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Diodes Incorporated DDZ9714T-7
- Part No.:
- DDZ9714T-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
DDZ9714T-7.pdf
- Description:
- DIODE ZENER 33V 150MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:6,458
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Product details
Overview
DDZ9714T-7 from Diodes Incorporated is a surface-mount Zener diode with nominal zener voltage of 33 V, ±1.5 V tolerance (31.35–34.65 V), 150 mW power dissipation, 0.05 µA maximum reverse leakage at 25.0 V, and SOD523 package. It provides precise voltage regulation in low-power biasing, reference, and overvoltage protection circuits for portable instrumentation and power management subsystems.
For engineers reviewing the DDZ9714T-7 datasheet, DDZ9714T-7 pinout, DDZ9714T-7 application, or DDZ9714T-7 equivalent, key selection criteria include zener voltage accuracy, low leakage at rated VR, thermal resistance (833 °C/W), SOD523 footprint compatibility, and RoHS/Green compliance for high-density PCB assembly.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown with sharp knee characteristics and minimal dynamic impedance across its specified zener current range (typically 1 mA to 10 mA). Its temperature coefficient is +0.08 %/°C at 33 V, enabling stable regulation under moderate ambient shifts.
The SOD523 package supports automated placement and reflow soldering, with cathode band marking for polarity identification. Thermal performance is defined on FR-4 board with manufacturer-recommended pad layout, delivering 150 mW derated linearly above +25°C ambient per Fig. 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nominal) | 33 V - Stable regulation point for mid-range voltage references |
| Zener Voltage Range | 31.35–34.65 V - Tight ±1.5 V tolerance ensures predictable clamping |
| Power Dissipation | 150 mW - Limits continuous power handling in compact layouts |
| Reverse Leakage Current | 0.05 µA @ 25.0 V - Enables ultra-low standby current in battery-sensitive designs |
| Thermal Resistance | 833 °C/W - Requires careful thermal pad design for sustained operation |
| Operating Temperature | −65 to +150 °C - Supports industrial and automotive under-hood environments |
Pinout & Package
Package: SOD523 - ultra-compact 2-pin surface-mount plastic case (0.80 mm × 0.60 mm footprint), cathode identified by molded band, matte tin-plated terminals, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node | Connected to lower-potential side in reverse-bias regulation configuration |
| Cathode | Zener breakdown terminal / Regulated output node | Marked with band; connected to higher-potential rail for voltage clamping |
Key Features
| Feature | Design Value |
|---|---|
| Sharp breakdown knee | Enables clean transition into regulation with minimal voltage hysteresis |
| Very low leakage (0.05 µA) | Preserves battery life in always-on sensing and monitoring circuits |
| SOD523 footprint | Reduces PCB area by >50% vs. SOD-123; compatible with fine-pitch pick-and-place |
| Lead-free & Halogen-free | Meets IPC-J-STD-020D Level 1 and EU RoHS 2011/65/EU requirements |
Applications
| Portable Instrumentation | USB-C Power Delivery Monitoring |
|---|---|
Use Scenario: Precision analog front-end biasing in handheld multimeters and sensor signal conditioners. IC Role / Device Role / Timing Role: Zener reference for ADC reference buffer and op-amp offset trimming. Use Value: 33 V nominal voltage enables direct scaling of 0–30 V input ranges with <±0.5% error contribution. |
Use Scenario: Overvoltage clamp on CC line monitoring circuitry in USB-C PD controllers. IC Role / Device Role / Timing Role: Protection element limiting CC line voltage to safe threshold during fault events. Use Value: 25.0 V reverse test voltage ensures immunity to transient spikes while maintaining fast response via low capacitance. |
| Industrial PLC I/O Modules | Low-Power IoT Node Regulation |
Use Scenario: Input protection and level-shifting for 24 V DC digital inputs in programmable logic controllers. IC Role / Device Role / Timing Role: Clamp diode in optocoupler input stage to prevent ESD-induced latch-up. Use Value: 0.05 µA leakage avoids false triggering in high-impedance sense paths at −40°C to +85°C. |
Use Scenario: Standby-mode voltage reference for coin-cell-powered environmental sensors. IC Role / Device Role / Timing Role: Low-current zener shunt regulator supplying stable 3.3 V LDO input. Use Value: 150 mW rating allows operation up to 4.5 mA at 33 V without thermal runaway in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C33 (Nexperia) | Same 33 V nominal, but ±5% tolerance (31.4–34.7 V); 200 mW rating; SOD523 package | Higher power margin but looser voltage spec; suitable where regulation precision <±3% is acceptable | Select when higher surge energy handling is needed and tighter VZ tolerance is not required |
| MMSZ5261B (ON Semiconductor) | 33 V nominal, ±5% tolerance; 500 mW rating; SOD-123 package (larger footprint) | Greater thermal mass and power capability, but incompatible with SOD523 land pattern | Choose only if board redesign for larger package is feasible and 500 mW dissipation is essential |
Compared with BZX584-C33 and MMSZ5261B, DDZ9714T-7 offers superior voltage accuracy (±1.5 V vs. ±5%) and strict RoHS/Green compliance, making it optimal for space-constrained, high-precision, and environmentally regulated designs where SOD523 fit is mandatory.
Availability
DDZ9714T-7 is available at Aetrix Electronics and suitable for portable instrumentation, USB-C power delivery monitoring, industrial PLC I/O modules, and low-power IoT node regulation requiring stable component supply with full traceability and lifecycle support.
Supply support for DDZ9714T-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.
This device belongs to the DDZ9689T–DDZ9717T Zener diode series, engineered for high-accuracy, low-leakage voltage reference and protection in miniaturized, lead-free consumer and industrial electronics.
FAQ
What is the maximum zener test current (IZT) for DDZ9714T-7?
The datasheet specifies IZT = 1 mA for DDZ9714T-7. This is the standardized test current used to measure nominal zener voltage (33 V) and dynamic impedance. Operation beyond 10 mA requires thermal derating per the power derating curve in Figure 1.
Does DDZ9714T-7 have a specified zener impedance (ZZT)?
Yes - typical zener impedance is 120 Ω at IZT = 1 mA and TA = +25°C, derived from Figure 14 (Zener Impedance vs. Voltage for DDZ9709T–DDZ9714T). This value reflects small-signal AC resistance in breakdown and impacts regulation stability under varying load conditions.
Can DDZ9714T-7 be used in place of a 30 V zener diode?
No - DDZ9714T-7 is specifically rated for 33 V nominal zener voltage (range 31.35–34.65 V). Substituting it for a 30 V device (e.g., DDZ9713T) would raise the regulation threshold by ~3 V, potentially causing overvoltage stress or functional failure in circuits designed for 30 V clamping.
Is the SOD523 package of DDZ9714T-7 compatible with standard reflow profiles?
Yes - the device is qualified for Pb-free reflow per J-STD-020D Level 1, with peak temperature up to 260°C. Its matte tin annealed terminals ensure reliable wetting, and the low mass (0.002 g) minimizes thermal shock risk during standard 240–260°C peak reflow cycles.
DDZ9714T-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):
- 33 V
- Tolerance:
- ±5%
- Power - Max:
- 150 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
DDZ9714T-7 FAQ
1.How can I place an order for DDZ9714T-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ9714T-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 DDZ9714T-7 reliable?
The price and inventory of DDZ9714T-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ9714T-7 is usually 5 days.
3.What payment methods are accepted for DDZ9714T-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ9714T-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ9714T-7?
DDZ9714T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ9714T-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 DDZ9714T-7?
For technical support, including DDZ9714T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ9714T-7 requirements.
6.How does Aetrix verify that DDZ9714T-7 is sourced from the original manufacturer or authorized distributors?
All DDZ9714T-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 DDZ9714T-7 meets industry standards.
7.What is the process for return or replacement of DDZ9714T-7?
All DDZ9714T-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ9714T-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 DDZ9714T-7 part is unused and in its original packaging.
Return procedure for DDZ9714T-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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