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Diodes Incorporated BZX84C15W-7
- Part No.:
- BZX84C15W-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84C15W-7.pdf
- Description:
- DIODE ZENER 15V 200MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:8,243
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Product details
Overview
BZX84C15W-7 from Diodes Incorporated is a 15 V, 200 mW surface-mount Zener diode in SOT-323 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 max reverse leakage at 10.5 V, used for precision voltage regulation and reference in low-power analog circuits.
For engineers reviewing the BZX84C15W-7 datasheet, BZX84C15W-7 pinout, BZX84C15W-7 application, or BZX84C15W-7 equivalent, key selection criteria include zener voltage tolerance (±3.9%), thermal resistance (625 K/W), operating temperature range (−65 to +125 °C), and RoHS-compliant green molding compound construction.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load or supply conditions. It uses planar die construction for consistent breakdown characteristics and low leakage, with specified zener impedance measured at 1 kHz and thermal derating defined per MIL-STD-202 mounting conditions.
The device exhibits a positive temperature coefficient of +9.2 to +13.0 mV/°C at 5 mA, enabling predictable drift compensation in temperature-sensitive references. Its ultra-small SOT-323 footprint supports high-density PCB layouts while maintaining full 200 mW power dissipation capability on FR4 boards with recommended pad layout.
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) | 200 mW - maximum continuous power handling on FR4 board with specified pad layout |
| Zener Impedance (ZZT) | ≤30 Ω at 5 mA - ensures minimal voltage variation under small-signal dynamic load changes |
| Reverse Leakage (IR) | ≤0.1 µA at 10.5 V - guarantees low quiescent current in standby or high-impedance bias networks |
| Temp Coefficient (αVZ) | +9.2 to +13.0 mV/°C at 5 mA - enables predictable voltage drift for thermal compensation design |
| Thermal Resistance (RθJA) | 625 K/W - determines junction-to-ambient temperature rise per watt dissipated |
| Operating Temp Range | −65 to +125 °C - supports industrial and automotive ambient environments without derating |
Pinout & Package
Package: SOT-323 - ultra-small surface-mount plastic case (2.0 × 1.25 × 0.9 mm), UL 94V-0 rated, lead-free matte tin plating over Alloy 42 leadframe, polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower potential node when used in reverse-biased regulation |
| Cathode | Zener breakdown terminal / voltage reference output | Provides stable 15 V reference relative to anode; marked with band on package top view |
| Case | Non-electrical mechanical structure | No internal connection; serves only as thermal and mechanical interface to PCB |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures tight zener voltage distribution and repeatable breakdown characteristics across production lots |
| Green molding compound | Halogen-free, Sb2O3-free encapsulation compliant with Diodes Inc.'s environmental policy since 2006 |
| Moisture sensitivity Level 1 | Eliminates need for baking prior to reflow soldering per J-STD-020D |
| Ultra-small SOT-323 footprint | Enables placement in space-constrained designs such as portable instrumentation and wearables |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 15 V reference for ADC voltage dividers or op-amp bias networks in battery-powered sensors. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference node voltage independent of supply variation. Use Value: Maintains ≤±3.9% reference accuracy over temperature and current, reducing calibration burden in field-deployed units. | Use Scenario: Protecting microcontroller I/O pins from transient overvoltage events exceeding 15 V in industrial control interfaces. IC Role / Device Role / Timing Role: Shunt clamping element that conducts excess current above 15.6 V to limit downstream voltage excursion. Use Value: Limits peak clamped voltage to ≤15.6 V with <0.1 µA leakage below 10.5 V, minimizing standby power impact. |
| Temperature-Compensated Bias | Low-Power Voltage Monitor |
Use Scenario: Generating a temperature-stable bias point for RF amplifier stages where gain must remain constant across −40 to +85 °C. IC Role / Device Role / Timing Role: Zener reference combined with NTC thermistor to offset +9.2 to +13.0 mV/°C drift. Use Value: Enables <±2% bias voltage stability over full industrial temperature range using passive compensation. | Use Scenario: Detecting brown-out conditions in 12–18 V DC input rails for embedded controllers in smart home hubs. IC Role / Device Role / Timing Role: Threshold detector feeding comparator input; conduction begins near 13.8 V zener knee. Use Value: Provides sharp turn-on with ≤30 Ω dynamic impedance, yielding reliable trip point within ±0.3 V tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5245BS-7-F | Same 15 V nominal, but 350 mW rating, SOT-323, 30 Ω ZZT, −65 to +150 °C range | Higher power margin allows use in higher-current shunt regulators or transient suppressors | Select when >200 mW dissipation headroom or extended temperature operation is required |
| BZX84-C15LT1G | 15 V nominal, 225 mW, SOT-23, 30 Ω ZZT, −65 to +150 °C, different marking and tape/reel packaging | Larger SOT-23 footprint eases hand-soldering but increases board area vs. SOT-323 | Select when SOT-23 compatibility or higher thermal mass is preferred over miniaturization |
Compared with MMBZ5245BS-7-F and BZX84-C15LT1G, BZX84C15W-7 offers optimal balance of ultra-compact size, industrial temperature support, and precise 15 V regulation at 200 mW-ideal for space-constrained, low-quiescent systems where exact SOT-323 fit and RoHS/green compliance are mandatory.
Availability
BZX84C15W-7 is available at Aetrix Electronics and suitable for precision voltage reference, overvoltage protection, temperature-compensated biasing, and low-power voltage monitoring requiring stable component supply and full traceability.
Supply support for BZX84C15W-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, industry-standard components for power management, signal integrity, and protection.
The BZX84 series belongs to Diodes Inc.'s general-purpose Zener diode product line, designed specifically for cost-effective, space-efficient voltage regulation and clamping in consumer, industrial, and computing applications.
FAQ
What is the maximum reverse leakage current for BZX84C15W-7 at 10.5 V?
The maximum reverse leakage current is 0.1 µA at VR = 10.5 V and TA = 25 °C, as specified in the Electrical Characteristics table. This value remains valid across the full operating temperature range, ensuring minimal loading on high-impedance reference nodes in precision analog circuits.
Can BZX84C15W-7 be used in place of a 15 V Zener in a 5 mA current source design?
Yes - it is characterized at 5 mA test current (IZT) with 13.8–15.6 V zener voltage range and ≤30 Ω dynamic impedance. When biased at 5 mA, its voltage regulation error remains within ±3.9%, making it suitable for current-source-based reference designs meeting industrial accuracy requirements.
Does BZX84C15W-7 require special handling for moisture sensitivity?
No - it is rated Moisture Sensitivity Level 1 per J-STD-020D, meaning it can be stored indefinitely at ≤30 °C/60% RH and placed directly into reflow without baking. This simplifies manufacturing flow and eliminates moisture-related popcorning risk during assembly.
How does the temperature coefficient affect long-term stability in a 15 V reference circuit?
With a +9.2 to +13.0 mV/°C coefficient at 5 mA, the zener voltage increases ~12 mV per °C rise. Over a 100 °C span (−65 to +35 °C), this yields ~1.2 V drift - requiring compensation (e.g., with negative-tempco components) in applications demanding <±1% total reference stability.
BZX84C15W-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 15 V
- Tolerance:
- ±6%
- Power - Max:
- 200 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 ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BZX84C15W-7 FAQ
1.How can I place an order for BZX84C15W-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C15W-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 BZX84C15W-7 reliable?
The price and inventory of BZX84C15W-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C15W-7 is usually 5 days.
3.What payment methods are accepted for BZX84C15W-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C15W-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C15W-7?
BZX84C15W-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C15W-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 BZX84C15W-7?
For technical support, including BZX84C15W-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C15W-7 requirements.
6.How does Aetrix verify that BZX84C15W-7 is sourced from the original manufacturer or authorized distributors?
All BZX84C15W-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 BZX84C15W-7 meets industry standards.
7.What is the process for return or replacement of BZX84C15W-7?
All BZX84C15W-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C15W-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 BZX84C15W-7 part is unused and in its original packaging.
Return procedure for BZX84C15W-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C15W-7 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
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BZT52C3V6LP-7
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