My Inquiry
My Account
Diodes Incorporated DDZ9683Q-7
- Part No.:
- DDZ9683Q-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
DDZ9683Q-7.pdf
- Description:
- DIODE ZENER 3V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:4,789
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DDZ9683Q-7 from Diodes Incorporated is a surface-mount, low-current Zener diode in SOD123 package, rated for 3.0 V nominal zener voltage (2.85–3.15 V), 50 µA test current, and 500 mW power dissipation at TL = +75°C. It features 0.8 µA maximum reverse leakage at VR = 1 V and is AEC-Q101 qualified for automotive applications including battery voltage monitoring and low-power reference circuits.
For engineers reviewing the DDZ9683Q-7 datasheet, DDZ9683Q-7 pinout, DDZ9683Q-7 application, or DDZ9683Q-7 equivalent, this device is selected for precision low-bias voltage regulation in space-constrained, thermally stable automotive and portable electronics where tight zener tolerance and low leakage are critical.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage under low-current conditions (IZT = 50 µA), minimizing self-heating and enabling use in ultra-low-power systems. Its 340 °C/W junction-to-ambient thermal resistance reflects FR-4 PCB mounting with standard pad layout.
The device exhibits a temperature coefficient of approximately –0.02 %/°C near 3.0 V, supporting stable regulation across –65°C to +150°C operating range. Cathode-band polarity marking and matte tin–annealed terminals ensure compatibility with automated reflow assembly and RoHS-compliant manufacturing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nominal) | 3.0 V - Stable reference point for low-voltage biasing and sensing circuits |
| Zener Voltage Range | 2.85–3.15 V @ IZT = 50 µA - Tight ±5% tolerance enables predictable circuit behavior |
| Max Reverse Leakage | 0.8 µA @ VR = 1 V - Ensures minimal quiescent current draw in battery-powered systems |
| Power Dissipation | 500 mW @ TL = +75°C - Supports continuous operation on standard FR-4 PCB without heatsinking |
| Thermal Resistance (J-A) | 340 °C/W - Defines safe ambient temperature derating for sustained 500 mW operation |
| Operating Temperature | –65°C to +150°C - Validated for under-hood automotive environments and industrial edge nodes |
Pinout & Package
Package: SOD123 - Surface-mount plastic case (UL 94V-0), 0.01 g weight, cathode band marking, matte tin–annealed terminals solderable per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to lower-potential node; defines reverse-bias orientation for regulation |
| Cathode | Zener breakdown terminal / voltage reference output | Marked by band; supplies regulated 3.0 V when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| Low test current operation | Specified at 50 µA - Enables use in microamp-level bias networks without compromising regulation accuracy |
| AEC-Q101 qualification | Validated for automotive change control, PPAP capability, and IATF 16949 manufacturing - supports Tier-1 BOM inclusion |
| Green material compliance | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb) - meets global environmental directives without performance trade-offs |
| Automated assembly readiness | SOD123 footprint with J-STD-020 Level 1 moisture sensitivity - eliminates bake requirements and supports high-yield SMT lines |
Applications
| Automotive Battery Monitoring | Portable Device Voltage Reference |
|---|---|
Use Scenario: Monitoring 3.6 V Li-ion battery pack voltage in automotive body control modules. IC Role / Device Role / Timing Role: Zener reference for ADC input scaling and overvoltage detection comparator threshold. Use Value: 0.8 µA leakage prevents measurable discharge during sleep mode; ±5% VZ tolerance ensures accurate state-of-charge reporting. |
Use Scenario: Providing stable 3.0 V reference for real-time clock (RTC) backup supply in wearables. IC Role / Device Role / Timing Role: Low-current voltage clamp regulating coin-cell-supplied RTC oscillator circuit. Use Value: 50 µA test current matches typical RTC bias current, eliminating need for external current source or resistor divider. |
| Industrial Sensor Signal Conditioning | USB-C Power Negotiation Clamp |
Use Scenario: Biasing bridge sensor outputs in factory-floor pressure transmitters. IC Role / Device Role / Timing Role: Precision reference for instrumentation amplifier common-mode level setting. Use Value: –65°C to +150°C rating ensures stability across uncontrolled industrial ambient conditions; SOD123 size fits dense sensor PCB layouts. |
Use Scenario: Clamping CC1/CC2 line voltage during USB-C PD negotiation in docking stations. IC Role / Device Role / Timing Role: Low-capacitance (≈10 pF) overvoltage limiter protecting Type-C controller GPIOs. Use Value: 3.0 V breakdown aligns with USB-C specification's 3.3 V logic margin; SOD123 footprint allows placement adjacent to connector pins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C3V0-7-F | Same 3.0 V nominal, but ±6% tolerance (2.85–3.15 V), 350 mW rating, SOT-23 package | Larger footprint and higher thermal resistance (450 °C/W); not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification and thermal performance needs |
| MMSZ4683T1G | 3.0 V nominal, ±5% tolerance, 500 mW rating, SOD-123 package, but only industrial-grade (–65°C to +150°C not validated) | No PPAP support or IATF 16949 traceability; leakage 1.0 µA @ VR = 1 V | Select for non-automotive industrial designs requiring identical electrical specs and package |
Compared with BZX84-C3V0-7-F and MMSZ4683T1G, DDZ9683Q-7 uniquely combines AEC-Q101 qualification, 0.8 µA leakage, and full IATF 16949 traceability-making it the only choice for production automotive voltage reference nodes requiring zero-defect reliability and change-controlled sourcing.
Availability
DDZ9683Q-7 is available at Aetrix Electronics and suitable for automotive battery monitoring, portable device voltage reference, and industrial sensor signal conditioning requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for DDZ9683Q-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, specializing in high-reliability components for automotive, industrial, and consumer markets with ISO/TS 16949 and IATF 16949 certification.
This device belongs to Diodes' AEC-Q101-qualified Zener diode family designed specifically for low-power, high-stability voltage reference and protection functions in harsh-environment automotive electronics.
FAQ
What is the maximum reverse leakage current for DDZ9683Q-7 at 25°C?
The maximum reverse leakage current is 0.8 µA at VR = 1 V and TA = +25°C, measured per DS30410 Rev. 17–2. This value is confirmed in the Electrical Characteristics table and applies to all units within specification; no derating is required at room temperature.
Is DDZ9683Q-7 compatible with lead-free reflow profiles?
Yes - its matte tin–annealed terminals meet MIL-STD-202 Method 208 solderability requirements and are qualified for standard JEDEC J-STD-020 lead-free reflow profiles up to 260°C peak, with Level 1 moisture sensitivity ensuring no pre-bake is needed.
Does DDZ9683Q-7 require external current limiting in series with the cathode?
Yes - like all Zener diodes, it requires a series current-limiting resistor to set IZT = 50 µA for nominal regulation. The resistor value is calculated using (VSUPPLY − VZ) / 50 µA, where VSUPPLY must exceed 3.15 V to ensure breakdown across tolerance.
How does the temperature coefficient affect regulation accuracy over –40°C to +125°C?
At 3.0 V, the typical temperature coefficient is –0.02 %/°C (Fig. 17), resulting in ≈±15 mV drift over 165°C span. For applications requiring tighter stability, this drift must be compensated in system-level calibration or paired with temperature-sensing firmware correction.
DDZ9683Q-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 800 nA @ 1 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-123
DDZ9683Q-7 FAQ
1.How can I place an order for DDZ9683Q-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ9683Q-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 DDZ9683Q-7 reliable?
The price and inventory of DDZ9683Q-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ9683Q-7 is usually 5 days.
3.What payment methods are accepted for DDZ9683Q-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ9683Q-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ9683Q-7?
DDZ9683Q-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ9683Q-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 DDZ9683Q-7?
For technical support, including DDZ9683Q-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ9683Q-7 requirements.
6.How does Aetrix verify that DDZ9683Q-7 is sourced from the original manufacturer or authorized distributors?
All DDZ9683Q-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 DDZ9683Q-7 meets industry standards.
7.What is the process for return or replacement of DDZ9683Q-7?
All DDZ9683Q-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ9683Q-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 DDZ9683Q-7 part is unused and in its original packaging.
Return procedure for DDZ9683Q-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZ9683Q-7 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
