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Diodes Incorporated BZX84B2V7-7-F
- Part No.:
- BZX84B2V7-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84B2V7-7-F.pdf
- Description:
- DIODE ZENER 2.7V 300MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,898
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Product details
Overview
BZX84B2V7-7-F from Diodes Incorporated is a precision 2.7 V Zener diode in SOT23 package, rated for 350 mW power dissipation, ±2% tolerance on nominal Zener voltage, and qualified to AEC-Q101 for automotive reliability. It operates across –65°C to +150°C and delivers stable voltage reference in low-power biasing and overvoltage protection circuits.
For engineers reviewing the BZX84B2V7-7-F datasheet, BZX84B2V7-7-F pinout, BZX84B2V7-7-F application, or BZX84B2V7-7-F equivalent, key selection criteria include Zener voltage accuracy (2.65–2.75 V @ 5 mA), low dynamic impedance (100 Ω @ 5 mA), temperature coefficient near zero (–3.5 to 0 mV/°C), and RoHS-compliant, halogen-free "Green" construction.
Technical Context
This device functions as a two-terminal voltage reference diode operating in reverse breakdown mode. Its Zener voltage is specified at 5.0 mA test current with tight 2% tolerance, and it exhibits low Zener impedance (100 Ω typical at 5 mA, 600 Ω at knee current) for stable regulation under varying load conditions.
The diode features a near-zero temperature coefficient (–3.5 to 0 mV/°C) at 2.7 V, minimizing drift over temperature. It is fully qualified to AEC-Q101, supports automated SMT assembly, and uses a lead-free, halogen-free molding compound compliant with RoHS 3 (2015/863/EU).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.7 V nominal, 2.65–2.75 V range @ 5 mA - ensures precise low-voltage reference for sensor biasing and regulator feedback. |
| Power Dissipation | 350 mW - supports continuous operation in compact SOT23 footprint without forced cooling. |
| Zener Impedance | 100 Ω @ 5 mA - maintains regulation stability under small-signal load variations. |
| Tolerance | ±2% - enables high-accuracy voltage clamping without post-production trimming. |
| Temp Coefficient | –3.5 to 0 mV/°C - minimizes thermal drift in ambient-temperature-sensitive applications like battery monitoring. |
| Reverse Leakage | 20 µA @ 1.0 V - ensures low standby current in always-on protection circuits. |
| Package | SOT23 - surface-mount compatible with standard pick-and-place and reflow processes. |
Pinout & Package
Package: SOT23 - three-terminal plastic surface-mount package with gull-wing leads; case material is UL 94V-0 green molding compound; weight ≈ 0.008 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Cathode-side reference node | Connected to circuit ground or lower potential; defines polarity for reverse-bias operation. |
| Cathode (Pin 2) | Zener voltage output node | Provides stable 2.7 V reference when reverse-biased; connects to regulated rail or feedback point. |
| No-Connect (Pin 3) | Internal die attach flag | Electrically isolated; serves mechanical anchoring only-must remain unconnected in PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness. |
| ±2% Zener voltage tolerance | Reduces need for external calibration in precision analog signal chains and voltage monitors. |
| Lead-free & halogen-free "Green" construction | Meets RoHS 3 (2015/863/EU) and JEDEC J-STD-020 moisture sensitivity Level 1. |
| Low 350 mW thermal resistance (357 °C/W) | Enables use in thermally constrained spaces without derating below 25°C ambient. |
Applications
| Automotive Sensor Biasing | Industrial Power Supply Feedback |
|---|---|
|
Use Scenario: Providing stable 2.7 V reference for MEMS pressure sensor excitation in engine control units. IC Role / Device Role / Timing Role: Precision voltage reference source for analog front-end conditioning circuitry. Use Value: Tight ±2% tolerance and near-zero tempco ensure <±10 mV drift over –40°C to +125°C, meeting ASIL-B functional safety requirements. |
Use Scenario: Setting output voltage in isolated flyback converter feedback loop via optocoupler divider. IC Role / Device Role / Timing Role: Low-power Zener clamp defining reference threshold for TL431-like regulation. Use Value: 100 Ω dynamic impedance maintains loop stability despite input ripple; SOT23 footprint saves board space in compact PSU designs. |
| Portable Battery Voltage Monitor | ESD-Sensitive Interface Protection |
|
Use Scenario: Monitoring Li-ion cell voltage during charging cycles using microcontroller ADC with internal reference. IC Role / Device Role / Timing Role: Secondary reference for ratiometric ADC scaling and overvoltage detection. Use Value: 20 µA leakage at 1 V ensures negligible battery drain in sleep mode; AEC-Q101 rating supports extended field life. |
Use Scenario: Clamping transient surges on I²C bus lines in industrial IoT gateways exposed to EMC stress. IC Role / Device Role / Timing Role: Low-capacitance (≈15 pF) shunt protector limiting voltage to 2.7 V before IC input damage. Use Value: Fast response to sub-100 ns transients; SOT23 placement adjacent to connector minimizes inductance in protection path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ4678T1G | 2.7 V nominal, ±5% tolerance, 500 mW rating, SOD-123 package | Higher power but looser tolerance; larger footprint limits high-density layouts | Select when higher surge energy handling is required and ±2% accuracy is not critical. |
| BZX84-C2V7 | 2.7 V nominal, ±5% tolerance, same SOT23 package, non-AEC-Q101 | Lacks automotive qualification and tighter tolerance; lower cost for consumer-grade use | Select for cost-sensitive non-automotive applications where AEC-Q101 and ±2% are unnecessary. |
Compared with MMSZ4678T1G and BZX84-C2V7, BZX84B2V7-7-F uniquely combines AEC-Q101 qualification, ±2% voltage accuracy, and SOT23 compatibility-making it optimal for space-constrained automotive and industrial voltage reference designs requiring long-term stability.
Availability
BZX84B2V7-7-F is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial power supply feedback, and portable battery voltage monitoring requiring stable component supply, full RoHS compliance, and AEC-Q101 reliability assurance.
Supply support for BZX84B2V7-7-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, energy-efficient components for automotive, industrial, and computing markets.
The BZX84B series belongs to Diodes' precision Zener diode product line, engineered specifically for stable voltage reference and overvoltage protection in AEC-Q101-compliant automotive electronics and ruggedized industrial systems.
FAQ
What is the maximum reverse current at 1.0 V for BZX84B2V7-7-F?
The maximum reverse current (IR) is 20 µA at VR = 1.0 V, measured at TA = +25°C. This low leakage ensures minimal power loss in always-on monitoring circuits and supports long battery life in portable applications.
Is BZX84B2V7-7-F suitable for automotive applications?
Yes - it is explicitly qualified to AEC-Q101 standards, including stress tests for temperature cycling, high-temperature reverse bias, and electrostatic discharge. Its green, halogen-free construction and ±2% Zener tolerance meet Tier-1 automotive supplier requirements.
How does the Zener impedance affect regulation performance?
Zener impedance of 100 Ω at 5 mA means the output voltage changes by ~0.5 V per 5 mA load shift - enabling stable regulation in low-current feedback paths. At knee current (1 mA), impedance rises to 600 Ω, so design must maintain ≥2 mA operating current for best accuracy.
What is the thermal resistance junction-to-ambient for this device?
RθJA is 357 °C/W when terminals are held at ambient temperature (Note 6), and 417 °C/W on FR-4 PCB with recommended pad layout (Note 5). Derating begins above 25°C ambient per Figure 1, reaching 0 mW at 150°C.
BZX84B2V7-7-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):
- 2.7 V
- Tolerance:
- ±2%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 20 µA @ 1 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-23-3
BZX84B2V7-7-F FAQ
1.How can I place an order for BZX84B2V7-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84B2V7-7-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 BZX84B2V7-7-F reliable?
The price and inventory of BZX84B2V7-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84B2V7-7-F is usually 5 days.
3.What payment methods are accepted for BZX84B2V7-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84B2V7-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84B2V7-7-F?
BZX84B2V7-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84B2V7-7-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 BZX84B2V7-7-F?
For technical support, including BZX84B2V7-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84B2V7-7-F requirements.
6.How does Aetrix verify that BZX84B2V7-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84B2V7-7-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 BZX84B2V7-7-F meets industry standards.
7.What is the process for return or replacement of BZX84B2V7-7-F?
All BZX84B2V7-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84B2V7-7-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 BZX84B2V7-7-F part is unused and in its original packaging.
Return procedure for BZX84B2V7-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84B2V7-7-F Tags
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MMBZ5240B-7-F
Diodes Incorporated
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Diodes Incorporated
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MMSZ5231B-7-F
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BZT52C15S-7-F
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