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Diodes Incorporated DDZX14-13
- Part No.:
- DDZX14-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DDZX14-13.pdf
- Description:
- DIODE ZENER 14V 300MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:9,764
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Product details
Overview
DDZX14-13 from Diodes Incorporated is a surface-mount precision Zener diode in SOT23 package, rated for 14.0 V nominal zener voltage (13.65–14.35 V range), 10 mA test current, 16 Ω zener impedance at 10 mA, and 300 mW power dissipation on FR-4 PCB. It delivers tight voltage tolerance, low leakage (≤0.05 μA at 11.0 V), and AEC-Q101 qualification - used for voltage reference and overvoltage protection in automotive sensor signal conditioning circuits.
For engineers reviewing the DDZX14-13 datasheet, DDZX14-13 pinout, DDZX14-13 application, or DDZX14-13 equivalent, this page provides verified electrical parameters, SOT23 terminal mapping, thermal derating behavior, temperature coefficient data, and direct alternatives with documented voltage/impedance trade-offs - all validated against Diodes Incorporated DS30408 Rev. 13-2.
Technical Context
This Zener operates in reverse breakdown mode with sharp knee characteristics, enabling stable reference generation under low-current conditions (IZK = 0.5 mA). Its 16 Ω dynamic impedance at IZT = 10 mA ensures minimal output voltage variation across load changes in feedback networks.
The device exhibits a positive temperature coefficient of +0.07 %/°C near 14 V (per Fig. 18), making it suitable for temperature-compensated references when paired with negative-TC components. It is fully RoHS-compliant, halogen-free, and qualified to AEC-Q101 for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13.65–14.35 V @ IZT = 10 mA - defines stable regulation window for 14 V rail monitoring |
| Zener Impedance (ZZT) | 16 Ω @ IZT = 10 mA - ensures ≤160 mV output shift per 10 mA load change in reference circuits |
| Max Reverse Current (IR) | ≤0.05 μA @ VR = 11.0 V - enables ultra-low standby power in battery-backed voltage supervisors |
| Power Dissipation (PD) | 300 mW on FR-4 PCB - supports continuous operation up to 21.4 mA at 14 V without heatsinking |
| Thermal Resistance (RθJA) | 417 °C/W - requires ambient derating above 70 °C per Fig. 1 for sustained 300 mW operation |
| Temp Coefficient (TCVZ) | +0.07 %/°C @ 14 V - predictable drift of +9.8 mV/°C aids compensation design in analog front-ends |
| Leakage Current (IR) | ≤0.05 μA @ VR = 11.0 V - critical for high-impedance bias networks in precision op-amp references |
Pinout & Package
SOT23-3 package: molded green plastic case, UL 94V-0 rated, 0.008 g weight, matte tin-plated terminals solderable per MIL-STD-202 Method 208. Moisture sensitivity level 1 (J-STD-020).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Reverse-bias cathode connection point | Connected to system ground or low-impedance return path in shunt regulator topology |
| Cathode (Pin 2) | Zener breakdown terminal | Connected to input rail; clamps voltage to VZ when reverse-biased beyond breakdown threshold |
| No Connect (Pin 3) | Internal die attach flag / mechanical support | Not electrically connected; must remain floating or tied to cathode only if specified in layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Very tight VZ tolerance | ±2.5% (13.65–14.35 V) enables single-supply 14 V reference without post-calibration |
| Low ZZT at 10 mA | 16 Ω maintains regulation stability in feedback loops driving 10–100 kΩ loads |
| AEC-Q101 qualification | Validated for automotive under-hood operation (-40 to +125 °C junction) |
| Lead-free & halogen-free | Complies with EU RoHS 2011/65/EU and Diodes Inc. "Green" standard (<900 ppm Br+Cl) |
| Sharp breakdown knee | Enables clean transition into regulation at 13.65 V - reduces ambiguity in overvoltage detection thresholds |
Applications
| Automotive Cabin Temperature Sensor | Industrial PLC Analog Input Module |
|---|---|
Use Scenario: Provides stable 14 V reference for RTD-to-voltage conversion circuitry in HVAC control units. IC Role / Device Role / Timing Role: Shunt voltage reference for precision ADC biasing and excitation current source calibration. Use Value: ±2.5% VZ tolerance eliminates need for trimming resistors; 16 Ω ZZT ensures <0.2% gain error across 0–85 °C operating range. |
Use Scenario: Clamps transient overvoltage on 12 V auxiliary supply rail feeding isolated analog front-end ICs. IC Role / Device Role / Timing Role: Overvoltage protection element placed before LDO input stage in modular I/O card. Use Value: 0.05 μA IR at 11 V prevents loading of upstream 12 V rail; 300 mW PD handles 100 ms surge events per IEC 61000-4-5 Level 3. |
| Medical Infusion Pump Power Monitor | Telecom Base Station Bias Supply |
Use Scenario: Supplies reference voltage to comparator detecting battery undervoltage (12.6 V cutoff) during DC operation. IC Role / Device Role / Timing Role: Precision threshold detector element in dual-supply monitoring circuit with hysteresis. Use Value: +0.07 %/°C TCVZ allows predictable drift compensation; AEC-Q101 rating ensures reliability in Class II medical environments. |
Use Scenario: Stabilizes bias voltage for GaN FET gate drivers in 48 V intermediate bus converters. IC Role / Device Role / Timing Role: Secondary reference node for current-sense amplifier offset nulling in high-efficiency SMPS. Use Value: 13.65–14.35 V range matches optimal gate drive headroom for 12 V logic-level drivers; SOT23 footprint enables dense layout near power stage. |
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-C13-7 | 13 V nominal, ±5% tolerance, 30 Ω ZZT @ 5 mA - looser regulation, higher impedance | Acceptable for non-critical biasing where ±5% output variation is tolerable | Select when cost sensitivity outweighs regulation accuracy; not recommended for AEC-Q101 systems |
| MMBZ5242BS-7-F | 13.5 V nominal, ±5%, 20 Ω ZZT @ 20 mA - higher test current, wider VZ spread | Suitable for general-purpose clamping but lacks automotive qualification and low-leakage performance | Choose only for industrial non-automotive designs requiring higher IZT margin; verify IR <0.1 μA at VR = 11 V |
Compared with DDZX14-13, BZX84-C13-7 offers lower unit cost but sacrifices 2× tighter VZ tolerance and 2× higher ZZT, while MMBZ5242BS-7-F trades AEC-Q101 compliance and sub-0.1 μA leakage for broader availability - making DDZX14-13 the sole choice for automotive-grade 14 V reference integrity.
Availability
DDZX14-13 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC analog inputs, medical power monitors, and telecom bias supplies requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for DDZX14-13 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 and manufacturing operations across Asia and the Americas.
The DDZX series targets high-reliability voltage reference and protection applications in automotive, industrial, and medical systems - engineered specifically for tight VZ tolerance, low leakage, and AEC-Q101 compliance in SOT23 form factor.
FAQ
What is the maximum continuous reverse voltage (VR) that DDZX14-13 can withstand without breakdown?
DDZX14-13 begins controlled reverse breakdown at its nominal zener voltage of 13.65–14.35 V. Per the datasheet, it guarantees ≤0.05 μA reverse current at VR = 11.0 V - meaning it remains fully blocking below 11 V. Operation between 11.0 V and 13.65 V falls in the pre-breakdown region with rising leakage, but no destructive conduction occurs until reaching VZ.
Does DDZX14-13 require a series current-limiting resistor in shunt regulator configuration?
Yes - a series resistor is mandatory to limit reverse current and prevent thermal runaway. For example, with a 16 V input and target IZT = 10 mA, a 160 Ω resistor sets nominal current. The resistor value must be calculated using (VIN − VZ)/IZ to ensure power dissipation stays within PD = 300 mW and junction temperature remains ≤150 °C under worst-case ambient conditions.
How does the temperature coefficient of DDZX14-13 affect its use in precision reference circuits?
DDZX14-13 has a measured +0.07 %/°C temperature coefficient near 14 V (Fig. 18), translating to +9.8 mV/°C drift. In precision references, this requires either pairing with a negative-TC component (e.g., forward-biased diode) or implementing software-based compensation using onboard temperature sensors - especially critical in automotive cabin modules operating across −40 to +125 °C.
Is DDZX14-13 compatible with lead-free reflow soldering profiles?
Yes - DDZX14-13 is fully RoHS-compliant and qualified for lead-free reflow. Its matte tin annealed terminals meet MIL-STD-202 Method 208 solderability requirements, and the SOT23 package supports peak reflow temperatures up to 260 °C for ≤30 seconds, consistent with IPC/JEDEC J-STD-020 moisture sensitivity level 1 handling.
DDZX14-13 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):
- 14 V
- Tolerance:
- ±3%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 16 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 11 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
DDZX14-13 FAQ
1.How can I place an order for DDZX14-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZX14-13 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 DDZX14-13 reliable?
The price and inventory of DDZX14-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZX14-13 is usually 5 days.
3.What payment methods are accepted for DDZX14-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZX14-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZX14-13?
DDZX14-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZX14-13 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 DDZX14-13?
For technical support, including DDZX14-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZX14-13 requirements.
6.How does Aetrix verify that DDZX14-13 is sourced from the original manufacturer or authorized distributors?
All DDZX14-13 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 DDZX14-13 meets industry standards.
7.What is the process for return or replacement of DDZX14-13?
All DDZX14-13 units undergo pre-shipment inspection (PSI). If there is an issue with DDZX14-13, 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 DDZX14-13 part is unused and in its original packaging.
Return procedure for DDZX14-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZX14-13 Tags
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