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Diodes Incorporated DDZX15-13
- Part No.:
- DDZX15-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DDZX15-13.pdf
- Description:
- DIODE ZENER 15V 300MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:5,073
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Product details
Overview
DDZX15-13 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 typical zener impedance at 10 mA, 300 mW power dissipation on FR-4 PCB, and AEC-Q101 qualification for automotive-grade reliability. It serves as a stable voltage reference in power supply feedback loops and overvoltage protection circuits.
For engineers reviewing the DDZX15-13 datasheet, DDZX15-13 pinout, DDZX15-13 application, or DDZX15-13 equivalent, key selection criteria include tight VZ tolerance (±2.5%), low leakage (<0.05 µA at 12 V), temperature coefficient behavior (~+0.07%/°C near 15 V), and SOT23 package compatibility with automated assembly.
Technical Context
This device operates in reverse breakdown mode to maintain precise DC voltage regulation under varying load and temperature conditions. Its sharp knee characteristics and low dynamic impedance ensure minimal output variation across 1–100 mA zener current range.
The SOT23 package enables high-density PCB layouts while supporting thermal dissipation up to 300 mW at 25°C ambient. Its AEC-Q101 qualification confirms suitability for automotive power management and engine control unit (ECU) voltage monitoring applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14.80–15.57 V at IZT = 10 mA - defines regulated output voltage window under standard test condition |
| Zener Impedance (ZZT) | 18 Ω max at IZT = 10 mA - determines output voltage stability against load current changes |
| Power Dissipation (PD) | 300 mW on FR-4 PCB - sets maximum continuous power handling without derating at 25°C ambient |
| Reverse Leakage (IR) | ≤0.05 µA at VR = 12 V - ensures minimal parasitic current in standby or sensing circuits |
| Operating Temperature | −65°C to +150°C - supports deployment in under-hood automotive and industrial environments |
| Thermal Resistance (RθJA) | 417°C/W - quantifies junction-to-ambient thermal path efficiency on standard FR-4 layout |
Pinout & Package
Package: SOT23 - three-terminal surface-mount plastic package with matte tin annealed terminals, UL 94V-0 rated molding compound, and 0.008 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal / cathode reference ground | Connected to system ground or lower-potential node in shunt regulator configuration |
| Cathode (Pin 2) | Zener breakdown terminal / regulated output node | Connected to input via current-limiting resistor; provides stable reference voltage to feedback network |
| No-Connect (Pin 3) | Internal die attach flag / mechanical support | Not electrically connected; serves structural role in SOT23 leadframe assembly |
Key Features
| Feature | Design Value |
|---|---|
| Precision voltage reference | VZ tolerance ±2.5% (14.80–15.57 V) enables accurate feedback in 12 V–15 V power rails |
| Low dynamic impedance | ZZT = 18 Ω at 10 mA minimizes output voltage shift under transient load steps |
| AEC-Q101 qualified | Validated for automotive applications including ECU, body control modules, and lighting drivers |
| Halogen- and antimony-free | Meets "Green" definition: Br < 900 ppm, Cl < 900 ppm, Br+Cl < 1500 ppm, Sb < 1000 ppm |
| Automated assembly compatible | SOT23 footprint and matte tin finish ensure reliable reflow soldering in high-volume manufacturing |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Power Supply Feedback |
|---|---|
Use Scenario: Regulating 5 V or 3.3 V reference for microcontroller ADC and sensor biasing within engine control module. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable bias point for analog front-end circuitry. Use Value: Tight VZ tolerance and low temperature coefficient ensure consistent ADC accuracy across −40°C to +125°C operating range. |
Use Scenario: Setting output voltage of isolated flyback or forward converter using optocoupler feedback loop. IC Role / Device Role / Timing Role: Primary-side voltage reference enabling precise secondary-side regulation without direct sensing. Use Value: Low leakage (<0.05 µA) prevents feedback error accumulation during light-load operation. |
| Telecom Line Card Protection | Medical Instrumentation Reference |
Use Scenario: Overvoltage clamping on 12 V bias rail feeding FPGA I/O banks in telecom line cards. IC Role / Device Role / Timing Role: Transient voltage suppressor limiting surge-induced excursions above safe logic thresholds. Use Value: Sharp breakdown knee and 300 mW rating allow fast response to 10/1000 µs surges without thermal runaway. |
Use Scenario: Providing calibrated reference for precision DACs in portable patient monitors. IC Role / Device Role / Timing Role: Stable DC reference source for analog signal conditioning chain. Use Value: AEC-Q101 qualification correlates with long-term parametric stability required for medical calibration intervals. |
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 | VZ = 14.7–15.3 V (±5%), ZZT = 30 Ω @ 5 mA, no AEC-Q101 qualification | General-purpose industrial use only; not suitable for automotive safety-critical systems | Select when cost sensitivity outweighs automotive qualification and tighter VZ tolerance requirements |
| MMSZ5245B | VZ = 14.25–15.75 V (±5%), ZZT = 25 Ω @ 20 mA, RoHS-compliant but not AEC-Q101 | Limited thermal performance: PD = 350 mW on FR-4 but RθJA = 460°C/W | Prefer for higher-current reference designs where 20 mA test current better matches operating point |
Compared with BZX84-C15 and MMSZ5245B, DDZX15-13 delivers superior voltage accuracy (±2.5% vs ±5%), lower dynamic impedance (18 Ω vs ≥25 Ω), and automotive-grade reliability-making it optimal for safety-aware power management in harsh environments.
Availability
DDZX15-13 is available at Aetrix Electronics and suitable for automotive engine control units, industrial power supply feedback networks, telecom line card protection circuits, and medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DDZX15-13 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 sales operations across Asia, Europe, and North America.
The DDZX series belongs to Diodes' precision Zener diode product line, engineered specifically for high-stability voltage reference and overvoltage protection in automotive, industrial, and communications applications demanding AEC-Q101 compliance and tight parametric control.
FAQ
What is the maximum continuous zener current for DDZX15-13?
The device is rated for 10 mA test current (IZT), but its absolute maximum zener current depends on thermal limits. At 25°C ambient and proper FR-4 pad layout, continuous operation up to ~20 mA is feasible before exceeding 300 mW power dissipation-derating required above 25°C per Fig. 1's 3.6 mW/°C slope.
Does DDZX15-13 have a specified temperature coefficient?
Yes-Fig. 17 shows typical TC of VZ ≈ +0.07%/°C for 15 V-class devices. This positive coefficient means output voltage increases slightly with rising temperature, enabling partial cancellation of negative TC components elsewhere in the circuit.
Can DDZX15-13 replace DDZX15 in existing designs?
Yes-DDZX15-13 is the tape-and-reel variant (10,000 pcs/reel) of the same die and package as DDZX15. Electrical specifications, marking code (GY), and mechanical dimensions are identical; only packaging differs per Ordering Information Note 6.
Is there a halogen-free version of DDZX15-13?
Yes-the part is inherently halogen- and antimony-free per Diodes' "Green" definition (Br < 900 ppm, Cl < 900 ppm, Sb < 1000 ppm), confirmed in Notes 2 and 3 of the datasheet and verified through material declarations.
DDZX15-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 15 V
- Tolerance:
- ±3%
- Power - Max:
- 300 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
DDZX15-13 FAQ
1.How can I place an order for DDZX15-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZX15-13 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 DDZX15-13 reliable?
The price and inventory of DDZX15-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZX15-13 is usually 5 days.
3.What payment methods are accepted for DDZX15-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZX15-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZX15-13?
DDZX15-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZX15-13 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 DDZX15-13?
For technical support, including DDZX15-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZX15-13 requirements.
6.How does Aetrix verify that DDZX15-13 is sourced from the original manufacturer or authorized distributors?
All DDZX15-13 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 DDZX15-13 meets industry standards.
7.What is the process for return or replacement of DDZX15-13?
All DDZX15-13 units undergo pre-shipment inspection (PSI). If there is an issue with DDZX15-13, 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 DDZX15-13 part is unused and in its original packaging.
Return procedure for DDZX15-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZX15-13 Tags
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