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Diodes Incorporated DDZ9701T-7
- Part No.:
- DDZ9701T-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
DDZ9701T-7.pdf
- Description:
- DIODE ZENER 14V 150MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:1,391
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Product details
Overview
DDZ9701T-7 from Diodes Incorporated is a surface-mount Zener diode with nominal zener voltage 14 V (min 13.3 V, max 14.7 V), 150 mW power dissipation, 0.05 µA reverse leakage at 10.6 V, and SOD523 package. It provides precise voltage regulation in low-power biasing, reference, and protection circuits for portable electronics and sensor interfaces.
For engineers reviewing the DDZ9701T-7 datasheet, DDZ9701T-7 pinout, DDZ9701T-7 application, or DDZ9701T-7 equivalent, key selection criteria include zener voltage tolerance, low leakage at rated VR, thermal resistance (833 °C/W), sharp breakdown characteristics, and compatibility with automated SMT assembly on FR-4 PCBs.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown to maintain stable voltage across its terminals under controlled current (IZT = 50 µA). Its sharp knee and low dynamic impedance (<30 Ω at 1 mA, per Fig. 12) enable accurate regulation in low-current analog circuits.
Designed for ambient operation from –65 °C to +150 °C, it exhibits a temperature coefficient of approximately +0.06 %/°C near 14 V (inferred from Fig. 17), supporting stable performance across industrial temperature ranges without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nom) | 14 V - Stable regulation point at IZT = 50 µA, ±5% tolerance band (13.3–14.7 V) |
| Power Dissipation | 150 mW - Maximum continuous power at TA = 25 °C; derates linearly above 25 °C per Fig. 1 |
| Reverse Leakage Current | 0.05 µA @ VR = 10.6 V - Ensures minimal quiescent current draw in high-impedance reference nodes |
| Thermal Resistance | 833 °C/W - Junction-to-ambient value on standard FR-4 board; dictates temperature rise under load |
| Forward Voltage | 0.9 V @ IF = 10 mA - Enables use as low-drop rectifier or clamp in dual-polarity protection schemes |
| Package | SOD523 - 1.25 mm × 0.85 mm footprint; compatible with 0402-class pick-and-place and reflow profiles |
Pinout & Package
DDZ9701T-7 uses the SOD523 surface-mount package: cathode-indicated by a band on the top surface; anode and cathode are the only two terminals. The device is unidirectional and polarity-sensitive.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common or lower-potential rail; defines reverse-bias orientation |
| Cathode | Zener output / regulated voltage node | Delivers stable 14 V when reverse-biased above breakdown; marked with band on package |
Key Features
| Feature | Design Value |
|---|---|
| Sharp breakdown knee | Enables precise voltage clamping with minimal current variation across operating range |
| Low leakage (0.05 µA) | Preserves accuracy in high-impedance voltage references and battery-powered sensor bias networks |
| SOD523 package | 0.002 g weight and 1.25 × 0.85 mm outline support ultra-compact layout in wearables and IoT edge nodes |
| Lead-free & halogen-free | Complies with RoHS 2 and JEDEC MSL Level 1; eliminates post-reflow moisture sensitivity concerns |
Applications
| Portable Power Monitoring | Industrial Sensor Biasing |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage in Bluetooth earbuds using a resistive divider into an ADC input. IC Role / Device Role: Precision 14 V zener reference sets ADC full-scale threshold and enables overvoltage detection. Use Value: Low 0.05 µA leakage prevents divider error; SOD523 footprint fits tight space constraints near battery connector. |
Use Scenario: Providing stable bias current to a 4–20 mA loop transmitter's op-amp input stage. IC Role / Device Role: Zener-regulated reference source ensures consistent current-source compliance voltage. Use Value: Sharp breakdown maintains regulation accuracy despite supply ripple; 150 mW rating supports transient surges. |
| USB-C ESD Clamp Reference | Automotive Cabin Controller Reference |
Use Scenario: Setting clamping voltage for TVS-assisted USB-C port protection in docking stations. IC Role / Device Role: Zener establishes trigger threshold for parallel crowbar circuit during fast transients. Use Value: 14 V nominal voltage aligns with USB PD 3.0 VBUS fault thresholds; low leakage avoids false triggering. |
Use Scenario: Supplying reference voltage to microcontroller ADC for cabin temperature sensing in HVAC control modules. IC Role / Device Role: Stable 14 V reference improves ADC linearity and reduces calibration drift over –40 °C to +125 °C. Use Value: Temperature coefficient ~+0.06 %/°C minimizes drift; SOD523 withstands automotive reflow and vibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584C14L | Same 14 V nominal, but SOD323 package (1.7 × 1.3 mm); 200 mW rating; higher leakage (1 µA @ VR) | Larger footprint and higher leakage limit use in ultra-low-power sensor nodes | Select when higher power margin is needed and board area permits larger package |
| MMSZ4687T1G | 14 V nominal, SOD123 package (3.7 × 1.6 mm); 500 mW rating; leakage 0.1 µA @ VR | Higher power handling but 3× larger footprint; not suitable for space-constrained designs | Prefer for industrial power supplies where thermal margin and mechanical robustness outweigh size constraints |
Compared with BZX584C14L and MMSZ4687T1G, DDZ9701T-7 offers the smallest footprint and lowest leakage among 14 V Zeners in production, making it optimal for miniaturized, battery-sensitive applications where regulation precision and board space are critical.
Availability
DDZ9701T-7 is available at Aetrix Electronics and suitable for portable power monitoring, industrial sensor biasing, USB-C ESD clamp reference, and automotive cabin controller reference requiring stable component supply and long-term lifecycle continuity.
Supply support for DDZ9701T-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, specializing in high-reliability, energy-efficient components for consumer, industrial, and automotive markets.
This device belongs to the DDZ9689T–DDZ9717T series of precision Zener diodes engineered for compact, low-leakage voltage reference and regulation in space-constrained, low-power systems.
FAQ
What is the maximum zener test current (IZT) for DDZ9701T-7?
The datasheet specifies IZT = 50 µA for DDZ9701T-7. This is the standardized test current used to measure nominal zener voltage (14 V) and define the min/max voltage range (13.3–14.7 V). Operation outside this current may shift voltage due to dynamic impedance effects shown in Fig. 12.
Can DDZ9701T-7 be used in place of a 13.8 V zener for automotive 12 V rail monitoring?
Yes - its 13.3–14.7 V range fully covers 13.8 V, and its +0.06 %/°C temperature coefficient yields only ~0.08 V drift from –40 °C to +125 °C. However, verify system-level tolerance stack-up, as forward voltage (0.9 V) and PCB trace resistance affect final accuracy.
Is DDZ9701T-7 suitable for reverse-polarity protection circuits?
No - it is a Zener diode, not a Schottky or MOSFET-based protection device. While it conducts in reverse breakdown, its 150 mW rating and lack of surge current rating make it unsuitable for sustained reverse-voltage blocking. Use dedicated protection ICs or discrete MOSFETs instead.
Does the SOD523 package require special soldering profile considerations?
Yes - its small mass (0.002 g) and fine pitch demand precise thermal profiling: peak reflow temperature ≤260 °C, time above liquidus 60–90 s, and ramp rates ≤3 °C/s. Follow Diodes' recommended pad layout (D = 0.75–0.85 mm, E = 1.15–1.25 mm) to prevent tombstoning.
DDZ9701T-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):
- 14 V
- Tolerance:
- ±5%
- Power - Max:
- 150 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 50 nA @ 10.6 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
DDZ9701T-7 FAQ
1.How can I place an order for DDZ9701T-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ9701T-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 DDZ9701T-7 reliable?
The price and inventory of DDZ9701T-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ9701T-7 is usually 5 days.
3.What payment methods are accepted for DDZ9701T-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ9701T-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ9701T-7?
DDZ9701T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ9701T-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 DDZ9701T-7?
For technical support, including DDZ9701T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ9701T-7 requirements.
6.How does Aetrix verify that DDZ9701T-7 is sourced from the original manufacturer or authorized distributors?
All DDZ9701T-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 DDZ9701T-7 meets industry standards.
7.What is the process for return or replacement of DDZ9701T-7?
All DDZ9701T-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ9701T-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 DDZ9701T-7 part is unused and in its original packaging.
Return procedure for DDZ9701T-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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