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Diodes Incorporated DDZ9699S-7
- Part No.:
- DDZ9699S-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
DDZ9699S-7.pdf
- Description:
- DIODE ZENER 12V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:145,031
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Product details
Overview
DDZ9699S-7 from Diodes Incorporated is a surface-mount precision Zener diode with nominal zener voltage 12 V (min 11.4 V, max 12.6 V), 50 µA maximum reverse leakage at 9.1 V, 200 mW power dissipation, and SOD-323 package. It delivers tight voltage tolerance and sharp breakdown for voltage reference and regulation in low-power analog circuits.
For engineers reviewing the DDZ9699S-7 datasheet, DDZ9699S-7 pinout, DDZ9699S-7 application, or DDZ9699S-7 equivalent, this page provides verified electrical parameters, thermal derating behavior, zener impedance vs. current, temperature coefficient data, and RoHS-compliant packaging details essential for precision biasing and reference design.
Technical Context
This device operates as a two-terminal voltage reference where reverse-biased junction conduction establishes a stable output voltage under controlled current conditions. Its 12 V nominal zener voltage exhibits ±5% tolerance (11.4–12.6 V), 0.05 µA max IR at VR = 9.1 V, and typical zener impedance of ~20 Ω at IZT = 5 mA per Fig. 12–13.
Thermal performance is defined by RθJA = 625 °C/W on FR-4 with recommended pad layout, enabling operation from –65 °C to +150 °C. The SOD-323 package supports automated assembly and features matte tin-plated Alloy 42 leads with cathode band polarity marking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage (VZ) | 12 V - stable reference point at IZT = 5 mA, used for precision biasing and regulation |
| Zener Voltage Range | 11.4 V to 12.6 V - ±5% tolerance ensures predictable clamping across production lots |
| Max Reverse Leakage (IR) | 0.05 µA at VR = 9.1 V - ultra-low leakage preserves accuracy in high-impedance reference nodes |
| Power Dissipation (PD) | 200 mW - limits maximum continuous zener current to ~16.7 mA at 12 V |
| Thermal Resistance (RθJA) | 625 °C/W - requires thermal-aware PCB layout to avoid junction overheating above 25 °C ambient |
| Operating Temperature | –65 °C to +150 °C - suitable for industrial and automotive under-hood environments |
| Package | SOD-323 - 2-pin surface-mount outline (2.3–2.7 mm length) compatible with standard pick-and-place equipment |
Pinout & Package
SOD-323 package: 2-terminal surface-mount plastic case with cathode band marking; dimensions: 2.30–2.70 mm (L) × 1.20–1.40 mm (W) × 0.25–0.35 mm (H); weight ≈ 0.004 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / reverse bias return path | Connected to lower potential node in zener configuration; forms reference ground return |
| Cathode | Zener voltage output / reverse bias input | Provides regulated 12 V output when reverse biased; marked with band on package top view |
Key Features
| Feature | Design Value |
|---|---|
| Very sharp breakdown characteristics | Low dynamic impedance (~20 Ω at 5 mA) enables stable regulation under varying load currents |
| Tight VZ tolerance (±5%) | Reduces need for post-production trimming in voltage reference circuits |
| Lead-free & RoHS compliant | Meets global environmental compliance without compromising solderability or reliability |
| Low leakage (0.05 µA) | Minimizes error current in high-impedance feedback networks and sensor biasing |
| Suitable for automated assembly | SOD-323 footprint and matte tin terminations support high-yield reflow and placement |
Applications
| ADC Reference Voltage | Power Supply Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 12 V reference to 12-bit SAR ADC in industrial data acquisition system. IC Role / Device Role / Timing Role: Precision voltage reference source for ADC VREF input, replacing bulkier TL431-based solutions. Use Value: ±5% VZ tolerance and <0.05 µA leakage ensure <0.1 LSB reference error contribution at 25 °C. | Use Scenario: Clamping 12 V rail against transient surges in automotive body control module. IC Role / Device Role / Timing Role: Two-terminal overvoltage protection element placed between rail and ground. Use Value: Sharp 12 V breakdown and 200 mW rating absorb short-duration transients without thermal runaway. |
| Op-Amp Bias Network | Microcontroller Reset Threshold |
Use Scenario: Generating matched bias voltages for dual op-amp input stages in signal conditioning front-end. IC Role / Device Role / Timing Role: Dual-zener network component providing symmetrical ±12 V references. Use Value: Tight tolerance and low tempco (<0.08 %/°C per Fig. 18) maintain common-mode stability over –40 to +85 °C. | Use Scenario: Setting precise 12 V reset threshold for 3.3 V microcontroller supervisory circuit. IC Role / Device Role / Timing Role: Zener-based comparator input reference in discrete reset generator. Use Value: Cathode-band polarity and SOD-323 size enable compact layout adjacent to reset IC, minimizing noise pickup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C12LT1G | Same 12 V nominal VZ, but ±6% tolerance (11.4–12.7 V); higher 100 µA max IR at 9.1 V | Higher leakage may affect high-Z reference nodes; less suitable for low-power sensor biasing | Select if cost sensitivity outweighs leakage and tolerance requirements |
| MMSZ4687T1G | 12 V nominal VZ, ±5% tolerance, but 500 mW PD and SOD-123 package (larger footprint) | Higher power rating allows >40 mA zener current; incompatible with space-constrained SOD-323 layouts | Select when higher power handling or legacy SOD-123 board compatibility is required |
Compared with BZX84-C12LT1G and MMSZ4687T1G, DDZ9699S-7 offers the lowest leakage and smallest footprint among 12 V SOD-323 Zeners, making it optimal for miniaturized, low-current precision reference designs where board area and node integrity are critical.
Availability
DDZ9699S-7 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body electronics, and portable medical instrumentation requiring stable component supply and long-term manufacturing continuity.
Supply support for DDZ9699S-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 and manufacturing operations across Asia and the Americas.
The DDZ96xxS series belongs to Diodes' precision Zener diode product line, engineered specifically for high-accuracy voltage reference and regulation in space-constrained, low-power applications where stability, low leakage, and automated assembly compatibility are essential.
FAQ
What is the maximum zener test current (IZT) for DDZ9699S-7?
The datasheet specifies IZT = 5 mA for VZ measurement at 25 °C. This is the standardized test condition-not a maximum operating current. Continuous operation should stay within the 200 mW power limit, yielding ~16.7 mA absolute max at 12 V, but derating per Fig. 1 is required above 25 °C ambient.
Does DDZ9699S-7 have a specified temperature coefficient (TCVZ)?
Yes-Fig. 18 shows TCVZ ≈ +0.07 %/°C for 12 V devices (DDZ9699S falls in the DDZ9697S–DDZ9707S group). This positive coefficient means VZ increases ~8.4 mV/°C, critical for predicting reference drift across temperature ranges.
Is DDZ9699S-7 suitable for use in AEC-Q101 qualified automotive applications?
No-DDZ9699S-7 is not AEC-Q101 qualified. Only DDZ9705S (marked "Note 5") in this family carries AEC-Q101 qualification. For automotive applications requiring stress-tested reliability, that part or alternate qualified Zeners must be selected.
How does the SOD-323 package affect thermal performance compared to larger packages?
The SOD-323's RθJA = 625 °C/W is significantly higher than SOD-123 (≈300 °C/W) or DO-35 (≈200 °C/W), meaning it heats up faster under load. Successful thermal design requires strict adherence to the recommended pad layout in AP02001 and limits continuous power to ≤100 mW above 50 °C ambient per Fig. 1.
DDZ9699S-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 12 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 50 nA @ 9.1 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-323
DDZ9699S-7 FAQ
1.How can I place an order for DDZ9699S-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ9699S-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 DDZ9699S-7 reliable?
The price and inventory of DDZ9699S-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ9699S-7 is usually 5 days.
3.What payment methods are accepted for DDZ9699S-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ9699S-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ9699S-7?
DDZ9699S-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ9699S-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 DDZ9699S-7?
For technical support, including DDZ9699S-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ9699S-7 requirements.
6.How does Aetrix verify that DDZ9699S-7 is sourced from the original manufacturer or authorized distributors?
All DDZ9699S-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 DDZ9699S-7 meets industry standards.
7.What is the process for return or replacement of DDZ9699S-7?
All DDZ9699S-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ9699S-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 DDZ9699S-7 part is unused and in its original packaging.
Return procedure for DDZ9699S-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZ9699S-7 Tags
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