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Diodes Incorporated DDZ13CSF-7
- Part No.:
- DDZ13CSF-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
DDZ13CSF-7.pdf
- Description:
- DIODE ZENER 13.33V 500MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:2,555
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Product details
Overview
DDZ13CSF-7 from Diodes Incorporated is a precision 0.5W surface-mount Zener diode in SOD323F package, delivering tightly regulated 12.99–13.66V zener voltage at 10mA test current, with 35Ω maximum zener impedance and ±0.07µA reverse leakage at 12.30V, used for voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the DDZ13CSF-7 datasheet, DDZ13CSF-7 pinout, DDZ13CSF-7 application, or DDZ13CSF-7 equivalent, key selection criteria include zener voltage tolerance (±2.6%), thermal resistance (250°C/W), RoHS-compliant green molding compound, and AEC-Q200 readiness for automotive-grade stability under thermal cycling.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable reference voltage across varying load and temperature conditions. Its 10mA zener test current and low dynamic impedance ensure minimal voltage deviation under transient load shifts.
Designed for FR-4 PCB mounting with 10mm × 10mm copper pad, it achieves 500mW power dissipation while maintaining junction temperature within -65°C to +150°C operating range. The cathode band marking and matte tin-plated terminals support automated reflow assembly per J-STD-020 Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.99–13.66 V at IZT = 10 mA - defines precise regulation window for feedback sensing |
| Power Dissipation (PD) | 500 mW on FR-4 PCB - sets maximum continuous power handling without derating below 25°C ambient |
| Zener Impedance (ZZT) | ≤35 Ω at f = 1 kHz - ensures low AC voltage variation during ripple rejection |
| Reverse Leakage (IR) | ≤0.07 µA at VR = 12.30 V - guarantees minimal quiescent current loss in high-impedance bias networks |
| Thermal Resistance (RθJA) | 250 °C/W - determines junction-to-ambient temperature rise per watt dissipated |
| Operating Temperature | -65°C to +150°C - supports extended-range industrial and under-hood automotive environments |
| Package | SOD323F - 2-pin surface-mount outline with 0.403 mm body height and 1.70 mm width for space-constrained layouts |
Pinout & Package
Package: SOD323F - ultra-compact plastic-molded case with cathode band marking; dimensions: 1.70 mm × 1.25 mm × 0.403 mm (L × W × H); weight ≈ 0.004 g; UL 94V-0 rated green molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node in shunt regulator configuration |
| Cathode | Zener breakdown terminal / voltage reference output | Connected to regulated node; cathode band identifies this terminal for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| Precision voltage regulation | ±2.6% VZ tolerance at 10 mA enables accurate feedback in 12V SMPS designs |
| Automated assembly compatibility | SOD323F footprint and matte tin annealed terminals ensure reliable reflow soldering per IPC-J-STD-001 |
| Environmental compliance | Fully RoHS 3 compliant (2015/863/EU), halogen- and antimony-free "Green" construction (<900 ppm Br/Cl, <1000 ppm Sb) |
| Thermal robustness | Rated for -65°C to +150°C operation with no derating up to 70°C ambient on standard FR-4 |
| Low leakage performance | 0.07 µA max reverse current at 95% of VZ minimizes error in high-resistance divider networks |
Applications
| DC-DC Converter Feedback | Overvoltage Protection Clamp |
|---|---|
|
Use Scenario: Regulating output voltage in isolated flyback or buck converter secondary-side feedback loop. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable 13.3V reference to optocoupler input or TL431 control pin. Use Value: Tight 2.6% VZ tolerance maintains ±1% output accuracy across line/load/temperature variations. |
Use Scenario: Clamping transient surges on 12V automotive sensor supply rail. IC Role / Device Role / Timing Role: Passive overvoltage clamp protecting downstream analog front-end ICs from >15V transients. Use Value: 35Ω zener impedance limits clamping voltage overshoot to <13.8V at 100mA surge current. |
| Reference Voltage Source | Temperature-Stable Bias Network |
|
Use Scenario: Generating precision bias for op-amp comparators in battery management systems. IC Role / Device Role / Timing Role: Low-drift voltage reference replacing larger TO-92 Zeners in compact BMS PCBs. Use Value: 250°C/W RθJA and tight VZ spec enable stable 13.3V reference across -40°C to +105°C ambient. |
Use Scenario: Setting bias point for NTC thermistor interface amplifier in HVAC control modules. IC Role / Device Role / Timing Role: Low-leakage (0.07 µA) reference element minimizing measurement error in high-impedance divider. Use Value: Sub-100nA reverse current prevents >0.1% gain error in 1MΩ bias networks at 12.3V reverse bias. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C13-7-F | 13V nominal, ±5% tolerance, 300mW rating, SOT-23 package | Higher VZ tolerance and lower power limit reduce accuracy in precision feedback | Select when cost sensitivity outweighs regulation accuracy and board space allows SOT-23 footprint |
| MMSZ5243B-7-F | 13V nominal, ±5% tolerance, 500mW rating, SOD-123 package | Larger SOD-123 footprint and wider VZ spread increase layout area and reference uncertainty | Choose only if legacy SOD-123 design reuse is required and ±5% VZ meets system margin |
Compared with BZX84-C13-7-F and MMSZ5243B-7-F, DDZ13CSF-7 delivers tighter voltage tolerance (±2.6% vs. ±5%), identical power rating but in smaller SOD323F package, and lower leakage-making it optimal for space-constrained, high-accuracy 12V–13V reference designs.
Availability
DDZ13CSF-7 is available at Aetrix Electronics and suitable for DC-DC converter feedback, overvoltage protection clamp, and reference voltage source applications requiring stable component supply across automotive, industrial, and consumer electronics production cycles.
Supply support for DDZ13CSF-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 North America.
This device belongs to Diodes' DDZ series of precision Zener diodes, engineered specifically for high-stability voltage reference and protection functions in space-constrained, thermally demanding power management circuits.
FAQ
What is the maximum steady-state power dissipation for DDZ13CSF-7 on a standard FR-4 PCB?
DDZ13CSF-7 is rated for 500 mW maximum power dissipation when mounted on an FR-4 PCB with a 10 mm × 10 mm copper pad and board size of 35 mm × 25 mm. Derating begins above 25°C ambient per the published power derating curve, reaching zero dissipation at 150°C ambient.
Does DDZ13CSF-7 meet automotive qualification standards?
DDZ13CSF-7 is manufactured in IATF 16949 certified facilities and supports PPAP documentation. While not pre-qualified to AEC-Q200 in this specific revision, its construction-green molding compound, matte tin terminals, and -65°C to +150°C operating range-aligns with AEC-Q200 stress test requirements; formal qualification requires customer-specific testing and approval.
How is polarity identified on the SOD323F package of DDZ13CSF-7?
Polarity is marked by a visible cathode band located at one end of the SOD323F package body. When viewed from the top with the cathode band on the left, the left pad is the cathode and the right pad is the anode-consistent with standard diode marking convention and confirmed in Diodes' package outline documentation.
What is the typical temperature coefficient for DDZ13CSF-7 near its nominal zener voltage?
Based on Diodes' Figure 3 (Temperature Coefficient vs. Zener Voltage), a 13.3V Zener exhibits a typical temperature coefficient of approximately +4.5 mV/°C. This positive TC means VZ increases linearly with temperature, enabling predictable compensation in bias networks where drift cancellation is required.
DDZ13CSF-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):
- 13.33 V
- Tolerance:
- ±3%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 35 Ohms
- Current - Reverse Leakage @ Vr:
- 70 nA @ 12.3 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
DDZ13CSF-7 FAQ
1.How can I place an order for DDZ13CSF-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ13CSF-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 DDZ13CSF-7 reliable?
The price and inventory of DDZ13CSF-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ13CSF-7 is usually 5 days.
3.What payment methods are accepted for DDZ13CSF-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ13CSF-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ13CSF-7?
DDZ13CSF-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ13CSF-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 DDZ13CSF-7?
For technical support, including DDZ13CSF-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ13CSF-7 requirements.
6.How does Aetrix verify that DDZ13CSF-7 is sourced from the original manufacturer or authorized distributors?
All DDZ13CSF-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 DDZ13CSF-7 meets industry standards.
7.What is the process for return or replacement of DDZ13CSF-7?
All DDZ13CSF-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ13CSF-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 DDZ13CSF-7 part is unused and in its original packaging.
Return procedure for DDZ13CSF-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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