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onsemi SZBZX84C13LT1
- Part No.:
- SZBZX84C13LT1
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
SZBZX84C13LT1.pdf
- Description:
- DIODE ZENER 13V 225MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
SZBZX84C13LT1 from onsemi is a 13 V, ±5% tolerance Zener diode in SOT-23 package, rated for 225 mW power dissipation at 25°C, with 30 Ω dynamic impedance at 5 mA test current and 0.1 μA reverse leakage at 10.4 V, used for precision voltage regulation in portable power rails and reference circuits.
For engineers reviewing the SZBZX84C13LT1 datasheet, pinout, applications, or equivalent options, key selection criteria include nominal Zener voltage (13 V), tolerance (±5%), thermal resistance (556 °C/W), ESD rating (>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 terminals. Its Zener voltage is specified at three test currents (1 mA, 5 mA, 20 mA), with temperature coefficient of +7.0 mV/°C at 5 mA - indicating positive drift above 6 V nominal range.
The SOT-23 package features cathode-indicated polarity band, void-free thermosetting plastic case, UL 94 V-0 flammability rating, and maximum soldering temperature of 260°C for 10 seconds. Pin 2 is internally unconnected - not a functional terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 13 V nominal, 12.4–14.1 V min–max at 5 mA - defines regulated output voltage window under standard bias |
| Power Dissipation | 225 mW on FR-5 board at 25°C - sets maximum continuous DC power before thermal derating begins |
| Zener Impedance | 30 Ω max at 5 mA - determines AC regulation stiffness and ripple rejection capability |
| Reverse Leakage | 0.1 μA max at 10.4 V - ensures minimal quiescent current in standby or low-power reference circuits |
| Temp Coefficient | +7.0 mV/°C at 5 mA - quantifies voltage drift per degree Celsius rise, critical for temperature-stable references |
| Capacitance | 120 pF max at 0 V, 1 MHz - impacts high-frequency noise coupling and bypass effectiveness |
| ESD Rating | Class 3 (>16 kV) per HBM - supports robust handling in automated assembly and end-use environments |
Pinout & Package
SOT-23 (Case 318-08) surface-mount plastic package with 3 leads; 2.90 mm length × 1.30 mm width × 0.95 mm height; cathode identified by band on lead 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Forward-biased input terminal; connects to lower-potential node in reverse-regulation configuration |
| 2 | No Connection | Internally unconnected; no electrical function - must remain floating or grounded per layout best practice |
| 3 | Cathode | Reverse-biased output terminal; ties to regulated voltage node and provides Zener breakdown path |
Key Features
| Feature | Design Value |
|---|---|
| 225 mW FR-5 Power Rating | Enables compact voltage clamping without heatsinking in space-constrained portable designs |
| ESD Robustness >16 kV HBM | Eliminates need for external ESD protection in handheld and automotive interface circuits |
| AEC-Q101 Qualified | Validates reliability for automotive body electronics, infotainment power supplies, and ADAS subsystems |
| Pb-Free (G-suffix compatible) | Meets RoHS and ELV compliance requirements without sacrificing thermal or electrical performance |
Applications
| Portable Power Rail Clamping | Microcontroller Reference Voltage |
|---|---|
Use Scenario: Protecting 12 V supply rail in Bluetooth headset against transient overvoltage during battery charging or hot-plug events. IC Role / Device Role / Timing Role: Zener voltage clamp limiting rail excursion to ≤14.1 V, preventing damage to downstream LDOs and RF ICs. Use Value: Leverages 13 V nominal breakdown and 30 Ω impedance to absorb 100–200 mA surge pulses without voltage overshoot exceeding 15 V. | Use Scenario: Providing stable 13 V reference for ADC voltage divider in industrial sensor node powered by Li-ion battery. IC Role / Device Role / Timing Role: Precision shunt reference establishing known voltage ratio for analog-to-digital conversion accuracy. Use Value: Achieves ±5% initial tolerance and +7.0 mV/°C TC to maintain <1% full-scale error across −40°C to +85°C operating range. |
| Automotive CAN Transceiver Bias | USB-C Port Overvoltage Protection |
Use Scenario: Biasing termination resistors in 12 V CAN FD physical layer interface within automotive gateway module. IC Role / Device Role / Timing Role: Stable voltage source ensuring consistent common-mode level and differential swing for CAN signal integrity. Use Value: Uses AEC-Q101 qualification and 150°C junction rating to sustain operation in engine bay ambient conditions up to 125°C. | Use Scenario: Clamping VBUS line during USB-C negotiation phase where legacy chargers may apply non-standard voltages. IC Role / Device Role / Timing Role: Fast-acting overvoltage limiter protecting Type-C controller and PD sink circuitry from 20 V transients. Use Value: Delivers 0.1 μA leakage at 10.4 V to minimize standby drain while responding within nanoseconds to 13.5 V+ excursions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84C13LT1 | Same 13 V, ±5%, SOT-23, but lacks AEC-Q101 qualification and automotive-grade traceability | Not approved for automotive production; suitable only for commercial-grade consumer or industrial prototypes | Select when cost sensitivity outweighs automotive compliance requirements and lifecycle traceability is not mandated |
| SZBZX84C13LT1G | Identical electrical specs and AEC-Q101 rating; Pb-free (RoHS-compliant) variant with G-suffix marking | Required for new designs targeting EU/China RoHS, WEEE, or automotive PPAP submission with lead-free process control | Choose for production releases requiring Pb-free compliance and full automotive qualification documentation |
Compared with BZX84C13LT1 and SZBZX84C13LT1G, the SZBZX84C13LT1 offers identical Zener performance and AEC-Q101 qualification but uses traditional SnPb termination - making it suitable for legacy manufacturing lines or mixed-technology assemblies where Pb-free reflow is not enforced.
Availability
SZBZX84C13LT1 is available at Aetrix Electronics and suitable for automotive body control modules, portable medical monitors, and industrial sensor interfaces requiring stable component supply, long-term lifecycle support, and AEC-Q101 validated reliability.
Supply support for SZBZX84C13LT1 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 delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The SZBZX84CxxxLT1G series targets automotive and high-reliability applications, with design focus on AEC-Q101 qualification, extended temperature operation (−65°C to +150°C), and robust ESD immunity for harsh environment deployment.
FAQ
What is the Zener voltage tolerance of SZBZX84C13LT1?
The SZBZX84C13LT1 has a nominal Zener voltage of 13 V with a tolerance of ±5%, meaning the actual breakdown voltage falls between 12.4 V and 14.1 V when tested at 5 mA. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the official datasheet and applies specifically to the SZBZX84C13LT1 variant within the BZX84CxxxLT1 family.
Is pin 2 of SZBZX84C13LT1 electrically connected?
No, pin 2 of the SZBZX84C13LT1 is internally unconnected - it serves no electrical function and must remain floating in the circuit. The device operates as a two-terminal Zener diode with pin 1 as anode and pin 3 as cathode, as explicitly stated in the "Pinout" notes on pages 2 and 3 of the datasheet.
What is the maximum junction temperature for SZBZX84C13LT1?
The maximum junction and storage temperature range for SZBZX84C13LT1 is −65°C to +150°C, as specified in the Maximum Ratings table on page 2 of the datasheet. This rating enables reliable operation in under-hood automotive environments and industrial equipment with elevated ambient temperatures.
Does SZBZX84C13LT1 meet automotive qualification standards?
Yes, SZBZX84C13LT1 is AEC-Q101 qualified and PPAP capable, as stated in the Features section on page 1 of the datasheet. This qualification confirms its suitability for automotive applications including body electronics, infotainment systems, and ADAS power management circuits.
How does the temperature coefficient affect SZBZX84C13LT1 performance?
The SZBZX84C13LT1 has a temperature coefficient of +7.0 mV/°C at 5 mA, meaning its Zener voltage increases by approximately 7 mV per degree Celsius rise in junction temperature. This positive drift is typical for Zeners above 6 V and must be accounted for in precision reference designs operating across wide temperature ranges.
SZBZX84C13LT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 13 V
- Tolerance:
- ±6%
- Power - Max:
- 225 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)
SZBZX84C13LT1 FAQ
1.How can I place an order for SZBZX84C13LT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SZBZX84C13LT1 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 SZBZX84C13LT1 reliable?
The price and inventory of SZBZX84C13LT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZBZX84C13LT1 is usually 5 days.
3.What payment methods are accepted for SZBZX84C13LT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZBZX84C13LT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZBZX84C13LT1?
SZBZX84C13LT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZBZX84C13LT1 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 SZBZX84C13LT1?
For technical support, including SZBZX84C13LT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZBZX84C13LT1 requirements.
6.How does Aetrix verify that SZBZX84C13LT1 is sourced from the original manufacturer or authorized distributors?
All SZBZX84C13LT1 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 SZBZX84C13LT1 meets industry standards.
7.What is the process for return or replacement of SZBZX84C13LT1?
All SZBZX84C13LT1 units undergo pre-shipment inspection (PSI). If there is an issue with SZBZX84C13LT1, 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 SZBZX84C13LT1 part is unused and in its original packaging.
Return procedure for SZBZX84C13LT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZBZX84C13LT1 Tags
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