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onsemi BZX84C13LT3
- Part No.:
- BZX84C13LT3
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C13LT3.pdf
- Description:
- DIODE ZENER 13V 225MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:75,000
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Product details
Overview
BZX84C13LT3 from onsemi is a 13 V, ±5% tolerance Zener diode in SOT-23 package, rated for 225 mW power dissipation at 25°C on FR-5 board, with 30 Ω dynamic impedance at 5 mA test current and 0.1 µA reverse leakage at 10.4 V. It provides precision voltage regulation in space-constrained portable electronics.
For engineers reviewing the BZX84C13LT3 datasheet, pinout, applications, or equivalent options, key selection criteria include nominal Zener voltage (13 V), tolerance (±5%), Zener impedance (30 Ω @ 5 mA), thermal resistance (556 °C/W), and ESD rating (>16 kV HBM).
Technical Context
This device operates as a two-terminal voltage reference, conducting in reverse breakdown to clamp voltage across its terminals. Its Zener voltage is specified at three test currents (2 mA, 5 mA, and 20 mA), with temperature coefficient of +7.0 mV/°C and capacitance of 120 pF at 0 V bias and 1 MHz.
The SOT-23 package features a cathode band on terminal 3, anode on terminal 1, and terminal 2 internally unconnected. Maximum junction temperature is +150°C, with storage range from −65°C to +150°C and 260°C soldering tolerance for 10 seconds.
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 range under standard bias |
| Power Dissipation | 225 mW on FR-5 board at 25°C - sets maximum continuous power handling in typical PCB layout |
| Zener Impedance | 30 Ω at 5 mA - determines voltage regulation stability under varying load current |
| Reverse Leakage | 0.1 µA at 10.4 V - ensures low standby current in voltage-sense or bias networks |
| Temperature Coefficient | +7.0 mV/°C - quantifies voltage drift per degree Celsius rise in ambient or junction temperature |
| Capacitance | 120 pF at 0 V, 1 MHz - impacts high-frequency noise filtering and signal integrity in RF-adjacent circuits |
| ESD Rating | Class 3 (>16 kV) HBM - supports robust handling in manual assembly and field-replaceable modules |
Pinout & Package
SOT-23 surface-mount plastic package (Case 318, Style 8), void-free thermosetting material, UL 94 V-0 flammability rating, cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Forward conduction terminal; connects to lower-potential node in reverse-bias regulation configuration |
| 2 | No Connection | Internally isolated; must remain unconnected on PCB to avoid parasitic coupling or mechanical stress |
| 3 | Cathode | Reverse-bias terminal; connects to higher-potential node and carries regulated output current |
Key Features
| Feature | Design Value |
|---|---|
| Pb-Free Compliant Packaging | RoHS-compliant SOT-23 construction with corrosion-resistant, solderable finish |
| High-Density Mounting | Small footprint (2.80 × 1.20 × 0.99 mm) enables placement on compact PCBs with ≥0.5 mm trace spacing |
| Automated Assembly Optimized | Transfer-molded case geometry and standardized tape-and-reel (10,000 pcs/reel, 8 mm, 13″) support pick-and-place reliability |
| Stable Thermal Performance | 556 °C/W junction-to-ambient thermal resistance on FR-5 allows predictable derating above 25°C ambient |
| Low-Leakage Regulation | 0.1 µA max reverse leakage at VR = 10.4 V ensures minimal quiescent current in battery-powered voltage references |
Applications
| Cellular Phone Power Management | Handheld Portable Device Reference |
|---|---|
Use Scenario: Stabilizing bias voltage for RF front-end amplifiers and sensor interface ICs in LTE/5G handsets. IC Role / Device Role / Timing Role: Zener voltage reference providing stable 13 V rail for analog front-end calibration and LDO enable thresholds. Use Value: Tight 13 V ±5% tolerance and 30 Ω impedance ensure consistent amplifier gain setting and ADC reference accuracy across temperature. | Use Scenario: Generating precise threshold voltage for low-power microcontroller reset circuits in medical wearables. IC Role / Device Role / Timing Role: Two-terminal shunt regulator establishing reliable reset trigger point independent of supply ripple. Use Value: 0.1 µA leakage at 10.4 V minimizes battery drain during sleep mode while maintaining fast, repeatable reset activation. |
| High-Density PC Board Voltage Clamp | ESD-Sensitive Interface Protection |
Use Scenario: Clamping transient overvoltage on I²C bus lines in multi-layer server motherboard designs. IC Role / Device Role / Timing Role: Passive shunt clamp limiting line voltage to 13 V during ESD events or inductive switching spikes. Use Value: 120 pF capacitance avoids signal integrity degradation on 400 kHz I²C lines while delivering >16 kV HBM ESD immunity. | Use Scenario: Protecting USB data lines against contact discharge in industrial handheld scanners. IC Role / Device Role / Timing Role: Low-capacitance Zener clamping element integrated into TVS-assisted protection network. Use Value: Class 3 ESD rating and 120 pF capacitance allow direct placement adjacent to connector without bandwidth loss or false triggering. |
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 electrical specs; differs only in tape-and-reel packaging (3,000 pcs vs. 10,000 pcs) | Identical functional use; suited for lower-volume prototyping or small-batch production | Select BZX84C13LT1 when smaller reel size reduces inventory holding cost or matches existing feeder setup |
| MMSZ4687T1G | 13 V nominal, ±5%, but rated 350 mW on FR-4, 20 Ω Zz @ 5 mA, 100 pF capacitance | Higher power handling and lower impedance suit higher-current regulation; tighter capacitance benefits RF-adjacent use | Choose MMSZ4687T1G where >225 mW dissipation or sub-30 Ω impedance is required, accepting minor footprint variance |
Compared with BZX84C13LT3, BZX84C13LT1 offers identical regulation performance in a smaller reel format ideal for NPI, while MMSZ4687T1G delivers higher power margin and lower dynamic impedance at the cost of slightly different thermal and capacitive behavior.
Availability
BZX84C13LT3 is available at Aetrix Electronics and suitable for cellular phone power management, handheld portable device reference, and high-density PC board voltage clamp applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for BZX84C13LT3 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 focused on energy-efficient electronics, delivering silicon solutions for automotive, industrial, cloud, and IoT markets.
The BZX84C13LT3 belongs to the BZX84CxxxLT1 Zener regulator family, designed specifically for space-constrained, low-power voltage reference and clamping in portable and high-density electronic systems.
FAQ
What is the Zener voltage tolerance of the BZX84C13LT3?
The BZX84C13LT3 has a nominal Zener voltage of 13 V with a tolerance of ±5%, meaning its actual breakdown voltage falls between 12.4 V and 14.1 V when measured at 5 mA test current and 25°C ambient temperature. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the official onsemi datasheet for the BZX84CxxxLT1 series.
Does the BZX84C13LT3 have a connection on pin 2?
No, pin 2 of the BZX84C13LT3 is internally unconnected (NC). The device uses only pins 1 (anode) and 3 (cathode) for operation. This is explicitly stated in the Pinout section of the datasheet and reflected in the mechanical drawings on page 7, where pin 2 is labeled "NO CONNECTION".
What is the maximum power dissipation of the BZX84C13LT3 on FR-5 board?
The BZX84C13LT3 is rated for 225 mW total power dissipation on FR-5 board at 25°C ambient temperature. Above 25°C, it must be derated at 1.8 mW/°C, resulting in zero allowable dissipation at approximately 161°C ambient. This rating is defined in the Maximum Ratings table on page 1 of the onsemi datasheet.
Is the BZX84C13LT3 RoHS compliant?
Yes, the BZX84C13LT3 is RoHS compliant. While the base part number does not include the "G" suffix, onsemi confirms Pb-free availability for the entire BZX84CxxxLT1 series, and the device meets RoHS requirements per the manufacturer's packaging specifications and compliance documentation.
What is the Zener impedance of the BZX84C13LT3 at 5 mA?
The BZX84C13LT3 has a maximum Zener impedance (ZZT) of 30 Ω when tested at 5 mA Zener current and 25°C. This value is specified in the Electrical Characteristics table on page 3 of the datasheet and directly affects regulation accuracy under dynamic load conditions.
BZX84C13LT3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- BZX84CxxxLT1
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3 (TO-236)
BZX84C13LT3 FAQ
1.How can I place an order for BZX84C13LT3 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C13LT3 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 BZX84C13LT3 reliable?
The price and inventory of BZX84C13LT3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C13LT3 is usually 5 days.
3.What payment methods are accepted for BZX84C13LT3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C13LT3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C13LT3?
BZX84C13LT3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C13LT3 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 BZX84C13LT3?
For technical support, including BZX84C13LT3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C13LT3 requirements.
6.How does Aetrix verify that BZX84C13LT3 is sourced from the original manufacturer or authorized distributors?
All BZX84C13LT3 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 BZX84C13LT3 meets industry standards.
7.What is the process for return or replacement of BZX84C13LT3?
All BZX84C13LT3 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C13LT3, 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 BZX84C13LT3 part is unused and in its original packaging.
Return procedure for BZX84C13LT3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C13LT3 Tags
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MMBZ5240B-7-F
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
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BZT52C15-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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SMAZ12-13-F
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