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Diodes Incorporated DDZ6V8BSF-7
- Part No.:
- DDZ6V8BSF-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
DDZ6V8BSF-7.pdf
- Description:
- DIODE ZENER 6.66V 500MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:4,509
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Product details
Overview
DDZ6V8BSF-7 from Diodes Incorporated is a precision 0.5W surface-mount Zener diode in SOD323F package, delivering tightly regulated 6.49–6.83V zener voltage at 20mA test current, with 30Ω dynamic impedance and ≤7.5µA reverse leakage at 4V, widely used for voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the DDZ6V8BSF-7 datasheet, DDZ6V8BSF-7 pinout, DDZ6V8BSF-7 application, or DDZ6V8BSF-7 equivalent, this part supports stable voltage regulation in compact DC-DC converters, analog sensor biasing circuits, and automotive body control modules requiring AEC-Q200-aligned reliability and RoHS-compliant assembly.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its cathode-anode terminals. Its 30Ω zener impedance at 20mA ensures minimal output variation under load transients, while the −65°C to +150°C operating range supports industrial and automotive ambient conditions.
The device uses a silicon planar epitaxial structure with cathode band marking, optimized for low thermal resistance (250°C/W) on FR-4 PCBs. Its tight 5% VZ tolerance (6.49–6.83V) and low temperature coefficient (<±5.5 mV/°C near 6.8V) enable high-accuracy regulation without external trimming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.49–6.83 V at IZT = 20 mA - defines precise regulation point for feedback networks |
| Zener Impedance (ZZT) | 30 Ω at f = 1 kHz - limits output voltage deviation during current step changes |
| Power Dissipation (PD) | 500 mW on FR-4 PCB - supports continuous operation in space-constrained power stages |
| Reverse Leakage (IR) | ≤7.5 µA at VR = 4 V - ensures negligible error current in high-impedance reference paths |
| Thermal Resistance (RθJA) | 250 °C/W - enables thermal design with standard 10 mm × 10 mm copper pad |
| Operating Temperature | −65°C to +150°C - qualified for under-hood automotive and industrial environments |
| Package | SOD323F - 1.25 mm × 1.70 mm footprint with 0.25–0.35 mm lead width for fine-pitch reflow |
Pinout & Package
Package: SOD323F - ultra-compact surface-mount plastic package with molded green compound (UL 94V-0), matte tin-plated copper alloy leadframe, and cathode band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener reference ground node | Connected to system ground or low-side return path in shunt regulator topologies |
| Cathode | Reverse-biased Zener terminal / regulated output node | Connected to feedback divider or protected rail; polarity marked by band on package |
Key Features
| Feature | Design Value |
|---|---|
| Precision Zener voltage tolerance | ±2.5% typical (6.49–6.83V range) - eliminates need for post-assembly calibration |
| Low dynamic impedance | 30 Ω at 20 mA - maintains <10 mV output shift under ±5 mA load steps |
| Automated assembly compatibility | SOD323F tape-and-reel (3,000 pcs/reel) with J-STD-020 Level 1 moisture rating - supports high-yield SMT lines |
| Environmental compliance | Fully RoHS 3 compliant, halogen- and antimony-free "Green" compound (<900 ppm Br+Cl, <1000 ppm Sb) - meets automotive Tier-1 chemical requirements |
Applications
| DC-DC Converter Feedback | Automotive Body Control Module |
|---|---|
|
Use Scenario: Regulating output voltage of a 12V-input buck converter supplying microcontroller core logic. IC Role / Device Role / Timing Role: Shunt voltage reference in optocoupler-coupled feedback loop of isolated flyback controller. Use Value: Tight 6.49–6.83V tolerance ensures ±1.5% output accuracy across temperature and line variations. |
Use Scenario: Providing stable 5V reference for LIN bus transceiver biasing and door module sensor interfaces. IC Role / Device Role / Timing Role: Precision voltage clamp protecting MCU GPIOs from battery transients up to 24V. Use Value: 500mW power rating and −65°C to +150°C range support ASIL-B functional safety zones without derating. |
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Monitor |
|
Use Scenario: Biasing bridge sensors in factory-floor pressure transmitters exposed to EMI-rich environments. IC Role / Device Role / Timing Role: Low-noise voltage reference for instrumentation amplifier input stage. Use Value: 30Ω zener impedance minimizes reference noise coupling into 24-bit ADC front-end. |
Use Scenario: Monitoring VBUS voltage in USB-C PD sink applications where accurate 5–20V detection is required. IC Role / Device Role / Timing Role: Overvoltage protection element clamping PD controller sense node during fault events. Use Value: Cathode-band polarity and SOD323F footprint enable direct placement adjacent to USB-C connector routing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C6V8 (Nexperia) | Same 6.8V nominal, but ±5% tolerance (6.46–7.14V); 40Ω ZZT; SOT-23 package (larger footprint) | Larger thermal resistance (350°C/W) requires larger PCB copper area for same power handling | Select when legacy SOT-23 layout exists and tighter tolerance is not required |
| MMSZ4687 (ON Semiconductor) | 6.8V nominal, ±5% tolerance; 30Ω ZZT; SOD-123 package (1.8×1.4mm vs. SOD323F's 1.25×1.7mm) | Higher RθJA (300°C/W); no AEC-Q200 qualification stated in datasheet | Select for cost-sensitive consumer designs where automotive qualification is unnecessary |
Compared with BZX84-C6V8 and MMSZ4687, DDZ6V8BSF-7 offers superior voltage accuracy, lower thermal resistance, and explicit AEC-Q200 alignment-making it optimal for space-constrained, high-reliability automotive and industrial voltage references.
Availability
DDZ6V8BSF-7 is available at Aetrix Electronics and suitable for automotive body control units, industrial sensor signal chains, and USB-C power delivery monitors requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for DDZ6V8BSF-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 semiconductor company specializing in discrete, analog, and mixed-signal devices, with manufacturing certified to IATF 16949 and product qualifications aligned to AEC-Q standards.
This part belongs to Diodes' DDZx series of precision Zener diodes, engineered specifically for high-accuracy voltage referencing in automotive, industrial, and computing power systems where stability, small size, and environmental compliance are critical.
FAQ
What is the maximum continuous Zener current for DDZ6V8BSF-7 at 25°C?
The device is rated for 500 mW power dissipation at 25°C ambient. With a nominal Zener voltage of 6.66 V (midpoint of 6.49–6.83 V), the maximum continuous Zener current is approximately 75 mA (500 mW ÷ 6.66 V). Derating applies above 25°C per the published power derating curve.
Does DDZ6V8BSF-7 meet AEC-Q200 requirements?
Yes - Diodes Incorporated explicitly states that parts qualified to AEC-Q200 (and other AEC standards) are available upon request, manufactured in IATF 16949-certified facilities, and PPAP-capable. DDZ6V8BSF-7 falls within the DDZ2V4ASF–DDZ39DSF family covered by this qualification pathway.
How is polarity identified on the SOD323F package?
Polarity is indicated by a cathode band printed on the package surface, located adjacent to the cathode terminal. In top-view orientation, the band aligns with the shorter lead side; the anode is the opposite terminal. This matches standard SOD323F mechanical drawings and Diodes' marking convention.
Can DDZ6V8BSF-7 be used in place of a 6.8V Zener with looser tolerance?
Yes - its tighter 6.49–6.83V range (±2.5%) improves regulation accuracy over generic 6.8V Zeners with ±5% tolerance. However, circuit stability must be verified due to its lower 30Ω impedance, which may affect loop compensation in feedback networks originally designed for higher-impedance references.
DDZ6V8BSF-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.66 V
- Tolerance:
- ±3%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 7.5 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-323F
DDZ6V8BSF-7 FAQ
1.How can I place an order for DDZ6V8BSF-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ6V8BSF-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 DDZ6V8BSF-7 reliable?
The price and inventory of DDZ6V8BSF-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ6V8BSF-7 is usually 5 days.
3.What payment methods are accepted for DDZ6V8BSF-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ6V8BSF-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ6V8BSF-7?
DDZ6V8BSF-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ6V8BSF-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 DDZ6V8BSF-7?
For technical support, including DDZ6V8BSF-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ6V8BSF-7 requirements.
6.How does Aetrix verify that DDZ6V8BSF-7 is sourced from the original manufacturer or authorized distributors?
All DDZ6V8BSF-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 DDZ6V8BSF-7 meets industry standards.
7.What is the process for return or replacement of DDZ6V8BSF-7?
All DDZ6V8BSF-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ6V8BSF-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 DDZ6V8BSF-7 part is unused and in its original packaging.
Return procedure for DDZ6V8BSF-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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