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Diodes Incorporated BZX84C15Q-7-F
- Part No.:
- BZX84C15Q-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C15Q-7-F.pdf
- Description:
- DIODE ZENER 15V 300MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:8,950
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Product details
Overview
BZX84C15Q-7-F from Diodes Incorporated is an AEC-Q101-qualified 15V Zener diode in SOT23 package, rated for 350mW power dissipation at 25°C ambient, with nominal Zener voltage of 15V ±4% (13.8V–15.6V) at 5mA test current, 30Ω maximum Zener impedance at 5mA, and 0.1µA maximum reverse leakage at 10.5V. It serves as a precision voltage reference or overvoltage clamp in automotive power rail monitoring circuits.
For engineers reviewing the BZX84C15Q-7-F datasheet, BZX84C15Q-7-F pinout, BZX84C15Q-7-F application, or BZX84C15Q-7-F equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (357°C/W), AEC-Q101 qualification status, SOT23 footprint compatibility, and low reverse leakage at rated VR.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load and temperature conditions. Its planar die construction ensures consistent Zener characteristics and high reliability in automotive environments.
The device exhibits a positive temperature coefficient of +9.2 mV/°C near 15V, enabling predictable voltage drift compensation in temperature-sensitive references. Its 350mW power rating is valid only when terminals are held at ambient temperature, per Note 7 in DS18001 Rev. 33-2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15V nominal, 13.8V–15.6V min/max at 5mA - defines clamping threshold for 12V automotive systems |
| Power Dissipation (PD) | 350mW at TA = 25°C with terminals at ambient - sets max continuous power before thermal derating |
| Zener Impedance (ZZT) | 30Ω max at 5mA - determines output voltage regulation stiffness under load variation |
| Reverse Leakage (IR) | 0.1µA max at VR = 10.5V - ensures minimal quiescent current in standby voltage monitor circuits |
| Thermal Resistance (RθJA) | 357°C/W - quantifies junction-to-ambient heat transfer efficiency on unheatsinked PCB |
| Temperature Coefficient | +9.2 mV/°C - enables predictable VZ drift correction in wide-temperature-range designs |
Pinout & Package
Package: SOT23 - surface-mount, 3-terminal plastic case 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-biased terminal in normal operation | Connected to lower-potential node; reverse-biased during Zener regulation |
| Cathode (Pin 2) | Zener breakdown terminal | Connected to higher-potential node; voltage referenced to this pin during clamping |
| NC / Dummy (Pin 3) | Non-connected internal tie | Electrically isolated; no circuit function - mechanical support only |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Green molding compound | Halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb) - meets automotive environmental compliance |
| Planar die construction | Enables tight Zener voltage distribution and stable long-term parametric drift |
| SOT23 footprint | Standardized 2.9mm × 1.3mm outline compatible with automated pick-and-place and reflow |
Applications
| Automotive Body Control Module (BCM) | Infotainment Power Supply Monitoring |
|---|---|
Use Scenario: Monitoring 12V battery rail for undervoltage/overvoltage events in BCM microcontroller supply path. IC Role / Device Role: Precision voltage reference for ADC input or comparator threshold setting. Use Value: 15V Zener clamps transient spikes above 15.6V while maintaining ≤0.1µA leakage below 10.5V, preserving system sleep current. |
Use Scenario: Providing stable reference for DC-DC converter feedback loop in head unit power management. IC Role / Device Role: Secondary voltage reference to cross-check primary regulator output accuracy. Use Value: ±4% VZ tolerance and +9.2 mV/°C TC allow calibrated compensation over -40°C to +125°C operating range. |
| ADAS Camera Module ESD Protection | Engine Control Unit (ECU) Sensor Biasing |
Use Scenario: Low-capacitance shunt clamp on LVDS video lines to suppress ESD-induced voltage overshoot. IC Role / Device Role: Transient voltage suppressor placed between signal line and ground. Use Value: 30Ω dynamic impedance limits clamping voltage rise during fast transients, reducing risk of receiver damage. |
Use Scenario: Generating stable bias voltage for analog sensor front-end amplifiers in harsh engine bay environment. IC Role / Device Role: Local voltage reference for op-amp offset calibration and gain-setting networks. Use Value: AEC-Q101 qualification ensures functional stability under 1000+ thermal cycles and 1000hr HTRB stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5245B-TP (Micro Commercial) | 15V nominal, ±5% tolerance, 500mW rating, no AEC-Q101 qualification | Not qualified for automotive use; suitable for industrial/commercial power supplies | Select when cost sensitivity outweighs automotive reliability requirements and thermal derating margin exists |
| BZX84-C15-7-F (Diodes Inc., standard grade) | Identical electrical specs but lacks AEC-Q101 qualification and green compound certification | Approved for non-automotive applications only; same SOT23 footprint and marking code Y4 | Choose for cost-sensitive consumer or computing applications where automotive qualification is unnecessary |
Compared with MMSZ5245B-TP and BZX84-C15-7-F, BZX84C15Q-7-F uniquely delivers automotive-grade reliability, halogen-free packaging, and guaranteed thermal performance under AEC-Q101 stress profiles - essential for safety-critical vehicle subsystems.
Availability
BZX84C15Q-7-F is available at Aetrix Electronics and suitable for automotive body control modules, infotainment power monitoring, and ADAS camera ESD protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZX84C15Q-7-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets.
This part belongs to the BZX84C series of automotive-qualified Zener diodes, designed specifically for voltage regulation and transient suppression in demanding vehicular environments where AEC-Q101 compliance and environmental certifications are mandatory.
FAQ
What is the maximum power dissipation for BZX84C15Q-7-F at 85°C ambient?
At 85°C ambient, the device's power dissipation must be derated linearly from 350mW at 25°C using the 357°C/W thermal resistance. The allowable PD is 350mW − [(85−25)°C × (350mW ÷ 357°C/W)] = approximately 240mW. This value assumes terminals remain at ambient temperature per Note 7 in DS18001.
Does BZX84C15Q-7-F have a specified total capacitance?
No, the datasheet does not list total capacitance for the BZX84C15Q-7-F variant. Figure 5 shows typical capacitance vs. nominal Zener voltage, estimating ~12pF for 15V devices at VR = 1V, but this is not a guaranteed parameter and varies with bias voltage and process lot.
How is the "Q" suffix in BZX84C15Q-7-F interpreted?
The "Q" denotes AEC-Q101 qualification and green (halogen/antimony-free) packaging. It distinguishes this automotive-grade version from the standard BZX84C15-7-F, which shares identical electrical specs but lacks automotive qualification and environmental certifications.
Can BZX84C15Q-7-F replace BZX84C15-7-F in existing designs?
Yes, it is a direct drop-in replacement electrically and mechanically - same SOT23 package, identical marking code (Y4), and matching Zener voltage, impedance, and leakage specs. The "Q" version adds automotive qualification and green materials without altering form, fit, or function.
BZX84C15Q-7-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):
- 15 V
- Tolerance:
- ±6%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 10.5 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
BZX84C15Q-7-F FAQ
1.How can I place an order for BZX84C15Q-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C15Q-7-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 BZX84C15Q-7-F reliable?
The price and inventory of BZX84C15Q-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C15Q-7-F is usually 5 days.
3.What payment methods are accepted for BZX84C15Q-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C15Q-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C15Q-7-F?
BZX84C15Q-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C15Q-7-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 BZX84C15Q-7-F?
For technical support, including BZX84C15Q-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C15Q-7-F requirements.
6.How does Aetrix verify that BZX84C15Q-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84C15Q-7-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 BZX84C15Q-7-F meets industry standards.
7.What is the process for return or replacement of BZX84C15Q-7-F?
All BZX84C15Q-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C15Q-7-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 BZX84C15Q-7-F part is unused and in its original packaging.
Return procedure for BZX84C15Q-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C15Q-7-F Tags
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