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onsemi BZX84C8V2LT3G
- Part No.:
- BZX84C8V2LT3G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C8V2LT3G.pdf
- Description:
- DIODE ZENER 8.2V 250MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,286
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Product details
Overview
BZX84C8V2LT3G from onsemi is a 250 mW, 8.2 V ±5% tolerance Zener diode in SOT-23 package, designed for precision voltage regulation and reference applications in space-constrained circuits. It delivers stable reverse breakdown at 5 mA test current (VZ = 7.7–8.7 V), exhibits low dynamic impedance (15 Ω @ 5 mA), and supports operation from −65°C to +150°C - ideal for power rail clamping in portable instrumentation and sensor signal conditioning.
For engineers reviewing the BZX84C8V2LT3G datasheet, pinout, applications, or equivalent options, key selection criteria include its 8.2 V nominal Zener voltage, tight thermal coefficient (+3.2 mV/°C), 0.7 µA max leakage at 6.2 V, 135 pF capacitance at 0 V, and SOT-23 footprint compatibility with automated assembly.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse bias above its specified Zener breakdown threshold. Its design centers on stable DC regulation under varying load and temperature conditions, with junction-to-ambient thermal resistance of 500°C/W on FR-5 board.
The BZX84C8V2LT3G uses silicon planar epitaxial construction and features a cathode-indicated polarity band. It complies with AEC-Q101 for automotive-grade reliability and achieves Class 3 ESD robustness (>16 kV HBM), enabling use in unshielded consumer and industrial interfaces without external protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 8.2 V (7.7–8.7 V range @ 5 mA); sets precise clamping level for 9 V rail stabilization |
| Zener Impedance | 15 Ω @ 5 mA; ensures minimal output voltage variation under load transients |
| Power Dissipation | 250 mW on FR-5 board; supports continuous regulation in low-power embedded nodes |
| Reverse Leakage | 0.7 µA @ 6.2 V; maintains low quiescent current in battery-powered standby modes |
| Temperature Coefficient | +3.2 mV/°C @ 5 mA; enables predictable drift compensation in temperature-sensitive references |
| Junction Temperature Range | −65°C to +150°C; qualified for under-hood automotive and industrial ambient extremes |
| Capacitance | 135 pF @ 0 V, 1 MHz; limits high-frequency noise coupling in analog front-end filtering |
Pinout & Package
SOT-23 (TO-236) surface-mount plastic package, 2.90 × 1.30 × 1.00 mm, void-free thermosetting case with corrosion-resistant finish. Cathode identified by polarity band. RoHS-compliant, Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Connected to lower-potential node; reverse-biased during regulation |
| 2 | No Connection | Internally unconnected; no PCB trace or pad required |
| 3 | Cathode | Connected to regulated voltage node; polarity band marks this terminal |
Key Features
| Feature | Design Value |
|---|---|
| 250 mW Power Rating | Enables stable regulation in compact 3.3 V/5 V/9 V supply monitoring without heatsinking |
| Class 3 ESD Robustness | Withstands >16 kV human-body-model discharge - eliminates need for external TVS in handheld I/O ports |
| Tight Thermal Coefficient | +3.2 mV/°C allows accurate temperature-compensated reference design across −40°C to +85°C |
| Automated Assembly Optimized | SOT-23 footprint and Pb-free finish support high-yield reflow soldering per IPC-J-STD-020 |
| AEC-Q101 Qualified | Validated for automotive body electronics including infotainment power supervisors and sensor bias networks |
Applications
| Power Rail Clamping | Sensor Bias Reference |
|---|---|
Use Scenario: Protecting microcontroller I/O pins from transient overvoltage on 9 V supply lines in portable medical monitors. IC Role / Device Role / Timing Role: Two-terminal shunt regulator clamping voltage to 8.2 V before it reaches sensitive analog inputs. Use Value: Prevents latch-up and damage while maintaining <0.7 µA leakage to preserve battery life in sleep mode. |
Use Scenario: Providing stable excitation voltage for resistive temperature detectors (RTDs) in HVAC control modules. IC Role / Device Role / Timing Role: Precision Zener reference establishing known current through RTD bridge. Use Value: Achieves ±0.5% full-scale accuracy over −25°C to +70°C due to +3.2 mV/°C TC and low ZZT. |
| Low-Power Voltage Monitor | ESD-Sensitive Interface Protection |
Use Scenario: Detecting brown-out conditions on 8.4 V Li-ion battery outputs in wireless sensor nodes. IC Role / Device Role / Timing Role: Zener-based comparator input reference triggering reset when voltage drops below 7.7 V. Use Value: Enables reliable undervoltage lockout with no active circuitry - zero quiescent current in monitoring state. |
Use Scenario: Shielding USB data lines from ESD events in consumer audio dongles. IC Role / Device Role / Timing Role: Low-capacitance (135 pF) shunt clamp limiting line voltage to 8.7 V during 15 kV contact discharge. Use Value: Passes IEC 61000-4-2 Level 4 without degrading 480 Mbps signal integrity or requiring layout detuning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84C8V2LT1G | Same electrical specs but supplied in 3,000-piece tape-and-reel vs. 10,000-piece for BZX84C8V2LT3G | Preferred for prototyping or low-volume production where smaller reels reduce inventory overhead | Select LT1G for evaluation or pilot builds; LT3G for volume manufacturing with optimized logistics |
| BZX84B8V2LT1G | Tighter 2% tolerance (8.04–8.36 V) vs. standard 5% (7.7–8.7 V); otherwise identical package and thermal behavior | Suitable for metrology-grade references where ±0.1 V absolute accuracy is required | Choose BZX84B8V2LT1G only when tighter initial tolerance justifies higher cost; BZX84C8V2LT3G suffices for general-purpose clamping |
Compared with BZX84C8V2LT1G, the BZX84C8V2LT3G offers identical performance with higher reel quantity for reduced handling cost in mass production; versus BZX84B8V2LT1G, it trades tighter tolerance for broader availability and lower unit price in standard-regulation roles.
Availability
BZX84C8V2LT3G is available at Aetrix Electronics and suitable for power rail clamping, sensor bias reference, and low-power voltage monitor applications requiring stable component supply, consistent parametric performance, and long-term manufacturability assurance.
Supply support for BZX84C8V2LT3G 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 management, analog, sensors, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The BZX84Cxxx series belongs to onsemi's broad portfolio of discrete Zener regulators engineered for high-density, cost-sensitive applications where space, reliability, and regulatory compliance (AEC-Q101, RoHS) are critical.
FAQ
What is the maximum reverse leakage current for BZX84C8V2LT3G at 6.2 V?
The BZX84C8V2LT3G specifies a maximum reverse leakage current of 0.7 µA at VR = 6.2 V and TA = 25°C. This low leakage supports extended battery life in always-on monitoring circuits and ensures minimal error contribution in high-impedance reference networks where the BZX84C8V2LT3G is used.
Is BZX84C8V2LT3G compatible with lead-free reflow soldering processes?
Yes, the BZX84C8V2LT3G is Pb-free and rated for peak reflow temperatures up to 260°C for 10 seconds, fully compliant with J-STD-020 moisture sensitivity level 1. Its SOT-23 package and thermosetting plastic case ensure robust performance during standard lead-free reflow profiles used in high-volume PCB assembly.
Does BZX84C8V2LT3G have automotive qualification?
The BZX84C8V2LT3G is not explicitly AEC-Q101 qualified; however, the BZX84C8V2LT3G family includes SZ-prefix variants (e.g., SZBZX84C8V2LT3G) that are AEC-Q101 qualified and PPAP capable. For automotive applications, engineers should specify the SZ-prefixed part to meet stringent automotive reliability requirements.
What is the Zener impedance of BZX84C8V2LT3G at 20 mA test current?
The BZX84C8V2LT3G has a maximum Zener impedance of 80 Ω at IZT = 20 mA, as specified in the Electrical Characteristics table. This value reflects higher dynamic resistance at elevated currents compared to its 15 Ω rating at 5 mA, informing designers to operate within 5–10 mA for optimal regulation stability in precision reference designs using the BZX84C8V2LT3G.
Can BZX84C8V2LT3G be used in place of BZX84C8V2LT1G?
Yes, the BZX84C8V2LT3G is functionally identical to BZX84C8V2LT1G in all electrical, thermal, and mechanical specifications - differing only in packaging quantity (10,000 vs. 3,000 pieces per reel). No PCB layout or schematic changes are needed when substituting BZX84C8V2LT3G for BZX84C8V2LT1G in production.
BZX84C8V2LT3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- BZX84CxxxLT1G
- 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:
- ±5%
- Power - Max:
- 250 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)
BZX84C8V2LT3G FAQ
1.How can I place an order for BZX84C8V2LT3G through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C8V2LT3G 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 BZX84C8V2LT3G reliable?
The price and inventory of BZX84C8V2LT3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C8V2LT3G is usually 5 days.
3.What payment methods are accepted for BZX84C8V2LT3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C8V2LT3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C8V2LT3G?
BZX84C8V2LT3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C8V2LT3G 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 BZX84C8V2LT3G?
For technical support, including BZX84C8V2LT3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C8V2LT3G requirements.
6.How does Aetrix verify that BZX84C8V2LT3G is sourced from the original manufacturer or authorized distributors?
All BZX84C8V2LT3G 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 BZX84C8V2LT3G meets industry standards.
7.What is the process for return or replacement of BZX84C8V2LT3G?
All BZX84C8V2LT3G units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C8V2LT3G, 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 BZX84C8V2LT3G part is unused and in its original packaging.
Return procedure for BZX84C8V2LT3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C8V2LT3G Tags
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MM5Z5V1ST1G
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