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Diodes Incorporated DDZ9690T-7
- Part No.:
- DDZ9690T-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
DDZ9690T-7.pdf
- Description:
- DIODE ZENER 5.6V 150MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:2,117
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Product details
Overview
DDZ9690T-7 from Diodes Incorporated is a surface-mount Zener diode with nominal zener voltage 5.6 V (min 5.32 V, max 5.88 V), 150 mW power dissipation, and 2 µA maximum reverse leakage at 4 V reverse bias. It uses an SOD523 package, features sharp breakdown characteristics, and is used for precision voltage regulation and reference in low-power analog circuits.
For engineers reviewing the DDZ9690T-7 datasheet, DDZ9690T-7 pinout, DDZ9690T-7 application, or DDZ9690T-7 equivalent, key selection criteria include zener voltage tolerance, low leakage at low VR, thermal resistance (833 °C/W), and compatibility with automated SMT assembly on space-constrained 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 knee and low dynamic impedance (typ. <10 Ω at IZT = 5 mA) enable accurate voltage clamping and reference generation in feedback loops.
The device is rated for operation from −65 °C to +150 °C, with temperature coefficient of zener voltage near zero for 5.6 V parts (≈0.02 %/°C per Fig. 16), supporting stable performance across industrial temperature ranges without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nom) | 5.6 V - Stable regulation point for 5 V-class logic supply monitoring or ADC reference. |
| Zener Voltage Range | 5.32–5.88 V - ±5% tolerance band ensures predictable clamping in production designs. |
| Power Dissipation | 150 mW - Limits continuous current to ~26 mA at 5.6 V; suitable for signal-level regulation only. |
| Reverse Leakage | 2 µA @ 4 V - Enables low-quiescent-current bias networks and high-impedance sensing nodes. |
| Thermal Resistance | 833 °C/W - Requires minimal copper area for thermal relief; derates to ~100 mW at +85 °C ambient. |
| Package | SOD523 - 1.2 mm × 0.8 mm footprint ideal for wearables and ultra-dense portable PCBs. |
Pinout & Package
Package: SOD523 - ultra-small plastic surface-mount case with cathode band marking; dimensions: 0.75–0.85 mm (D), 1.15–1.25 mm (E), 0.10–0.30 mm (L); weight ≈ 0.002 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Low-side connection in reverse-bias configuration | Connected to ground or lower-potential node when used as shunt regulator. |
| Cathode | Zener breakdown terminal / High-side connection in reverse-bias configuration | Connected to input voltage source; maintains regulated output at cathode-to-anode potential. |
Key Features
| Feature | Design Value |
|---|---|
| Sharp breakdown knee | Enables precise voltage threshold detection without hysteresis or soft clipping. |
| Very low leakage (2 µA @ 4 V) | Preserves accuracy in high-impedance bias networks and battery-powered sensor references. |
| SOD523 package | Reduces board area by >50% vs. SOD-123; compatible with 0201 placement equipment. |
| Lead-free & halogen-free | Meets IPC-J-STD-020D Level 1 moisture sensitivity and RoHS 2 / "Green" compliance. |
Applications
| USB Port Overvoltage Protection | Low-Power Sensor Reference |
|---|---|
Use Scenario: Clamping transient surges on USB VBUS line to prevent damage to downstream 5 V logic. IC Role / Device Role / Timing Role: Shunt Zener regulator providing fast-response voltage limiting at the interface connector. Use Value: 5.6 V breakdown protects 5 V tolerant ICs while drawing <2 µA standby current-no loading of host supply. | Use Scenario: Providing stable reference voltage for 12-bit ADC in battery-operated environmental sensor node. IC Role / Device Role / Timing Role: Passive voltage reference element in ratiometric measurement circuit with op-amp buffer. Use Value: ±5% VZ tolerance and <0.02 %/°C TC ensure <0.5% full-scale error over −40 to +85 °C. |
| Microcontroller Reset Circuit | Linear Regulator Feedback Divider |
Use Scenario: Generating clean reset signal during brown-out conditions in embedded MCU systems. IC Role / Device Role / Timing Role: Zener-based voltage detector triggering external reset IC or internal BOR threshold. Use Value: Sharp knee ensures monotonic transition; low leakage avoids false resets during deep sleep modes. | Use Scenario: Setting output voltage of adjustable LDO (e.g., AP2112) via feedback divider network. IC Role / Device Role / Timing Role: Precision voltage reference replacing resistor divider to improve load/line regulation. Use Value: Replaces two resistors with single 5.6 V reference, reducing component count and drift-induced output error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C5V6LT1G | Same 5.6 V nominal, SOD-523, but 200 mW rating and higher leakage (5 µA @ 4 V). | Higher power margin supports brief surge events; less suitable for ultra-low-IQ designs. | Select when transient energy absorption >150 mW is required and leakage budget allows ≥5 µA. |
| MMSZ5232BT1G | 5.6 V nominal, SOD-123 package (2.7 × 1.6 mm), 500 mW rating, 5 µA leakage @ 4 V. | Larger footprint enables better thermal handling; not suitable for ultra-dense layouts. | Choose when board space permits larger package and higher continuous power dissipation is needed. |
Compared with BZX584C5V6LT1G and MMSZ5232BT1G, DDZ9690T-7 offers the lowest leakage and smallest footprint among 5.6 V Zeners, making it optimal for miniaturized, battery-sensitive applications where precision and size outweigh raw power handling.
Availability
DDZ9690T-7 is available at Aetrix Electronics and suitable for USB interface protection, sensor reference design, microcontroller reset circuits, and LDO feedback networks requiring stable component supply and tight parametric consistency.
Supply support for DDZ9690T-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 part belongs to the DDZ9689T–DDZ9717T series of precision Zener diodes designed specifically for space-constrained, low-power voltage regulation and reference applications in consumer, computing, and industrial electronics.
FAQ
What is the maximum reverse voltage before breakdown for DDZ9690T-7?
The DDZ9690T-7 exhibits sharp Zener breakdown starting at 5.32 V (minimum specified) and fully stabilizes at 5.6 V nominal. It is not rated for sustained reverse operation below this range; applying ≤4 V reverse bias yields only 2 µA leakage, per datasheet Table.
Can DDZ9690T-7 be used in place of a 5.1 V Zener like DDZ9689T?
No-DDZ9690T-7 has a nominal 5.6 V breakdown, while DDZ9689T is 5.1 V. Substituting alters regulation point by >10%, risking overvoltage or undervoltage in feedback or protection circuits. Use only when system tolerances accommodate the 0.5 V shift.
Is DDZ9690T-7 suitable for automotive applications?
While rated for −65 °C to +150 °C junction temperature, DDZ9690T-7 is not AEC-Q200 qualified. It may be used in non-safety-critical automotive subsystems (e.g., infotainment power rails) only after full qualification per customer requirements and stress testing.
Does the SOD523 package support reflow soldering per J-STD-020?
Yes-the SOD523 package is rated Moisture Sensitivity Level 1 per J-STD-020D, meaning it can withstand unlimited floor life and standard Pb-free reflow profiles (peak 260 °C) without baking or special handling.
DDZ9690T-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):
- 5.6 V
- Tolerance:
- ±5%
- Power - Max:
- 150 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 2 µA @ 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
DDZ9690T-7 FAQ
1.How can I place an order for DDZ9690T-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ9690T-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 DDZ9690T-7 reliable?
The price and inventory of DDZ9690T-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ9690T-7 is usually 5 days.
3.What payment methods are accepted for DDZ9690T-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ9690T-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ9690T-7?
DDZ9690T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ9690T-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 DDZ9690T-7?
For technical support, including DDZ9690T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ9690T-7 requirements.
6.How does Aetrix verify that DDZ9690T-7 is sourced from the original manufacturer or authorized distributors?
All DDZ9690T-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 DDZ9690T-7 meets industry standards.
7.What is the process for return or replacement of DDZ9690T-7?
All DDZ9690T-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ9690T-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 DDZ9690T-7 part is unused and in its original packaging.
Return procedure for DDZ9690T-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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