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Diodes Incorporated BZX84C10W-7-F
- Part No.:
- BZX84C10W-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84C10W-7-F.pdf
- Description:
- DIODE ZENER 10V 200MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:2,235
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Product details
Overview
BZX84C10W-7-F from Diodes Incorporated is a 10 V, 200 mW surface-mount Zener diode in SOT-323 package, with nominal zener voltage 10 V (min 9.4 V, max 10.6 V at IZT = 5 mA), zener impedance 20 Ω at 5 mA, and reverse current ≤0.2 µA at 7.0 V. It provides precision voltage regulation in low-power biasing and reference circuits.
For engineers reviewing the BZX84C10W-7-F datasheet, BZX84C10W-7-F pinout, BZX84C10W-7-F application, or BZX84C10W-7-F equivalent, key selection criteria include zener voltage tolerance (±6%), thermal resistance (625 K/W), RoHS-compliant lead-free plating, ultra-small SOT-323 footprint, and temperature coefficient (+4.5 to +8.0 mV/°C).
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 leakage, with specified test conditions at TA = 25°C and pulse testing to minimize self-heating.
The device exhibits a positive temperature coefficient between +4.5 and +8.0 mV/°C at IZT = 5 mA, indicating increasing zener voltage with rising junction temperature. Maximum power dissipation is derated linearly above 25°C per the published curve, reaching zero at ~150°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10 V nominal, 9.4–10.6 V range at 5 mA - defines stable regulation point for reference/bias circuits |
| Power Dissipation (PD) | 200 mW at TA = 25°C - limits continuous current to ~20 mA at 10 V without heatsinking |
| Zener Impedance (ZZT) | 20 Ω at IZT = 5 mA - determines output voltage variation under load changes |
| Reverse Current (IR) | ≤0.2 µA at VR = 7.0 V - ensures minimal leakage in high-impedance sensing nodes |
| Temp Coefficient (αVZ) | +4.5 to +8.0 mV/°C at 5 mA - quantifies drift of regulation voltage over operating temperature |
| Thermal Resistance (RθJA) | 625 K/W on FR4 board - dictates junction-to-ambient temperature rise per watt dissipated |
| Package | SOT-323 - 2.2 mm × 1.35 mm × 0.95 mm footprint, compatible with standard pick-and-place and reflow |
Pinout & Package
SOT-323 package: three-terminal surface-mount case with anode, cathode, and no third functional terminal; polarity indicated by cathode band on top view; terminals are solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference | Connected to lower-potential node in reverse-biased regulation configuration |
| Cathode | Zener breakdown terminal / voltage reference output | Provides regulated voltage referenced to anode; marked with band on package top |
| Not Applicable | No third active terminal | SOT-323 is a two-terminal device; third pad is mechanical support only |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures tight VZ tolerance and repeatable breakdown behavior across production lots |
| Lead-free / RoHS-compliant plating | Matte tin finish over Alloy 42 leadframe enables compliant assembly without post-process cleaning |
| "Green" molding compound | Halogen-free, UL 94V-0 rated plastic supports environmental compliance and flame safety |
| Moisture sensitivity Level 1 | Eliminates bake requirement prior to reflow, reducing manufacturing overhead and risk of damage |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 10 V reference for ADC voltage dividers or op-amp feedback networks in battery-powered sensors. IC Role / Device Role / Timing Role: Voltage reference element establishing precise analog input scaling or DAC output calibration point. Use Value: Delivers ±6% voltage accuracy and <20 Ω dynamic impedance to minimize reference error under varying load currents. | Use Scenario: Protecting microcontroller I/O pins from transient overvoltage events on 3.3 V or 5 V signal lines. IC Role / Device Role / Timing Role: Shunt clamping device that conducts above 10.6 V to limit voltage excursion and divert surge energy. Use Value: Limits peak voltage to ≤10.6 V while maintaining <0.2 µA leakage below 7 V, preserving signal integrity during normal operation. |
| Current Source Bias | Temperature-Stable Bias Network |
Use Scenario: Generating constant current for LED biasing or transistor base drive in compact portable lighting modules. IC Role / Device Role / Timing Role: Zener-based current regulator where series resistor sets current via VZ/R relationship. Use Value: Enables predictable 10 V drop across series resistor, supporting ±6% current accuracy with minimal component count. | Use Scenario: Compensating for temperature drift in precision amplifier bias networks requiring matched TC. IC Role / Device Role / Timing Role: Reference element paired with NTC thermistor or complementary transistor to offset thermal drift. Use Value: Positive TC (+4.5 to +8.0 mV/°C) allows intentional cancellation of negative TC components in analog front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5240BS-7-F | 10 V nominal, 225 mW PD, SOT-323, but higher ZZT = 30 Ω at 20 mA | Higher test current shifts regulation point; less suitable for low-current references | Prefer when higher power margin is needed and tighter ZZT is not critical |
| BZX84-C10LT1G | 10 V nominal, 350 mW PD, SOT-23, with ZZT = 25 Ω at 5 mA and wider VZ tolerance (±5%) | Larger SOT-23 footprint; higher power rating supports higher current clamping | Choose when board space allows SOT-23 and >200 mW dissipation is required |
Compared with BZX84C10W-7-F, MMBZ5240BS-7-F offers higher power but looser dynamic impedance control, while BZX84-C10LT1G trades smaller size for greater thermal margin and slightly relaxed voltage tolerance-both require layout and thermal review before substitution.
Availability
BZX84C10W-7-F is available at Aetrix Electronics and suitable for voltage reference design, overvoltage protection circuits, and low-power bias networks requiring stable component supply and full RoHS compliance.
Supply support for BZX84C10W-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, with design and manufacturing operations across Asia and the Americas.
The BZX84C series belongs to Diodes' general-purpose Zener diode product line, engineered for cost-sensitive, space-constrained applications demanding reliable voltage regulation and industry-standard packaging.
FAQ
What is the maximum reverse voltage this Zener can withstand before breakdown?
The BZX84C10W-7-F has a nominal zener voltage of 10 V with a guaranteed range of 9.4 V to 10.6 V at 5 mA test current. Breakdown begins within this range; it is not rated for sustained reverse voltage above 10.6 V. Operation above this level risks exceeding power limits or degrading long-term stability.
Is this part suitable for use in automotive applications?
This device is qualified to operate from −65°C to +125°C and meets RoHS and lead-free requirements, but it is not AEC-Q200 qualified. For automotive applications requiring qualification, consult Diodes Incorporated's AEC-Q200-certified Zener portfolio or perform full reliability validation per your system requirements.
How does the temperature coefficient affect circuit performance?
With a temperature coefficient of +4.5 to +8.0 mV/°C, the zener voltage increases by up to 0.8 V over a 100°C rise. In precision references, this drift must be compensated-e.g., by pairing with a negative-TC component-or accounted for in total error budget.
Can this Zener be used in AC signal clipping applications?
Yes-it can clip AC signals when back-to-back configured with another diode, but its 200 mW rating limits usable peak current to ~20 mA. For higher-power clipping, consider higher-PD Zeners or transient voltage suppressors designed for repetitive surge handling.
BZX84C10W-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 10 V
- Tolerance:
- ±6%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 200 nA @ 7 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
BZX84C10W-7-F FAQ
1.How can I place an order for BZX84C10W-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C10W-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 BZX84C10W-7-F reliable?
The price and inventory of BZX84C10W-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 BZX84C10W-7-F is usually 5 days.
3.What payment methods are accepted for BZX84C10W-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C10W-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C10W-7-F?
BZX84C10W-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C10W-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 BZX84C10W-7-F?
For technical support, including BZX84C10W-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C10W-7-F requirements.
6.How does Aetrix verify that BZX84C10W-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84C10W-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 BZX84C10W-7-F meets industry standards.
7.What is the process for return or replacement of BZX84C10W-7-F?
All BZX84C10W-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C10W-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 BZX84C10W-7-F part is unused and in its original packaging.
Return procedure for BZX84C10W-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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