My Inquiry
My Account
Diodes Incorporated BZX84C8V2-7-F
- Part No.:
- BZX84C8V2-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C8V2-7-F.pdf
- Description:
- DIODE ZENER 8.2V 300MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:35,482
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX84C8V2-7-F from Diodes Incorporated is a 350 mW surface-mount Zener diode with nominal zener voltage 8.2 V (±0.5 V tolerance), 5 mA test current, 15 Ω dynamic impedance at IZT, and 0.7 µA maximum reverse leakage at 5.0 V. It operates in SOT23 package and serves as precision voltage reference or overvoltage clamp in low-power analog signal conditioning circuits.
For engineers reviewing the BZX84C8V2-7-F datasheet, BZX84C8V2-7-F pinout, BZX84C8V2-7-F application, or BZX84C8V2-7-F equivalent, key selection criteria include zener voltage accuracy at 5 mA, thermal resistance (357 °C/W), RoHS/Green compliance, AEC-Q101 qualification, and SOT23 footprint compatibility for automated PCB assembly.
Technical Context
This Zener diode uses planar die construction to ensure stable breakdown characteristics across temperature and lifetime. Its 8.2 V nominal zener voltage is specified at 5.0 mA test current with ±6.1% tolerance (7.7–8.7 V range) and exhibits a positive temperature coefficient of +3.2 mV/°C.
The device delivers 350 mW power dissipation under ambient-temperature terminal conditions and derates linearly above +25°C per Figure 1. Reverse leakage remains ≤0.7 µA at VR = 5.0 V, supporting low-current biasing in voltage regulation and protection nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.2 V nominal at IZT = 5 mA; min/max 7.7–8.7 V defines usable regulation window |
| Power Dissipation (PD) | 350 mW at TA = 25°C with terminals held at ambient - sets max continuous clamp energy |
| Zener Impedance (ZZT) | 15 Ω at f = 1 kHz and IZT = 5 mA - determines output voltage stability under load variation |
| Reverse Leakage (IR) | ≤0.7 µA at VR = 5.0 V - ensures minimal quiescent current in high-impedance reference paths |
| Temperature Coefficient | +3.2 mV/°C - enables predictable drift compensation in temperature-sensitive references |
| Package | SOT23 - 3-pin surface-mount outline with 0.915 mm lead pitch and 2.40 mm body length |
Pinout & Package
Package: SOT23 - molded plastic case, UL 94V-0 rated, matte tin-plated alloy 42 leadframe, polarity indicated by cathode band on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Anode) | Current entry during forward bias; grounded node in shunt regulator | Connected to system ground or low-impedance return path when used as voltage reference |
| 2 (Cathode) | Zener breakdown terminal; voltage sensing node | Connected to regulated rail or input node requiring clamping - carries full zener current |
| 3 (Anode) | Second anode connection - internally tied to Pin 1 | Provides mechanical robustness and thermal conduction; must be connected to same net as Pin 1 |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures repeatable zener voltage distribution and long-term stability under thermal cycling |
| AEC-Q101 qualified | Validated for automotive electronics use including engine control modules and body controllers |
| Lead-free & RoHS 3 compliant | Meets EU Directive 2015/863/EU with <900 ppm Br, <900 ppm Cl, <1000 ppm Sb |
| SOT23 footprint | Enables high-density placement and compatibility with standard pick-and-place equipment |
Applications
| Industrial Sensor Signal Conditioning | Automotive Body Control Module Reference |
|---|---|
|
Use Scenario: Stabilizing ADC reference voltage in 4–20 mA loop-powered temperature transmitters. IC Role / Device Role / Timing Role: Shunt voltage reference providing 8.2 V bias to op-amp and ADC circuitry. Use Value: Maintains ±1% reference accuracy over –40°C to +85°C due to low tempco and tight VZ tolerance. |
Use Scenario: Clamping microcontroller I/O voltage against load dump transients in door module ECUs. IC Role / Device Role / Timing Role: Overvoltage protection element limiting input rail to 8.2 V during 12 V system surges. Use Value: Absorbs up to 350 mW transient energy without degradation, meeting ISO 7637-2 Pulse 5a requirements. |
| Consumer Power Adapter Feedback | Medical Portable Device Bias Supply |
|
Use Scenario: Providing feedback voltage to optocoupler in isolated flyback converter secondary-side regulation. IC Role / Device Role / Timing Role: Precision zener setting error amplifier reference point for output voltage control. Use Value: Enables ±2% output regulation with minimal parts count and no external trimming required. |
Use Scenario: Generating stable 8.2 V bias for analog front-end amplifiers in battery-powered ECG monitors. IC Role / Device Role / Timing Role: Low-leakage voltage reference ensuring <1 µA standby current in sleep mode. Use Value: Delivers 0.7 µA max reverse current at 5 V, extending battery life beyond 72 hours per charge cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5233BS-7-F | Zener voltage 8.2 V, but rated at 200 mW PD and 30 Ω ZZT; SOT-323 package | Lower power handling limits use in transient suppression; smaller footprint reduces board area | Select when space-constrained layouts outweigh need for 350 mW surge capacity |
| BZX84-C8V2,115 | Same electrical specs, but packaged in 10,000-piece tape-and-reel (–13-F suffix); identical SOT23 | No functional difference - only packaging and ordering quantity distinction | Choose for high-volume production runs where reel size impacts line efficiency |
Compared with MMBZ5233BS-7-F, BZX84C8V2-7-F offers +75% power margin and lower impedance for tighter regulation; versus BZX84-C8V2,115, it provides identical performance with optimized logistics for medium-batch procurement.
Availability
BZX84C8V2-7-F is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, automotive body control modules, and consumer power adapter feedback requiring stable component supply with AEC-Q101 reliability assurance.
Supply support for BZX84C8V2-7-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.
This device belongs to the BZX84C series of general-purpose Zener diodes, engineered for cost-effective, high-yield voltage reference and protection in consumer, industrial, and automotive applications.
FAQ
What is the maximum allowable zener current for continuous operation?
The absolute maximum DC zener current is derived from PD/VZ = 350 mW / 8.2 V ≈ 42.7 mA. However, sustained operation above 20 mA requires thermal derating per Figure 1 and is limited by junction temperature rise. For reliable 24/7 operation at +70°C ambient, recommended IZ is ≤15 mA.
Is BZX84C8V2-7-F suitable for use in automotive powertrain systems?
Yes - it is qualified to AEC-Q101 Rev D for high-reliability automotive applications. While commonly deployed in body electronics, its 150°C max operating temperature and robust construction support use in non-safety-critical powertrain subsystems such as HVAC controls and lighting modules, provided voltage transients remain within ISO 7637-2 Class III limits.
How does the SOT23 package affect thermal performance compared to DO-35?
The SOT23 package has RθJA = 357 °C/W (vs. ~500 °C/W for DO-35), enabling higher power density on modern PCBs. Its low 0.008 g mass and exposed copper leads improve heat transfer to copper pours, but requires adherence to Diodes' recommended pad layout (2.0 mm × 0.9 mm thermal pad) to achieve rated 350 mW dissipation.
Can this Zener diode replace a 7.5 V part in an existing design?
No - the 8.2 V nominal voltage differs by >9% from 7.5 V, exceeding typical feedback loop tolerance. Substituting would shift regulated output voltage proportionally and may cause overvoltage stress on downstream components. Use BZX84C7V5-7-F instead, which has 7.5 V nominal rating and matching SOT23 package.
BZX84C8V2-7-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):
- 8.2 V
- Tolerance:
- ±6%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 700 nA @ 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-23-3
BZX84C8V2-7-F FAQ
1.How can I place an order for BZX84C8V2-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C8V2-7-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 BZX84C8V2-7-F reliable?
The price and inventory of BZX84C8V2-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C8V2-7-F is usually 5 days.
3.What payment methods are accepted for BZX84C8V2-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C8V2-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C8V2-7-F?
BZX84C8V2-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C8V2-7-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 BZX84C8V2-7-F?
For technical support, including BZX84C8V2-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C8V2-7-F requirements.
6.How does Aetrix verify that BZX84C8V2-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84C8V2-7-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 BZX84C8V2-7-F meets industry standards.
7.What is the process for return or replacement of BZX84C8V2-7-F?
All BZX84C8V2-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C8V2-7-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 BZX84C8V2-7-F part is unused and in its original packaging.
Return procedure for BZX84C8V2-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C8V2-7-F Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
