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Diodes Incorporated DDZ9698T-7
- Part No.:
- DDZ9698T-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
DDZ9698T-7.pdf
- Description:
- DIODE ZENER 11V 150MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:1,040
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Product details
Overview
DDZ9698T-7 from Diodes Incorporated is a surface-mount Zener diode with nominal zener voltage 11 V (min 10.45 V, max 11.55 V), 150 mW power dissipation, 833 °C/W thermal resistance, 0.05 µA reverse leakage at 8.4 V, and SOD523 package. It provides precise voltage regulation in low-power biasing and reference circuits.
For engineers reviewing the DDZ9698T-7 datasheet, DDZ9698T-7 pinout, DDZ9698T-7 application, or DDZ9698T-7 equivalent, key selection criteria include zener voltage tolerance, low leakage at rated VR, sharp breakdown knee, thermal derating behavior, and compatibility with automated SMT assembly on FR-4 PCBs.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain stable voltage across its terminals under varying load or supply conditions. Its sharp breakdown characteristic and low dynamic impedance (<25 Ω at IZT = 5 mA) support high-accuracy voltage referencing.
The device is optimized for thermal stability with a temperature coefficient of approximately +0.04 %/°C near 11 V and is rated for operation from –65 °C to +150 °C. Its SOD523 package enables compact placement while maintaining adequate power handling for signal-level regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nom) | 11 V - Stable regulation point at test current of 5 mA |
| Zener Voltage Range | 10.45 V to 11.55 V - ±5% tolerance ensures predictable clamping in production |
| Power Dissipation | 150 mW - Maximum steady-state power at 25 °C ambient, derates linearly above 25 °C |
| Reverse Leakage Current | 0.05 µA at 8.4 V - Enables ultra-low quiescent current bias networks |
| Thermal Resistance | 833 °C/W - Junction-to-ambient value measured on standard FR-4 pad layout |
| Forward Voltage | 0.9 V at 10 mA - Confirmed conduction threshold for polarity verification and ESD protection use |
| Package | SOD523 - 1.2 mm × 0.8 mm footprint, 0.65 mm height, cathode band marking |
Pinout & Package
DDZ9698T-7 uses the SOD523 surface-mount plastic package with two terminals: anode and cathode. The cathode is marked by a visible band on the top surface. No internal leads or substrate connections beyond the two external terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive terminal in forward bias; connected to lower-potential node in Zener operation | Reference ground or common return path in shunt regulator configurations |
| Cathode | Negative terminal in forward bias; higher-potential node during Zener breakdown | Connected to regulated output node; cathode band identifies orientation for automated placement |
Key Features
| Feature | Design Value |
|---|---|
| Sharp breakdown knee | Enables clean transition into regulation with minimal voltage hysteresis across IZ |
| Low leakage current | 0.05 µA at 8.4 V supports microampere-level standby circuits without regulation drift |
| SOD523 package | 0.002 g weight and 1.2 mm × 0.8 mm footprint suit space-constrained portable and wearables |
| Lead-free & green construction | Meets RoHS 2 and halogen-free standards (Br+Cl <1500 ppm, Sb <1000 ppm) for eco-compliant designs |
| Moisture sensitivity Level 1 | No dry-pack or baking required before reflow-compatible with standard SMT lines |
Applications
| Power Supply Monitoring | ADC Reference Stabilization |
|---|---|
Use Scenario: Monitoring 12 V rail voltage in industrial control modules using a microcontroller ADC input. IC Role / Device Role / Timing Role: Shunt voltage reference providing known 11 V clamp to scale and protect ADC input. Use Value: Prevents overvoltage damage while enabling accurate rail margining within ±5% tolerance. |
Use Scenario: Providing stable reference for 10-bit SAR ADC in battery-powered sensor nodes. IC Role / Device Role / Timing Role: Low-drift, low-leakage Zener source for ratiometric reference divider network. Use Value: Maintains <0.1% full-scale error contribution due to <0.05 µA leakage and tight VZ tolerance. |
| Overvoltage Protection Clamp | Microcontroller Reset Circuit |
Use Scenario: Clamping transient spikes on 3.3 V I/O lines exposed to ESD or inductive kickback. IC Role / Device Role / Timing Role: Fast-reacting shunt element limiting voltage excursion to ≤11 V during surge events. Use Value: Limits peak stress to downstream logic while dissipating <150 mW without thermal runaway. |
Use Scenario: Generating clean reset signal for ARM Cortex-M0+ MCU when main 3.3 V supply drops below 2.9 V. IC Role / Device Role / Timing Role: Precision voltage threshold detector feeding RC delay network to reset controller. Use Value: Ensures deterministic reset assertion at 11 V reference point, independent of supply ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C11L | Same 11 V nominal, but SOD323 package (larger footprint, 200 mW rating) | Higher power handling suits higher-current biasing; less space-efficient | Select when >150 mW dissipation or legacy SOD323 board compatibility is required |
| MMSZ5240BT1G | 10 V nominal, SOD123 package, 500 mW rating, ±5% tolerance | Lower voltage and higher power-used where tighter regulation at 10 V is needed | Choose only if system requires 10 V reference and can accommodate larger 2.9 mm × 1.3 mm footprint |
Compared with BZX584C11L and MMSZ5240BT1G, DDZ9698T-7 offers the smallest footprint (SOD523), lowest leakage (0.05 µA), and best fit for ultra-compact, low-quiescent designs needing exact 11 V regulation without thermal derating penalties.
Availability
DDZ9698T-7 is available at Aetrix Electronics and suitable for power supply monitoring, ADC reference stabilization, overvoltage protection clamping, and microcontroller reset circuits requiring stable component supply and consistent parametric performance across production lots.
Supply support for DDZ9698T-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 the Americas.
This device belongs to Diodes' precision Zener diode portfolio targeting space-constrained, low-power analog functions-designed specifically for voltage reference, biasing, and protection in portable, automotive, and industrial electronics.
FAQ
What is the maximum zener test current (IZT) for DDZ9698T-7?
The datasheet specifies IZT = 5 mA for all devices in the DDZ9689T–DDZ9717T series, including DDZ9698T-7. At this current, the zener voltage is measured and guaranteed within the 10.45 V to 11.55 V range. Operation outside this current may shift VZ but remains within specified dynamic impedance limits.
Can DDZ9698T-7 be used in place of a 12 V Zener like DDZ9699T?
No-DDZ9698T-7 is rated for 11 V nominal (10.45–11.55 V), while DDZ9699T is 12 V (11.40–12.60 V). Substituting them alters regulation voltage by ~9%, potentially causing undervoltage lockout or overvoltage stress in sensitive circuits. Always match nominal VZ to circuit requirements.
Is the SOD523 package compatible with standard reflow profiles?
Yes-DDZ9698T-7 has Moisture Sensitivity Level 1 per J-STD-020D and is qualified for standard lead-free reflow (peak 260 °C). Its matte tin annealed terminals meet MIL-STD-202 solderability requirements, and no pre-baking is required prior to assembly.
Does DDZ9698T-7 have a specified zener impedance (ZZT)?
While not explicitly tabulated for each part, Figure 11 shows typical zener impedance for DDZ9693T–DDZ9699T at 11 V is ~20–25 Ω at IZT = 5 mA. This value reflects AC impedance near the operating point and supports stable regulation in feedback or reference paths.
DDZ9698T-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):
- 11 V
- Tolerance:
- ±5%
- Power - Max:
- 150 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 50 nA @ 8.4 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
DDZ9698T-7 FAQ
1.How can I place an order for DDZ9698T-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ9698T-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 DDZ9698T-7 reliable?
The price and inventory of DDZ9698T-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ9698T-7 is usually 5 days.
3.What payment methods are accepted for DDZ9698T-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ9698T-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ9698T-7?
DDZ9698T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ9698T-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 DDZ9698T-7?
For technical support, including DDZ9698T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ9698T-7 requirements.
6.How does Aetrix verify that DDZ9698T-7 is sourced from the original manufacturer or authorized distributors?
All DDZ9698T-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 DDZ9698T-7 meets industry standards.
7.What is the process for return or replacement of DDZ9698T-7?
All DDZ9698T-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ9698T-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 DDZ9698T-7 part is unused and in its original packaging.
Return procedure for DDZ9698T-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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