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Diodes Incorporated BZX84C13-7
- Part No.:
- BZX84C13-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C13-7.pdf
- Description:
- DIODE ZENER 13V 300MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,305
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Product details
Overview
BZX84C13-7 from Diodes Incorporated is a 13V, 350mW surface-mount Zener diode in SOT23 package, designed for precision voltage regulation and overvoltage protection in low-power analog and digital circuits. It delivers a nominal Zener voltage of 13V at 5mA test current, with ±0.7V tolerance (12.4–14.1V), 30Ω dynamic impedance at 5mA, and <0.1µA reverse leakage at 11V, enabling stable reference generation in power supply feedback loops and I/O clamp applications.
For engineers reviewing the BZX84C13-7 datasheet, BZX84C13-7 pinout, BZX84C13-7 application, or BZX84C13-7 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (357°C/W), low leakage at rated VR, SOT23 footprint compatibility, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its terminals under varying load and temperature conditions. Its planar die construction ensures consistent Zener characteristics, while the 350mW power rating supports continuous regulation in space-constrained PCB layouts without forced cooling.
The device exhibits a positive temperature coefficient of +7.0mV/°C near 13V, enabling predictable drift compensation in multi-diode references. Its 30Ω Zener impedance at 5mA and 170Ω at 1mA ensure minimal output voltage variation under dynamic current loads typical in LDO feedback networks and sensor biasing circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13V nominal at 5mA; range 12.4–14.1V ensures ±5.4% tolerance for reliable voltage clamping |
| Power Dissipation | 350mW at ambient temperature - defines maximum continuous energy handling in SOT23 package |
| Zener Impedance (ZZT) | 30Ω at 5mA - determines output voltage stability under load transients in regulation circuits |
| Reverse Leakage (IR) | <0.1µA at 11V - guarantees minimal quiescent current in high-impedance reference nodes |
| Thermal Resistance (RθJA) | 357°C/W - sets junction-to-ambient temperature rise per watt, critical for derating above 25°C |
| Temperature Coefficient | +7.0mV/°C - enables predictable VZ drift compensation in temperature-sensitive designs |
| Package | SOT23 - standard 3-pin surface-mount outline compatible with automated pick-and-place and reflow |
Pinout & Package
SOT23 package: 3-terminal plastic molded case with matte tin-plated alloy 42 leadframe; polarity marked by cathode band on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal | Connected to lower potential node during Zener operation; forms return path for regulation current |
| Cathode (Pin 2) | Zener breakdown terminal | Connected to regulated voltage node; carries reverse current during clamping/regulation |
| No-connect / Heat Sink (Pin 3) | Non-functional pad | Internally unconnected; may be used as thermal relief or ground tie but electrically isolated |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures tight Zener voltage distribution and long-term parametric stability across production lots |
| AEC-Q101 qualification | Validates reliability for automotive electronics including engine control modules and body controllers |
| Halogen- and antimony-free "Green" molding compound | Meets RoHS 3 (2015/863/EU) with <900ppm Br, <900ppm Cl, <1000ppm Sb - supports eco-compliant manufacturing |
| Moisture sensitivity Level 1 | Eliminates bake requirements before reflow, reducing assembly cost and process complexity |
| Matte tin finish, solderable per MIL-STD-202 | Guarantees robust wetting and intermetallic formation during standard SnPb or lead-free reflow profiles |
Applications
| Power Supply Feedback Reference | Microcontroller I/O Clamp Protection |
|---|---|
Use Scenario: Regulating output voltage in adjustable DC-DC converter feedback loop using TL431 or discrete op-amp comparator. IC Role / Device Role / Timing Role: Provides precise 13V reference point for error amplifier input, stabilizing output against line/load variations. Use Value: 30Ω Zener impedance minimizes voltage shift under 1–10mA feedback current changes, improving regulation accuracy to ±1.2%. | Use Scenario: Protecting 3.3V or 5V GPIO pins from ESD or transient overvoltage events exceeding rail limits. IC Role / Device Role / Timing Role: Acts as bidirectional shunt clamp-forward-biased to VF (~0.9V) for negative transients, reverse-biased to 13V for positive excursions. Use Value: <0.1µA leakage at 11V prevents signal integrity degradation on high-impedance inputs while clamping >12V spikes. |
| Automotive Sensor Biasing | Industrial Analog Signal Conditioning |
Use Scenario: Supplying stable bias voltage to pressure or temperature sensors in engine bay environments (−40°C to +125°C). IC Role / Device Role / Timing Role: Delivers temperature-compensated reference to sensor Wheatstone bridge excitation circuitry. Use Value: +7.0mV/°C TC allows predictable offset correction in calibration algorithms, reducing need for external compensation components. | Use Scenario: Setting threshold voltage for comparator-based level detection in PLC analog input modules. IC Role / Device Role / Timing Role: Defines accurate trip point for 0–10V or 4–20mA signal monitoring circuits. Use Value: 12.4–14.1V tolerance band ensures repeatable switching behavior across temperature and unit-to-unit variation in factory calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ4688-7-F | 13V nominal, 500mW rating, 30Ω ZZT, same SOT23 package | Higher power dissipation supports higher current regulation but requires larger thermal pad layout | Select when >350mW continuous power or improved thermal margin is required |
| BZX84-C13,115 | 13V nominal, 350mW, 30Ω ZZT, identical electrical specs but Nexperia packaging (SOT23, 10k/reel) | No functional difference; differs only in tape-and-reel quantity and manufacturer traceability | Select for dual-sourcing flexibility without design change or qualification effort |
Compared with MMSZ4688-7-F and BZX84-C13,115, the BZX84C13-7 offers AEC-Q101 qualification and halogen-free Green compound as differentiating features-critical for automotive Tier-1 suppliers and sustainability-driven industrial OEMs.
Availability
BZX84C13-7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, and consumer power adapter feedback circuits requiring stable component supply and full RoHS 3 compliance.
Supply support for BZX84C13-7 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 semiconductor company specializing in discrete, analog, and mixed-signal devices, with emphasis on high-reliability, energy-efficient solutions for automotive, industrial, and computing markets.
The BZX84 series belongs to Diodes' precision Zener diode product line, engineered for stable voltage reference and transient suppression in compact, high-volume surface-mount applications where AEC-Q101 reliability and environmental compliance are mandatory.
FAQ
What is the maximum reverse voltage (VR) this Zener diode can withstand before breakdown?
The BZX84C13-7 has a specified reverse voltage (VR) of 11.0V at which leakage current is guaranteed ≤0.1µA. Breakdown occurs at the nominal Zener voltage of 13V (min 12.4V) under 5mA test current. Operation above 11V but below 12.4V results in exponentially increasing leakage, not controlled regulation.
Is this part suitable for use in automotive applications?
Yes - the BZX84C13-7 is qualified to AEC-Q101 standards and manufactured with halogen- and antimony-free Green molding compound. Its operating temperature range of −65°C to +150°C, moisture sensitivity Level 1, and validated reliability data support deployment in engine control units, infotainment systems, and ADAS sensor modules.
How does the temperature coefficient affect voltage regulation accuracy over temperature?
With a +7.0mV/°C temperature coefficient, the Zener voltage increases by ~0.84V over a 120°C range (−40°C to +80°C). For applications requiring tighter regulation, this drift must be compensated via circuit design (e.g., complementary diode strings) or selected alongside temperature-stable IC references.
Can this diode replace a BZX84C12 or BZX84C15 in an existing design?
Substitution is possible only if the 13V nominal voltage meets system tolerance requirements. The BZX84C12 (12V) and BZX84C15 (15V) differ in Zener voltage, impedance (25Ω vs. 30Ω vs. 30Ω), and temperature coefficient (+6.0mV/°C vs. +7.0mV/°C vs. +9.2mV/°C), so direct replacement may alter regulation setpoint and thermal drift behavior.
BZX84C13-7 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:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 13 V
- Tolerance:
- ±6%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 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
BZX84C13-7 FAQ
1.How can I place an order for BZX84C13-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C13-7 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 BZX84C13-7 reliable?
The price and inventory of BZX84C13-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C13-7 is usually 5 days.
3.What payment methods are accepted for BZX84C13-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C13-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C13-7?
BZX84C13-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C13-7 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 BZX84C13-7?
For technical support, including BZX84C13-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C13-7 requirements.
6.How does Aetrix verify that BZX84C13-7 is sourced from the original manufacturer or authorized distributors?
All BZX84C13-7 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 BZX84C13-7 meets industry standards.
7.What is the process for return or replacement of BZX84C13-7?
All BZX84C13-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C13-7, 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 BZX84C13-7 part is unused and in its original packaging.
Return procedure for BZX84C13-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C13-7 Tags
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