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onsemi BZX84B8V2LT1
- Part No.:
- BZX84B8V2LT1
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84B8V2LT1.pdf
- Description:
- DIODE ZENER 8.2V 225MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,774
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Product details
Overview
BZX84B8V2LT1 from onsemi is a tight-tolerance Zener diode in SOT-23 package, providing precise 8.2 V voltage regulation at 5 mA test current with ±1% nominal voltage tolerance (8.04 V to 8.36 V), 15 Ω dynamic impedance, and 0.7 μA maximum reverse leakage at 6.6 V. It serves as a stable reference or overvoltage clamp in low-power portable electronics.
For engineers reviewing the BZX84B8V2LT1 datasheet, pinout, applications, or equivalent options, key selection criteria include its 1% Zener voltage tolerance, 250 mW power rating on FR-5 board, −65 °C to +150 °C operating temperature range, and ESD robustness (Class 3, >16 kV HBM).
Technical Context
This device operates in reverse-biased Zener breakdown mode, delivering stable voltage regulation with minimal thermal drift-its temperature coefficient is +3.2 mV/°C at 5 mA, enabling predictable behavior across industrial temperature ranges. The SOT-23 package supports automated placement and offers low parasitic capacitance (135 pF at 0 V, 1 MHz) for high-frequency stability.
Designed for space-constrained applications, it maintains regulation under low-current conditions (tested at 2 mA, 5 mA, and 10 mA), with forward voltage ≤0.90 V at 10 mA. Its no-connection pin (Pin 2) isolates unused terminals, simplifying PCB layout while preserving thermal performance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 8.2 V nominal, 8.04–8.36 V min–max at 5 mA - enables precision biasing and reference generation |
| Power Dissipation | 250 mW on FR-5 board - supports continuous operation in compact consumer PCBs without forced cooling |
| Zener Impedance | 15 Ω max at 5 mA - ensures minimal output voltage variation under load transients |
| Reverse Leakage | 0.7 μA max at 6.6 V - guarantees low quiescent current in battery-powered standby circuits |
| Temperature Coefficient | +3.2 mV/°C at 5 mA - provides predictable, positive drift for temperature-compensated designs |
| Capacitance | 135 pF at 0 V, 1 MHz - suitable for filtering and decoupling up to mid-frequency signal paths |
| ESD Rating | Class 3 (>16 kV HBM) - withstands handling and system-level electrostatic discharge without degradation |
Pinout & Package
SOT-23 (TO-236) surface-mount package: 2.90 mm × 1.30 mm × 1.00 mm body, Pb-free, RoHS compliant, cathode marked by band. Thermal resistance junction-to-ambient is 500 °C/W on FR-5 board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Connected to lower-potential node in reverse-bias configuration; carries forward current during conduction |
| 2 | No Connection | Internally unconnected; electrically isolated to reduce parasitic coupling and simplify routing |
| 3 | Cathode | Connected to higher-potential node; defines regulated output voltage referenced to anode |
Key Features
| Feature | Design Value |
|---|---|
| Tight voltage tolerance | ±1% (8.04–8.36 V) - reduces need for post-production calibration in reference circuits |
| Low dynamic impedance | 15 Ω max - minimizes output voltage sag during step-load changes in power rail clamping |
| High ESD robustness | Class 3 (>16 kV HBM) - eliminates external ESD protection in handheld device I/O lines |
| Pb-free & RoHS compliant | Meets global environmental directives - supports compliance-critical industrial and automotive programs |
| Optimized for automated assembly | SOT-23 footprint with standardized tape-and-reel (3,000 pcs) - ensures high-yield pick-and-place integration |
Applications
| Portable Power Management | Microcontroller Reference Voltage |
|---|---|
Use Scenario: Voltage clamping and rail stabilization in lithium-ion battery-powered wearables with limited board area. IC Role / Device Role / Timing Role: Zener regulator providing fixed 8.2 V reference for analog sensor interface circuitry. Use Value: Tight 1% tolerance ensures consistent ADC reference accuracy across production units without trimming. |
Use Scenario: Generating a stable supply rail for MCU reset circuitry and internal bandgap references. IC Role / Device Role / Timing Role: Precision shunt regulator maintaining clean 8.2 V for brown-out detection logic. Use Value: Low 0.7 μA leakage preserves battery life in multi-year IoT endpoint deployments. |
| Automotive Body Electronics | Industrial Sensor Signal Conditioning |
Use Scenario: Overvoltage protection for LIN bus transceivers exposed to load-dump transients in 12 V systems. IC Role / Device Role / Timing Role: Clamp diode limiting input voltage to 8.2 V during surge events. Use Value: 15 Ω Zener impedance ensures fast response to <100 ns spikes without overshoot. |
Use Scenario: Biasing and level-shifting for 4–20 mA current-loop transmitters in factory automation modules. IC Role / Device Role / Timing Role: Stable voltage reference for op-amp gain-setting networks and DAC output buffers. Use Value: +3.2 mV/°C TC allows predictable compensation when paired with NTC thermistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84C8V2LT1G | Standard-tolerance version: 7.7–8.7 V range (±6.1%) vs. BZX84B8V2LT1's 8.04–8.36 V (±1%) | Acceptable where calibration or trimming compensates for wider voltage spread | Select when cost sensitivity outweighs precision requirements and board-level tuning is feasible |
| SZBZX84B8V2LT1G | AEC-Q101 qualified, PPAP-capable, automotive-grade variant of same electrical specs and package | Required for automotive ECUs, body control modules, and ASIL-B supporting functions | Choose for automotive production where traceability, qualification, and change control are mandated |
Compared with BZX84C8V2LT1G, BZX84B8V2LT1 offers tighter regulation critical for uncalibrated systems; compared with SZBZX84B8V2LT1G, it lacks automotive qualification but delivers identical electrical performance at lower cost for industrial and consumer use.
Availability
BZX84B8V2LT1 is available at Aetrix Electronics and suitable for portable power management, microcontroller reference voltage generation, and industrial sensor signal conditioning requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for BZX84B8V2LT1 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
BZX84B8V2LT1 belongs to the BZX84BxxxLT1G tight-tolerance Zener series, engineered for precision voltage reference and clamping in space-constrained, high-reliability applications such as handheld portables and automotive subsystems.
FAQ
What is the Zener voltage tolerance of BZX84B8V2LT1?
The BZX84B8V2LT1 has a tight Zener voltage tolerance of ±1%, specified as 8.04 V minimum to 8.36 V maximum at 5 mA test current. This narrow range eliminates the need for unit-level trimming in precision reference designs and ensures consistent performance across manufacturing lots without post-assembly calibration.
Does BZX84B8V2LT1 support automated PCB assembly?
Yes, BZX84B8V2LT1 uses the industry-standard SOT-23 package optimized for high-speed pick-and-place machines. It ships in 3,000-piece tape-and-reel format with orientation defined per onsemi's BRD8011/D specification, and its Pb-free, RoHS-compliant finish ensures compatibility with lead-free reflow profiles up to 260°C for 10 seconds.
How does the temperature coefficient affect BZX84B8V2LT1 performance?
BZX84B8V2LT1 exhibits a +3.2 mV/°C temperature coefficient at 5 mA, meaning its Zener voltage increases predictably with rising junction temperature. This positive drift enables straightforward compensation in temperature-sensitive circuits-e.g., pairing with NTC thermistors-and ensures monotonic behavior from −65 °C to +150 °C without reversal or instability.
What is the maximum reverse leakage current for BZX84B8V2LT1?
The maximum reverse leakage current for BZX84B8V2LT1 is 0.7 μA at VR = 6.6 V and TA = 25 °C. This ultra-low leakage supports multi-year battery life in always-on sensor nodes and ensures negligible loading on high-impedance reference dividers in precision analog front-ends.
Is BZX84B8V2LT1 suitable for automotive applications?
The standard BZX84B8V2LT1 is not AEC-Q101 qualified. For automotive use, select the SZBZX84B8V2LT1G variant, which shares identical electrical specifications and SOT-23 packaging but adds automotive-grade qualification, PPAP capability, and enhanced change-control documentation required for Tier 1 supply chains.
BZX84B8V2LT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- BZX84BxxxLT1
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 8.2 V
- Tolerance:
- ±2%
- Power - Max:
- 225 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 (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3 (TO-236)
BZX84B8V2LT1 FAQ
1.How can I place an order for BZX84B8V2LT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84B8V2LT1 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 BZX84B8V2LT1 reliable?
The price and inventory of BZX84B8V2LT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84B8V2LT1 is usually 5 days.
3.What payment methods are accepted for BZX84B8V2LT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84B8V2LT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84B8V2LT1?
BZX84B8V2LT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84B8V2LT1 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 BZX84B8V2LT1?
For technical support, including BZX84B8V2LT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84B8V2LT1 requirements.
6.How does Aetrix verify that BZX84B8V2LT1 is sourced from the original manufacturer or authorized distributors?
All BZX84B8V2LT1 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 BZX84B8V2LT1 meets industry standards.
7.What is the process for return or replacement of BZX84B8V2LT1?
All BZX84B8V2LT1 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84B8V2LT1, 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 BZX84B8V2LT1 part is unused and in its original packaging.
Return procedure for BZX84B8V2LT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84B8V2LT1 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
-
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
Micro Commercial Co
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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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