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Diodes Incorporated BZX84C15Q-13-F
- Part No.:
- BZX84C15Q-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C15Q-13-F.pdf
- Description:
- DIODE ZENER 15V 300MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,698
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Product details
Overview
BZX84C15Q-13-F from Diodes Incorporated is a 15V, 350mW surface-mount Zener diode in SOT23 package, rated for 5mA test current with 13.8–15.6V zener voltage range, 30Ω max zener impedance at 5mA, and 0.1µA max 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-13-F datasheet, BZX84C15Q-13-F pinout, BZX84C15Q-13-F application, or BZX84C15Q-13-F equivalent, key selection criteria include zener voltage tolerance (±5%), thermal resistance (357°C/W), AEC-Q101 qualification, SOT23 footprint compatibility, and low leakage performance at rated VR.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage regulation across varying load currents. Its planar die construction ensures consistent breakdown characteristics and low temperature coefficient (±0.092 mV/°C typical) over –65°C to +150°C operating range.
The device delivers 350mW power dissipation under ambient-temperature terminal conditions and exhibits 30Ω dynamic impedance at 5mA test current, enabling predictable clamping behavior in transient suppression and reference circuits where tight voltage stability is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15 V nominal, 13.8–15.6 V range at 5 mA - defines regulated output voltage window under standard test conditions |
| Power Dissipation (PD) | 350 mW - maximum continuous power handling at ambient-temperature terminals, supporting robust operation in compact layouts |
| Zener Impedance (ZZT) | 30 Ω max at 5 mA - determines voltage deviation under load changes; lower value improves regulation accuracy |
| Reverse Leakage (IR) | 0.1 µA max at 10.5 V - ensures minimal standby current in voltage-sensing or high-impedance bias networks |
| Thermal Resistance (RθJA) | 357 °C/W - quantifies junction-to-ambient heat transfer efficiency on standard FR-4 PCB with recommended pad layout |
| Operating Temperature | –65°C to +150°C - enables deployment in under-hood automotive environments and industrial control systems |
Pinout & Package
Package: SOT23 - surface-mount plastic case with matte tin-plated alloy 42 leadframe, UL 94V-0 rated, moisture sensitivity level 1, weight ≈ 0.008 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction path / cathode reference ground | Connected to system ground or lower-potential node when used in shunt regulation configuration |
| Cathode (Pin 2) | Zener breakdown terminal / voltage reference output | Connected to input rail or signal node requiring clamping or stabilization at 15 V |
| NC / Dummy (Pin 3) | Non-functional mechanical support | Internally unconnected; serves structural role in SOT23 mold compound and does not participate in electrical operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics requiring high reliability |
| Green molding compound | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb), compliant with RoHS 3 and environmental directives |
| Planar die construction | Enables tight zener voltage distribution and repeatable breakdown characteristics across production lots |
| SOT23 footprint | Standardized 3-pin surface-mount package compatible with automated pick-and-place and reflow assembly processes |
Applications
| Automotive Power Rail Monitoring | Industrial Sensor Reference Supply |
|---|---|
Use Scenario: Monitoring 12V battery-derived rails in engine control modules where voltage excursions beyond 15V indicate alternator regulation faults. IC Role / Device Role / Timing Role: Shunt voltage clamp that diverts excess current when rail exceeds 15V, protecting downstream analog front-end circuitry. Use Value: Maintains safe input voltage to ADCs and op-amps with ±5% zener tolerance and sub-0.1µA leakage at 10.5V. | Use Scenario: Providing stable 15V reference for bridge sensor excitation in factory-floor pressure transducers operating at 85°C ambient. IC Role / Device Role / Timing Role: Precision voltage reference source with low tempco (±0.092 mV/°C) and full –65°C to +150°C operational range. Use Value: Enables <0.5% full-scale error drift over temperature without external trimming components. |
| USB-C Port Overvoltage Protection | Programmable Logic Controller Input Conditioning |
Use Scenario: Clamping transient surges on USB-C VBUS lines during hot-plug events in portable docking stations. IC Role / Device Role / Timing Role: Fast-response shunt protector activated within nanoseconds of overvoltage onset, dissipating up to 350mW peak energy. Use Value: Limits VBUS to ≤15.6V with 30Ω dynamic impedance, preventing damage to USB PD controller ICs. | Use Scenario: Level-shifting and noise filtering for 24V DC digital inputs in PLC backplanes exposed to EMI in motor drive cabinets. IC Role / Device Role / Timing Role: Input voltage limiter and ESD suppressor integrated into discrete input buffer stage. Use Value: Provides 15V clamping threshold with 0.1µA leakage at 10.5V, minimizing false triggering in high-noise environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5245B-TP (Micro Commercial) | 15V nominal, ±5% tolerance, 500mW rating, SOD-123 package | Higher power rating but larger footprint; lacks AEC-Q101 qualification | Select when higher pulse power handling is needed and automotive qualification is not required |
| BZX84-C15 (Nexperia) | 15V nominal, ±5% tolerance, 300mW rating, SOT23 package, no AEC-Q101 | Lower power dissipation (300mW vs. 350mW); same pinout but non-automotive grade | Choose for cost-sensitive industrial designs where AEC-Q101 compliance is unnecessary |
Compared with MMSZ5245B-TP and BZX84-C15, BZX84C15Q-13-F offers superior thermal performance (357°C/W vs. ~450°C/W), automotive qualification, and tighter process control for voltage consistency-critical in safety-critical voltage monitoring functions.
Availability
BZX84C15Q-13-F is available at Aetrix Electronics and suitable for automotive power management, industrial sensor reference supplies, USB-C overvoltage protection, and PLC input conditioning requiring stable component supply and long-term lifecycle continuity.
Supply support for BZX84C15Q-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and consumer markets.
The BZX84 series belongs to Diodes' automotive-grade Zener diode product line, engineered specifically for voltage regulation and transient suppression in harsh-environment electronic control units.
FAQ
What is the difference between BZX84C15Q-13-F and BZX84C15-13-F?
The "Q" suffix denotes AEC-Q101 qualification and automotive-grade screening, including extended temperature testing, accelerated life validation, and lot traceability per IATF 16949. The non-Q version is intended for commercial applications and lacks these automotive-specific reliability tests and documentation requirements.
Can BZX84C15Q-13-F be used in place of a 15V Zener with different power rating?
Yes, provided the application's peak power demand does not exceed 350mW under worst-case thermal conditions. Its 357°C/W RθJA requires careful PCB copper area design; substituting a 500mW Zener may improve margin in high-ambient scenarios but necessitates SOD-123 layout changes.
Is the SOT23 pinout standardized across all BZX84 variants?
Yes-BZX84C15Q-13-F uses the industry-standard SOT23 pinout: Pin 1 = Anode, Pin 2 = Cathode, Pin 3 = NC. This matches all Diodes Incorporated BZX84C-series devices and aligns with JEDEC MO-203AB, enabling direct footprint reuse across voltage grades.
Does this Zener diode require external current limiting in shunt regulator configurations?
Yes-like all Zener diodes, it must be series-current-limited to prevent thermal runaway. For 15V regulation at 5mA, a minimum 1kΩ resistor is required from a 20V source; actual value depends on input voltage range, load current, and desired regulation stability.
BZX84C15Q-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):
- 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-13-F FAQ
1.How can I place an order for BZX84C15Q-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C15Q-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 BZX84C15Q-13-F reliable?
The price and inventory of BZX84C15Q-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 BZX84C15Q-13-F is usually 5 days.
3.What payment methods are accepted for BZX84C15Q-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C15Q-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C15Q-13-F?
BZX84C15Q-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C15Q-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 BZX84C15Q-13-F?
For technical support, including BZX84C15Q-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C15Q-13-F requirements.
6.How does Aetrix verify that BZX84C15Q-13-F is sourced from the original manufacturer or authorized distributors?
All BZX84C15Q-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 BZX84C15Q-13-F meets industry standards.
7.What is the process for return or replacement of BZX84C15Q-13-F?
All BZX84C15Q-13-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C15Q-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 BZX84C15Q-13-F part is unused and in its original packaging.
Return procedure for BZX84C15Q-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C15Q-13-F Tags
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