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Diodes Incorporated BZX84C8V2T-7-F
- Part No.:
- BZX84C8V2T-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOT-523
- Datasheet:
-
BZX84C8V2T-7-F.pdf
- Description:
- DIODE ZENER 8.2V 150MW SOT523
- Quantity:
- Payment:
- Shipping:
Inventory:3,272
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Product details
Overview
BZX84C8V2T-7-F from Diodes Incorporated is a 150 mW surface-mount Zener diode with nominal zener voltage 8.2 V (min 7.7 V, max 8.7 V at 5 mA), zener impedance 15 Ω at 5 mA and 80 Ω at 1 mA, reverse current ≤0.7 µA at 5.0 V, and temperature coefficient +3.2 to +6.2 mV/°C. It serves as a precision voltage reference or overvoltage clamp in low-power analog signal conditioning circuits.
For engineers reviewing the BZX84C8V2T-7-F datasheet, BZX84C8V2T-7-F pinout, BZX84C8V2T-7-F application, or BZX84C8V2T-7-F equivalent, key selection criteria include zener voltage tolerance, dynamic impedance at operating current, thermal resistance (833 °C/W), SOT-523 package compatibility, and RoHS-compliant lead-free plating.
Technical Context
This Zener diode uses planar die construction for stable breakdown characteristics and low leakage. Its 150 mW power rating and 833 °C/W junction-to-ambient thermal resistance require careful PCB layout per Diodes Inc.'s recommended pad pattern (AP02001) to maintain rated performance at TA = 25°C.
It operates across –65°C to +150°C and exhibits a positive temperature coefficient (+3.2 to +6.2 mV/°C), making it suitable for biasing circuits where voltage drift compensation is needed. Reverse current remains ≤0.7 µA at VR = 5.0 V, supporting low-quiescent-current designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nom/Min/Max) | 8.2 V / 7.7 V / 8.7 V at IZT = 5 mA - defines regulation window under standard test conditions |
| Zener Impedance | 15 Ω at 5 mA, 80 Ω at 1 mA - determines output voltage stability under load variation |
| Power Dissipation | 150 mW - sets maximum continuous DC power handling on FR-4 board with specified pad layout |
| Reverse Current | ≤0.7 µA at VR = 5.0 V - ensures minimal leakage in standby or high-impedance sensing nodes |
| Temp. Coefficient | +3.2 to +6.2 mV/°C at IZT = 5 mA - quantifies voltage drift with ambient temperature change |
| Thermal Resistance | 833 °C/W junction-to-ambient - requires thermal-aware layout to avoid derating above 25°C ambient |
| Package | SOT-523 - 1.6 mm × 0.8 mm footprint ideal for space-constrained PCBs |
Pinout & Package
SOT-523 is a 3-terminal ultra-small plastic package with cathode-marked top-side orientation. Polarity follows standard Zener convention: anode (pin 1), cathode (pin 2), no third functional terminal - the third leadframe tab is internal thermal slug, not externally connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal | Connected to lower-potential node during reverse-bias regulation |
| Cathode (Pin 2) | Zener breakdown terminal | Connected to higher-potential node; marking band identifies this pin |
| Thermal Tab (Pin 3) | Internal heat path | Non-electrical; soldered to copper pour for thermal relief but not circuit-connected |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SOT-523 footprint | 1.6 mm × 0.8 mm area saves >60% board space vs. SOT-23 in dense layouts |
| Planar die construction | Enables tight zener voltage tolerance (±6.1%) and repeatable breakdown characteristics |
| Lead-free/RoHS-compliant plating | Matte tin finish over Alloy 42 leadframe meets IPC-J-STD-020D Level 1 moisture sensitivity |
| Green molding compound | Halogen-free encapsulation (Date Code UO and newer) supports environmental compliance programs |
Applications
| Industrial Sensor Signal Conditioning | USB Port Overvoltage Protection |
|---|---|
Use Scenario: Stabilizing reference voltage for 12-bit ADC front-end in temperature transmitters. IC Role / Device Role / Timing Role: Zener diode provides 8.2 V shunt reference to bias op-amp input stage and clamp transient spikes. Use Value: Low 15 Ω dynamic impedance ensures <10 mV regulation error across 1–5 mA load variation. | Use Scenario: Protecting 5 V USB data line receivers from ESD-induced overvoltage. IC Role / Device Role / Timing Role: Acts as low-leakage (≤0.7 µA) clamping diode between D+ and ground. Use Value: Fast response and precise 8.2 V breakdown prevent latch-up while minimizing standby current draw. |
| Low-Power IoT Node Voltage Reference | Automotive Cabin Control Panel Biasing |
Use Scenario: Generating stable bias for RF transceiver LDO enable circuitry in battery-powered trackers. IC Role / Device Role / Timing Role: Shunt regulator establishes clean 8.2 V rail for logic-level translation and reset supervision. Use Value: Positive tempco (+3.2 to +6.2 mV/°C) compensates for LDO dropout drift over –40°C to +85°C. | Use Scenario: Providing regulated supply to touch controller IC in dashboard interface modules. IC Role / Device Role / Timing Role: Zener clamps supply rail against load-dump transients up to 20 V. Use Value: 150 mW rating and 833 °C/W RθJA allow safe operation without heatsink in confined enclosure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5233BS-7-F | Zener voltage 8.2 V (same nominal), but 350 mW rating and SOT-323 package; 30 Ω Zzt at 20 mA | Higher power handling suits higher-current bias networks; larger footprint may conflict with ultra-dense layouts | Select when >150 mW dissipation or lower dynamic impedance at higher currents is required |
| BZX84-C8V2,215 | Same electrical specs, but SOT-23 package (2.9 mm × 1.3 mm); RoHS-compliant, same tempco range | Larger size eases hand-soldering and rework; less suitable for 0201-class density constraints | Select when assembly process favors SOT-23 or legacy footprint compatibility is mandatory |
Compared with MMBZ5233BS-7-F and BZX84-C8V2,215, the BZX84C8V2T-7-F offers optimal trade-off of ultra-compact SOT-523 size, 150 mW rating, and low-leakage performance - critical for miniaturized, battery-sensitive designs where board area and quiescent current dominate selection.
Availability
BZX84C8V2T-7-F is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, USB port overvoltage protection, and low-power IoT node voltage reference requiring stable component supply and full traceability.
Supply support for BZX84C8V2T-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 BZX84 series belongs to Diodes Inc.'s general-purpose Zener diode product line, engineered for precision voltage regulation and transient suppression in cost-sensitive, space-constrained consumer, computing, and industrial applications.
FAQ
What is the maximum reverse voltage before breakdown for BZX84C8V2T-7-F?
The nominal zener voltage is 8.2 V, with guaranteed breakdown occurring between 7.7 V (minimum) and 8.7 V (maximum) at test current IZT = 5 mA. Below 7.7 V, reverse current remains ≤0.7 µA at VR = 5.0 V; sustained operation below min VZ risks insufficient regulation.
Can BZX84C8V2T-7-F be used in place of a 9.1 V Zener diode?
No - its specified zener voltage range (7.7–8.7 V) does not overlap with the 8.5–9.6 V range of BZX84C9V1T. Substituting would cause under-regulation or excessive power dissipation; voltage-critical circuits require exact VZ matching per datasheet tolerances.
Is the SOT-523 package compatible with standard reflow profiles?
Yes - rated for Moisture Sensitivity Level 1 per J-STD-020D, it withstands standard Pb-free reflow profiles (peak 260°C) without preconditioning. The matte tin finish ensures reliable solderability per MIL-STD-202, Method 208.
Does BZX84C8V2T-7-F have a specified capacitance value?
No capacitance parameter is provided in the DS30262 datasheet. Figure 4 shows typical total capacitance trends across the BZX84 family (e.g., ~15 pF for 8.2 V devices), but Diodes Inc. does not specify or guarantee CT for BZX84C8V2T-7-F - it is not characterized for high-frequency AC coupling or filtering use.
BZX84C8V2T-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):
- 8.2 V
- Tolerance:
- ±6%
- Power - Max:
- 150 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-523
BZX84C8V2T-7-F FAQ
1.How can I place an order for BZX84C8V2T-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C8V2T-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 BZX84C8V2T-7-F reliable?
The price and inventory of BZX84C8V2T-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 BZX84C8V2T-7-F is usually 5 days.
3.What payment methods are accepted for BZX84C8V2T-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C8V2T-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C8V2T-7-F?
BZX84C8V2T-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C8V2T-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 BZX84C8V2T-7-F?
For technical support, including BZX84C8V2T-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C8V2T-7-F requirements.
6.How does Aetrix verify that BZX84C8V2T-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84C8V2T-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 BZX84C8V2T-7-F meets industry standards.
7.What is the process for return or replacement of BZX84C8V2T-7-F?
All BZX84C8V2T-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C8V2T-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 BZX84C8V2T-7-F part is unused and in its original packaging.
Return procedure for BZX84C8V2T-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C8V2T-7-F Tags
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Diodes Incorporated
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MMSZ5231B-7-F
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