side when viewing the marking side with the bar oriented horizontally. Pin 1 (cathode) corresponds to the right pad in the bottom-view schematic per DS36252 Rev. 1–2.
Is this Zener diode suitable for use in automotive-grade designs?
Yes - it operates across –65 °C to +150 °C, is AEC-Q200 stress-tested per Diodes Incorporated's qualification program, and features halogen-free, RoHS-compliant construction. However, final automotive qualification requires system-level validation per OEM requirements.
BZT52B15LP-7B 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:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 10.5 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
BZT52B15LP-7B FAQ
1.How can I place an order for BZT52B15LP-7B through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52B15LP-7B 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 BZT52B15LP-7B reliable?
The price and inventory of BZT52B15LP-7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52B15LP-7B is usually 5 days.
3.What payment methods are accepted for BZT52B15LP-7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52B15LP-7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52B15LP-7B?
BZT52B15LP-7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52B15LP-7B 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 BZT52B15LP-7B?
For technical support, including BZT52B15LP-7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52B15LP-7B requirements.
6.How does Aetrix verify that BZT52B15LP-7B is sourced from the original manufacturer or authorized distributors?
All BZT52B15LP-7B 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 BZT52B15LP-7B meets industry standards.
7.What is the process for return or replacement of BZT52B15LP-7B?
All BZT52B15LP-7B units undergo pre-shipment inspection (PSI). If there is an issue with BZT52B15LP-7B, 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 BZT52B15LP-7B part is unused and in its original packaging.
Return procedure for BZT52B15LP-7B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52B15LP-7B Tags
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