Diodes Incorporated BZT52C6V8LPQ-7
- Part No.:
- BZT52C6V8LPQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
BZT52C6V8LPQ-7.pdf
- Description:
- DIODE ZENER 6.8V 250MW 2DFN
- Quantity:
- Payment:

- Shipping:

Inventory:3,708
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Product details
Overview
BZT52C6V8LPQ from Diodes Incorporated is a surface-mount Zener diode with nominal 6.8 V zener voltage, 5 mA test current, 15 Ω maximum zener impedance at 1 kHz, 250 mW power dissipation, and AEC-Q101 qualification for automotive use in voltage regulation and overvoltage protection circuits.
For engineers reviewing the BZT52C6V8LPQ datasheet, BZT52C6V8LPQ pinout, BZT52C6V8LPQ application, or BZT52C6V8LPQ equivalent, key selection criteria include zener voltage tolerance (±5.9%), thermal resistance (500 °C/W), cathode-marked DFN1006-2 package, and compliance with IATF16949 manufacturing standards.
Technical Context
This device operates as a precision voltage reference and clamp in low-power analog and digital supply rails. It maintains stable reverse breakdown at 6.8 V ±0.4 V under 5 mA test current, with low dynamic impedance (15 Ω) ensuring minimal voltage deviation during transient load changes.
Designed for automotive-grade reliability, it features NiPdAu-plated terminals, moisture sensitivity level 1, and operates across –65 °C to +150 °C. Its 0.001 g mass and X1-DFN1006-2 footprint support high-density PCB layouts in space-constrained modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.8 V nominal, 6.4–7.2 V range at 5 mA - defines clamping threshold for 5 V or 6 V rail protection |
| Power Dissipation (PD) | 250 mW at 25 °C - limits continuous dissipation without heatsinking on standard FR-4 |
| Zener Impedance (ZZT) | 15 Ω max at 1 kHz - ensures <100 mV output variation for ±1 mA current shift |
| Reverse Current (IR) | 2 µA max at 4.0 V - guarantees low leakage in standby mode of battery-powered systems |
| Forward Voltage (VF) | 0.9 V at 10 mA - enables use as low-drop rectifier or logic-level clamp |
| Thermal Resistance (RθJA) | 500 °C/W - requires derating above 25 °C ambient; 125 mW usable at 75 °C |
Pinout & Package
Package: X1-DFN1006-2 - ultra-compact 1.0 mm × 0.6 mm leadless plastic package with exposed copper pad for thermal conduction and solderability per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 (Anode) | Anode connection | Connected to lower-potential node; unmarked side in top view |
| Terminal 2 (Cathode) | Cathode connection | Bar-marked side in top view; connected to regulated or protected node |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTGB, TCT, and HTRB |
| IATF16949 certified manufacturing | Ensures consistent lot-to-lot performance and traceable process control for Tier-1 suppliers |
| Halogen- and antimony-free "Green" compound | Meets RoHS 3 (2015/863/EU) with Br+Cl ≤1500 ppm and Sb ≤1000 ppm |
| Moisture Sensitivity Level 1 | Zero bake requirement before reflow; compatible with standard SMT assembly lines |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Voltage clamping on LIN bus transceiver supply rail subject to load dump transients. IC Role / Device Role / Timing Role: Zener clamp protecting 5 V LDO input from >12 V spikes. Use Value: 6.8 V breakdown prevents LDO overvoltage failure while 15 Ω ZZT limits clamp voltage rise to <7.1 V at 100 mA surge. | Use Scenario: Reference stabilization for 12-bit ADC measuring thermistor voltage in HVAC control unit. IC Role / Device Role / Timing Role: Low-noise 6.8 V shunt reference replacing larger TO-92 part. Use Value: 2 µA max reverse leakage at 4 V ensures <1 LSB error contribution from reference drift over temperature. |
| Consumer USB-C Power Delivery Monitor | Medical Wearable Battery Management |
Use Scenario: Overvoltage detection on CC line during PD negotiation handshake. IC Role / Device Role / Timing Role: Fast-response clamp limiting CC pin to safe 6.8 V during fault conditions. Use Value: DFN1006-2 footprint enables placement within 2 mm of connector, minimizing parasitic inductance for sub-100 ns transient response. | Use Scenario: Cell voltage monitoring circuit in rechargeable Li-ion patch monitor. IC Role / Device Role / Timing Role: Precision zener reference for coulomb counter IC biasing. Use Value: ±5.9% VZ tolerance and –65 °C to +150 °C operation ensure accuracy across body-worn thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5235BS-7-F | Same 6.8 V nominal, but 350 mW PD, 30 Ω ZZT, SOT-323 package | Larger footprint; higher power but higher impedance degrades regulation precision | Prefer when board space allows and higher surge handling is needed over tight voltage tolerance |
| BZX384-B6V8,115 | 6.8 V nominal, 250 mW, 15 Ω ZZT, SOD-323 package, AEC-Q101 not claimed | No automotive qualification; different marking and thermal profile | Select only for non-automotive industrial designs where AEC-Q101 is not mandated |
Compared with MMBZ5235BS-7-F and BZX384-B6V8,115, the BZT52C6V8LPQ uniquely combines AEC-Q101 qualification, DFN1006-2 miniaturization, and 15 Ω low-impedance regulation-making it optimal for space- and reliability-critical automotive modules.
Availability
BZT52C6V8LPQ is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, USB-C power delivery monitors, and medical wearable battery management systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZT52C6V8LPQ 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' automotive-qualified Zener portfolio, engineered specifically for voltage regulation, ESD protection, and reference stability in harsh-environment vehicle subsystems.
FAQ
What is the maximum allowable reverse voltage before breakdown?
The BZT52C6V8LPQ exhibits sharp reverse breakdown at 6.8 V nominal, with guaranteed operation between 6.4 V and 7.2 V at 5 mA test current. Below 4.0 V, reverse current remains ≤2 µA - confirming no significant conduction occurs prior to the specified zener region.
Is this diode suitable for bidirectional ESD protection?
No - the BZT52C6V8LPQ is a unidirectional Zener diode optimized for forward conduction and reverse breakdown clamping. For bidirectional ESD protection, purpose-built TVS diodes such as the D3V3M1U2SOT-7 offer symmetric ±3.3 V clamping and defined IEC 61000-4-2 performance.
How does the DFN1006-2 package affect thermal performance?
The X1-DFN1006-2 package delivers RθJA = 500 °C/W on standard FR-4 with minimum pad layout. Its exposed copper pad enables direct thermal coupling to internal ground planes, improving heat dissipation by up to 30% versus non-exposed equivalents when properly implemented per Diodes' suggested pad layout.
Can this part replace through-hole Zeners like 1N4735A in new designs?
Yes - with careful layout adaptation. The BZT52C6V8LPQ matches the 1N4735A's 6.8 V rating and 250 mW rating but in a 1.0 mm × 0.6 mm footprint. Designers must verify PCB thermal relief, reflow profile compatibility, and ensure cathode orientation aligns with schematic symbol polarity due to its top-view bar marking.
BZT52C6V8LPQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 0402 (1006 Metric)
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.8 V
- Tolerance:
- ±5.88%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 4 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
BZT52C6V8LPQ-7 FAQ
1.How can I place an order for BZT52C6V8LPQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C6V8LPQ-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 BZT52C6V8LPQ-7 reliable?
The price and inventory of BZT52C6V8LPQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C6V8LPQ-7 is usually 5 days.
3.What payment methods are accepted for BZT52C6V8LPQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C6V8LPQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C6V8LPQ-7?
BZT52C6V8LPQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C6V8LPQ-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 BZT52C6V8LPQ-7?
For technical support, including BZT52C6V8LPQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C6V8LPQ-7 requirements.
6.How does Aetrix verify that BZT52C6V8LPQ-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C6V8LPQ-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 BZT52C6V8LPQ-7 meets industry standards.
7.What is the process for return or replacement of BZT52C6V8LPQ-7?
All BZT52C6V8LPQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C6V8LPQ-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 BZT52C6V8LPQ-7 part is unused and in its original packaging.
Return procedure for BZT52C6V8LPQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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