My Inquiry
My Account
Diodes Incorporated DDZ16BSF-7
- Part No.:
- DDZ16BSF-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
DDZ16BSF-7.pdf
- Description:
- DIODE ZENER 15.65V 500MW SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:5,012
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DDZ16BSF-7 from Diodes Incorporated is a precision 0.5W surface-mount Zener diode in SOD323F package, delivering tightly regulated 15.25–16.04 V zener voltage at 10 mA test current, with 40 Ω max zener impedance and ±0.07 µA reverse leakage at 14.5 V, used for voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the DDZ16BSF-7 datasheet, DDZ16BSF-7 pinout, DDZ16BSF-7 application, or DDZ16BSF-7 equivalent, this part supports stable voltage regulation in compact DC-DC converters, analog sensor biasing circuits, and automotive body control modules where tight VZ tolerance and low thermal resistance (250 °C/W) are critical.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal zener voltage of 15.65 V (typical), specified at IZT = 10 mA and measured within 40 ms to minimize self-heating effects. Its temperature coefficient is approximately +5.5 mV/°C near 16 V, enabling predictable drift compensation in reference designs.
The device uses a planar epitaxial construction with cathode band marking, optimized for automated pick-and-place assembly on FR-4 PCBs. It achieves 500 mW power dissipation under standard JEDEC mounting conditions (10 mm × 10 mm pad on 35 mm × 25 mm board) and meets AEC-Q101 stress testing requirements for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.25–16.04 V @ IZT = 10 mA - ensures precise voltage clamping in feedback networks with ±2.5% tolerance. |
| Power Dissipation (PD) | 500 mW on FR-4 - supports continuous operation in space-constrained power rails without forced cooling. |
| Zener Impedance (ZZT) | ≤40 Ω @ f = 1 kHz - maintains low AC impedance for stable regulation under dynamic load transients. |
| Reverse Leakage (IR) | ≤0.07 µA @ VR = 14.5 V - minimizes quiescent current loss in battery-powered reference circuits. |
| Thermal Resistance (RθJA) | 250 °C/W - enables thermal design margin up to +125°C ambient in industrial environments. |
| Package | SOD323F - 2.5 mm × 1.7 mm footprint with 0.4 mm lead pitch, compatible with 0402 reflow profiles. |
| RoHS Compliance | Fully lead-free, halogen- and antimony-free "Green" compound - meets EU Directive 2015/863/EU and IATF 16949 manufacturing standards. |
Pinout & Package
Package: SOD323F - molded plastic, UL 94V-0 rated, moisture sensitivity level 1 per J-STD-020, cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system GND or feedback divider low-side; defines reverse-bias polarity for Zener operation. |
| Cathode | Zener output node | Connected to regulated voltage point (e.g., feedback pin of DC-DC controller); carries full Zener current during regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Tight VZ tolerance | ±2.5% at 10 mA - reduces calibration overhead in precision analog signal chains. |
| Low thermal resistance | 250 °C/W - allows direct integration into thermally dense power management IC layouts without heatsinking. |
| Automated assembly compatibility | SOD323F tape-and-reel packaging (3,000 pcs/reel) - supports high-speed placement with <0.1% misalignment rate. |
| AEC-Q101 qualification readiness | Manufactured in IATF 16949 certified facilities - enables drop-in use in automotive body electronics without additional qualification. |
| Halogen-free green compound | <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - satisfies Tier-1 OEM environmental compliance mandates for EV power systems. |
Applications
| Power Supply Feedback Reference | Overvoltage Protection Clamp |
|---|---|
|
Use Scenario: Regulating output voltage of isolated flyback converter via TL431-compatible feedback network. IC Role / Device Role / Timing Role: Provides stable 15.65 V reference to optocoupler input, setting primary-side duty cycle. Use Value: Maintains ±1% output accuracy across –40°C to +125°C due to matched TC and low ZZT. |
Use Scenario: Protecting microcontroller I/O pins from transient surges in 12 V automotive CAN bus nodes. IC Role / Device Role / Timing Role: Shunts excess energy above 16.04 V to ground before ESD event damages downstream logic. Use Value: Limits clamping voltage to ≤16.5 V with <0.07 µA leakage, preserving low-power sleep mode integrity. |
| Analog Sensor Biasing | Industrial Current Loop Reference |
|
Use Scenario: Supplying excitation voltage to RTD bridge in programmable logic controller (PLC) analog input module. IC Role / Device Role / Timing Role: Acts as low-noise, low-drift voltage source for Wheatstone bridge biasing. Use Value: Delivers <10 ppm/°C effective TC when paired with matched resistor dividers, enabling 0.1°C temperature resolution. |
Use Scenario: Setting 4–20 mA loop compliance voltage in HART-enabled field transmitter. IC Role / Device Role / Timing Role: Stabilizes reference node for DAC output stage driving current-sense amplifier. Use Value: Ensures loop voltage remains ≥16 V across full temperature range, preventing dropout below 12 V minimum spec. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C16LT1G | 16 V nominal, ±5% tolerance, 350 mW rating, SOT-23 package | Larger footprint (2.9 mm × 1.3 mm), higher RθJA (350 °C/W), wider VZ spread | Select when legacy SOT-23 layout reuse is required and ±5% regulation tolerance is acceptable. |
| MMSZ5245B-TP | 16 V nominal, ±5% tolerance, 500 mW rating, SOD-123 package | 0.1 mm taller (1.3 mm vs. 1.2 mm), 0.15 mm wider (1.8 mm vs. 1.7 mm), no AEC-Q101 support | Choose for cost-sensitive industrial designs where automotive qualification is not mandated. |
Compared with BZX84-C16LT1G and MMSZ5245B-TP, DDZ16BSF-7 offers tighter VZ tolerance (±2.5% vs. ±5%), lower thermal resistance (250 vs. ≥350 °C/W), and AEC-Q101 readiness-making it optimal for next-generation automotive and high-accuracy industrial references.
Availability
DDZ16BSF-7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC analog inputs, and medical-grade power supply feedback circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DDZ16BSF-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 centers across Asia and manufacturing in IATF 16949-certified facilities.
This device belongs to the DDZxxBSF precision Zener series, engineered specifically for high-stability voltage referencing in automotive and industrial power management systems where tight tolerance and thermal predictability are mandatory.
FAQ
What is the maximum steady-state power dissipation for DDZ16BSF-7?
The DDZ16BSF-7 is rated for 500 mW power dissipation when mounted on a standard FR-4 PCB with a 10 mm × 10 mm copper pad on a 35 mm × 25 mm board. Derating begins linearly above +25°C ambient, reaching zero at +150°C per the published power derating curve.
Does DDZ16BSF-7 have automotive qualification?
DDZ16BSF-7 is manufactured in IATF 16949-certified facilities and supports PPAP documentation. While not pre-qualified to AEC-Q101 out-of-box, Diodes Incorporated confirms it meets all AEC-Q101 stress test requirements-including HTGB, TCT, and H3TRB-when tested per customer request.
How is the cathode identified on the SOD323F package?
The cathode is marked by a visible band on the top surface of the SOD323F package, aligned with one end of the rectangular body. In top view, the band corresponds to the cathode terminal; the opposite end is the anode. This matches JEDEC-standard SOD323F pin orientation.
Can DDZ16BSF-7 replace older DDZ16ASF variants in existing designs?
Yes-DDZ16BSF-7 replaces DDZ16ASF with improved VZ tolerance (±2.5% vs. ±3.5%) and identical SOD323F package, pinout, and thermal characteristics. No layout or schematic changes are needed; only update the bill of materials and verify performance under worst-case temperature and current conditions.
DDZ16BSF-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):
- 15.65 V
- Tolerance:
- ±3%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 70 nA @ 14.5 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
DDZ16BSF-7 FAQ
1.How can I place an order for DDZ16BSF-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ16BSF-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 DDZ16BSF-7 reliable?
The price and inventory of DDZ16BSF-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ16BSF-7 is usually 5 days.
3.What payment methods are accepted for DDZ16BSF-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ16BSF-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ16BSF-7?
DDZ16BSF-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ16BSF-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 DDZ16BSF-7?
For technical support, including DDZ16BSF-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ16BSF-7 requirements.
6.How does Aetrix verify that DDZ16BSF-7 is sourced from the original manufacturer or authorized distributors?
All DDZ16BSF-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 DDZ16BSF-7 meets industry standards.
7.What is the process for return or replacement of DDZ16BSF-7?
All DDZ16BSF-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ16BSF-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 DDZ16BSF-7 part is unused and in its original packaging.
Return procedure for DDZ16BSF-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZ16BSF-7 Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
