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Diodes Incorporated DDZ9715T-7
- Part No.:
- DDZ9715T-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
DDZ9715T-7.pdf
- Description:
- DIODE ZENER 36V 150MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:4,946
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Product details
Overview
DDZ9715T-7 from Diodes Incorporated is a surface-mount Zener diode with nominal zener voltage 36 V (min 34.2 V, max 37.8 V), 150 mW power dissipation, 50 µA maximum zener test current, 0.05 µA reverse leakage at 27.3 V, and SOD523 package. It provides precise voltage regulation in low-power biasing, reference, and protection circuits for industrial sensors and portable power management.
For engineers reviewing the DDZ9715T-7 datasheet, DDZ9715T-7 pinout, DDZ9715T-7 application, or DDZ9715T-7 equivalent, key selection criteria include zener voltage tolerance (±5%), temperature coefficient (~+0.08%/°C per Fig. 19), low leakage (<0.05 µA), sharp breakdown knee, and SOD523 footprint compatibility with high-density PCB layouts.
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 (≈120 Ω at IZ = 1 mA, per Fig. 15) support accurate voltage referencing in analog front-ends and feedback networks.
The device exhibits a positive temperature coefficient of approximately +0.08%/°C near 36 V (Fig. 19), enabling predictable drift behavior in temperature-sensitive references. Thermal resistance is 833°C/W on FR-4 board, limiting continuous power handling above +70°C ambient without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nom) | 36 V - Stable regulation point for mid-range voltage references |
| Zener Voltage Range | 34.2 V to 37.8 V - ±5% tolerance ensures predictable clamping in production |
| Power Dissipation | 150 mW - Supports low-power biasing without heatsinking on standard PCBs |
| Reverse Leakage Current | 0.05 µA @ 27.3 V - Minimizes error current in high-impedance reference nodes |
| Zener Test Current | 50 µA - Defined operating point for specified VZ measurement and impedance |
| Thermal Resistance | 833 °C/W - Requires derating above 70°C ambient per Fig. 1 power curve |
| Package | SOD523 - 1.2 mm × 0.8 mm footprint enables ultra-compact layout in space-constrained designs |
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 / Reference ground node in shunt regulator | Connected to system ground or lower-potential rail; defines reference return path |
| Cathode | Zener breakdown terminal / Regulated output node | Connected to input voltage source; maintains 36 V relative to anode during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Sharp breakdown knee | Enables clean transition into regulation with minimal voltage hysteresis |
| Low leakage current | 0.05 µA at VR = 27.3 V reduces loading error in precision divider/reference circuits |
| SOD523 footprint | 0.8 mm × 1.2 mm area saves >60% board space vs. SOD-123 in dense analog layouts |
| Lead-free & halogen-free | Complies with RoHS 2 and JEDEC MSL Level 1 for reflow-compatible manufacturing |
| Matte tin annealed terminals | Ensures reliable solder wetting and intermetallic formation on Cu/Ni/Au PCB finishes |
Applications
| Industrial Sensor Signal Conditioning | Portable Device Power Rail Clamping |
|---|---|
Use Scenario: Stabilizing excitation voltage for 4–20 mA loop-powered pressure transducers in factory automation. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 36 V bias to op-amp driver stage. Use Value: Tight 34.2–37.8 V tolerance ensures consistent sensor full-scale output across temperature and unit variance. |
Use Scenario: Overvoltage protection on USB-C PD input rails in handheld medical monitors. IC Role / Device Role / Timing Role: Reverse-biased clamping element diverting transient surges above 36 V to ground. Use Value: Low 0.05 µA leakage preserves battery life; sharp knee limits clamping overshoot during fast transients. |
| Programmable Logic Controller Analog Input Protection | Automotive Body Control Module Reference |
Use Scenario: Protecting 12-bit SAR ADC inputs against ESD and load-dump spikes in PLC I/O modules. IC Role / Device Role / Timing Role: Front-end Zener clamp absorbing energy before signal conditioning amplifiers. Use Value: SOD523 size allows placement within 2 mm of connector entry point; 150 mW rating handles repetitive 1 kV/100 ns pulses. |
Use Scenario: Generating stable 36 V reference for LIN bus transceiver biasing in BCM submodules. IC Role / Device Role / Timing Role: Precision voltage reference setting threshold for wake-up detection circuitry. Use Value: +0.08%/°C TC aligns with silicon tempco of surrounding logic, minimizing net drift over -40°C to +125°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX584-C36 | Same 36 V nominal, but SOD-323 package (1.7 × 1.3 mm); 200 mW rating; higher leakage (1 µA @ 27.3 V) | Larger footprint; better power handling but less suitable for ultra-dense layouts | Select when thermal margin >50 mW is required and board area permits larger case |
| MMSZ5245B | SOD-123 package (3.7 × 1.6 mm); 500 mW rating; looser tolerance (±5% still applies); same 36 V nominal | Not suitable for miniaturized designs; preferred where manual rework or high-reliability solder joints are prioritized | Choose for legacy designs using SOD-123 footprints or where higher surge energy absorption is needed |
Compared with BZX584-C36 and MMSZ5245B, DDZ9715T-7 delivers the smallest footprint (SOD523), lowest leakage (0.05 µA), and tightest thermal coupling for compact, low-power reference and clamping-making it optimal for next-gen space-constrained industrial and portable electronics.
Availability
DDZ9715T-7 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable device power rail clamping, and programmable logic controller analog input protection requiring stable component supply and long-term obsolescence management.
Supply support for DDZ9715T-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, industry-standard components for automotive, industrial, and consumer markets.
DDZ9715T-7 belongs to the DDZ9689T–DDZ9717T series of precision Zener diodes designed specifically for space-constrained voltage reference and overvoltage protection in high-volume automated assembly environments.
FAQ
What is the maximum reverse voltage this Zener can withstand before breakdown?
The DDZ9715T-7 has a nominal zener voltage of 36 V with a guaranteed range of 34.2 V to 37.8 V at 50 µA test current. Breakdown occurs sharply within this band; operation below 34.2 V keeps the device in high-impedance reverse-blocking mode with ≤0.05 µA leakage at 27.3 V.
Can this part be used in place of a 33 V or 39 V Zener?
No-DDZ9715T-7 is specifically rated for 36 V nominal regulation. Substituting with 33 V (DDZ9714T) or 39 V (DDZ9716T) devices alters reference accuracy by ±3 V, potentially violating system voltage thresholds in feedback loops or protection circuits.
Is the SOD523 package compatible with standard reflow profiles?
Yes-the DDZ9715T-7 meets J-STD-020D Moisture Sensitivity Level 1 and uses matte tin annealed terminals. It supports standard lead-free reflow profiles (peak 260°C, 60 sec max) without preconditioning, provided recommended pad layout from Diodes' package outline guide is followed.
How does temperature affect its zener voltage stability?
Per Figure 19, DDZ9715T-7 exhibits a positive temperature coefficient of approximately +0.08%/°C near 36 V. This means VZ increases by ~28.8 mV per 10°C rise-predictable and usable for compensated references, but requires derating if used beyond 70°C ambient due to 150 mW power limit.
DDZ9715T-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):
- 36 V
- Tolerance:
- ±5%
- Power - Max:
- 150 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 50 nA @ 27.3 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
DDZ9715T-7 FAQ
1.How can I place an order for DDZ9715T-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ9715T-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 DDZ9715T-7 reliable?
The price and inventory of DDZ9715T-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ9715T-7 is usually 5 days.
3.What payment methods are accepted for DDZ9715T-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ9715T-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ9715T-7?
DDZ9715T-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ9715T-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 DDZ9715T-7?
For technical support, including DDZ9715T-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ9715T-7 requirements.
6.How does Aetrix verify that DDZ9715T-7 is sourced from the original manufacturer or authorized distributors?
All DDZ9715T-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 DDZ9715T-7 meets industry standards.
7.What is the process for return or replacement of DDZ9715T-7?
All DDZ9715T-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ9715T-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 DDZ9715T-7 part is unused and in its original packaging.
Return procedure for DDZ9715T-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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