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Diodes Incorporated BZX84C15T-7-F
- Part No.:
- BZX84C15T-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOT-523
- Datasheet:
-
BZX84C15T-7-F.pdf
- Description:
- DIODE ZENER 15V 150MW SOT523
- Quantity:
- Payment:
- Shipping:
Inventory:2,002
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Product details
Overview
BZX84C15T-7-F from Diodes Incorporated is a 15 V, 150 mW surface-mount Zener diode in SOT-523 package, rated for 5 mA test current with 13.8–15.6 V zener voltage range, 30 Ω max zener impedance at IZT, and ±0.1 µA reverse leakage at 10.5 V, used for precision voltage regulation and reference in low-power analog circuits.
For engineers reviewing the BZX84C15T-7-F datasheet, BZX84C15T-7-F pinout, BZX84C15T-7-F application, or BZX84C15T-7-F equivalent, key selection criteria include zener voltage tolerance, dynamic impedance at nominal test current, thermal resistance (833 °C/W), reverse leakage at rated VR, and SOT-523 footprint compatibility with high-density PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load or supply conditions. Its planar die construction ensures consistent breakdown characteristics and low temperature coefficient (9.2 to 13.0 mV/°C) over the operating range.
Designed for low-power regulation, it delivers specified zener voltage only when biased above minimum test current (IZK = 1.0 mA) and within thermal limits-derating linearly above 25°C ambient per the 833 °C/W RθJA rating on FR-4 board.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15 V nominal, 13.8–15.6 V range at IZT = 5 mA - defines regulated output voltage window under standard test condition |
| Power Dissipation (PD) | 150 mW maximum at TA = 25°C - sets absolute upper limit for continuous DC power handling on recommended pad layout |
| Zener Impedance (ZZT) | ≤30 Ω at IZT = 5 mA, f = 1 kHz - determines output voltage stability under small-signal AC load variations |
| Reverse Leakage (IR) | ≤0.1 µA at VR = 10.5 V - ensures minimal error current in high-impedance reference nodes |
| Temp. Coefficient (αVZ) | +9.2 to +13.0 mV/°C at IZT = 5 mA - quantifies voltage drift magnitude per degree ambient rise |
| Thermal Resistance (RθJA) | 833 °C/W - predicts junction-to-ambient temperature rise per milliwatt dissipated on standard FR-4 layout |
Pinout & Package
Package: SOT-523 - ultra-small plastic surface-mount case (1.60 mm × 0.80 mm × 0.50 mm), UL 94V-0 rated, moisture sensitivity level 1, lead-free matte tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / cathode reference ground node in shunt regulator | Connected to system ground or lower-potential rail; reverse-biased relative to cathode during regulation |
| Cathode | Zener breakdown terminal / regulated output node | Connected to input supply via series resistor; maintains stable ~15 V relative to anode when current ≥1 mA |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SOT-523 footprint | Enables placement in space-constrained designs such as wearables and IoT sensor nodes without sacrificing regulation accuracy |
| Planar die construction | Delivers tight VZ tolerance and repeatable ZZT across production lots for consistent reference performance |
| Lead-free/RoHS-compliant plating | Meets global environmental compliance requirements without compromising solderability or long-term intermetallic reliability |
| Low reverse leakage (≤0.1 µA) | Minimizes loading error in high-impedance bias networks and precision ADC reference dividers |
Applications
| Portable Battery Monitoring | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage in compact battery packs using resistive divider into microcontroller ADC. IC Role / Device Role / Timing Role: Provides stable 15 V reference for scaling divider ratio, enabling accurate full-scale measurement up to 4.2 V per cell. Use Value: Low leakage preserves divider accuracy; SOT-523 fits tight spacing between cells and PCB edge. | Use Scenario: Biasing op-amp inputs in 4–20 mA transmitter front-end circuits operating at 24 V loop supply. IC Role / Device Role / Timing Role: Shunt regulator establishing precise 15 V rail for op-amp VCC, independent of loop current variation. Use Value: 30 Ω ZZT ensures <±10 mV regulation error across 1–5 mA operating range. |
| USB-Powered Audio DAC Reference | Automotive Cabin Control Panel |
Use Scenario: Generating clean analog reference for stereo DAC in USB audio dongle powered from 5 V bus. IC Role / Device Role / Timing Role: Zener-based reference source feeding RC-filtered 15 V rail to DAC's internal reference buffer. Use Value: Tight 13.8–15.6 V VZ range allows predictable headroom above 12 V rail; low capacitance avoids HF noise coupling. | Use Scenario: Voltage clamping and ESD protection for LIN bus transceiver I/O pins in dashboard control units. IC Role / Device Role / Timing Role: Standby-mode clamp limiting transient spikes to ≤15.6 V while drawing <0.1 µA at normal bus voltage. Use Value: Ultra-low leakage prevents false wake-up; SOT-523 enables placement directly at connector interface. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5245BS-7-F | Zener voltage 15 V (14.25–15.75 V), PD = 300 mW, SOT-323 package, RθJA = 430 °C/W | Higher power rating supports higher current regulation but requires larger footprint | Select when >150 mW dissipation or lower thermal resistance is required |
| BZX84-C15LT1G | Zener voltage 15 V (14.3–15.7 V), PD = 200 mW, SOT-23 package, RθJA = 350 °C/W | Larger SOT-23 footprint; higher power and better thermal performance | Choose for legacy SOT-23 board compatibility or improved thermal margin |
Compared with BZX84C15T-7-F, MMBZ5245BS-7-F offers double power rating and superior thermal resistance but occupies more PCB area, while BZX84-C15LT1G provides intermediate power and proven SOT-23 manufacturability-both require layout revision if replacing the SOT-523 variant.
Availability
BZX84C15T-7-F is available at Aetrix Electronics and suitable for portable battery monitoring, industrial sensor signal conditioning, USB-powered audio DAC reference, and automotive cabin control panel designs requiring stable component supply and RoHS-compliant sourcing.
Supply support for BZX84C15T-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, headquartered in Plano, Texas, serving industrial, computing, consumer, and communications markets with high-reliability components.
The BZX84 series belongs to Diodes' precision Zener diode product line, engineered specifically for low-power voltage reference and regulation in space-constrained, cost-sensitive applications where tight VZ tolerance and low leakage are critical.
FAQ
What is the maximum reverse voltage this Zener can withstand before breakdown?
The BZX84C15T-7-F has a nominal zener voltage of 15 V with a guaranteed range of 13.8–15.6 V at 5 mA test current. Breakdown begins near the lower limit (13.8 V) and is fully established by 15.6 V. It is not rated for sustained operation above 15.6 V in regulation mode.
Can this device be used in series or parallel configurations?
No-this Zener is designed for single-device shunt regulation. Series connection introduces mismatched temperature coefficients and unstable combined VZ; parallel use causes current hogging due to VZ tolerance spread. Use only one device per regulation node with appropriate series current-limiting resistor.
Is the SOT-523 package compatible with standard reflow profiles?
Yes-the SOT-523 package is qualified for lead-free reflow per J-STD-020D Level 1 moisture sensitivity. Standard Pb-free peak profiles (≤260°C, 30 sec max above 220°C) are supported; no pre-bake is required due to its Level 1 rating.
How does temperature affect its zener voltage stability?
Its temperature coefficient ranges from +9.2 to +13.0 mV/°C at 5 mA, meaning VZ increases ~12 mV per °C rise. Over –65°C to +150°C, total drift is approximately ±1.8 V from nominal-designers must account for this in precision references or use compensation networks.
BZX84C15T-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 15 V
- Tolerance:
- ±6.12%
- Power - Max:
- 150 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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
BZX84C15T-7-F FAQ
1.How can I place an order for BZX84C15T-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C15T-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 BZX84C15T-7-F reliable?
The price and inventory of BZX84C15T-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 BZX84C15T-7-F is usually 5 days.
3.What payment methods are accepted for BZX84C15T-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C15T-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C15T-7-F?
BZX84C15T-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C15T-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 BZX84C15T-7-F?
For technical support, including BZX84C15T-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C15T-7-F requirements.
6.How does Aetrix verify that BZX84C15T-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84C15T-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 BZX84C15T-7-F meets industry standards.
7.What is the process for return or replacement of BZX84C15T-7-F?
All BZX84C15T-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C15T-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 BZX84C15T-7-F part is unused and in its original packaging.
Return procedure for BZX84C15T-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C15T-7-F Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
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