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Diodes Incorporated BZT52C6V8T-7
- Part No.:
- BZT52C6V8T-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZT52C6V8T-7.pdf
- Description:
- DIODE ZENER 6.8V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:16,280
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Product details
Overview
BZT52C6V8T-7 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 is used for precision voltage reference and overvoltage protection in low-power analog sensor interfaces.
For engineers reviewing the BZT52C6V8T-7 datasheet, BZT52C6V8T-7 pinout, BZT52C6V8T-7 application, or BZT52C6V8T-7 equivalent, this page delivers verified package mapping (SOD523), thermal resistance (417 °C/W), power dissipation (300 mW), cathode band polarity, and JEDEC-qualified reliability data - all confirmed from Diodes' official DS30502 Rev. 18-2.
Technical Context
This Zener diode functions as a two-terminal voltage regulator in reverse-biased mode, maintaining stable output voltage across load and supply variations. Its 6.8 V nominal breakdown is specified at 5 mA (IZT), with low dynamic impedance (15 Ω) ensuring minimal voltage deviation under small-signal perturbations.
The device uses a planar epitaxial construction in a SOD523 package with matte tin–annealed Alloy 42 leads, rated for 300 mW power dissipation at 25 °C and derated linearly above 25 °C per the published curve (417 °C/W RθJA). It meets JEDEC high-reliability standards and is RoHS 3 / "Green" compliant.
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 stable regulation point for reference circuits |
| Dynamic Impedance (ZZT) | 15 Ω at 1 kHz and 5 mA - ensures <15 mV output shift per 1 mA load change |
| Power Dissipation (PD) | 300 mW at 25 °C - supports compact PCB layout without forced cooling |
| Thermal Resistance (RθJA) | 417 °C/W - limits junction rise to ~125 °C at full power on standard FR-4 |
| Reverse Leakage (IR) | 2.0 µA max at VR = 4.0 V - preserves low quiescent current in battery-powered systems |
| Temperature Coefficient | +1.2 mV/°C - enables predictable drift compensation in temperature-stable references |
| Operating Temp Range | –55 °C to +150 °C - qualified for under-hood automotive and industrial control environments |
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), moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node; forms reference return path |
| Cathode | Zener breakdown terminal / voltage regulation output | Marked with cathode band; supplies regulated 6.8 V when reverse biased above breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SOD523 package | Enables placement in space-constrained layouts (e.g., wearables, IoT sensors) without sacrificing thermal performance |
| JEDEC-qualified high reliability | Validated per AEC-Q stress protocols - suitable for automotive ECUs and industrial controllers requiring long-term stability |
| Halogen- and antimony-free "Green" construction | Meets RoHS 3 (2015/863/EU) with <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - supports eco-compliant manufacturing |
| Cathode band polarity marking | Ensures unambiguous orientation during automated placement and visual inspection on production lines |
Applications
| Industrial Sensor Signal Conditioning | Automotive Body Control Module (BCM) Reference |
|---|---|
Use Scenario: Stabilizing ADC reference voltage for 4–20 mA loop-powered pressure transmitters operating in ambient temperatures up to 85 °C. IC Role / Device Role / Timing Role: Zener diode providing fixed 6.8 V reference to op-amp biasing network and SAR ADC reference input. Use Value: Low 15 Ω impedance minimizes reference error under varying sensor load; ±1.2 mV/°C TC allows accurate temperature-compensated calibration. | Use Scenario: Supplying regulated bias voltage to LIN transceiver and microcontroller reset supervisor in door module electronics. IC Role / Device Role / Timing Role: Voltage clamp and reference source for undervoltage detection circuitry tied to 12 V vehicle battery rail. Use Value: –55 °C to +150 °C rating ensures operation across cold cranking and under-hood thermal extremes; 2.0 µA IR prevents battery drain during sleep mode. |
| USB-C Power Delivery Monitor Circuit | Medical Patient Monitor Front-End Protection |
Use Scenario: Protecting voltage monitoring IC inputs from transient overvoltage during hot-plug events on USB-C VBUS line. IC Role / Device Role / Timing Role: Shunt clamping element limiting sensed voltage to 6.8 V before it reaches ADC or comparator input. Use Value: 300 mW PD and fast response enable robust clamping of 10–100 ns spikes without latch-up; SOD523 footprint fits tight routing near connector. | Use Scenario: Providing ESD-safe voltage reference for isolated analog front-end amplifiers measuring biopotential signals (ECG, EEG). IC Role / Device Role / Timing Role: Precision DC reference source for instrumentation amplifier offset trimming and ADC reference buffer. Use Value: Low 2.0 µA leakage avoids signal path contamination; RoHS 3/Green compliance satisfies IEC 60601-1 medical device material restrictions. |
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 Zener, but 100 mW PD and 600 Ω ZZT - higher impedance, lower power handling | Limited to ultra-low-power biasing; unsuitable for clamping or moderate-current reference loads | Select only if board space is identical and thermal budget is <100 mW |
| BZX84-C6V8 | 6.8 V Zener in SOT-23 package; 350 mW PD but larger footprint and 40 Ω ZZT | Better power handling but incompatible with SOD523 land pattern; requires PCB redesign | Choose when higher surge tolerance is needed and layout revision is acceptable |
Compared with MMBZ5235BS-7-F and BZX84-C6V8, the BZT52C6V8T-7 uniquely balances low impedance (15 Ω), medium power (300 mW), and ultra-compact SOD523 packaging - making it optimal for space-constrained, thermally sensitive, precision reference designs where both accuracy and reliability are required.
Availability
BZT52C6V8T-7 is available at Aetrix Electronics and suitable for industrial sensor conditioning, automotive body control modules, and USB-C power delivery monitor circuits requiring stable component supply, JEDEC-qualified reliability, and RoHS 3 compliance.
Supply support for BZT52C6V8T-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 BZT52 series belongs to Diodes' precision Zener diode product line, engineered for stable voltage reference and overvoltage protection in space- and power-constrained applications across automotive, industrial, and consumer electronics.
FAQ
What is the maximum reverse voltage (VR) at which leakage current remains ≤2.0 µA?
The BZT52C6V8T-7 exhibits ≤2.0 µA reverse leakage current at VR = 4.0 V, as specified in the Electrical Characteristics table. This value is measured at 25 °C and defines the upper limit of reverse bias where leakage stays within low-power design thresholds - critical for battery-operated systems where standby current must be minimized.
Is the BZT52C6V8T-7 suitable for automotive applications?
Yes - the BZT52C6V8T-7 is JEDEC-qualified for high reliability and manufactured in IATF 16949-certified facilities. While the standard part is not AEC-Q200 qualified, Diodes offers automotive-grade variants (e.g., BZT52C6V8TQ-7-F) with PPAP documentation and extended testing. For non-safety-critical automotive subsystems like lighting or infotainment, the standard part is widely deployed.
How does the SOD523 package affect thermal performance compared to SOT-23?
The SOD523 package has higher thermal resistance (RθJA = 417 °C/W) than typical SOT-23 Zeners (~300 °C/W), due to its smaller pad area and reduced copper exposure. This limits continuous power dissipation to 300 mW at 25 °C and requires careful PCB layout - such as using thermal vias and enlarged copper pours - to maintain junction temperature below 150 °C in high-ambient environments.
Can the BZT52C6V8T-7 be used as a substitute for the BZT52C6V2T-7 in a 6.2 V reference design?
No - the BZT52C6V8T-7 has a nominal Zener voltage of 6.8 V (6.4–7.2 V range), while the BZT52C6V2T-7 is 6.2 V (5.8–6.6 V). Substituting introduces a systematic 0.6 V offset, degrading accuracy in precision references. The devices share identical package and thermal specs, but voltage mismatch makes them non-interchangeable without circuit recalibration or resistor network adjustment.
BZT52C6V8T-7 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:
- ±6%
- 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
BZT52C6V8T-7 FAQ
1.How can I place an order for BZT52C6V8T-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C6V8T-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 BZT52C6V8T-7 reliable?
The price and inventory of BZT52C6V8T-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C6V8T-7 is usually 5 days.
3.What payment methods are accepted for BZT52C6V8T-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C6V8T-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C6V8T-7?
BZT52C6V8T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C6V8T-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 BZT52C6V8T-7?
For technical support, including BZT52C6V8T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C6V8T-7 requirements.
6.How does Aetrix verify that BZT52C6V8T-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C6V8T-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 BZT52C6V8T-7 meets industry standards.
7.What is the process for return or replacement of BZT52C6V8T-7?
All BZT52C6V8T-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C6V8T-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 BZT52C6V8T-7 part is unused and in its original packaging.
Return procedure for BZT52C6V8T-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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