My Inquiry
My Account
Diodes Incorporated DDZ9714Q-7
- Part No.:
- DDZ9714Q-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
DDZ9714Q-7.pdf
- Description:
- DIODE ZENER 33V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DDZ9714Q-7 from Diodes Incorporated is a surface-mount, low-current Zener diode with a nominal zener voltage of 33 V (min 31.35 V, max 34.65 V), rated for 500 mW power dissipation on FR-4 PCB at TL = +75°C, specified at 50 µA test current, and AEC-Q101 qualified for automotive applications including ECU voltage reference and sensor biasing.
For engineers reviewing the DDZ9714Q-7 datasheet, DDZ9714Q-7 pinout, DDZ9714Q-7 application, or DDZ9714Q-7 equivalent, this device is selected for precision low-power voltage regulation in space-constrained, thermally demanding automotive modules where stable reverse breakdown behavior and low leakage (<0.05 µA @ 25.0 V) are critical.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain a stable reference voltage across its terminals under varying load and temperature conditions. Its 33 V nominal zener voltage exhibits a positive temperature coefficient (~0.08 %/°C per Fig. 20), and it delivers low dynamic impedance (typ. ~120 Ω at IZ = 5 mA) for effective noise suppression in feedback paths.
Designed for automated SMT assembly, it uses a cathode-band polarity marker on the SOD123 package and achieves <0.01 g mass and UL 94V-0 flammability rating. It supports operation from –65°C to +150°C and maintains <0.05 µA reverse leakage at VR = 25.0 V - enabling reliable performance in battery-backed and always-on vehicle subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nom) | 33 V - stable reference point for overvoltage clamping and analog signal conditioning |
| Zener Voltage Range | 31.35 V to 34.65 V - ensures production yield compliance and design margin for 33 V systems |
| Test Current (IZT) | 50 µA - enables ultra-low quiescent current operation in energy-sensitive automotive sensors |
| Max Reverse Leakage (IR) | 0.05 µA @ 25.0 V - minimizes standby power loss in always-on monitoring circuits |
| Power Dissipation | 500 mW - sufficient for transient suppression and reference buffering without heatsinking |
| Thermal Resistance (J-A) | 340 °C/W - defines derating curve for ambient temperatures above +75°C on standard FR-4 |
| Package | SOD123 - 2.65 mm × 1.55 mm footprint compatible with high-density PCB layouts |
Pinout & Package
DDZ9714Q-7 uses the SOD123 surface-mount plastic package with a single cathode band marking indicating the cathode terminal. The device has two terminals: anode and cathode, with polarity critical for proper reverse-bias operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node | Connected to system ground or lower-potential rail; forms return path during Zener conduction |
| Cathode | Zener breakdown terminal / Voltage reference output | Connected to regulated node; supplies stable 33 V reference when reverse biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood and cabin applications with PPAP support and IATF 16949 manufacturing |
| Low 50 µA test current | Enables use in microamp-level bias networks for Hall-effect sensors and LIN transceivers |
| Halogen- and antimony-free "Green" construction | Meets automotive environmental compliance (Br+Cl <1500 ppm, Sb <1000 ppm) without compromising reliability |
| Matte tin annealed terminals | Ensures robust solder joint integrity and compatibility with lead-free reflow profiles (MIL-STD-202) |
| Moisture sensitivity Level 1 | Eliminates bake requirements prior to SMT assembly, reducing process overhead and cost |
Applications
| Engine Control Unit (ECU) Reference | Automotive Camera Power Sequencing |
|---|---|
|
Use Scenario: Providing stable 33 V reference for ADC input scaling and microcontroller reset supervision in engine management systems. IC Role / Device Role / Timing Role: Zener voltage reference diode establishing precise analog-to-digital conversion baseline and brown-out detection threshold. Use Value: Maintains ±3% voltage accuracy across –40°C to +125°C ambient, ensuring consistent ADC readings and deterministic reset timing. |
Use Scenario: Clamping transient surges on 3.3 V or 5 V camera module power rails during ignition events in ADAS vision systems. IC Role / Device Role / Timing Role: Low-leakage Zener clamp protecting image sensor and serializer ICs from ISO 7637-2 pulse 5a/b-induced overvoltage. Use Value: Limits rail excursion to ≤34.65 V while drawing only 0.05 µA at 25 V, preserving low-power sleep state integrity. |
| Body Control Module (BCM) Sensor Biasing | Infotainment System Voltage Monitoring |
|
Use Scenario: Supplying regulated bias current to NTC thermistors and pressure transducers in door modules and HVAC actuators. IC Role / Device Role / Timing Role: Precision current source formed by series resistor + DDZ9714Q-7, delivering stable 50 µA through sensing elements. Use Value: Enables sub-1% temperature measurement accuracy over full automotive temperature range due to tight VZ tolerance and low TC drift. |
Use Scenario: Monitoring 12 V battery rail health in head units and telematics control units via resistive divider into MCU ADC. IC Role / Device Role / Timing Role: High-impedance voltage reference node stabilizing divider ratio against supply variation and temperature drift. Use Value: Reduces ADC reading error from ±5% to ±0.8% by replacing generic 33 V Zener with AEC-Q101-grade unit exhibiting <0.1%/°C TC stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C33-7-F | 33 V nominal, 350 mW rating, SOT-23 package, non-automotive grade | Lacks AEC-Q101 qualification and PPAP documentation; not approved for safety-critical vehicle functions | Select only for non-automotive industrial or consumer designs where qualification is not required |
| MMSZ5261B-TP | 33 V nominal, 500 mW, SOD-123, RoHS-compliant but not AEC-Q101 qualified | No IATF 16949 manufacturing traceability or automotive change control process | Acceptable for cost-sensitive Tier 2 subsystems where full automotive compliance is waived |
Compared with BZX84-C33-7-F and MMSZ5261B-TP, DDZ9714Q-7 provides verified automotive qualification, tighter VZ tolerance (±3.5% vs. ±5%), and documented thermal derating on FR-4 - making it the sole choice for ASIL-B–aligned voltage supervision in OEM ECUs.
Availability
DDZ9714Q-7 is available at Aetrix Electronics and suitable for automotive electronics, body control modules, and ADAS sensor interfaces requiring stable component supply with full AEC-Q101 traceability and long-term lifecycle assurance.
Supply support for DDZ9714Q-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 computing markets with ISO/TS 16949 and ISO 9001 certification.
This device belongs to Diodes' AEC-Q101-qualified Zener diode family designed specifically for automotive voltage reference, overvoltage protection, and biasing in harsh-environment electronic control units.
FAQ
What is the maximum operating temperature for DDZ9714Q-7?
The device supports continuous operation from –65°C to +150°C junction temperature. Its thermal resistance (RθJA = 340°C/W) requires derating above +75°C ambient on FR-4 PCBs; at +105°C ambient, maximum allowable power drops to ~350 mW per Figure 1.
Is DDZ9714Q-7 compatible with lead-free reflow processes?
Yes - its matte tin-annealed terminals meet MIL-STD-202 Method 208 solderability requirements and are qualified for peak reflow temperatures up to 260°C, supporting standard Pb-free SAC305 profiles without dewetting or intermetallic degradation.
Does DDZ9714Q-7 have a specified zener impedance?
While not explicitly tabulated, Figure 15 shows typical zener impedance of ~120 Ω at IZ = 5 mA for the 33 V variant (DDZ9714). This value reflects AC impedance in breakdown and is critical for ripple rejection in reference circuits.
How does the temperature coefficient affect voltage stability in automotive environments?
Per Figure 20, DDZ9714Q-7 exhibits a +0.08 %/°C temperature coefficient near 33 V. Over –40°C to +125°C, this results in ~±1.3 V drift - acceptable for non-precision references but requires compensation in high-accuracy ADC biasing applications.
DDZ9714Q-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):
- 33 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 50 nA @ 25 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
DDZ9714Q-7 FAQ
1.How can I place an order for DDZ9714Q-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ9714Q-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 DDZ9714Q-7 reliable?
The price and inventory of DDZ9714Q-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ9714Q-7 is usually 5 days.
3.What payment methods are accepted for DDZ9714Q-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ9714Q-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ9714Q-7?
DDZ9714Q-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ9714Q-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 DDZ9714Q-7?
For technical support, including DDZ9714Q-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ9714Q-7 requirements.
6.How does Aetrix verify that DDZ9714Q-7 is sourced from the original manufacturer or authorized distributors?
All DDZ9714Q-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 DDZ9714Q-7 meets industry standards.
7.What is the process for return or replacement of DDZ9714Q-7?
All DDZ9714Q-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ9714Q-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 DDZ9714Q-7 part is unused and in its original packaging.
Return procedure for DDZ9714Q-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZ9714Q-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…
