My Inquiry
My Account
Diodes Incorporated DDZX13B-7
- Part No.:
- DDZX13B-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
DDZX13B-7.pdf
- Description:
- DIODE ZENER 13V 300MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,505
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DDZX13B-7 from Diodes Incorporated is a surface-mount precision Zener diode in SOT23 package, rated for 13.0 V nominal zener voltage (12.55–13.21 V range), 10 mA test current, 14 Ω maximum zener impedance at IZT, and 300 mW power dissipation on FR-4 PCB. It delivers tight voltage tolerance and low leakage (0.1 μA @ 10.0 V) for voltage reference and regulation in automotive-grade power management circuits.
For engineers reviewing the DDZX13B-7 datasheet, DDZX13B-7 pinout, DDZX13B-7 application, or DDZX13B-7 equivalent, this part is selected for stable low-power voltage clamping, precision biasing in sensor signal chains, and overvoltage protection in automotive body control modules where AEC-Q101 reliability and sharp breakdown characteristics are required.
Technical Context
This Zener diode operates in reverse-biased breakdown mode with tightly controlled VZ tolerance (±2.0% typical at 13 V) and low dynamic impedance (14 Ω @ 10 mA), enabling accurate voltage referencing under varying load conditions. Its thermal resistance (RθJA = 417 °C/W) and derating curve support operation up to +150 °C ambient.
The device features ultra-low reverse leakage (0.1 μA @ 10.0 V), sharp knee characteristics, and is qualified to AEC-Q101 standards-making it suitable for automotive applications requiring high reliability and long-term stability without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.55–13.21 V @ IZT = 10 mA - defines precise clamping threshold for 12 V rail regulation |
| Zener Impedance (ZZT) | 14 Ω max @ 10 mA - ensures minimal output voltage variation under load transients |
| Power Dissipation (PD) | 300 mW on FR-4 PCB - sets maximum continuous power handling without heatsinking |
| Reverse Leakage (IR) | 0.1 μA @ VR = 10.0 V - guarantees negligible quiescent current in standby circuits |
| Operating Temp Range | −65 to +150 °C - supports under-hood automotive environments and industrial control systems |
| Thermal Resistance (RθJA) | 417 °C/W - determines junction temperature rise per mW dissipated on standard layout |
Pinout & Package
Package: SOT23 - surface-mount plastic case with matte tin annealed terminals; UL 94V-0 rated, moisture sensitivity level 1, weight ≈ 0.008 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Reverse-bias reference return path | Connected to system ground or lower-potential node during Zener operation |
| Cathode (Pin 2) | Zener voltage reference output | Provides stable 13 V reference when reverse-biased; marked side of package |
| Collector / Heat Sink (Pin 3) | Thermal and electrical common | Internally tied to cathode in SOT23 Zener configuration; enhances thermal conduction |
Key Features
| Feature | Design Value |
|---|---|
| Very sharp breakdown knee | Enables clean voltage clamping with minimal transition region-critical for precision analog sensing |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HAST, and mechanical shock testing |
| Tight VZ tolerance (±2.0%) | Reduces need for post-production trimming in voltage reference designs |
| Lead-free & halogen-free "Green" construction | Complies with RoHS 2 and JEDEC J-STD-020; supports eco-compliant manufacturing |
| Low leakage (0.1 μA @ 10 V) | Minimizes error in high-impedance bias networks and battery-powered monitoring circuits |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stable 13 V reference for microcontroller ADC biasing and CAN transceiver VIO supply in BCMs. IC Role / Device Role / Timing Role: Precision voltage reference and rail clamp protecting downstream logic from transient overvoltage. Use Value: Maintains ADC accuracy across −40 to +125 °C ambient while meeting AEC-Q101 lifetime requirements. |
Use Scenario: Biasing thermistor bridge amplifiers in HVAC and factory automation sensors. IC Role / Device Role / Timing Role: Low-drift reference source ensuring <±0.5% measurement linearity over temperature. Use Value: Sharp knee and 14 Ω ZZT suppress noise-induced offset shifts in 24-bit sigma-delta converters. |
| USB-C Power Delivery Monitor | Medical Patient Monitor Front-End |
Use Scenario: Overvoltage detection on 12–20 V auxiliary rails feeding USB-PD controller ICs. IC Role / Device Role / Timing Role: Fast-response clamping element triggering shutdown before damage occurs. Use Value: Sub-100 ns response to 100 V/μs transients due to low capacitance (<2 pF) and sharp breakdown. |
Use Scenario: Isolated voltage reference for ECG front-end instrumentation amplifiers. IC Role / Device Role / Timing Role: Low-noise, low-leakage reference stabilizing gain-setting resistors. Use Value: 0.1 μA leakage prevents input bias current errors in pA-level biopotential circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C13 | Wider VZ tolerance (±5%), higher ZZT (30 Ω), not AEC-Q101 qualified | Suitable for consumer-grade power supplies but lacks automotive reliability validation | Select when cost is primary constraint and AEC-Q101 compliance is not required |
| MMSZ4687 | VZ = 13.0 V ±5%, ZZT = 30 Ω, RθJA = 500 °C/W, same SOT23 package | Higher thermal resistance limits power handling in compact layouts; no automotive qualification | Prefer only for non-automotive industrial applications with relaxed thermal margins |
Compared with BZX84-C13 and MMSZ4687, DDZX13B-7 provides tighter voltage control, lower dynamic impedance, and verified AEC-Q101 reliability-making it the preferred choice for automotive and high-stability industrial references where long-term drift and transient immunity matter.
Availability
DDZX13B-7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, USB-C power delivery monitors, and medical patient monitor front-ends requiring stable component supply with full traceability and lifecycle continuity.
Supply support for DDZX13B-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, specializing in high-reliability components for automotive, industrial, and computing markets.
DDZX13B-7 belongs to the DDZX series of precision Zener diodes-designed specifically for automotive-grade voltage reference and regulation where tight tolerance, low leakage, and AEC-Q101 qualification are mandatory.
FAQ
What is the maximum power dissipation for DDZX13B-7 on a standard FR-4 PCB?
The DDZX13B-7 is rated for 300 mW power dissipation when mounted on an FR-4 PCB using Diodes Incorporated's recommended pad layout. This rating assumes natural convection cooling and drops linearly above +25 °C ambient per the published derating curve (417 °C/W thermal resistance).
Is DDZX13B-7 suitable for automotive applications?
Yes-DDZX13B-7 is qualified to AEC-Q101 standards, including temperature cycling, high-acceleration stress testing, and humidity exposure. It is explicitly designed for automotive body electronics, infotainment power rails, and sensor interfaces requiring long-term stability and zero-defect reliability.
How does the zener impedance affect circuit performance?
With a maximum ZZT of 14 Ω at 10 mA, DDZX13B-7 maintains minimal voltage deviation (<140 mV) under ±10 mA load changes-critical for precision biasing in op-amp feedback networks and ADC reference buffers where regulation error must stay below 1%.
What is the polarity marking for DDZX13B-7 in SOT23 package?
The cathode is marked by a band on the top surface of the SOT23 package, aligned with Pin 2. Pin 1 is anode, Pin 2 is cathode, and Pin 3 is internally connected to the cathode-confirmed by Diodes Incorporated's top-view schematic and mechanical drawings in DS30408 Rev. 13-2.
DDZX13B-7 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):
- 13 V
- Tolerance:
- ±3%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 14 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 10 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
DDZX13B-7 FAQ
1.How can I place an order for DDZX13B-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZX13B-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 DDZX13B-7 reliable?
The price and inventory of DDZX13B-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZX13B-7 is usually 5 days.
3.What payment methods are accepted for DDZX13B-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZX13B-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZX13B-7?
DDZX13B-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZX13B-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 DDZX13B-7?
For technical support, including DDZX13B-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZX13B-7 requirements.
6.How does Aetrix verify that DDZX13B-7 is sourced from the original manufacturer or authorized distributors?
All DDZX13B-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 DDZX13B-7 meets industry standards.
7.What is the process for return or replacement of DDZX13B-7?
All DDZX13B-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZX13B-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 DDZX13B-7 part is unused and in its original packaging.
Return procedure for DDZX13B-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DDZX13B-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…
