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Diodes Incorporated DDZ9715Q-7
- Part No.:
- DDZ9715Q-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
DDZ9715Q-7.pdf
- Description:
- DIODE ZENER 36V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:9,516
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Product details
Overview
DDZ9715Q-7 from Diodes Incorporated is an AEC-Q101 qualified, surface-mount low-current Zener diode in SOD123 package, with nominal zener voltage of 36 V (min 34.2 V, max 37.8 V), 50 µA test current, 0.05 µA reverse leakage at 27.3 V, and 500 mW power dissipation on FR-4 PCB at TL = +75°C. It serves as a precision voltage reference or overvoltage clamp in automotive sensor signal conditioning circuits.
For engineers reviewing the DDZ9715Q-7 datasheet, DDZ9715Q-7 pinout, DDZ9715Q-7 application, or DDZ9715Q-7 equivalent, key selection criteria include its automotive qualification, low-test-current stability, tight 5% zener tolerance, SOD123 footprint compatibility, and temperature coefficient behavior near zero crossing (~0.06%/°C at 36 V).
Technical Context
This Zener diode operates in reverse breakdown mode with specified characteristics at TA = +25°C and thermal equilibrium at TT = +30°C ±1°C. Its 50 µA test current enables stable regulation in ultra-low-power bias networks where quiescent current must remain below 100 µA.
The device exhibits a positive temperature coefficient of approximately +0.06%/°C at 36 V, placing it near the zero-TC crossover region for higher-voltage Zeners. Its junction-to-lead thermal resistance is 150°C/W, supporting reliable operation under pulsed load conditions in compact automotive PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nom) | 36 V - Stable reference point for 3.3 V/5 V rail monitoring or CAN transceiver biasing |
| Zener Voltage Range | 34.2 V to 37.8 V - ±5% tolerance ensures predictable clamping across production lots |
| Test Current (IZT) | 50 µA - Enables use in battery-powered wake-up circuits without loading source |
| Max Reverse Leakage (IR) | 0.05 µA @ 27.3 V - Negligible current draw in standby mode for always-on automotive modules |
| Power Dissipation (PD) | 500 mW - Supports short-duration surge suppression up to 14 W peak with derating |
| Thermal Resistance (RθJL) | 150 °C/W - Allows direct thermal coupling to copper pour for enhanced reliability in engine bay designs |
| Operating Temp Range | −65°C to +150°C - Validated for under-hood automotive environments per AEC-Q101 stress testing |
Pinout & Package
Package: SOD123 - Surface-mount plastic case (UL 94V-0), 0.01 g mass, cathode band marking, matte tin–annealed terminals solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side of regulated node; defines polarity for reverse-bias operation |
| Cathode | Zener breakdown terminal / voltage reference output | Marked by band; connects to regulated rail or feedback node; carries full zener current during clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including PPAP submission and IATF 16949 manufacturing control |
| Low 50 µA test current | Enables stable regulation in microamp-level bias networks used in LIN/CAN node sleep-mode supervision |
| SOD123 footprint | Standardized 2.65 mm × 1.55 mm outline compatible with high-speed pick-and-place and reflow profiles |
| Halogen & antimony free | Meets automotive "Green" requirements (<900 ppm Br, <900 ppm Cl, <1000 ppm Sb) for end-of-life compliance |
| Moisture sensitivity Level 1 | No dry-pack or baking required before assembly-reduces manufacturing overhead in Tier-1 production lines |
Applications
| Automotive Cabin Temperature Sensor | Industrial PLC Analog Input Protection |
|---|---|
|
Use Scenario: Voltage reference for ratiometric NTC bridge measurement in HVAC control units. IC Role / Device Role / Timing Role: Zener reference stabilizes ADC reference divider against supply ripple and thermal drift. Use Value: 36 V rating allows safe margin above 24 V system transients while maintaining 50 µA bias current for <1 µA total sensor circuit consumption. |
Use Scenario: Overvoltage clamp on 0–10 V analog input channel exposed to field wiring surges. IC Role / Device Role / Timing Role: Fast-acting shunt regulator limiting input to 36 V before protection IC triggers. Use Value: 500 mW dissipation handles 100 ms 30 V transients without degradation; SOD123 layout fits dense I/O module spacing. |
| Automotive Radar Module Power Sequencing | Medical Portable Monitor Battery Monitoring |
|
Use Scenario: Bias voltage generator for RF amplifier enable logic during cold-cranking (6–16 V battery range). IC Role / Device Role / Timing Role: Provides stable 36 V rail for level-shifting gate drivers independent of main supply sag. Use Value: AEC-Q101 qualification ensures reliability across −40°C to +125°C ambient; ±5% tolerance avoids false sequencing faults. |
Use Scenario: Low-power battery voltage monitor threshold detector in handheld ECG devices. IC Role / Device Role / Timing Role: Zener-based comparator reference enabling wake-up when Li-ion drops below 3.6 V (scaled via resistor divider). Use Value: 0.05 µA leakage preserves >10-year shelf life; 50 µA test current matches ultra-low-quiescent op-amp inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C36LT1G | Same 36 V nominal, but ±6% tolerance (33.8–38.2 V); 200 mW PD; SOT-23 package | Lacks AEC-Q101 qualification; not PPAP-capable; unsuitable for automotive production | Select only for cost-sensitive industrial prototypes where qualification is not required |
| MMSZ5245B-TP | 36 V nominal, ±5% tolerance, but 500 mW PD rated at TA = +25°C only; no RθJL spec; SOD-123 same | Not AEC-Q101 qualified; moisture sensitivity Level 1 not confirmed; no automotive change control | Acceptable for non-automotive consumer designs needing identical electrical specs but no traceability |
Compared with BZX84-C36LT1G and MMSZ5245B-TP, DDZ9715Q-7 uniquely delivers automotive-grade reliability (PPAP, IATF 16949, AEC-Q101), verified thermal performance (RθJL = 150°C/W), and guaranteed low-leakage behavior (0.05 µA) essential for battery-critical systems.
Availability
DDZ9715Q-7 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial analog I/O protection, and portable medical battery monitoring requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for DDZ9715Q-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 the Americas.
The DDZ9xxxQ series belongs to Diodes' automotive-qualified Zener portfolio, engineered specifically for precision voltage reference and transient suppression in harsh-environment electronic control units.
FAQ
What is the maximum continuous reverse voltage that DDZ9715Q-7 can safely clamp?
DDZ9715Q-7 is rated for continuous operation at its nominal zener voltage of 36 V, with a maximum specified reverse voltage of 37.8 V (VZ max). It must not be subjected to sustained reverse bias exceeding this value without external current limiting, as uncontrolled current leads to thermal runaway beyond its 500 mW dissipation limit on FR-4 PCB.
Does DDZ9715Q-7 require a series current-limiting resistor in all applications?
Yes - a series resistor is mandatory to limit zener current within safe operating area. For example, at 24 V supply and 36 V zener, the resistor must ensure IZ ≤ 50 µA under worst-case conditions. Typical values range from 100 kΩ to 1 MΩ depending on source impedance and transient energy requirements.
How does the temperature coefficient affect regulation accuracy over automotive temperature ranges?
At 36 V, DDZ9715Q-7 exhibits a +0.06%/°C temperature coefficient, resulting in ~±1.2 V drift over −40°C to +125°C. This is acceptable for non-precision references but requires compensation in high-accuracy ADC reference paths; its stability at 50 µA minimizes self-heating error.
Can DDZ9715Q-7 replace standard 1N4733A in existing designs?
No - 1N4733A is a 5 W, DO-41 through-hole part with 5.1 V rating and different thermal profile. DDZ9715Q-7 is a 36 V, 500 mW, SOD123 surface-mount device. Direct replacement would violate voltage, power, package, and qualification requirements; redesign of bias network and layout is required.
DDZ9715Q-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 36 V
- Tolerance:
- ±5%
- Power - Max:
- 500 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
DDZ9715Q-7 FAQ
1.How can I place an order for DDZ9715Q-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ9715Q-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 DDZ9715Q-7 reliable?
The price and inventory of DDZ9715Q-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ9715Q-7 is usually 5 days.
3.What payment methods are accepted for DDZ9715Q-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ9715Q-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ9715Q-7?
DDZ9715Q-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ9715Q-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 DDZ9715Q-7?
For technical support, including DDZ9715Q-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ9715Q-7 requirements.
6.How does Aetrix verify that DDZ9715Q-7 is sourced from the original manufacturer or authorized distributors?
All DDZ9715Q-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 DDZ9715Q-7 meets industry standards.
7.What is the process for return or replacement of DDZ9715Q-7?
All DDZ9715Q-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ9715Q-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 DDZ9715Q-7 part is unused and in its original packaging.
Return procedure for DDZ9715Q-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZ9715Q-7 Tags
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Diodes Incorporated
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