Diodes Incorporated BZT52C8V2LP-7

Overview

BZT52C8V2LP-7 from Diodes Incorporated is a surface-mount Zener diode with nominal 8.2 V zener voltage, 5 mA test current, 15 Ω maximum zener impedance at I_ZT, 0.7 µA maximum reverse leakage at 5.0 V, and ±5% voltage tolerance. It operates in DFN1006-2 package, rated for 250 mW power dissipation and -65°C to +150°C temperature range, and is AEC-Q101 qualified for automotive electronics.

For engineers reviewing the BZT52C8V2LP-7 datasheet, BZT52C8V2LP-7 pinout, BZT52C8V2LP-7 application, or BZT52C8V2LP-7 equivalent, key selection criteria include zener voltage accuracy (7.7–8.7 V), low dynamic impedance (15 Ω @ 5 mA), cathode-marked DFN1006-2 footprint compatibility, and AEC-Q101 reliability validation for voltage regulation in space-constrained automotive subsystems.

Technical Context

This Zener diode functions as a precision shunt voltage reference and overvoltage clamp in low-power analog and digital circuits. Its 8.2 V breakdown is specified at 5 mA test current with ±5% tolerance and a positive temperature coefficient of +3.2 to +6.2 mV/°C, enabling stable regulation across industrial temperature ranges.

The device uses NiPdAu-plated copper leadframe terminals, achieves 500 °C/W junction-to-ambient thermal resistance on FR-4 PCBs with minimum pad layout, and meets J-STD-020C Level 1 moisture sensitivity-supporting standard reflow assembly without baking.

Key Specifications

Pinout & Package

DFN1006-2 ultra-small leadless package with two terminals: anode and cathode. Cathode identified by dot marking on top surface. No internal die bonding wire; terminals are formed from single copper leadframe with NiPdAu plating.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener diode applications.

Compared with MMBZ5231BS-7-F and BZX384-B8V2,115, BZT52C8V2LP-7 offers the smallest footprint, lowest thermal resistance (500 °C/W), and only AEC-Q101-qualified option-making it optimal for next-gen automotive and space-constrained industrial designs where reliability and density are critical.

Availability

BZT52C8V2LP-7 is available at Aetrix Electronics and suitable for automotive ECU monitoring, industrial sensor excitation, USB-C port protection, and smart meter voltage supervision requiring stable component supply and full traceability.

Supply support for BZT52C8V2LP-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 North America.

The BZT52C series belongs to Diodes' AEC-Q101-qualified Zener diode portfolio, engineered specifically for voltage regulation and transient suppression in automotive and industrial environments where small size, reliability, and consistent parametric performance are essential.

FAQ

What is the maximum power dissipation for BZT52C8V2LP-7 at 85°C ambient?

At T_A = 85°C, derated power dissipation is 150 mW. This is calculated using the 250 mW rating at 25°C and 500 °C/W thermal resistance: P_D(85°C) = 250 mW × (1 − (85 − 25)/500) = 150 mW. Operation above this limit risks thermal runaway in standard FR-4 layouts.

Is the cathode terminal marked on the BZT52C8V2LP-7 package?

Yes-the cathode is marked with a visible dot on the top surface of the DFN1006-2 package, aligned with the terminal on the right side in the top-view orientation shown in the datasheet. This marking is laser-etched and verified per JEDEC standards for automated optical inspection.

Does BZT52C8V2LP-7 support reflow soldering per JEDEC J-STD-020?

Yes-it is rated for Moisture Sensitivity Level 1 per J-STD-020C, meaning it can undergo unlimited floor life and standard Pb-free reflow profiles (peak 260°C) without baking. The NiPdAu terminal finish ensures wetting reliability across multiple reflow cycles.

How does the temperature coefficient affect regulation accuracy over -40°C to +125°C?

With α_VZ = +3.2 to +6.2 mV/°C, the zener voltage shifts +0.51 to +0.99 V across that 165°C span. At 125°C, V_Z ranges from ~8.71 V to ~9.19 V-still within functional margin for most 8.2 V reference applications when combined with system-level calibration or tolerance budgeting.