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Diodes Incorporated DDZ15CSF-7
- Part No.:
- DDZ15CSF-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
DDZ15CSF-7.pdf
- Description:
- DIODE ZENER 14.72V 500MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:4,522
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Product details
Overview
DDZ15CSF-7 from Diodes Incorporated is a precision 0.5W surface-mount Zener diode in SOD323F package, delivering tightly regulated 14.35–15.09V breakdown voltage at 10mA test current, with 40Ω max zener impedance and <0.07µA reverse leakage at 13.6V, used for voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the DDZ15CSF-7 datasheet, DDZ15CSF-7 pinout, DDZ15CSF-7 application, or DDZ15CSF-7 equivalent, this part supports stable low-power voltage regulation in space-constrained industrial and automotive subsystems where thermal resistance (250°C/W) and AEC-Q200-aligned manufacturing are critical selection criteria.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain a stable reference voltage across its cathode-anode terminals. Its 10mA zener test current and 40Ω dynamic impedance ensure predictable regulation under varying load conditions.
The device exhibits a temperature coefficient of approximately +5.5 mV/°C near 15V (per Fig. 3), enabling predictable drift compensation in analog circuits. It is rated for continuous operation from –65°C to +150°C with full derating above 75°C per the published power derating curve.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14.35–15.09 V at IZT = 10 mA - defines precise regulation window for feedback networks |
| Power Dissipation (PD) | 500 mW on FR-4 PCB - sets maximum steady-state power handling in standard layout |
| Zener Impedance (ZZT) | ≤40 Ω at f = 1 kHz - ensures minimal output voltage variation under dynamic load transients |
| Reverse Leakage (IR) | <0.07 µA at VR = 13.6 V - guarantees negligible error current in high-impedance reference paths |
| Thermal Resistance (RθJA) | 250 °C/W - determines junction temperature rise under given ambient and power conditions |
| Operating Temperature | –65°C to +150°C - supports deployment in under-hood automotive and industrial environments |
Pinout & Package
Package: SOD323F - ultra-compact surface-mount plastic package (2.50 mm × 1.70 mm × 1.25 mm), molded with halogen-free green compound, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground node | Connected to circuit ground or low-side reference point in shunt regulator topology |
| Cathode | Zener breakdown terminal / voltage reference output | Connected to regulated node; voltage develops across cathode-to-anode when reverse biased |
Key Features
| Feature | Design Value |
|---|---|
| Precision Zener voltage tolerance | ±2.5% typical spread (14.35–15.09V range) enables accurate closed-loop feedback without trimming |
| Low thermal resistance packaging | 250°C/W RθJA allows reliable 500mW operation on standard FR-4 with minimal heatsinking |
| Automated assembly compatibility | SOD323F footprint and matte tin finish support high-yield reflow soldering per J-STD-020 |
| Environmental compliance | Fully RoHS 3 compliant, halogen- and antimony-free ("Green"), no purposely added lead |
Applications
| Industrial Power Supply Feedback | Automotive Body Control Module Reference |
|---|---|
Use Scenario: Regulating 15V rail in isolated DC-DC converter secondary side. IC Role / Device Role / Timing Role: Shunt voltage reference for TL431-like feedback loop. Use Value: Tight 14.35–15.09V tolerance minimizes output voltage deviation across temperature and line variations. |
Use Scenario: Providing stable reference for LIN bus transceiver biasing in door module. IC Role / Device Role / Timing Role: Precision voltage clamp for analog sensor interface IC supply rails. Use Value: Sub-0.07µA leakage prevents loading of high-impedance bias networks at cold start (–40°C). |
| Medical Sensor Signal Conditioning | Telecom Line Card Overvoltage Protection |
Use Scenario: Biasing op-amp input stage in portable ECG front-end amplifier. IC Role / Device Role / Timing Role: Low-noise voltage reference for ADC driver common-mode setting. Use Value: 40Ω zener impedance suppresses noise coupling into sensitive analog signal path. |
Use Scenario: Clamping transient surges on 12V auxiliary power rail in base station line card. IC Role / Device Role / Timing Role: Fast-response shunt protector triggered by >15.09V overvoltage events. Use Value: 500mW rating sustains 8/20µs surge pulses without degradation in repeated fault conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C15LT1G | 14.3–15.7V range, 300mW rating, SOT-23 package, 50Ω ZZT | Higher power dissipation required due to lower PD; larger footprint limits board density | Select when legacy SOT-23 layout exists and 300mW suffices |
| MMSZ5245B-TP | 14.25–15.75V range, 500mW, SOD-123 package, 30Ω ZZT, higher leakage (≤5µA @ 12.2V) | Lower impedance improves regulation but higher IR degrades high-Z reference accuracy | Prefer for low-impedance loads where leakage is not critical |
Compared with DDZ15CSF-7, BZX84-C15LT1G offers broader voltage tolerance but reduced power margin, while MMSZ5245B-TP delivers lower impedance at the cost of significantly higher reverse leakage-making DDZ15CSF-7 optimal for precision, low-leakage, thermally constrained designs.
Availability
DDZ15CSF-7 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, medical sensor interfaces, and telecom line card protection requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for DDZ15CSF-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 components for automotive, industrial, and computing markets.
This part belongs to the DDZxx(x)SF precision Zener series, engineered for tight-tolerance voltage referencing in automated SMT production environments with emphasis on thermal stability and environmental compliance.
FAQ
What is the maximum continuous reverse voltage that DDZ15CSF-7 can safely clamp?
The device is rated for continuous operation up to its nominal zener voltage range (14.35–15.09V) at 10mA. For clamping transients, it withstands peak reverse voltages up to 15.09V without breakdown deviation; sustained operation above this requires current limiting to stay within 500mW power limit and thermal derating curves.
Does DDZ15CSF-7 meet AEC-Q200 requirements for passive components?
While not individually qualified to AEC-Q200, DDZ15CSF-7 is manufactured in IATF 16949 certified facilities and designed for automotive applications requiring change control; Diodes states that parts qualified to AEC-Q200 are available upon request and PPAP capable-confirm specific qualification status with Diodes' automotive team before design-in.
How does the SOD323F package affect thermal performance compared to SOD-123?
SOD323F has higher thermal resistance (250°C/W vs. ~200°C/W for SOD-123) due to smaller pad area and thinner mold compound, resulting in ~25% greater junction temperature rise at 500mW; this necessitates careful PCB copper area design and ambient temperature derating above 75°C per Figure 1.
Can DDZ15CSF-7 replace DDZ15BSF in an existing design?
Yes-both share identical SOD323F package, 10mA test current, and 40Ω max zener impedance, but DDZ15CSF-7 offers a higher nominal zener voltage (14.35–15.09V vs. 13.89–14.62V for BSF), so verify system tolerance margins; forward voltage and thermal specs are identical, ensuring drop-in mechanical and thermal compatibility.
DDZ15CSF-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 14.72 V
- Tolerance:
- ±3%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 70 nA @ 13.6 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
DDZ15CSF-7 FAQ
1.How can I place an order for DDZ15CSF-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ15CSF-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 DDZ15CSF-7 reliable?
The price and inventory of DDZ15CSF-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ15CSF-7 is usually 5 days.
3.What payment methods are accepted for DDZ15CSF-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ15CSF-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ15CSF-7?
DDZ15CSF-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ15CSF-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 DDZ15CSF-7?
For technical support, including DDZ15CSF-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ15CSF-7 requirements.
6.How does Aetrix verify that DDZ15CSF-7 is sourced from the original manufacturer or authorized distributors?
All DDZ15CSF-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 DDZ15CSF-7 meets industry standards.
7.What is the process for return or replacement of DDZ15CSF-7?
All DDZ15CSF-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ15CSF-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 DDZ15CSF-7 part is unused and in its original packaging.
Return procedure for DDZ15CSF-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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