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onsemi SZBZX84B10LT1G
- Part No.:
- SZBZX84B10LT1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
SZBZX84B10LT1G.pdf
- Description:
- DIODE ZENER 10V 250MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,564
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Product details
Overview
SZBZX84B10LT1G from onsemi is a 10 V ±2% tolerance 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 delivers precision voltage regulation in space-constrained power rail monitoring and reference circuits.
For engineers reviewing the SZBZX84B10LT1G datasheet, pinout, applications, or equivalent options, key selection criteria include tight 2% voltage tolerance, low 20 Ω Zener impedance, AEC-Q101 qualification for automotive use, and Pb-free SOT-23 packaging compatible with automated assembly.
Technical Context
This device operates as a two-terminal voltage reference using controlled reverse breakdown. Its 10 V nominal Zener voltage is specified at 5 mA test current with ±2% initial tolerance and a +4.5 mV/°C temperature coefficient, enabling stable regulation across −65°C to +150°C junction temperature range.
The SOT-23 package features an anode-cathode configuration (Pin 1 = Anode, Pin 3 = Cathode, Pin 2 = No Connection), optimized for high-density PCB layouts and compliant with Class 3 ESD rating (>16 kV HBM). It supports FR-4 and alumina substrates with thermal resistance of 500°C/W and 417°C/W respectively.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 9.8 V to 10.2 V at 5 mA - ensures precise 10 V reference with ±2% tolerance for critical biasing |
| Power Dissipation | 250 mW on FR-4 board - supports continuous regulation in compact consumer and automotive modules |
| Zener Impedance | 20 Ω max at 5 mA - maintains stable output under varying load currents without significant voltage droop |
| Reverse Leakage | 0.2 μA max at 7.6 V - minimizes quiescent current in battery-powered sensing nodes |
| Temperature Coefficient | +4.5 mV/°C - enables predictable drift compensation in temperature-sensitive analog front-ends |
| Capacitance | 130 pF at 0 V, 1 MHz - limits high-frequency noise coupling in signal conditioning paths |
| ESD Rating | Class 3 (>16 kV HBM) - withstands handling and system-level electrostatic discharge events |
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, UL 94 V-0 flammability rating, cathode indicated by polarity band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Connected to lower-potential side of regulated circuit; reverse-biased during Zener operation |
| 2 | No Connection | Internally unconnected; must remain floating-no PCB trace or pad required |
| 3 | Cathode | Connected to higher-potential side; carries full Zener current and defines regulated output node |
Key Features
| Feature | Design Value |
|---|---|
| Tight 2% Zener voltage tolerance | Reduces calibration overhead in precision ADC references and sensor excitation circuits |
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics requiring zero-defect reliability |
| Pb-free and RoHS compliant | Enables compliance with global environmental regulations without solderability compromise |
| 250 mW FR-4 power rating | Supports direct integration into dense portable PCBs without heatsinking |
| 16 kV HBM ESD protection | Eliminates need for external transient suppressors in handheld and IoT edge devices |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating 10 V reference for microcontroller ADC inputs in door module ECUs. IC Role / Device Role / Timing Role: Two-terminal Zener voltage reference providing stable bias for analog-to-digital conversion. Use Value: ±2% tolerance and +4.5 mV/°C TC ensure <±1.5% total error over −40°C to +125°C operating range. | Use Scenario: Establishing accurate excitation voltage for bridge-based pressure transducers. IC Role / Device Role / Timing Role: Precision shunt regulator maintaining constant 10 V across Wheatstone bridge legs. Use Value: 20 Ω Zener impedance prevents loading-induced gain error during dynamic sensor response. |
| Portable Medical Pulse Oximeter | 5G Small Cell RF Front-End Biasing |
Use Scenario: Supplying stable 10 V reference to photodiode TIA amplifiers in battery-powered oximeters. IC Role / Device Role / Timing Role: Low-leakage (0.2 μA) shunt regulator minimizing standby current drain. Use Value: Enables >72-hour battery life while maintaining <0.5% reference drift across clinical temperature range. | Use Scenario: Providing clean 10 V bias to GaN PA driver stages in outdoor small cell radios. IC Role / Device Role / Timing Role: Noise-suppressing Zener clamp protecting gate drivers from supply transients. Use Value: 130 pF capacitance and 16 kV ESD rating prevent RF interference and EOS damage during field deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84B10LT1G | Same electrical specs but non-automotive grade; lacks AEC-Q101 qualification and PPAP capability | Suitable for commercial-grade consumer electronics only | Select when automotive qualification is not required and cost sensitivity is high |
| SZBZX84C10LT1G | Looser ±5% tolerance (9.4–10.6 V); identical package, power, and thermal specs | Acceptable where reference accuracy <±5% is sufficient | Choose for non-critical biasing in cost-driven industrial controls |
Compared with BZX84B10LT1G, SZBZX84B10LT1G adds AEC-Q101 validation and PPAP support for automotive programs; versus SZBZX84C10LT1G, it trades ±2% tolerance for tighter regulation at same price point-critical for ADC references and sensor excitation.
Availability
SZBZX84B10LT1G is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and portable medical devices requiring stable component supply with long-term lifecycle assurance.
Supply support for SZBZX84B10LT1G 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 delivering energy-efficient silicon solutions for automotive, industrial, cloud, and IoT applications.
SZBZX84B10LT1G belongs to the SZBZX84BxxxLT1G series of AEC-Q101-qualified Zener diodes designed specifically for automotive and high-reliability industrial voltage regulation tasks.
FAQ
What is the Zener voltage tolerance of SZBZX84B10LT1G?
SZBZX84B10LT1G has a tight ±2% Zener voltage tolerance, specified as 9.8 V to 10.2 V at 5 mA test current. This precision enables reliable performance in applications demanding stable reference voltages, such as automotive sensor interfaces and high-resolution data acquisition systems where wider tolerances would introduce unacceptable measurement error.
Is SZBZX84B10LT1G qualified for automotive use?
Yes, SZBZX84B10LT1G is AEC-Q101 qualified and PPAP capable, meeting stringent automotive reliability requirements for body electronics, infotainment, and ADAS subsystems. The "SZ" prefix explicitly denotes automotive-grade manufacturing control and site-specific change management, distinguishing it from commercial-grade BZX84B10LT1G variants.
What is the maximum power dissipation of SZBZX84B10LT1G on FR-4 board?
SZBZX84B10LT1G is rated for 250 mW total power dissipation on FR-4 board at 25°C ambient, derating linearly by 2.0 mW/°C above that temperature. This rating supports continuous operation in compact PCB layouts typical of automotive modules and portable instrumentation without forced cooling or heatsinking.
What are the pin connections for SZBZX84B10LT1G in SOT-23 package?
SZBZX84B10LT1G uses SOT-23 pinout Style 8: Pin 1 is Anode, Pin 2 is No Connection (internally unconnected and must remain floating), and Pin 3 is Cathode. This configuration is confirmed in the onsemi datasheet's mechanical outline and electrical characteristics tables, ensuring correct orientation during automated placement.
Does SZBZX84B10LT1G have ESD protection?
Yes, SZBZX84B10LT1G features Class 3 Human Body Model ESD protection exceeding 16 kV, verified per JEDEC JS-001. This robustness eliminates the need for external ESD suppression components in handheld, medical, and automotive applications where handling and system-level transients pose reliability risks.
SZBZX84B10LT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- SZBZX84BxxxLT1G
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 10 V
- Tolerance:
- ±2%
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3 (TO-236)
SZBZX84B10LT1G FAQ
1.How can I place an order for SZBZX84B10LT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZBZX84B10LT1G 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 SZBZX84B10LT1G reliable?
The price and inventory of SZBZX84B10LT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZBZX84B10LT1G is usually 5 days.
3.What payment methods are accepted for SZBZX84B10LT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZBZX84B10LT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZBZX84B10LT1G?
SZBZX84B10LT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZBZX84B10LT1G 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 SZBZX84B10LT1G?
For technical support, including SZBZX84B10LT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZBZX84B10LT1G requirements.
6.How does Aetrix verify that SZBZX84B10LT1G is sourced from the original manufacturer or authorized distributors?
All SZBZX84B10LT1G 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 SZBZX84B10LT1G meets industry standards.
7.What is the process for return or replacement of SZBZX84B10LT1G?
All SZBZX84B10LT1G units undergo pre-shipment inspection (PSI). If there is an issue with SZBZX84B10LT1G, 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 SZBZX84B10LT1G part is unused and in its original packaging.
Return procedure for SZBZX84B10LT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZBZX84B10LT1G Tags
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