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Diodes Incorporated DDZ16CSF-7
- Part No.:
- DDZ16CSF-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
DDZ16CSF-7.pdf
- Description:
- DIODE ZENER 16.1V 500MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:18,074
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Product details
Overview
DDZ16CSF-7 from Diodes Incorporated is a precision 0.5W surface-mount Zener diode in SOD323F package, delivering a nominal zener voltage of 15.69–16.51 V at 10 mA test current, with 0.07 µA maximum reverse leakage at 14.9 V and 50 Ω typical zener impedance at 1 kHz. It serves as a stable voltage reference or overvoltage clamp in low-power analog and power management circuits.
For engineers reviewing the DDZ16CSF-7 datasheet, DDZ16CSF-7 pinout, DDZ16CSF-7 application, or DDZ16CSF-7 equivalent, key selection criteria include tight VZ tolerance (±2.6% at 15.69–16.51 V), low thermal resistance (250 °C/W), automotive-grade process qualification, and SOD323F footprint compatibility with high-density PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain precise DC voltage regulation under varying load and temperature conditions. Its 10 mA zener test current and 50 Ω dynamic impedance ensure stable regulation across ambient temperatures from –65 °C to +150 °C.
The device uses a silicon planar junction structure with cathode band marking, optimized for automated pick-and-place assembly. Its 250 °C/W junction-to-ambient thermal resistance is measured on FR-4 PCB with 10 mm × 10 mm copper pad, enabling reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.69–16.51 V @ IZT = 10 mA - defines regulated output voltage range for reference or clamping |
| Power Dissipation (PD) | 500 mW - maximum continuous power handling on standard FR-4 PCB |
| Zener Impedance (ZZT) | 40 Ω @ f = 1 kHz - low dynamic resistance ensures minimal voltage variation under load transients |
| Reverse Leakage (IR) | 0.07 µA @ VR = 14.9 V - ultra-low leakage preserves accuracy in high-impedance bias networks |
| Thermal Resistance (RθJA) | 250 °C/W - enables thermal design margin for operation up to +150 °C ambient |
| Operating Temperature | –65 °C to +150 °C - supports industrial and automotive under-hood applications |
| Package | SOD323F - 1.25 mm × 1.70 mm surface-mount footprint with cathode band marking |
Pinout & Package
Package: SOD323F - molded plastic, halogen- and antimony-free "Green" compound, UL 94V-0 rated, moisture sensitivity level 1 per J-STD-020. Cathode terminal identified by band marking on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener reference ground node | Connected to circuit ground or lower-potential rail during reverse-bias regulation |
| Cathode | Zener breakdown terminal / regulated output node | Provides stable voltage referenced to anode; marked with visible band on package top |
Key Features
| Feature | Design Value |
|---|---|
| Precision Zener voltage tolerance | ±2.6% (15.69–16.51 V) - reduces need for external trimming in voltage reference designs |
| Low thermal resistance | 250 °C/W - allows full 500 mW power dissipation without derating below +70 °C ambient |
| Automated assembly compatibility | SOD323F footprint with matte tin annealed terminals - ensures reliable solder wetting and reflow yield |
| Environmental compliance | Fully RoHS 3 compliant, halogen- and antimony-free - meets automotive and industrial environmental mandates |
| High-temperature operation | Rated to +150 °C junction temperature - suitable for engine control units and power supply feedback loops |
Applications
| Industrial Sensor Signal Conditioning | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Stabilizing excitation voltage for bridge-based pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: Precision voltage reference for ADC biasing and sensor excitation. Use Value: ±2.6% VZ tolerance and 0.07 µA leakage minimize offset drift and improve 16-bit measurement repeatability. |
Use Scenario: Overvoltage protection for LIN bus transceiver power rails in door module ECUs. IC Role / Device Role / Timing Role: Clamp diode limiting supply rail to 16.5 V during load-dump events. Use Value: 500 mW rating and 40 Ω ZZT enable fast response to 100 ms transients without thermal runaway. |
| Medical Portable Device Power Monitoring | Telecom PoE Interface Protection |
|
Use Scenario: Reference voltage generation for battery voltage monitoring in handheld diagnostic tools. IC Role / Device Role / Timing Role: Low-leakage voltage reference for microcontroller ADC input scaling. Use Value: 0.07 µA reverse leakage at 14.9 V prevents measurable error in high-impedance divider networks. |
Use Scenario: Secondary-side voltage clamping on 48 V PoE data line interface circuits. IC Role / Device Role / Timing Role: Transient suppressor protecting Ethernet PHY power pins. Use Value: SOD323F footprint enables placement adjacent to RJ45 connector with minimal parasitic inductance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C16LT1G | 16.0 V nominal VZ, ±5% tolerance, 350 mW PD, SOT-23 package | Larger footprint, higher leakage (1 µA @ 12.8 V), less stable over temperature | Select when cost sensitivity outweighs precision and thermal performance requirements |
| MMSZ5245B-TP | 16 V nominal VZ, ±5% tolerance, 500 mW PD, SOD-123 package | 1.8 mm × 1.4 mm footprint (vs. 1.25 × 1.70 mm), 100 Ω ZZT, no AEC-Q200 qualification | Choose for legacy SOD-123 board reuse where tighter VZ tolerance is not required |
Compared with BZX84-C16LT1G and MMSZ5245B-TP, DDZ16CSF-7 delivers superior voltage accuracy (±2.6% vs. ±5%), lower dynamic impedance (40 Ω vs. ≥100 Ω), and automotive-process qualification-making it optimal for high-reliability reference and clamping where stability and miniaturization are critical.
Availability
DDZ16CSF-7 is available at Aetrix Electronics and suitable for industrial sensor conditioning, automotive body control modules, medical portable device monitoring, and telecom PoE interface protection requiring stable component supply and long-term lifecycle support.
Supply support for DDZ16CSF-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.
DDZ16CSF-7 belongs to the DDZxx(x)SF precision Zener series, designed specifically for stable voltage reference and overvoltage protection in space-constrained, thermally demanding applications.
FAQ
What is the maximum continuous power dissipation for DDZ16CSF-7 on a standard PCB?
DDZ16CSF-7 is rated for 500 mW continuous power dissipation when mounted on an FR-4 PCB with a 10 mm × 10 mm copper pad and board dimensions of 35 mm × 25 mm. Derating begins above +70 °C ambient per the published power derating curve, reaching zero dissipation at +150 °C ambient.
Does DDZ16CSF-7 meet automotive qualification standards?
DDZ16CSF-7 is manufactured in IATF 16949 certified facilities and supports PPAP documentation. While not pre-qualified to AEC-Q200 in this specific part number listing, its process flow and material set align with automotive change control requirements-customers requiring formal AEC-Q200 certification should contact Diodes Incorporated directly for qualified variants.
How is the cathode terminal identified on the SOD323F package?
The cathode terminal of DDZ16CSF-7 is marked by a visible band on the top surface of the SOD323F package. This band corresponds to the cathode pin in the top-view mechanical drawing and must be oriented toward the higher-potential node in reverse-bias Zener operation.
What is the typical zener impedance and why does it matter for reference stability?
DDZ16CSF-7 has a typical zener impedance of 40 Ω at 1 kHz and 10 mA test current. This low dynamic resistance minimizes output voltage variation under changing load currents-critical for maintaining ADC reference accuracy or clamping effectiveness during transient events in power rails.
DDZ16CSF-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):
- 16.1 V
- Tolerance:
- ±3%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 70 nA @ 14.9 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
DDZ16CSF-7 FAQ
1.How can I place an order for DDZ16CSF-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ16CSF-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 DDZ16CSF-7 reliable?
The price and inventory of DDZ16CSF-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ16CSF-7 is usually 5 days.
3.What payment methods are accepted for DDZ16CSF-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ16CSF-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ16CSF-7?
DDZ16CSF-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ16CSF-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 DDZ16CSF-7?
For technical support, including DDZ16CSF-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ16CSF-7 requirements.
6.How does Aetrix verify that DDZ16CSF-7 is sourced from the original manufacturer or authorized distributors?
All DDZ16CSF-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 DDZ16CSF-7 meets industry standards.
7.What is the process for return or replacement of DDZ16CSF-7?
All DDZ16CSF-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ16CSF-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 DDZ16CSF-7 part is unused and in its original packaging.
Return procedure for DDZ16CSF-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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