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onsemi SZBZX84C2V7LT1G
- Part No.:
- SZBZX84C2V7LT1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
SZBZX84C2V7LT1G.pdf
- Description:
- DIODE ZENER 2.7V 250MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:19,152
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Product details
Overview
SZBZX84C2V7LT1G from onsemi is a 2.7 V ±0.2 V Zener diode in SOT-23 package, rated for 250 mW power dissipation on FR-5 board at 25°C, with 100 Ω dynamic impedance at 5 mA test current and −3.5 mV/°C temperature coefficient - used for low-voltage reference and overvoltage protection in portable power rails.
For engineers reviewing the SZBZX84C2V7LT1G datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±7.4%), thermal coefficient, leakage current (≤20 μA @ 1 V), and SOT-23 footprint compatibility with high-density PCB layouts.
Technical Context
This device operates as a two-terminal voltage reference diode with cathode-anode polarity, designed for reverse-bias regulation. Its Zener breakdown is specified at three test currents (1 mA, 5 mA, 20 mA), enabling stable clamping across varying load conditions.
The SOT-23 package supports automated placement and reflow soldering per JEDEC J-STD-020, with maximum soldering temperature of 260°C for 10 seconds. ESD rating exceeds 16 kV (HBM Class 3), suitable for handheld and battery-powered systems requiring robust electrostatic immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 2.7 V nominal, min 2.5 V / max 2.9 V @ 5 mA - defines precise clamping threshold for 2.8 V–3.3 V logic supply monitoring |
| Power Dissipation | 250 mW @ 25°C on FR-5 board - sets maximum continuous regulation power without heatsinking |
| Zener Impedance | 100 Ω @ 5 mA - determines output voltage deviation under dynamic load changes |
| Reverse Leakage | ≤20 μA @ 1 V - ensures minimal quiescent current in standby mode |
| Temp Coefficient | −3.5 mV/°C @ 5 mA - quantifies voltage drift over industrial temperature range (−65°C to +150°C) |
| Capacitance | 450 pF @ 0 V, 1 MHz - impacts high-frequency noise filtering capability in bypass applications |
| ESD Rating | Class 3 (>16 kV HBM) - enables direct integration into unshielded user-interface circuits |
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 indicated by band on terminal 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Connected to lower-potential node during regulation; must be held ≤ (VZ − VR) to avoid forward conduction |
| 2 | No Connection | Internally isolated; no electrical function - must remain unconnected on PCB |
| 3 | Cathode | Connected to regulated voltage rail; polarity band identifies this terminal for correct orientation |
Key Features
| Feature | Design Value |
|---|---|
| Pb-Free & RoHS Compliant | Meets EU Directive 2011/65/EU and automotive AEC-Q101 requirements for lead-free assembly |
| Automated Assembly Optimized | Standard SOT-23 footprint and marking support high-speed pick-and-place and AOI inspection |
| Tight Thermal Stability | −3.5 mV/°C TC enables <±25 mV total drift from −40°C to +85°C in precision bias networks |
| Low-Leakage Regulation | 20 μA max IR @ 1 V allows use in microamp-level sleep-mode circuits without compromising battery life |
| High-Density Packaging | 2.9 mm × 1.3 mm footprint saves >60% board area vs. DO-35 axial leads in space-constrained wearables |
Applications
| Battery Voltage Monitor | USB Port Overvoltage Clamp |
|---|---|
Use Scenario: Monitoring single-cell Li-ion battery voltage during charging cycles in Bluetooth earbuds. IC Role / Device Role / Timing Role: Zener reference element in comparator-based cutoff circuit detecting >3.0 V threshold. Use Value: 2.7 V nominal voltage with ±0.2 V tolerance ensures accurate 3.0 V trigger point using resistor divider scaling. | Use Scenario: Protecting USB 2.0 data lines and VBUS from transient surges in portable docking stations. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp absorbing ESD events before reaching PHY IC. Use Value: 450 pF capacitance at 0 V avoids signal integrity degradation on 480 Mbps differential pairs. |
| Low-Power Sensor Bias | Industrial PLC Input Protection |
Use Scenario: Providing stable 2.7 V bias to MEMS accelerometer analog front-end in wireless condition-monitoring nodes. IC Role / Device Role / Timing Role: Precision voltage reference for ADC reference buffer and sensor excitation circuit. Use Value: −3.5 mV/°C tempco limits reference error to <±0.1% over −25°C to +70°C operating range. | Use Scenario: Safeguarding 24 V DC digital input channels against field-wiring transients in factory automation controllers. IC Role / Device Role / Timing Role: Secondary clamping stage after TVS, limiting residual voltage to protect optocoupler LED anode. Use Value: 250 mW power rating sustains 100 ms surge events up to 1.5 A without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84C2V7LT1G | Same Zener voltage, same SOT-23 package, but standard onsemi prefix (non-automotive grade) | Lacks AEC-Q101 qualification and PPAP documentation; not approved for automotive ECUs | Select when cost sensitivity outweighs automotive compliance requirements |
| SZBZX84C3V0LT1G | Higher nominal Zener voltage (3.0 V), identical package and thermal specs | Used where 3.0 V reference aligns with system LDO output or MCU VREF setting | Choose for designs requiring tighter margin above 2.8 V logic supply rails |
Compared with BZX84C2V7LT1G, SZBZX84C2V7LT1G adds AEC-Q101 qualification and PPAP support for automotive Tier-1 programs, while SZBZX84C3V0LT1G shifts regulation threshold upward for 3.0 V system compatibility - both retain identical SOT-23 layout and thermal behavior.
Availability
SZBZX84C2V7LT1G is available at Aetrix Electronics and suitable for battery management systems, USB interface protection, and industrial sensor biasing requiring stable component supply across extended temperature ranges and automotive-grade traceability.
Supply support for SZBZX84C2V7LT1G 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, medical, and IoT applications.
SZBZX84C2V7LT1G belongs to the SZBZX84CxxxLT1G automotive-qualified Zener series, engineered for reliable voltage reference and transient suppression in safety-critical vehicle subsystems and harsh-environment controls.
FAQ
What is the Zener voltage tolerance of SZBZX84C2V7LT1G at 5 mA test current?
SZBZX84C2V7LT1G has a Zener voltage range of 2.5 V to 2.9 V at 5 mA, corresponding to ±7.4% tolerance around the 2.7 V nominal value. This tolerance is verified per onsemi's BZX84CxxxLT1G series datasheet Rev. 23, page 3, and applies strictly under TA = 25°C with pulse testing conditions.
Can SZBZX84C2V7LT1G be used in place of BZX84C2V7LT1G on the same PCB layout?
Yes, SZBZX84C2V7LT1G shares identical SOT-23 mechanical dimensions, pinout (anode-pin1, no-connect-pin2, cathode-pin3), and electrical specifications with BZX84C2V7LT1G. The only functional distinction is SZBZX84C2V7LT1G's AEC-Q101 qualification and PPAP capability - no PCB or schematic changes are required for drop-in replacement in automotive designs.
What is the maximum reverse leakage current for SZBZX84C2V7LT1G at 1 V applied voltage?
The maximum reverse leakage current for SZBZX84C2V7LT1G is 20 μA at VR = 1 V and TA = 25°C, as specified in the Electrical Characteristics table on page 3 of the onsemi datasheet. This value ensures minimal standby power draw in always-on sensor biasing applications.
Is SZBZX84C2V7LT1G compatible with lead-free reflow soldering processes?
Yes, SZBZX84C2V7LT1G is Pb-free and RoHS compliant, qualified for lead-free reflow per JEDEC J-STD-020. Its maximum soldering temperature is 260°C for 10 seconds, matching standard SAC305 profile peak requirements without degradation to Zener characteristics or package integrity.
Does SZBZX84C2V7LT1G have a defined forward voltage specification?
Yes, SZBZX84C2V7LT1G specifies a maximum forward voltage of 0.90 V at IF = 10 mA, per the Electrical Characteristics table. This parameter validates its usability as a low-drop rectifier or polarity protection diode in auxiliary power paths where bidirectional conduction must be avoided.
SZBZX84C2V7LT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- SZBZX84CxxxLT1G
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2.7 V
- Tolerance:
- ±7%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 20 µA @ 1 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)
SZBZX84C2V7LT1G FAQ
1.How can I place an order for SZBZX84C2V7LT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZBZX84C2V7LT1G 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 SZBZX84C2V7LT1G reliable?
The price and inventory of SZBZX84C2V7LT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZBZX84C2V7LT1G is usually 5 days.
3.What payment methods are accepted for SZBZX84C2V7LT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZBZX84C2V7LT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZBZX84C2V7LT1G?
SZBZX84C2V7LT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZBZX84C2V7LT1G 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 SZBZX84C2V7LT1G?
For technical support, including SZBZX84C2V7LT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZBZX84C2V7LT1G requirements.
6.How does Aetrix verify that SZBZX84C2V7LT1G is sourced from the original manufacturer or authorized distributors?
All SZBZX84C2V7LT1G 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 SZBZX84C2V7LT1G meets industry standards.
7.What is the process for return or replacement of SZBZX84C2V7LT1G?
All SZBZX84C2V7LT1G units undergo pre-shipment inspection (PSI). If there is an issue with SZBZX84C2V7LT1G, 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 SZBZX84C2V7LT1G part is unused and in its original packaging.
Return procedure for SZBZX84C2V7LT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZBZX84C2V7LT1G Tags
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