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Diodes Incorporated DDZ13B-7
- Part No.:
- DDZ13B-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
DDZ13B-7.pdf
- Description:
- DIODE ZENER 13V 470MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:90,486
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Product details
Overview
DDZ13B-7 from Diodes Incorporated is a surface-mount precision Zener diode with nominal zener voltage 12.55–13.21 V at 10 mA test current, 14 Ω dynamic impedance at 1 kHz, and ±0.1 µA reverse leakage at 10.0 V. It operates from –65 °C to +150 °C and delivers 294 mW power dissipation on minimal PCB pad layout. It serves as a stable voltage reference in low-power analog sensor signal conditioning circuits.
For engineers reviewing the DDZ13B-7 datasheet, DDZ13B-7 pinout, DDZ13B-7 application, or DDZ13B-7 equivalent, key selection criteria include zener voltage tolerance (±2.6% at 10 mA), thermal resistance (425 °C/W on minimal pad), temperature coefficient (≈+0.07 %/°C), and SOD123 package compatibility with high-density automated assembly.
Technical Context
This device functions as a two-terminal, silicon planar Zener diode optimized for precision voltage regulation and reference applications. Its breakdown mechanism is predominantly avalanche-dominated above 7 V, resulting in positive temperature coefficient behavior confirmed in Figure 16–19 of DS30407 Rev. 21-2.
The SOD123 package enables compact placement while maintaining thermal performance under pulsed and DC bias conditions. Electrical characteristics are specified at TA = +25 °C with short-duration pulse testing to minimize self-heating effects, and derating follows the curve in Figure 1 for ambient temperatures above 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.55–13.21 V at IZT = 10 mA - defines stable regulation window for mid-range analog references |
| Zener Impedance (ZZT) | 14 Ω at f = 1 kHz - ensures low AC output impedance for noise-sensitive reference nodes |
| Reverse Leakage (IR) | 0.1 µA at VR = 10.0 V - minimizes error current in high-impedance bias networks |
| Power Dissipation (PD) | 294 mW at TA = +25 °C on minimal pad - sets maximum continuous DC bias capability without forced cooling |
| Thermal Resistance (RθJA) | 425 °C/W - requires careful thermal pad design to avoid exceeding 150 °C junction temperature |
| Temperature Coefficient | ≈+0.07 %/°C - enables predictable drift compensation in compensated reference designs |
| Package | SOD123 - industry-standard 2-pin surface-mount outline compatible with IPC-7351B footprint Y/X/X1 = 0.95/0.90/4.05 mm |
Pinout & Package
DDZ13B-7 uses the SOD123 plastic-molded package with cathode band marking. Terminals are matte tin-annealed over Alloy 42 leadframe, solderable per MIL-STD-202 Method 208. Moisture sensitivity level is J-STD-020 Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lowest potential node; establishes reference polarity |
| Cathode | Zener breakdown terminal / regulated output node | Provides stable voltage relative to anode; marked by visible band on package body |
Key Features
| Feature | Design Value |
|---|---|
| Tight VZ tolerance | ±2.6% at 10 mA - reduces calibration burden in factory-trimmed instrumentation |
| Low ZZT | 14 Ω - maintains regulation accuracy under varying load currents up to 1 mA |
| Ultra-low IR | 0.1 µA at 10 V - avoids loading errors in op-amp feedback or high-R divider networks |
| Automated assembly ready | SOD123 footprint with J-STD-020 Level 1 moisture rating - supports high-yield reflow without baking |
| Green compliance | Halogen- and antimony-free, RoHS 3 compliant (<900 ppm Br/Cl, <1000 ppm Sb) - meets automotive and industrial environmental mandates |
Applications
| Industrial Sensor Reference | Portable Instrumentation Bias |
|---|---|
|
Use Scenario: Precision RTD or thermocouple signal conditioning in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Provides stable 13 V reference for ADC driver stage and excitation current source. Use Value: Tight 2.6% VZ tolerance eliminates field recalibration; low ZZT prevents gain drift across temperature. |
Use Scenario: Battery-powered handheld multimeter requiring stable internal reference over 0–50 °C operating range. IC Role / Device Role / Timing Role: Zener-based voltage reference for dual-slope integrator and display driver supply. Use Value: 0.1 µA reverse leakage extends battery life; +0.07 %/°C TC enables simple linear compensation. |
| Automotive Cabin Control | Medical Diagnostic Front-End |
|
Use Scenario: HVAC control unit sensing cabin temperature and humidity via analog sensors. IC Role / Device Role / Timing Role: Supplies regulated bias to analog front-end amplifiers and sensor excitation circuits. Use Value: AEC-Q101 qualification (via DDZ13BQ-7 variant) ensures reliability; SOD123 withstands vibration and thermal cycling. |
Use Scenario: Portable ECG monitor analog acquisition path requiring low-noise, stable reference for 16-bit SAR ADC. IC Role / Device Role / Timing Role: Low-impedance voltage reference for PGA gain-setting network and ADC reference buffer. Use Value: 14 Ω ZZT suppresses switching noise coupling; 425 °C/W RθJA allows operation within medical thermal envelope limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C13-7-F | 13 V nominal, ±5% tolerance, 30 Ω ZZT, SOT-23 package | Higher ZZT and looser tolerance reduce reference stability in precision systems | Select when cost sensitivity outweighs regulation accuracy and board space permits SOT-23 footprint |
| MMSZ5242BT1G | 13 V nominal, ±5% tolerance, 30 Ω ZZT, SOD-123 package, 500 mW PD | Higher power rating but wider VZ spread and higher leakage (0.5 µA @ 10 V) | Prefer where thermal margin is critical and tighter VZ tolerance is not required |
Compared with DDZ13B-7, BZX84-C13-7-F trades precision for lower cost and smaller size, while MMSZ5242BT1G offers higher power handling at the expense of voltage accuracy and leakage-making DDZ13B-7 optimal for applications demanding tight regulation and low-error biasing.
Availability
DDZ13B-7 is available at Aetrix Electronics and suitable for industrial sensor reference, portable instrumentation bias, and automotive cabin control applications requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.
Supply support for DDZ13B-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 sales operations across Asia, Europe, and North America.
DDZ13B-7 belongs to the DDZ5V1B–DDZ43 family of precision Zener diodes engineered for high-accuracy voltage reference and regulation in space-constrained, thermally demanding environments.
FAQ
What is the maximum continuous Zener current for DDZ13B-7 at 75 °C ambient?
At TL = +75 °C, DDZ13B-7 supports 500 mW power dissipation. With VZ ≈ 12.88 V, the maximum continuous Zener current is approximately 38.8 mA. This assumes proper thermal relief on the PCB and accounts for derating per Figure 1 in DS30407.
Does DDZ13B-7 have automotive-grade qualification?
No-DDZ13B-7 is the commercial-grade version. The automotive-qualified variant is DDZ13BQ-7, which is AEC-Q101 qualified, PPAP capable, and manufactured in IATF16949-certified facilities. Both share identical electrical specs and SOD123 packaging.
How does the SOD123 package affect thermal performance compared to SOD-323?
SOD123 provides ~2.5× greater copper pad area than SOD-323, reducing RθJA by up to 160 °C/W. For DDZ13B-7, this yields 425 °C/W on minimal pad vs. >600 °C/W typical for SOD-323 equivalents-enabling higher sustained power in constrained layouts.
Can DDZ13B-7 replace a 13 V Zener in a 12 V rail clamp circuit?
No-it is not rated for transient voltage suppression. DDZ13B-7 is a precision reference diode, not a TVS device. Its 294 mW DC power rating and lack of surge current specification make it unsuitable for clamping ESD or load-dump transients; use a dedicated TVS like P6KE13A instead.
DDZ13B-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):
- 13 V
- Tolerance:
- ±3%
- Power - Max:
- 470 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:
- SOD-123
DDZ13B-7 FAQ
1.How can I place an order for DDZ13B-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for DDZ13B-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 DDZ13B-7 reliable?
The price and inventory of DDZ13B-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DDZ13B-7 is usually 5 days.
3.What payment methods are accepted for DDZ13B-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DDZ13B-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DDZ13B-7?
DDZ13B-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DDZ13B-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 DDZ13B-7?
For technical support, including DDZ13B-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DDZ13B-7 requirements.
6.How does Aetrix verify that DDZ13B-7 is sourced from the original manufacturer or authorized distributors?
All DDZ13B-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 DDZ13B-7 meets industry standards.
7.What is the process for return or replacement of DDZ13B-7?
All DDZ13B-7 units undergo pre-shipment inspection (PSI). If there is an issue with DDZ13B-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 DDZ13B-7 part is unused and in its original packaging.
Return procedure for DDZ13B-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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