My Inquiry
My Account
Diodes Incorporated DDZ9703S-7
- Part No.:
- DDZ9703S-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
DDZ9703S-7.pdf
- Description:
- DIODE ZENER 16V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:7,059
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DDZ9703S-7 from Diodes Incorporated is a surface-mount precision Zener diode with nominal Zener voltage of 16 V, ±3.1% tolerance (15.2–16.8 V), 50 μA test current, and 0.05 μA maximum reverse leakage at 12.1 V. It delivers sharp breakdown characteristics and low thermal resistance (625 °C/W) in SOD-323 package, used for voltage regulation and reference in power supply feedback loops.
For engineers reviewing the DDZ9703S-7 datasheet, DDZ9703S-7 pinout, DDZ9703S-7 application, or DDZ9703S-7 equivalent, key selection criteria include Zener voltage tolerance, temperature coefficient (≈+0.07 %/°C per Fig. 18), low leakage, SOD-323 footprint compatibility, and RoHS-compliant "Green" construction for automated assembly.
Technical Context
This device operates as a two-terminal voltage reference, maintaining stable reverse-biased conduction above its specified Zener voltage. Its sharp breakdown and tight 3.1% VZ tolerance enable accurate regulation in low-power analog circuits and feedback networks.
Designed for thermal stability, it exhibits a positive temperature coefficient (~+0.07 %/°C) typical for 16 V Zeners (per Fig. 18), and derates linearly to zero power at 150 °C ambient when mounted on FR-4 with recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16 V nominal, 15.2–16.8 V range at IZT = 50 μA - ensures precise voltage clamping in reference designs |
| Reverse Leakage (IR) | ≤0.05 μA at VR = 12.1 V - minimizes error current in high-impedance bias networks |
| Power Dissipation (PD) | 200 mW at TA = 25 °C - supports continuous operation in compact PCB layouts with adequate copper area |
| Thermal Resistance (RθJA) | 625 °C/W - defines junction-to-ambient rise per watt; requires thermal pad design per AP02001 |
| Package | SOD-323 - 2.3–2.7 mm length, 1.2–1.4 mm width, 0.25–0.35 mm thickness - compatible with 0805-class pick-and-place |
| Operating Temperature | −65 to +150 °C - suitable for industrial and automotive under-hood environments |
Pinout & Package
SOD-323 plastic surface-mount package with cathode band marking; terminals are anode and cathode, with cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to circuit common; establishes reference potential for Zener conduction path |
| Cathode | Regulated output node | Provides stable 16 V relative to anode when reverse biased above VZ |
Key Features
| Feature | Design Value |
|---|---|
| Very sharp breakdown | Low dynamic impedance (<150 Ω at 1 mA, per Fig. 13) enables fast transient response in regulation |
| Tight VZ tolerance | ±3.1% (15.2–16.8 V) reduces need for post-production trimming in voltage reference circuits |
| Low leakage current | ≤0.05 μA at 12.1 V allows use in nanoampere-bias applications like precision comparators |
| RoHS & "Green" compliant | Lead-free matte tin finish and halogen-free molding compound meet IPC-1752 and JEDEC J-STD-020 |
Applications
| Power Supply Feedback Reference | Overvoltage Protection Clamp |
|---|---|
|
Use Scenario: Regulating output voltage in isolated flyback converters using optocoupler feedback. IC Role / Device Role / Timing Role: Zener diode provides precise 16 V reference to TL431 shunt regulator input. Use Value: Tight 3.1% VZ tolerance directly improves overall output voltage accuracy to ±1.5% without calibration. |
Use Scenario: Protecting microcontroller I/O pins from ESD-induced transients on 15 V sensor lines. IC Role / Device Role / Timing Role: Clamps voltage spikes above 16 V to prevent latch-up or gate oxide damage. Use Value: 0.05 μA leakage avoids loading high-impedance sensor outputs during normal operation. |
| Temperature-Stable Voltage Reference | Low-Power Battery Monitor Threshold |
|
Use Scenario: Generating stable bias for op-amp input stages in industrial instrumentation amplifiers. IC Role / Device Role / Timing Role: Provides fixed 16 V reference with +0.07 %/°C TC, compensated via resistor network. Use Value: Sharp knee and low impedance (<200 Ω) minimize drift-induced offset errors across −40 to +85 °C. |
Use Scenario: Detecting end-of-charge condition in 12 V LiFePO4 battery packs. IC Role / Device Role / Timing Role: Triggers comparator when battery voltage exceeds 16 V threshold during charging. Use Value: SOD-323 footprint enables placement near battery connector with minimal trace inductance for fast response. |
Availability
DDZ9703S-7 is available at Aetrix Electronics and suitable for power supply feedback reference, overvoltage protection clamp, and low-power battery monitor threshold applications requiring stable component supply and full RoHS compliance.
Supply support for DDZ9703S-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 and manufacturing operations across Asia and the Americas.
The DDZ9689S–DDZ9717S series belongs to Diodes' precision Zener diode product line, engineered for high-accuracy voltage reference and regulation in space-constrained, high-reliability applications.
FAQ
What is the Zener test current (IZT) for DDZ9703S-7?
The Zener test current is 50 μA, as specified in the Electrical Characteristics table. This current establishes the nominal 16 V Zener voltage measurement point under thermal equilibrium at 30 °C, and is the standard condition for verifying VZ tolerance and dynamic impedance.
Does DDZ9703S-7 have AEC-Q101 qualification?
No - DDZ9703S-7 is not listed among the AEC-Q101 qualified parts in the datasheet (only DDZ9705S carries that qualification). It meets industrial-grade reliability per JESD22-A108 but is not certified for automotive under-hood applications requiring AEC-Q101 stress testing.
What is the typical Zener impedance (ZZT) at 16 V?
Per Figure 13 (Typical Zener Impedance Characteristics, DDZ9699S–DDZ9705S), ZZT is approximately 120 Ω at 1 mA and ~150 Ω at 50 μA for 16 V devices. This low impedance ensures minimal voltage deviation under varying load currents in reference applications.
Can DDZ9703S-7 replace a 1N4745A in existing designs?
No - the 1N4745A is a 16 V, 1 W through-hole Zener in DO-41 package, while DDZ9703S-7 is a 200 mW SOD-323 surface-mount device. Differences in power rating, thermal behavior, and package size require PCB redesign and thermal validation before substitution.
DDZ9703S-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 50 nA @ 12.1 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
DDZ9703S-7 FAQ
1.How can I place an order for DDZ9703S-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ9703S-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 DDZ9703S-7 reliable?
The price and inventory of DDZ9703S-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ9703S-7 is usually 5 days.
3.What payment methods are accepted for DDZ9703S-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ9703S-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ9703S-7?
DDZ9703S-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ9703S-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 DDZ9703S-7?
For technical support, including DDZ9703S-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ9703S-7 requirements.
6.How does Aetrix verify that DDZ9703S-7 is sourced from the original manufacturer or authorized distributors?
All DDZ9703S-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 DDZ9703S-7 meets industry standards.
7.What is the process for return or replacement of DDZ9703S-7?
All DDZ9703S-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ9703S-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 DDZ9703S-7 part is unused and in its original packaging.
Return procedure for DDZ9703S-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZ9703S-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…
