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onsemi BZX84C10LT3G
- Part No.:
- BZX84C10LT3G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C10LT3G.pdf
- Description:
- DIODE ZENER 10V 250MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,840
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Product details
Overview
BZX84C10LT3G from onsemi is a 10 V ±6% Zener diode in SOT-23 package, rated for 250 mW power dissipation at 25°C, with 20 Ω dynamic impedance at 5 mA test current and 0.2 μA reverse leakage at 7.6 V. It provides precision voltage regulation in space-constrained DC biasing and reference circuits for portable electronics.
For engineers reviewing the BZX84C10LT3G datasheet, pinout, applications, or equivalent options, key selection criteria include nominal Zener voltage tolerance (±6%), thermal coefficient (+4.5 mV/°C), ESD robustness (>16 kV HBM), and SOT-23 footprint compatibility with high-density PCB layouts.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown to clamp voltage across its cathode-anode terminals. Its Zener mechanism delivers stable regulation under varying load currents from 1 mA to 20 mA, with temperature coefficient tightly specified at +4.5 mV/°C over −65°C to +150°C junction range.
The SOT-23 package features void-free thermosetting plastic construction, UL 94 V-0 flammability rating, and Pb-free RoHS compliance. Pin 1 is anode, Pin 2 is no connection, and Pin 3 is cathode - enabling unambiguous polarity identification via molded band marking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 9.4–10.6 V @ 5 mA - defines regulated output range for bias/reference circuits |
| Power Dissipation | 250 mW on FR-5 board @ 25°C - sets maximum continuous power handling before thermal derating |
| Zener Impedance | 20 Ω @ 5 mA - determines voltage deviation under load transients |
| Reverse Leakage | 0.2 μA @ 7.6 V - ensures minimal quiescent current in standby mode |
| Temperature Coefficient | +4.5 mV/°C @ 5 mA - quantifies voltage drift per degree Celsius change |
| Capacitance | 130 pF @ 0 V, 1 MHz - impacts high-frequency noise filtering capability |
| ESD Rating | Class 3 (>16 kV) HBM - supports robust handling in automated assembly environments |
Pinout & Package
SOT-23 (TO-236) surface-mount package: 2.90 mm × 1.30 mm × 1.00 mm body, 1.90 mm lead pitch, void-free thermosetting plastic case with corrosion-resistant finish. Cathode indicated by polarity band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Forward current entry point; connected to lower-potential node in regulation circuit |
| 2 | No Connection | Internally unconnected terminal; must remain floating in PCB layout |
| 3 | Cathode | Reverse-bias terminal; connects to regulated voltage node and heat sink path |
Key Features
| Feature | Design Value |
|---|---|
| 250 mW Power Rating | Enables use in low-power bias networks without external heatsinking on standard FR-5 PCBs |
| Tight Zener Tolerance | ±6% at 10 V allows predictable regulation without post-assembly trimming |
| Low Dynamic Impedance | 20 Ω ensures <100 mV output variation across 1–20 mA load current range |
| High ESD Robustness | >16 kV HBM rating eliminates need for external protection in handheld device designs |
| Pb-Free & RoHS Compliant | Meets global environmental regulations and reflow soldering requirements (260°C/10 s) |
Applications
| Portable Power Management | Signal Level Clamping |
|---|---|
|
Use Scenario: Voltage reference for LDO feedback divider in Bluetooth earbuds. IC Role / Device Role / Timing Role: Zener diode providing stable 10 V reference to set output voltage of adjustable regulator. Use Value: Maintains ±1% output accuracy over temperature due to known +4.5 mV/°C TC and low 20 Ω impedance. |
Use Scenario: Input protection clamp on RS-232 receiver line. IC Role / Device Role / Timing Role: Bidirectional transient suppressor limiting signal swing to ±10 V relative to ground. Use Value: 130 pF capacitance minimizes signal distortion while 0.2 μA leakage avoids loading high-impedance sources. |
| Automotive Sensor Biasing | Industrial Analog Front-End |
|
Use Scenario: Excitation voltage source for NTC thermistor in cabin temperature sensor module. IC Role / Device Role / Timing Role: Precision Zener supplying stable 10 V bias to thermistor bridge network. Use Value: AEC-Q101 qualified variant availability ensures reliability in automotive ambient conditions (−40°C to +125°C). |
Use Scenario: Reference voltage generator for 12-bit ADC in programmable logic controller I/O card. IC Role / Device Role / Timing Role: Low-drift Zener establishing accurate full-scale input threshold. Use Value: +4.5 mV/°C TC enables software compensation to maintain <0.5 LSB error over industrial temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84C10LT1G | Same electrical specs but supplied in 3,000-piece tape-and-reel vs. 10,000-piece for BZX84C10LT3G | Preferred for prototyping or low-volume production where smaller reel size reduces inventory overhead | Select when matching small-batch procurement cycles or evaluating on evaluation boards with limited reel capacity |
| BZX84B10LT1G | Tighter ±2% tolerance (9.8–10.2 V) and identical 20 Ω Zz, but higher cost and lower volume availability | Suitable for metrology-grade references where ±6% tolerance of BZX84C10LT3G is insufficient | Choose only when absolute voltage accuracy outweighs cost sensitivity and supply chain flexibility |
Compared with BZX84C10LT3G, BZX84C10LT1G offers identical performance in a smaller reel format ideal for development, while BZX84B10LT1G trades cost and availability for tighter voltage control - making BZX84C10LT3G optimal for high-volume, cost-sensitive regulation where ±6% tolerance is acceptable.
Availability
BZX84C10LT3G is available at Aetrix Electronics and suitable for portable electronics, industrial sensor interfaces, and automotive cabin modules requiring stable component supply with consistent SOT-23 packaging and RoHS compliance.
Supply support for BZX84C10LT3G 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 is a global semiconductor supplier specializing in energy-efficient silicon solutions for automotive, industrial, cloud, and IoT applications.
The BZX84C10LT3G belongs to onsemi's Zener voltage regulator family designed for compact, reliable DC voltage reference and clamping in high-density portable and automotive systems.
FAQ
What is the Zener voltage tolerance of BZX84C10LT3G?
The BZX84C10LT3G has a nominal Zener voltage of 10 V with a tolerance of ±6%, meaning the actual breakdown voltage falls between 9.4 V and 10.6 V when tested at 5 mA. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the onsemi datasheet, and applies specifically to the BZX84CxxxLT3G series under standard test conditions (TA = 25°C).
Does BZX84C10LT3G have a no-connect pin, and how is it identified?
Yes, BZX84C10LT3G has a no-connect terminal at Pin 2, as explicitly stated in the datasheet's pinout diagrams (Style 8, page 6) and Electrical Characteristics tables. The device uses a three-terminal SOT-23 package where Pin 1 is anode, Pin 2 is internally unconnected, and Pin 3 is cathode - marked with a polarity band adjacent to Pin 3.
What is the maximum power dissipation for BZX84C10LT3G on FR-5 board?
BZX84C10LT3G is rated for 250 mW total power dissipation on FR-5 board at 25°C ambient temperature, with thermal derating of 2.0 mW/°C above that temperature. This value is specified in the Maximum Ratings table (page 2) and validated for standard 1.0 × 0.75 × 0.62 inch FR-5 substrate per note 1.
Is BZX84C10LT3G suitable for automotive applications?
The BZX84C10LT3G itself is not AEC-Q101 qualified; however, the SZBZX84C10LT3G variant - which shares identical electrical and mechanical specifications - is explicitly qualified for automotive use and PPAP capable. Engineers requiring automotive qualification must select the SZ-prefix version, as noted in the Features section (page 1) and Ordering Information table (page 1).
What is the Zener impedance of BZX84C10LT3G and why does it matter?
BZX84C10LT3G has a maximum Zener impedance (ZZT) of 20 Ω measured at 5 mA test current, as specified in the Electrical Characteristics table (page 3). This parameter directly determines how much the output voltage varies under changing load current - lower impedance yields tighter regulation, critical for stable reference generation in analog circuits.
BZX84C10LT3G 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):
- 10 V
- Tolerance:
- ±6%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 200 nA @ 7 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)
BZX84C10LT3G FAQ
1.How can I place an order for BZX84C10LT3G through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C10LT3G 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 BZX84C10LT3G reliable?
The price and inventory of BZX84C10LT3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C10LT3G is usually 5 days.
3.What payment methods are accepted for BZX84C10LT3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C10LT3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C10LT3G?
BZX84C10LT3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C10LT3G 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 BZX84C10LT3G?
For technical support, including BZX84C10LT3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C10LT3G requirements.
6.How does Aetrix verify that BZX84C10LT3G is sourced from the original manufacturer or authorized distributors?
All BZX84C10LT3G 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 BZX84C10LT3G meets industry standards.
7.What is the process for return or replacement of BZX84C10LT3G?
All BZX84C10LT3G units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C10LT3G, 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 BZX84C10LT3G part is unused and in its original packaging.
Return procedure for BZX84C10LT3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C10LT3G Tags
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BZT52C5V6T-7
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Diodes Incorporated
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Diodes Incorporated
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MM5Z5V1ST1G
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SMAJ4744A-TP
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