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onsemi SZBZX84C13LT3G
- Part No.:
- SZBZX84C13LT3G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
SZBZX84C13LT3G.pdf
- Description:
- DIODE ZENER 13V 250MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:20,000
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Product details
Overview
SZBZX84C13LT3G from onsemi is a 13 V ±8.5% Zener diode in SOT-23 package, rated for 250 mW power dissipation on FR-5 board at 25°C, with 30 Ω dynamic impedance at 5 mA test current and 0.1 μA reverse leakage at 10.4 V. It serves as a precision voltage reference or overvoltage clamp in low-power portable electronics.
For engineers reviewing the SZBZX84C13LT3G datasheet, pinout, applications, or equivalent options, key selection criteria include nominal Zener voltage tolerance (±8.5%), thermal coefficient (+7.0 mV/°C), ESD rating (>16 kV HBM), junction temperature range (−65°C to +150°C), and SOT-23 footprint compatibility with high-density PCB layouts.
Technical Context
This device operates as a two-terminal voltage-regulating diode with cathode-anode polarity, requiring no external biasing circuitry. Its Zener breakdown mechanism delivers stable reverse conduction above 12.4 V (min) and below 14.1 V (max) at 5 mA, with dynamic impedance tightly controlled at ≤30 Ω under specified test conditions.
The SOT-23 package supports automated surface-mount assembly and provides Class 3 ESD immunity (>16 kV per Human Body Model). Thermal resistance is 500 °C/W (junction-to-ambient on FR-5), enabling reliable operation up to 150°C junction temperature without derating below 25°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.4 V (min) to 14.1 V (max) at IZT = 5 mA - defines regulation band for stable reference generation |
| Power Dissipation | 250 mW on FR-5 board at 25°C - sets maximum continuous DC power handling in standard PCB layout |
| Zener Impedance (ZZT) | ≤30 Ω at IZT = 5 mA - determines output voltage stability under varying load current |
| Reverse Leakage Current | ≤0.1 μA at VR = 10.4 V - ensures minimal quiescent current in standby or sensing circuits |
| Temperature Coefficient | +7.0 mV/°C at IZT = 5 mA - quantifies voltage drift across operating temperature range |
| Capacitance | 120 pF at VR = 0 V, f = 1 MHz - impacts high-frequency noise filtering and transient response |
| ESD Rating | Class 3 (>16 kV) per Human Body Model - enables robust handling in manual assembly and field environments |
Pinout & Package
SZBZX84C13LT3G uses the SOT-23 (TO-236) plastic surface-mount package (Case 318, Style 8), measuring 2.90 mm × 1.30 mm × 1.00 mm with 1.90 mm lead pitch. Cathode is marked by a polarity band on the package body.
| 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 terminal; must remain floating - no PCB trace or pad required |
| 3 | Cathode | Connected to higher-potential node in reverse-bias configuration; defines regulated output reference point |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock |
| Pb-free and RoHS compliant | Meets EU Directive 2011/65/EU and JEDEC J-STD-020 reflow profile requirements |
| Tight thermal coefficient control | +7.0 mV/°C enables predictable voltage drift in industrial temperature ranges (−40°C to +125°C) |
| Optimized for high-density PCBs | SOT-23 footprint occupies <1.5 mm² area, supporting >1000 components per square inch in portable designs |
| High ESD immunity | Withstands >16 kV HBM pulses without parameter shift - eliminates need for external TVS in many consumer interfaces |
Applications
| Smartphone Power Management | Automotive Cabin Control Module |
|---|---|
|
Use Scenario: Voltage clamping on USB interface lines to protect PMIC inputs from ESD and load dump transients. IC Role / Device Role / Timing Role: Two-terminal shunt regulator providing fast-response overvoltage protection without active control logic. Use Value: Limits peak voltage to ≤14.1 V while drawing <0.1 μA leakage at 10.4 V - preserves battery life and avoids false resets. |
Use Scenario: Reference voltage source for microcontroller ADC channel monitoring of 12 V battery rail. IC Role / Device Role / Timing Role: Precision Zener element delivering stable 13 V reference for analog-to-digital conversion accuracy. Use Value: Maintains ±8.5% tolerance across −40°C to +125°C, enabling <1% measurement error in battery state-of-charge estimation. |
| Industrial Sensor Transmitter | Medical Wearable Battery Monitor |
|
Use Scenario: Overvoltage protection for 4–20 mA loop-powered sensor front-end against supply surges. IC Role / Device Role / Timing Role: Passive clamp regulating loop voltage to prevent damage to op-amp input stages. Use Value: Activates at 12.4 V (min), limiting fault energy before downstream ICs exceed absolute maximum ratings. |
Use Scenario: Low-current voltage reference for lithium-ion cell voltage monitoring in compact hearables. IC Role / Device Role / Timing Role: Stable Zener node supplying reference to comparator-based charge termination circuit. Use Value: Draws only 5 mA test current and exhibits 120 pF capacitance - minimizes loading on ultra-low-power LDO outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84C13LT1G | Same electrical specs but supplied in 3,000-piece tape-and-reel vs. 10,000-piece for SZBZX84C13LT3G; non-automotive grade marking | Lacks SZ-prefix AEC-Q101 qualification and PPAP capability - unsuitable for automotive production programs | Select when cost sensitivity outweighs automotive compliance requirements and volume demand is <3k units/batch |
| SZBZX84C12LT3G | 12 V nominal Zener voltage (11.4–12.7 V range), +6.0 mV/°C tempco, 25 Ω ZZT - lower voltage and tighter impedance than SZBZX84C13LT3G | Better suited for 12 V system rails where tighter regulation margin is needed; not interchangeable without circuit recalibration | Choose for legacy 12 V reference designs requiring improved thermal stability and reduced dynamic impedance |
Compared with BZX84C13LT1G, SZBZX84C13LT3G adds automotive qualification and larger reel packaging, while SZBZX84C12LT3G offers a lower-voltage alternative with superior impedance and temperature coefficient - neither is pin-compatible drop-in replacement without validation of voltage margin and thermal drift in target application.
Availability
SZBZX84C13LT3G is available at Aetrix Electronics and suitable for smartphone power management, automotive cabin control modules, and industrial sensor transmitters requiring stable component supply with AEC-Q101 assurance and high-volume tape-and-reel logistics.
Supply support for SZBZX84C13LT3G 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 (Semiconductor Components Industries, LLC) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensors, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
SZBZX84C13LT3G belongs to the SZBZX84CxxxLTxG automotive-qualified Zener diode family, engineered for voltage regulation and overvoltage protection in space-constrained, high-reliability electronic systems.
FAQ
What is the Zener voltage tolerance of SZBZX84C13LT3G?
The SZBZX84C13LT3G has a nominal Zener voltage of 13 V with a tolerance of ±8.5%, meaning the actual breakdown voltage falls between 12.4 V (minimum) and 14.1 V (maximum) when tested at 5 mA. This tolerance is defined per the BZX84C series standard and confirmed in the onsemi datasheet Table 3 under "ELECTRICAL CHARACTERISTICS − BZX84CxxxLT1 SERIES".
Is SZBZX84C13LT3G suitable for automotive applications?
Yes, SZBZX84C13LT3G is AEC-Q101 qualified and PPAP capable, as explicitly stated in the onsemi datasheet under "Features". The "SZ" prefix denotes automotive and other applications requiring unique site and control change requirements - making SZBZX84C13LT3G appropriate for use in cabin control modules, body electronics, and other automotive subsystems.
What is the pin configuration of SZBZX84C13LT3G?
SZBZX84C13LT3G uses the SOT-23 package with Style 8 pinout: Pin 1 is Anode, Pin 2 is No Connection (internally unconnected), and Pin 3 is Cathode. This configuration is documented in the "MECHANICAL CASE OUTLINE" section and confirmed in the Electrical Characteristics table footnote stating "(Pinout: 1-Anode, 2-No Connection, 3-Cathode)".
What is the maximum power dissipation for SZBZX84C13LT3G?
The maximum power dissipation for SZBZX84C13LT3G is 250 mW on FR-5 board at 25°C ambient temperature, with a derating factor of 2.0 mW/°C above 25°C. This value is specified in the "MAXIMUM RATINGS" table on page 2 of the onsemi datasheet and applies directly to the SZBZX84CxxxLTxG series.
Does SZBZX84C13LT3G have ESD protection built-in?
Yes, SZBZX84C13LT3G features an ESD rating of Class 3 (>16 kV) per Human Body Model, as stated in the "Features" section of the onsemi datasheet. This level of ESD immunity is inherent to the device structure and does not require external components - enabling direct integration into handheld and portable electronics interfaces.
SZBZX84C13LT3G 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):
- 13 V
- Tolerance:
- ±6%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 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)
SZBZX84C13LT3G FAQ
1.How can I place an order for SZBZX84C13LT3G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZBZX84C13LT3G 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 SZBZX84C13LT3G reliable?
The price and inventory of SZBZX84C13LT3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZBZX84C13LT3G is usually 5 days.
3.What payment methods are accepted for SZBZX84C13LT3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZBZX84C13LT3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZBZX84C13LT3G?
SZBZX84C13LT3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZBZX84C13LT3G 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 SZBZX84C13LT3G?
For technical support, including SZBZX84C13LT3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZBZX84C13LT3G requirements.
6.How does Aetrix verify that SZBZX84C13LT3G is sourced from the original manufacturer or authorized distributors?
All SZBZX84C13LT3G 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 SZBZX84C13LT3G meets industry standards.
7.What is the process for return or replacement of SZBZX84C13LT3G?
All SZBZX84C13LT3G units undergo pre-shipment inspection (PSI). If there is an issue with SZBZX84C13LT3G, 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 SZBZX84C13LT3G part is unused and in its original packaging.
Return procedure for SZBZX84C13LT3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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