Diodes Incorporated BZX84C13Q-13-F
- Part No.:
- BZX84C13Q-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C13Q-13-F.pdf
- Description:
- DIODE ZENER 13V 300MW SOT23
- Quantity:
- Payment:

- Shipping:

Inventory:2,450
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Product details
Overview
BZX84C13Q-13-F from Diodes Incorporated is a 13V, 350mW surface-mount Zener diode in SOT23 package, rated for 5mA test current with 12.4–14.1V zener voltage range, 30Ω maximum zener impedance at IZT, and 0.1µA maximum reverse leakage at 8V. It serves as a precision voltage reference or overvoltage clamp in automotive power rail monitoring circuits.
For engineers reviewing the BZX84C13Q-13-F datasheet, BZX84C13Q-13-F pinout, BZX84C13Q-13-F application, or BZX84C13Q-13-F equivalent, key selection criteria include zener voltage tolerance (±4.6%), thermal resistance (357°C/W), AEC-Q101 qualification, and SOT23 terminal configuration for high-density PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled voltage regulation across 5mA nominal test current and maintains stable performance from –65°C to +150°C. Its planar die construction ensures consistent breakdown characteristics and low temperature coefficient (±7.0mV/°C).
The device delivers 350mW power dissipation under ambient-temperature terminal conditions and exhibits 30Ω dynamic impedance at 5mA, enabling accurate voltage clamping in low-power analog sensing and microcontroller reset circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13V nominal, 12.4–14.1V range at 5mA - defines regulated output voltage window for reference or clamp function |
| Power Dissipation (PD) | 350mW - maximum continuous power handling under ambient-temperature terminal condition |
| Zener Impedance (ZZT) | 30Ω max at 5mA - determines voltage regulation stability under varying load current |
| Reverse Leakage (IR) | 0.1µA max at 8V - ensures minimal standby current in voltage-sensing nodes |
| Thermal Resistance (RθJA) | 357°C/W - quantifies junction-to-ambient heat transfer efficiency on standard FR-4 board |
| Temperature Coefficient | ±7.0mV/°C - specifies voltage drift per degree Celsius near nominal operating point |
Pinout & Package
Package: SOT23 - 3-terminal surface-mount plastic package with matte tin-plated alloy 42 leadframe, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal | Connected to lower-potential node during normal operation; enables reverse-biasing of junction for Zener action |
| Cathode (Pin 2) | Zener breakdown terminal | Connected to higher-potential node; carries regulated voltage output when reverse biased above VZ |
| Collector / Substrate (Pin 3) | Internal substrate connection | Internally tied to cathode in standard Zener configuration; not electrically isolated |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HAST, and mechanical shock testing |
| Green molding compound | Halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb), compliant with RoHS 3 (2015/863/EU) |
| Planar die construction | Enables tight VZ tolerance control and repeatable breakdown characteristics across production lots |
| SOT23 footprint compatibility | Standardized 2.4mm × 1.3mm body with 0.95mm pin pitch supports automated pick-and-place and reflow assembly |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Voltage reference for LIN bus transceiver biasing and microcontroller ADC calibration in BCM subassemblies. IC Role / Device Role / Timing Role: Provides stable 13V reference for analog front-end circuitry and reset threshold generation. Use Value: Maintains ±4.6% voltage accuracy across –40°C to +125°C, ensuring consistent sensor data acquisition and fault detection. |
Use Scenario: Overvoltage protection for 12V supply rails feeding 4–20mA current-loop transmitter ICs. IC Role / Device Role / Timing Role: Clamps transient spikes above 14.1V to prevent damage to precision op-amps and DACs. Use Value: Limits energy dissipation to ≤350mW during 100ns transients, avoiding thermal runaway in compact industrial enclosures. |
| Consumer Power Adapter Feedback Loop | Medical Diagnostic Equipment Reference |
Use Scenario: Secondary-side voltage sensing in isolated flyback converters for USB-C PD adapters. IC Role / Device Role / Timing Role: Sets feedback threshold for optocoupler-driven regulation loop controlling primary-side PWM controller. Use Value: Delivers 30Ω dynamic impedance at 5mA, minimizing regulation error under variable load conditions up to 3A output. |
Use Scenario: Precision voltage reference for analog-to-digital conversion of ECG signal amplifiers. IC Role / Device Role / Timing Role: Supplies stable bias to instrumentation amplifier gain-setting network. Use Value: Achieves <0.1µA leakage at 8V, preventing DC offset drift that would compromise µV-level biopotential measurement accuracy. |
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-TP (Micro Commercial) | 13V nominal, ±5% tolerance, 500mW PD, SOD-123 package, no AEC-Q101 qualification | Larger footprint (SOD-123), higher power rating but lacks automotive reliability validation | Select when cost sensitivity outweighs AEC-Q101 requirement and board space permits larger package |
| BZX84-C13-7-F (Diodes Inc.) | Identical electrical specs, same SOT23 package, but supplied in 3,000-piece tape-and-reel vs. 10,000-piece for -13-F variant | No functional difference; only packaging quantity and reel size differ | Select when smaller batch procurement or prototyping volume aligns with 3k reel capacity |
Compared with MMSZ4688-TP and BZX84-C13-7-F, the BZX84C13Q-13-F uniquely combines AEC-Q101 qualification, 10k-reel packaging, and green compound compliance-making it optimal for high-volume automotive production where traceability, reliability, and environmental compliance are mandatory.
Availability
BZX84C13Q-13-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, consumer power adapter feedback loops, and medical diagnostic equipment requiring stable component supply with full traceability and lifecycle management.
Supply support for BZX84C13Q-13-F 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 manufacturing and design centers across Asia, Europe, and the US.
The BZX84 series belongs to Diodes' automotive-qualified Zener diode product line, engineered specifically for voltage regulation and transient suppression in harsh-environment electronic control units.
FAQ
What is the maximum reverse voltage this Zener can withstand before breakdown?
The BZX84C13Q-13-F has a nominal zener voltage of 13V with a guaranteed range of 12.4V to 14.1V at 5mA test current. Its breakdown occurs within this range under reverse bias; it is not rated for sustained operation above 14.1V without exceeding power limits or risking parametric shift.
Is this part suitable for use in a 12V automotive system with load dump transients?
Yes - its 13V zener voltage and 350mW rating allow it to clamp typical 12V system load dump transients (up to ~35V for 100ms) when used with appropriate series current-limiting resistance. The AEC-Q101 qualification confirms robustness against automotive stress profiles including temperature cycling and vibration.
How does the Q suffix in BZX84C13Q-13-F affect its specifications?
The "Q" denotes automotive-grade qualification per AEC-Q101 standards, including extended temperature range validation (–65°C to +150°C), enhanced reliability testing (HTSL, uHAST), and stricter process controls. Electrical parameters remain identical to non-Q variants except for tighter lot-to-lot consistency requirements.
Can this Zener be used in parallel for higher power dissipation?
No - Zener diodes exhibit negative temperature coefficients and mismatched breakdown voltages, causing current hogging and thermal instability when paralleled. For higher power, use a single higher-rated Zener or implement active regulation with a transistor-based shunt circuit.
BZX84C13Q-13-F 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:
- ±6.54%
- 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 (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BZX84C13Q-13-F FAQ
1.How can I place an order for BZX84C13Q-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C13Q-13-F 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 BZX84C13Q-13-F reliable?
The price and inventory of BZX84C13Q-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C13Q-13-F is usually 5 days.
3.What payment methods are accepted for BZX84C13Q-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C13Q-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C13Q-13-F?
BZX84C13Q-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C13Q-13-F 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 BZX84C13Q-13-F?
For technical support, including BZX84C13Q-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C13Q-13-F requirements.
6.How does Aetrix verify that BZX84C13Q-13-F is sourced from the original manufacturer or authorized distributors?
All BZX84C13Q-13-F 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 BZX84C13Q-13-F meets industry standards.
7.What is the process for return or replacement of BZX84C13Q-13-F?
All BZX84C13Q-13-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C13Q-13-F, 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 BZX84C13Q-13-F part is unused and in its original packaging.
Return procedure for BZX84C13Q-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C13Q-13-F Tags

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