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Diodes Incorporated BZT52HC6V8WFQ-7
- Part No.:
- BZT52HC6V8WFQ-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52HC6V8WFQ-7.pdf
- Description:
- DIODE ZENER 6.8V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:8,837
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Product details
Overview
BZT52HC6V8WFQ from Diodes Incorporated is an AEC-Q101 qualified surface-mount Zener diode in SOD123F package, providing precise 6.4–7.2 V nominal zener voltage at 5 mA test current, 8 Ω maximum zener impedance, and ±4.5 mV/°C temperature coefficient-designed for voltage regulation and overvoltage protection in automotive power rails and sensor supply circuits.
For engineers reviewing the BZT52HC6V8WFQ datasheet, BZT52HC6V8WFQ pinout, BZT52HC6V8WFQ application, or BZT52HC6V8WFQ equivalent, key selection factors include its 375 mW FR-4 pad-limited power rating, 830 mW cathode-pad-enhanced dissipation, 200 pF capacitance at 1 MHz, and 4 µA maximum reverse leakage at 2 V-critical for low-noise analog reference and ESD-tolerant I/O clamping.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across a load under varying current conditions. Its 6.4–7.2 V zener range, 8 Ω dynamic impedance at 5 mA, and +1.2 to +4.5 mV/°C positive temperature coefficient enable predictable regulation in temperature-varying environments.
The device uses a planar epitaxial construction with cathode band polarity marking and matte tin–annealed copper alloy terminals. It achieves 150 °C/W thermal resistance when mounted with a 1 cm² cathode pad, supporting reliable operation from –65 °C to +150 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.4–7.2 V at IZT = 5 mA - defines regulated output voltage window under standard test conditions |
| Zener Impedance (ZZT) | 8 Ω max at IZT = 5 mA - ensures minimal voltage deviation during load current transients |
| Temperature Coefficient (TC) | +1.2 to +4.5 mV/°C at IZT = 5 mA - quantifies voltage drift with temperature, enabling compensation design |
| Power Dissipation (PD) | 830 mW with 1 cm² cathode pad - sets maximum continuous power handling under enhanced thermal layout |
| Reverse Leakage (IR) | 4 µA max at VR = 2 V - guarantees low standby current in clamping or bias applications |
| Total Capacitance (CT) | 200 pF max at f = 1 MHz, VR = 0 V - limits high-frequency signal coupling in RF-adjacent circuits |
Pinout & Package
Package: SOD123F - flat-lead, low-profile surface-mount package with molded green plastic body (UL 94V-0), 0.015 g mass, and cathode band polarity indicator.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference | Connected to lower-potential node; reverse-biased operation requires cathode at higher potential |
| Cathode | Zener breakdown terminal / voltage regulation output | Marked by band; supplies regulated voltage to load when reverse biased above VZ |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47 |
| SOD123F low-profile package | Height ≤ 0.9 mm (max), footprint 2.7 × 1.8 mm - enables dense PCB layouts in space-constrained modules |
| Green compound & lead-free finish | Halogen- and antimony-free molding compound (<900 ppm Br/Cl, <1000 ppm Sb); matte tin annealed terminals |
| IATF 16949 manufacturing | Produced in certified facilities with PPAP documentation support for Tier-1 automotive supply chain compliance |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating 5 V microcontroller I/O supply rail subject to battery voltage fluctuations (9–16 V). IC Role / Device Role / Timing Role: Zener shunt regulator maintaining stable reference for ADC input buffers and GPIO clamp networks. Use Value: 8 Ω impedance and 4.5 mV/°C TC allow ±25 mV regulation tolerance over –40 to +125 °C operating range. |
Use Scenario: Clamping 0–10 V analog sensor outputs against ESD and transient overvoltage events. IC Role / Device Role / Timing Role: Bidirectional transient suppressor placed between sensor output and MCU ADC input. Use Value: 200 pF capacitance avoids signal distortion up to 100 kHz; 4 µA leakage preserves measurement accuracy. |
| Automotive Infotainment Power Sequencing | Medical Diagnostic Equipment Reference |
Use Scenario: Providing clean 6.8 V bias for CAN transceiver VIO pins during cold-crank conditions. IC Role / Device Role / Timing Role: Precision voltage reference stabilizing interface logic levels across wide input voltage swings. Use Value: 6.4–7.2 V zener range accommodates ±5% tolerance while maintaining functional margin above 6.5 V threshold. |
Use Scenario: Generating stable 6.8 V reference for precision op-amp biasing in portable ECG front-end circuits. IC Role / Device Role / Timing Role: Low-drift voltage source feeding instrumentation amplifier gain-setting network. Use Value: +1.2 to +4.5 mV/°C TC enables predictable offset correction; 830 mW rating supports 24/7 operation with minimal derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5235BS-7-F (Diodes Inc.) | Same SOD123F package; 6.2–6.8 V range, 10 Ω ZZT, 150 pF CT | Lower capacitance suits higher-frequency clamping but tighter VZ tolerance reduces margin for aging drift | Select when lower parasitic capacitance is prioritized over long-term voltage stability |
| BZX84-C6V8 (Nexperia) | SOT23 package; 6.4–7.2 V range, 40 Ω ZZT, 200 pF CT, 100 mW PD | Higher impedance and lower power rating limit use to low-current biasing only | Choose only for non-automotive, low-power designs where board space allows SOT23 |
Compared with MMBZ5235BS-7-F and BZX84-C6V8, BZT52HC6V8WFQ delivers superior thermal performance (830 mW vs. ≤300 mW), lower dynamic impedance (8 Ω vs. ≥10 Ω), and automotive qualification-making it optimal for high-reliability, medium-power regulation in harsh environments.
Availability
BZT52HC6V8WFQ is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, and medical diagnostic equipment requiring stable component supply with full AEC-Q101 traceability and IATF 16949 production assurance.
Supply support for BZT52HC6V8WFQ 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 components for automotive, industrial, and computing markets with ISO/TS 16949 and ISO 14001 certifications.
This device belongs to the BZT52HC series of AEC-Q101 qualified Zener diodes engineered specifically for voltage regulation and transient suppression in automotive power distribution and sensor subsystems.
FAQ
What is the maximum reverse voltage this Zener can withstand before breakdown?
The BZT52HC6V8WFQ has a nominal zener voltage of 6.4–7.2 V at 5 mA test current, meaning it enters controlled reverse breakdown within that range. Its absolute maximum reverse voltage is not specified separately-it is designed to operate continuously in breakdown at rated power; exceeding 7.2 V without current limiting risks thermal runaway.
Is this part suitable for bidirectional ESD protection?
No-this is a unidirectional Zener diode optimized for reverse-bias regulation. While it provides basic clamping above VZ, it lacks the symmetric breakdown characteristics and IEC 61000-4-2 rating required for dedicated ESD protection; use dedicated TVS diodes like DZ23C6V8 for bidirectional surge suppression.
How does the SOD123F package affect thermal performance compared to SOD123?
The SOD123F features a flattened leadframe profile and optimized internal thermal path, achieving 150 °C/W junction-to-ambient resistance with a 1 cm² cathode pad-versus ~200 °C/W for standard SOD123. This 25% improvement enables 830 mW power handling versus 600 mW typical for legacy variants.
Can this Zener be used in parallel for higher current capability?
Not recommended-minor VZ mismatches between units cause current hogging, leading to thermal imbalance and premature failure. For higher current regulation, use a single higher-power Zener or switch to an active shunt regulator with current-sharing capability.
BZT52HC6V8WFQ-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123F
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.8 V
- Tolerance:
- ±6.1%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 8 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-123F
BZT52HC6V8WFQ-7 FAQ
1.How can I place an order for BZT52HC6V8WFQ-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52HC6V8WFQ-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 BZT52HC6V8WFQ-7 reliable?
The price and inventory of BZT52HC6V8WFQ-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52HC6V8WFQ-7 is usually 5 days.
3.What payment methods are accepted for BZT52HC6V8WFQ-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52HC6V8WFQ-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52HC6V8WFQ-7?
BZT52HC6V8WFQ-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52HC6V8WFQ-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 BZT52HC6V8WFQ-7?
For technical support, including BZT52HC6V8WFQ-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52HC6V8WFQ-7 requirements.
6.How does Aetrix verify that BZT52HC6V8WFQ-7 is sourced from the original manufacturer or authorized distributors?
All BZT52HC6V8WFQ-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 BZT52HC6V8WFQ-7 meets industry standards.
7.What is the process for return or replacement of BZT52HC6V8WFQ-7?
All BZT52HC6V8WFQ-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52HC6V8WFQ-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 BZT52HC6V8WFQ-7 part is unused and in its original packaging.
Return procedure for BZT52HC6V8WFQ-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52HC6V8WFQ-7 Tags
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