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Diodes Incorporated DDZ9700T-7
- Part No.:
- DDZ9700T-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
DDZ9700T-7.pdf
- Description:
- DIODE ZENER 13V 150MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:3,211
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Product details
Overview
DDZ9700T-7 from Diodes Incorporated is a surface-mount Zener diode with a nominal zener voltage of 13 V, ±4.5% tolerance (12.35–13.65 V), 150 mW power dissipation, and ultra-low reverse leakage current of 0.05 µA at 9.8 V. It uses an SOD523 package and serves as a precision voltage reference or overvoltage clamp in low-power analog signal conditioning circuits.
For engineers reviewing the DDZ9700T-7 datasheet, DDZ9700T-7 pinout, DDZ9700T-7 application, or DDZ9700T-7 equivalent, key selection criteria include zener voltage accuracy at IZT = 50 µA, thermal resistance (833 °C/W), cathode-band polarity marking, and compatibility with automated SMT assembly on FR-4 PCBs.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage regulation under controlled current conditions. Its sharp breakdown characteristic and low leakage support high-impedance biasing and sensing applications where minimal loading is critical.
The device exhibits a temperature coefficient of approximately +0.07 %/°C near 13 V (inferred from Fig. 17), enabling predictable drift behavior across –65°C to +150°C operating range. Its SOD523 footprint ensures minimal board area usage while maintaining thermal performance per JEDEC-standard pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 13 V - Regulates at 13 V with 50 µA test current; actual range 12.35–13.65 V ensures design margin for precision references. |
| Power Dissipation | 150 mW - Maximum steady-state power at 25°C ambient; derates linearly above 25°C per Fig. 1. |
| Reverse Leakage Current | 0.05 µA @ 9.8 V - Enables use in microamp-level bias networks without significant error current. |
| Forward Voltage | 0.9 V @ 10 mA - Defines forward conduction threshold; relevant for polarity protection or dual-direction clamping designs. |
| Thermal Resistance | 833 °C/W - Junction-to-ambient value on FR-4 board; dictates temperature rise under load for reliability modeling. |
| Operating Temperature | –65°C to +150°C - Supports industrial and automotive under-hood environments with full parameter validity. |
Pinout & Package
Package: SOD523 - ultra-compact surface-mount plastic case (0.85 mm × 1.25 mm × 0.65 mm), cathode marked by band, matte tin-plated terminals, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential node in Zener operation. | Used for forward conduction or as reference ground return in shunt regulator configurations. |
| Cathode | Current exit terminal in forward bias; higher-potential node during Zener breakdown. | Connected to regulated voltage rail; cathode band identifies this terminal for correct PCB orientation. |
Key Features
| Feature | Design Value |
|---|---|
| Sharp Zener Breakdown | Enables precise voltage clamping with minimal knee voltage spread-critical for accurate threshold detection in ADC reference buffers. |
| Low Leakage Current | 0.05 µA max at VR = 9.8 V reduces error in high-impedance divider networks used in battery-monitoring circuits. |
| SOD523 Package | 0.002 g weight and 0.85 mm × 1.25 mm footprint supports dense portable electronics layouts and reflow-compatible assembly. |
| Lead-Free & Green Compliance | Fully RoHS 2 compliant with <900 ppm Br/Cl and <1000 ppm Sb-meets strict environmental requirements for EU and global markets. |
Applications
| Portable Battery Monitoring | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage in wearables using high-impedance resistive dividers. IC Role / Device Role / Timing Role: Zener reference providing stable 13 V clamp to protect ADC input from overvoltage transients. Use Value: 0.05 µA leakage avoids measurable offset error in nanoamp-biased sensor front-ends. |
Use Scenario: Biasing bridge sensors in factory-floor pressure transmitters operating at 85°C ambient. IC Role / Device Role / Timing Role: Precision voltage reference for Wheatstone bridge excitation with thermal stability tracking. Use Value: +0.07 %/°C TC and –65°C to +150°C rating ensure consistent bridge output across extended temperature cycles. |
| USB-C Power Delivery Clamp | Automotive Cabin Control Logic |
Use Scenario: Overvoltage protection on 12 V auxiliary rails in USB PD sink adapters. IC Role / Device Role / Timing Role: Shunt clamp limiting transient spikes to safe levels before DC-DC converter input. Use Value: 150 mW rating and sharp breakdown allow fast response to 100 ns surges without thermal runaway. |
Use Scenario: Voltage reference for microcontroller reset circuitry in HVAC control modules. IC Role / Device Role / Timing Role: Stable 13 V threshold generator for brown-out detection logic. Use Value: Cathode-band polarity marking and SOD523 footprint ensure reliable automated placement in high-volume automotive SMT lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C13 | Same 13 V nominal rating but SOD-323 package (larger footprint); 200 mW power rating. | Higher power handling suits higher-current clamp scenarios; less suitable for ultra-dense layouts. | Select when thermal margin >150 mW is required and board space permits larger SOD-323. |
| MMSZ4687 | 13 V rating in SOD-123 package; 500 mW power; higher leakage (1 µA @ 9.8 V). | Greater power capacity trades off leakage performance-less ideal for low-current precision references. | Choose for cost-sensitive industrial controls where leakage tolerance exceeds 0.05 µA. |
Compared with BZX584C13 and MMSZ4687, DDZ9700T-7 delivers the tightest combination of ultra-low leakage, smallest footprint, and verified 13 V regulation accuracy-making it optimal for space-constrained, low-power analog systems requiring long-term stability.
Availability
DDZ9700T-7 is available at Aetrix Electronics and suitable for portable battery monitoring, industrial sensor signal conditioning, and USB-C power delivery clamp circuits requiring stable component supply and consistent parametric performance across production lots.
Supply support for DDZ9700T-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 integrated circuits, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
This device belongs to Diodes' surface-mount Zener diode product line, engineered specifically for compact, high-reliability voltage reference and protection functions in consumer, industrial, and computing applications.
FAQ
What is the maximum Zener test current for DDZ9700T-7?
The datasheet specifies a Zener test current (IZT) of 50 µA for parameter characterization. This is the standardized condition used to measure nominal voltage (13 V) and impedance; operation beyond this current requires thermal derating per Fig. 1 and must stay within the 150 mW absolute maximum power limit.
Does DDZ9700T-7 have a specified Zener impedance?
Yes-Fig. 12 shows typical dynamic impedance (ZZT) of ~35 Ω at 13 V and 50 µA. This value reflects AC impedance near the operating point and directly impacts regulation accuracy under varying load currents in shunt reference designs.
Can DDZ9700T-7 be used in bidirectional ESD protection?
No-it is a unidirectional Zener diode optimized for reverse-bias regulation. For bidirectional ESD protection, purpose-built TVS diodes such as the D24Z3.3S (SOD-523) are required, as they specify symmetric clamping in both polarities and meet IEC 61000-4-2 standards.
Is the SOD523 package compatible with standard reflow profiles?
Yes-the device is rated for moisture sensitivity level 1 (per J-STD-020D) and supports IPC/JEDEC J-STD-020-compliant lead-free reflow profiles. Its matte tin annealed terminals ensure robust solderability without pre-baking, even after extended dry-pack storage.
DDZ9700T-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):
- 13 V
- Tolerance:
- ±5%
- Power - Max:
- 150 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 50 nA @ 9.8 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
DDZ9700T-7 FAQ
1.How can I place an order for DDZ9700T-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ9700T-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 DDZ9700T-7 reliable?
The price and inventory of DDZ9700T-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ9700T-7 is usually 5 days.
3.What payment methods are accepted for DDZ9700T-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ9700T-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ9700T-7?
DDZ9700T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ9700T-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 DDZ9700T-7?
For technical support, including DDZ9700T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ9700T-7 requirements.
6.How does Aetrix verify that DDZ9700T-7 is sourced from the original manufacturer or authorized distributors?
All DDZ9700T-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 DDZ9700T-7 meets industry standards.
7.What is the process for return or replacement of DDZ9700T-7?
All DDZ9700T-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ9700T-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 DDZ9700T-7 part is unused and in its original packaging.
Return procedure for DDZ9700T-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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