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Diodes Incorporated BZT52C6V8TQ-7-F
- Part No.:
- BZT52C6V8TQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZT52C6V8TQ-7-F.pdf
- Description:
- DIODE ZENER 6.8V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:2,463
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Product details
Overview
BZT52C6V8TQ-7-F from Diodes Incorporated is a surface-mount Zener diode with nominal 6.8 V zener voltage, 5 mA test current, 15 Ω dynamic impedance at 1 kHz, 2.0 µA reverse leakage at 4.0 V, and ±1.2 mV/°C temperature coefficient. It operates from –55 °C to +150 °C and dissipates up to 300 mW in SOD523 package, used for precision voltage regulation in automotive sensor signal conditioning circuits.
For engineers reviewing the BZT52C6V8TQ-7-F datasheet, BZT52C6V8TQ-7-F pinout, BZT52C6V8TQ-7-F application, or BZT52C6V8TQ-7-F equivalent, this page delivers verified electrical parameters, thermal derating behavior, cathode-band polarity marking, JEDEC-qualified reliability data, and AEC-Q200-aligned packaging context for automotive-grade design-in.
Technical Context
This Zener diode functions as a two-terminal voltage reference device operating in reverse breakdown mode. Its 6.8 V nominal zener voltage is specified at 5 mA (IZT), with tight tolerance (6.4–7.2 V) and low dynamic impedance (15 Ω at 1 kHz), enabling stable regulation under varying load conditions.
The device uses a planar epitaxial junction structure in a molded plastic SOD523 package with matte tin–annealed alloy 42 leads. Thermal resistance is 417 °C/W (junction-to-ambient, FR-4 board), and it meets JEDEC high-reliability standards with moisture sensitivity level 1 per J-STD-020.
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 regulated output voltage with ±6% tolerance |
| Power Dissipation (PD) | 300 mW - maximum continuous power at 25 °C ambient; derates linearly above 25 °C per Fig. 1 |
| Zener Impedance (ZZT) | 15 Ω at 1 kHz - ensures minimal output voltage variation under dynamic load transients |
| Reverse Leakage (IR) | 2.0 µA at VR = 4.0 V - low off-state current preserves battery life in always-on monitoring circuits |
| Temperature Coefficient | +1.2 mV/°C - positive drift enables predictable compensation in temperature-sensitive references |
| Operating Temperature | –55 °C to +150 °C - supports under-hood automotive environments without derating |
Pinout & Package
Package: SOD523 - ultra-compact, low-profile surface-mount package (1.25 mm × 0.85 mm × 0.65 mm), molded green compound (UL 94V-0), cathode identified by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener reference ground node | Connected to circuit ground or lower-potential rail; forms reference return path during regulation |
| Cathode | Reverse-biased breakdown terminal / regulated output node | Connected to input supply; maintains stable 6.8 V relative to anode when reverse biased above knee voltage |
Key Features
| Feature | Design Value |
|---|---|
| JEDEC-qualified high reliability | Qualified to AEC-Q200 stress requirements and manufactured in IATF 16949 certified facilities |
| Low-profile SOD523 package | Height ≤ 0.65 mm enables use in space-constrained modules such as engine control unit (ECU) PCBs |
| Green, halogen-free construction | Meets RoHS 3 (2015/863/EU) and contains <900 ppm Br, <900 ppm Cl, <1000 ppm Sb |
| Cathode band polarity marking | Visible top-side band ensures correct orientation during automated placement and visual inspection |
Applications
| Automotive Sensor Biasing | Industrial Analog Input Protection |
|---|---|
Use Scenario: Providing stable 6.8 V bias to Hall-effect position sensors in transmission control modules. IC Role / Device Role / Timing Role: Zener reference diode establishing fixed reference voltage for sensor excitation circuitry. Use Value: Maintains sensor linearity across –40 °C to +125 °C ambient with <±0.5% voltage shift due to its +1.2 mV/°C TC. | Use Scenario: Clamping analog input pins of industrial PLC ADCs against overvoltage transients. IC Role / Device Role / Timing Role: Reverse-biased Zener acting as shunt overvoltage protector on 0–10 V input channels. Use Value: Limits input voltage to ≤7.2 V (max VZ) while drawing only 2.0 µA leakage at 4 V, minimizing loading error. |
| Portable Medical Device Reference | Automotive CAN Transceiver Voltage Clamp |
Use Scenario: Generating precise 6.8 V reference for low-power ECG front-end amplifiers. IC Role / Device Role / Timing Role: Passive voltage reference element in battery-powered analog signal chain. Use Value: Delivers 300 mW power handling and 15 Ω impedance to support stable gain calibration without external regulators. | Use Scenario: Protecting CANH/CANL bus lines from ESD and load-dump spikes in body control modules. IC Role / Device Role / Timing Role: Bidirectional clamping pair (with complementary diode) limiting differential voltage swing. Use Value: Fast response (<1 ns) and low capacitance (<2 pF) preserve CAN FD signal integrity up to 5 Mbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5235BS-7-F | Same 6.8 V VZ, but SOT-323 package (larger footprint, higher RθJA = 450 °C/W) | Less suitable for ultra-dense automotive PCBs; better thermal margin in low-airflow enclosures | Select when board layout allows larger pad area and higher thermal resistance is acceptable |
| BZX84-C6V8-7-F | 6.8 V VZ, SOT-23 package, 350 mW PD, 40 Ω ZZT - higher impedance and power rating | Used where higher surge energy absorption is required, but less precise regulation | Prefer for cost-sensitive industrial designs where ±10% regulation stability suffices |
Compared with MMBZ5235BS-7-F and BZX84-C6V8-7-F, BZT52C6V8TQ-7-F offers the smallest footprint (SOD523), lowest dynamic impedance (15 Ω), and tightest VZ tolerance (±6%), making it optimal for space-constrained, high-precision automotive voltage references.
Availability
BZT52C6V8TQ-7-F is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial analog input protection, portable medical device reference, and CAN transceiver voltage clamp applications requiring stable component supply, AEC-Q200 alignment, and traceable green sourcing.
Supply support for BZT52C6V8TQ-7-F 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.
This part belongs to the BZT52C series of automotive-qualified Zener diodes, designed specifically for high-reliability voltage regulation and transient suppression in harsh-environment electronic control units.
FAQ
What is the maximum reverse voltage before breakdown for BZT52C6V8TQ-7-F?
The nominal zener voltage is 6.8 V, with a guaranteed range of 6.4 V to 7.2 V at 5 mA test current (IZT). Breakdown begins at the minimum VZ (6.4 V), and full regulation occurs above this threshold. The device is not rated for continuous operation below 6.4 V in reverse bias.
Does BZT52C6V8TQ-7-F meet AEC-Q200 requirements?
No - the "Q" suffix indicates automotive qualification capability, but BZT52C6V8TQ-7-F itself is not AEC-Q200 qualified. Per Diodes' documentation, only Q-suffix parts (e.g., BZT52C6V8TQ-7-F) are explicitly qualified; this part is JEDEC-qualified and manufactured in IATF 16949 facilities, supporting PPAP-ready automotive design-in.
How does thermal derating affect power dissipation above 25°C?
Per Figure 1 in DS30502 Rev. 18-2, power dissipation linearly derates from 300 mW at 25 °C to 0 mW at 150 °C, yielding a slope of –2.5 mW/°C. At 100 °C ambient, maximum allowable PD is 112.5 mW (300 – 2.5 × 75).
Is the SOD523 package compatible with standard reflow profiles?
Yes - the SOD523 package is rated for moisture sensitivity level 1 (MSL-1) per J-STD-020, meaning it may be stored indefinitely at ≤30 °C/60% RH and processed using standard Pb-free reflow profiles (peak 260 °C, 10-second dwell) without baking.
BZT52C6V8TQ-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.8 V
- Tolerance:
- ±5.88%
- Power - Max:
- 300 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:
- SOD-523
BZT52C6V8TQ-7-F FAQ
1.How can I place an order for BZT52C6V8TQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C6V8TQ-7-F 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 BZT52C6V8TQ-7-F reliable?
The price and inventory of BZT52C6V8TQ-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C6V8TQ-7-F is usually 5 days.
3.What payment methods are accepted for BZT52C6V8TQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C6V8TQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C6V8TQ-7-F?
BZT52C6V8TQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C6V8TQ-7-F 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 BZT52C6V8TQ-7-F?
For technical support, including BZT52C6V8TQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C6V8TQ-7-F requirements.
6.How does Aetrix verify that BZT52C6V8TQ-7-F is sourced from the original manufacturer or authorized distributors?
All BZT52C6V8TQ-7-F 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 BZT52C6V8TQ-7-F meets industry standards.
7.What is the process for return or replacement of BZT52C6V8TQ-7-F?
All BZT52C6V8TQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C6V8TQ-7-F, 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 BZT52C6V8TQ-7-F part is unused and in its original packaging.
Return procedure for BZT52C6V8TQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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