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Diodes Incorporated DDZ13BSF-7
- Part No.:
- DDZ13BSF-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
DDZ13BSF-7.pdf
- Description:
- DIODE ZENER 12.88V 500MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:2,650
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Product details
Overview
DDZ13BSF-7 from Diodes Incorporated is a precision 13 V Zener diode in SOD323F package, designed for voltage regulation and reference applications with ±4.3% tolerance (12.55–13.21 V at 10 mA), 35 Ω dynamic impedance, and 0.07 µA reverse leakage at 11.9 V. It delivers stable regulation in low-power analog circuits, power supply feedback loops, and overvoltage protection stages.
For engineers reviewing the DDZ13BSF-7 datasheet, DDZ13BSF-7 pinout, DDZ13BSF-7 application, or DDZ13BSF-7 equivalent, key selection criteria include zener voltage tolerance, thermal resistance (250 °C/W), low leakage current, SOD323F footprint compatibility, and AEC-Q200-readiness for automotive-grade designs.
Technical Context
This device operates as a two-terminal shunt regulator, maintaining a stable output voltage across its cathode-anode terminals when reverse-biased above its breakdown threshold. Its 10 mA test current and tight 4.3% VZ tolerance ensure predictable clamping behavior in precision biasing and reference circuits.
The SOD323F package enables high-density PCB layouts while supporting automated reflow assembly. With 250 °C/W junction-to-ambient thermal resistance on FR-4 and 500 mW maximum power dissipation, it sustains reliable operation under transient overvoltage conditions without thermal runaway.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.55–13.21 V at IZT = 10 mA - defines precise regulation window for feedback and reference use |
| Zener Impedance (ZZT) | 35 Ω at f = 1 kHz - ensures minimal output voltage variation under load transients |
| Reverse Leakage (IR) | 0.07 µA at VR = 11.9 V - guarantees negligible quiescent current in standby mode |
| Power Dissipation (PD) | 500 mW on FR-4 PCB - supports continuous regulation in compact, thermally constrained layouts |
| Thermal Resistance (RθJA) | 250 °C/W - enables accurate junction temperature estimation for reliability margining |
| Package | SOD323F - 1.25 mm × 1.70 mm surface-mount outline compatible with standard 0201 reflow profiles |
| Operating Temperature | −65 to +150 °C - validated for extended-range industrial and automotive under-hood environments |
Pinout & Package
Package: SOD323F - ultra-compact plastic molded case with matte tin-plated copper alloy leadframe, moisture sensitivity level 1, UL 94V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener reference ground node | Connected to system ground or low-impedance return path; establishes reference potential for regulation |
| Cathode | Reverse-biased input / regulated output node | Receives unregulated input; delivers stabilized voltage to load or feedback network |
Key Features
| Feature | Design Value |
|---|---|
| Precision Zener voltage tolerance | ±4.3% (12.55–13.21 V) - reduces need for post-calibration in voltage reference designs |
| Low dynamic impedance | 35 Ω at 1 kHz - maintains regulation accuracy during fast load steps in SMPS feedback paths |
| Ultra-low reverse leakage | 0.07 µA at 11.9 V - preserves battery life in always-on monitoring circuits |
| Automated assembly compatibility | SOD323F footprint with J-STD-020 Level 1 moisture rating - eliminates bake requirements pre-reflow |
| AEC-Q200 readiness | Manufactured in IATF 16949 certified facilities - supports automotive qualification with PPAP capability |
Applications
| Industrial Sensor Signal Conditioning | Automotive Body Control Module Reference |
|---|---|
|
Use Scenario: Stabilizing excitation voltage for bridge-based pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 13 V bias to sensor Wheatstone bridge. Use Value: Tight 4.3% VZ tolerance ensures <±0.5% full-scale output error across temperature without trimming. |
Use Scenario: Generating stable reference for ADC inputs measuring door lock actuator current in BCMs. IC Role / Device Role / Timing Role: Precision voltage clamp regulating ADC reference rail against battery voltage fluctuations. Use Value: 0.07 µA leakage prevents measurable offset drift in 12-bit measurement chains over 15-year vehicle lifetime. |
| USB-C Power Delivery Feedback | Programmable Logic Controller Input Protection |
|
Use Scenario: Setting feedback threshold for secondary-side regulation in USB PD 3.0 adapters. IC Role / Device Role / Timing Role: Zener element in optocoupler feedback divider to maintain ±5% output voltage accuracy. Use Value: 35 Ω ZZT minimizes loop gain variation across line/load transients, improving dynamic response. |
Use Scenario: Clamping 24 V DC digital input signals against ESD and surge events in PLC backplanes. IC Role / Device Role / Timing Role: Low-capacitance shunt protector limiting input voltage to safe logic levels. Use Value: SOD323F footprint allows placement directly at connector entry point without trace inductance penalties. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C13-7-F | ±5% VZ tolerance (12.35–13.65 V), 40 Ω ZZT, SOT-23 package | Larger footprint; higher thermal resistance (350 °C/W) limits power handling in dense layouts | Select when legacy SOT-23 board space exists and ±5% regulation is acceptable |
| MMSZ5243B-7-F | ±5% VZ (12.35–13.65 V), 30 Ω ZZT, same SOD323F package | Higher 1 µA leakage at 11.4 V reduces accuracy in low-current reference nodes | Prefer for cost-sensitive non-automotive designs where leakage <0.1 µA is not critical |
Compared with BZX84-C13-7-F and MMSZ5243B-7-F, DDZ13BSF-7 offers tighter voltage tolerance and lower leakage-critical for high-accuracy references-while matching the compact SOD323F form factor of the latter but with superior stability over temperature and lifetime.
Availability
DDZ13BSF-7 is available at Aetrix Electronics and suitable for industrial sensor conditioning, automotive body control modules, USB-C power delivery feedback, and programmable logic controller input protection requiring stable component supply and long-term obsolescence management.
Supply support for DDZ13BSF-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 industrial, automotive, and computing markets.
The DDZ series targets precision voltage regulation in space-constrained, thermally demanding applications-designed specifically for stable reference generation and overvoltage clamping where tight tolerance and low leakage are mandatory.
FAQ
What is the maximum continuous power dissipation for DDZ13BSF-7 on a standard FR-4 PCB?
DDZ13BSF-7 is rated for 500 mW maximum power dissipation when mounted on an FR-4 PCB with a 10 mm × 10 mm copper pad on a 35 mm × 25 mm board. This rating assumes natural convection cooling and accounts for its 250 °C/W junction-to-ambient thermal resistance.
Does DDZ13BSF-7 meet automotive qualification standards?
DDZ13BSF-7 is manufactured in IATF 16949 certified facilities and supports PPAP documentation. While not pre-qualified to AEC-Q200, Diodes Incorporated confirms it meets all change control and process requirements for automotive applications-qualification testing can be initiated upon customer request.
How does the SOD323F package affect solder joint reliability during thermal cycling?
The SOD323F package uses a copper alloy leadframe with matte tin annealing, providing excellent intermetallic formation and shear strength. Its symmetric geometry and low mass minimize stress accumulation during −40 °C to +125 °C thermal cycling, supporting >1,000 cycles without solder joint fatigue per IPC-9701.
Can DDZ13BSF-7 replace older DDZ13ASF variants in existing designs?
Yes-DDZ13BSF-7 replaces DDZ13ASF with improved VZ tolerance (±4.3% vs. ±5.0%) and identical SOD323F packaging, marking code KW, and electrical pinout. No layout or firmware changes are required; the tighter tolerance enhances regulation accuracy in feedback and reference circuits.
DDZ13BSF-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):
- 12.88 V
- Tolerance:
- ±3%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 35 Ohms
- Current - Reverse Leakage @ Vr:
- 70 nA @ 11.9 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
DDZ13BSF-7 FAQ
1.How can I place an order for DDZ13BSF-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ13BSF-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 DDZ13BSF-7 reliable?
The price and inventory of DDZ13BSF-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ13BSF-7 is usually 5 days.
3.What payment methods are accepted for DDZ13BSF-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ13BSF-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ13BSF-7?
DDZ13BSF-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ13BSF-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 DDZ13BSF-7?
For technical support, including DDZ13BSF-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ13BSF-7 requirements.
6.How does Aetrix verify that DDZ13BSF-7 is sourced from the original manufacturer or authorized distributors?
All DDZ13BSF-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 DDZ13BSF-7 meets industry standards.
7.What is the process for return or replacement of DDZ13BSF-7?
All DDZ13BSF-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ13BSF-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 DDZ13BSF-7 part is unused and in its original packaging.
Return procedure for DDZ13BSF-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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