My Inquiry
My Account
Diodes Incorporated DDZ15Q-7
- Part No.:
- DDZ15Q-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
DDZ15Q-7.pdf
- Description:
- DIODE ZENER 15V 470MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:4,525
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DDZ15Q-7 from Diodes Incorporated is a surface-mount precision Zener diode with nominal zener voltage 14.80–15.57 V at 10 mA test current, 18 Ω maximum zener impedance at 10 mA, and ±0.05 µA maximum reverse leakage at 12.0 V. It operates across –65 °C to +150 °C and delivers stable voltage reference in low-power analog monitoring circuits.
For engineers reviewing the DDZ15Q-7 datasheet, DDZ15Q-7 pinout, DDZ15Q-7 application, or DDZ15Q-7 equivalent, this device serves as a high-stability, low-noise voltage reference for power supply feedback, overvoltage protection clamping, and sensor biasing where tight VZ tolerance and low temperature coefficient are critical.
Technical Context
This Zener diode uses silicon planar epitaxial construction to achieve precise breakdown characteristics with minimal voltage drift over temperature. Its 18 Ω dynamic impedance at IZT = 10 mA ensures low output noise and fast regulation response under varying load conditions.
The device exhibits a typical temperature coefficient of +0.07 %/°C near 15 V (per Fig. 17), enabling predictable thermal behavior in unregulated DC rails and analog front-end references. Its SOD123 package supports automated placement and provides 294 mW power dissipation on minimal PCB copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14.80–15.57 V at IZT = 10 mA - defines stable reference point for feedback loops and threshold detection |
| Zener Impedance (ZZT) | 18 Ω max at IZT = 10 mA - ensures minimal output voltage variation under dynamic current changes |
| Reverse Leakage (IR) | 0.05 µA max at VR = 12.0 V - guarantees negligible error current in high-impedance reference nodes |
| Power Dissipation (PD) | 294 mW at TA = +25°C on minimal pad layout - sets practical upper limit for continuous bias current |
| Operating Temperature | –65 °C to +150 °C - enables use in automotive engine control units and industrial sensors without derating |
| Thermal Resistance (RθJA) | 425 °C/W on standard FR-4 pad - determines junction-to-ambient rise per watt, critical for thermal design margin |
Pinout & Package
Package: SOD123 - surface-mount plastic case with cathode band marking; dimensions: 2.65 mm × 1.55 mm × 1.05 mm (L × W × H); moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to system ground or low-impedance return path; establishes reference node for VZ measurement |
| Cathode | Zener breakdown terminal / regulated output node | Provides stable voltage relative to anode; used directly as reference input to op-amps or comparator thresholds |
Key Features
| Feature | Design Value |
|---|---|
| Precision Zener voltage tolerance | ±2.5% total spread (14.80–15.57 V) - reduces calibration overhead in factory-trimmed systems |
| Low dynamic impedance | 18 Ω max at 10 mA - maintains <18 mV output shift per 1 mA load change, improving ADC reference stability |
| Automated assembly compatibility | SOD123 footprint with matte tin annealed terminals - ensures reliable reflow soldering and zero lead contamination |
| AEC-Q101 qualification | Qualified for automotive applications with PPAP support - meets stress-test requirements for under-hood ECUs and ADAS modules |
Applications
| Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
|
Use Scenario: Regulating output voltage of isolated flyback or buck-boost converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Provides precise 15 V reference to TL431 shunt regulator or error amplifier input. Use Value: Tight VZ tolerance minimizes output voltage deviation across production batches without post-assembly trimming. |
Use Scenario: Clamping transient surges on 12 V automotive CAN bus lines during load dump events. IC Role / Device Role / Timing Role: Acts as bidirectional voltage limiter between signal line and chassis ground. Use Value: Low ZZT and sub-µA leakage prevent false triggering while absorbing >100 mJ pulses without degradation. |
| Sensor Bias Reference | ADC Input Protection |
|
Use Scenario: Supplying stable excitation voltage to resistive temperature detectors (RTDs) in HVAC control panels. IC Role / Device Role / Timing Role: Delivers low-noise 15 V bias to Wheatstone bridge, minimizing self-heating error. Use Value: 0.05 µA leakage avoids measurable offset in 100 kΩ+ bridge arms, preserving <0.1% measurement accuracy. |
Use Scenario: Protecting SAR ADC inputs from ESD and overvoltage in portable medical instrumentation. IC Role / Device Role / Timing Role: Shunts excess voltage to ground before it reaches sensitive input ESD structures. Use Value: Fast Zener turn-on (<1 ns) and 294 mW rating absorb IEC 61000-4-2 Level 4 strikes without latch-up or parametric shift. |
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-C15 | ±5% VZ tolerance (14.25–15.75 V), 30 Ω ZZT, no AEC-Q101 qualification | Acceptable for consumer-grade power supplies but unsuitable for automotive safety-critical functions | Select when cost is prioritized over long-term stability and qualification compliance |
| MMSZ5245B | ±5% VZ (14.25–15.75 V), 30 Ω ZZT, SOD-123 package, RoHS-compliant but not AEC-Q101 | Limited to industrial controls with ambient temperature <125 °C due to unspecified high-temp reliability data | Choose for non-automotive designs requiring second-source availability and legacy footprint compatibility |
Compared with BZX84-C15 and MMSZ5245B, DDZ15Q-7 offers tighter voltage tolerance, lower impedance, and full automotive qualification-making it the only option suitable for ASIL-B compliant voltage monitoring in engine management systems.
Availability
DDZ15Q-7 is available at Aetrix Electronics and suitable for automotive engine control units, industrial sensor transmitters, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for DDZ15Q-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 distribution operations across Asia, Europe, and North America.
The DDZ series targets high-reliability voltage reference applications in automotive and industrial markets, emphasizing tight VZ tolerance, low temperature coefficient, and AEC-Q101 qualification for mission-critical subsystems.
FAQ
What is the maximum continuous power dissipation for DDZ15Q-7 on a standard FR-4 PCB?
DDZ15Q-7 dissipates up to 294 mW at +25°C ambient when mounted on a single-sided FR-4 board with minimum recommended SOD123 pad layout (1x copper area). Derating begins linearly above +25°C at 0.706 mW/°C, reaching zero at +150°C ambient per Figure 1.
How does the cathode band marking align with the SOD123 package outline?
The cathode band is a molded stripe located at the top edge of the SOD123 body, adjacent to the smaller end of the rectangular package. In top view, it corresponds to the terminal labeled "K" in Diodes' package drawings and must be routed to the higher-potential node in Zener operation.
Is DDZ15Q-7 suitable for use in high-frequency noise suppression circuits?
No-DDZ15Q-7 is optimized for DC and low-frequency voltage regulation, not RF filtering. Its typical capacitance is ~12 pF at 1 MHz and 2 V reverse bias (inferred from Fig. 10), making it ineffective for MHz-range EMI suppression; TVS diodes or ferrite beads are preferred for that function.
Does the "Q" suffix in DDZ15Q-7 indicate automotive qualification?
Yes-the "Q" denotes AEC-Q101 qualification, PPAP capability, and manufacture in IATF 16949-certified facilities. This distinguishes it from commercial-grade DDZ15B-7, which shares identical electrical specs but lacks automotive process controls and reliability testing documentation.
DDZ15Q-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 15 V
- Tolerance:
- ±2.5%
- Power - Max:
- 470 mW
- Impedance (Max) (Zzt):
- 18 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 12 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
DDZ15Q-7 FAQ
1.How can I place an order for DDZ15Q-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ15Q-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 DDZ15Q-7 reliable?
The price and inventory of DDZ15Q-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ15Q-7 is usually 5 days.
3.What payment methods are accepted for DDZ15Q-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ15Q-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ15Q-7?
DDZ15Q-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ15Q-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 DDZ15Q-7?
For technical support, including DDZ15Q-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ15Q-7 requirements.
6.How does Aetrix verify that DDZ15Q-7 is sourced from the original manufacturer or authorized distributors?
All DDZ15Q-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 DDZ15Q-7 meets industry standards.
7.What is the process for return or replacement of DDZ15Q-7?
All DDZ15Q-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ15Q-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 DDZ15Q-7 part is unused and in its original packaging.
Return procedure for DDZ15Q-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZ15Q-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…
