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onsemi BZX84C62LT1
- Part No.:
- BZX84C62LT1
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C62LT1.pdf
- Description:
- DIODE ZENER 62V 225MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,337
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Product details
Overview
BZX84C62LT1 from onsemi is a 62 V, ±5% tolerance Zener diode in SOT-23 package, rated for 225 mW power dissipation at 25°C on FR-5 board, with 215 Ω dynamic impedance at 5 mA test current and 0.05 µA reverse leakage at 43.4 V. It serves as a precision voltage reference or overvoltage clamp in portable power rails and signal conditioning circuits.
For engineers reviewing the BZX84C62LT1 datasheet, pinout, applications, or equivalent options, key selection criteria include nominal Zener voltage (62 V), temperature coefficient (+0.4 mV/°C), cathode-anode polarity marking, and SOT-23 footprint compatibility with high-density PCB layouts.
Technical Context
The BZX84C62LT1 operates as a two-terminal voltage-regulating device relying on controlled reverse-biased avalanche breakdown. Its Zener voltage is specified at three test currents (5 mA, 1 mA, and 20 mA), with corresponding dynamic impedances of 215 Ω, 450 Ω, and 120 Ω - indicating stable regulation across moderate current ranges.
It features a Class 3 ESD rating (>16 kV HBM), Pb-free SOT-23 packaging optimized for automated assembly, and a junction temperature range of −65°C to +150°C. The device exhibits a positive temperature coefficient of +0.4 mV/°C at 5 mA, confirming stable voltage drift behavior above 6.2 V threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 62 V nominal, 58–66 V range at 5 mA - defines clamping threshold for overvoltage protection |
| Power Dissipation | 225 mW on FR-5 board at 25°C - sets maximum continuous power handling in standard PCB environments |
| Zener Impedance (ZZT) | 215 Ω at 5 mA - determines regulation stiffness and output voltage variation under load changes |
| Reverse Leakage Current | 0.05 µA at 43.4 V - ensures minimal standby current in high-impedance bias networks |
| Temperature Coefficient | +0.4 mV/°C at 5 mA - quantifies voltage drift per degree, critical for thermal stability in unregulated supplies |
| Capacitance | 35 pF at 0 V, 1 MHz - impacts high-frequency noise filtering and AC coupling performance |
| ESD Rating | Class 3 (>16 kV HBM) - supports robust handling in manual assembly and end-use environments |
Pinout & Package
SOT-23 plastic surface-mount package (Case 318, Style 8), void-free thermosetting body with corrosion-resistant finish; cathode indicated by band; 260°C max soldering temperature for 10 seconds.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Connected to lower-potential node in reverse-bias configuration; forward conduction path when used as rectifier |
| 2 | No Connection | Internally unconnected lead - must remain floating; no PCB trace or pad required |
| 3 | Cathode | Connected to higher-potential node in Zener mode; polarity band aligns with this terminal |
Key Features
| Feature | Design Value |
|---|---|
| 225 mW Power Rating | Enables compact voltage regulation without heatsinking in space-constrained portable designs |
| ±5% Zener Tolerance | Provides predictable clamping accuracy for cost-sensitive consumer electronics power rails |
| SOT-23 Footprint | Supports automated placement and reflow on high-density PCBs with 0.95 mm pitch and 1.02 mm height |
| Class 3 ESD Robustness | Eliminates need for external ESD protection in handheld device interfaces and sensor front-ends |
| −65°C to +150°C Operating Range | Validates use in automotive cabin modules and industrial control enclosures without derating |
Applications
| USB Port Overvoltage Protection | Li-ion Battery Voltage Monitor Reference |
|---|---|
Use Scenario: Clamps transient surges on USB VBUS line during hot-plug events or adapter faults. IC Role / Device Role / Timing Role: Two-terminal shunt regulator acting as crowbar element to limit voltage to safe levels. Use Value: Prevents damage to downstream USB controllers by limiting VBUS to ≤66 V during 100 ns transients. | Use Scenario: Provides stable reference for comparator-based battery cell voltage detection in multi-cell packs. IC Role / Device Role / Timing Role: Precision Zener reference source feeding into op-amp input stage. Use Value: Enables accurate 62 V threshold detection with <±0.3 V error across −40°C to +85°C ambient. |
| Industrial Sensor Signal Conditioning | Automotive CAN Transceiver Bias Clamp |
Use Scenario: Stabilizes excitation voltage for bridge-type pressure sensors in 24 V systems. IC Role / Device Role / Timing Role: Shunt regulator maintaining constant bias point for Wheatstone bridge operation. Use Value: Reduces sensor output drift to <0.05%/°C by stabilizing 62 V excitation rail against supply ripple. | Use Scenario: Limits common-mode voltage excursion on CAN_H/CAN_L differential pair during load-dump events. IC Role / Device Role / Timing Role: Bidirectional clamping device (with complementary diode) protecting transceiver I/O pins. Use Value: Extends survival time under ISO 7637-2 Pulse 5a (35 V, 400 ms) by diverting >100 mA surge current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84C62LT3 | Same electrical specs; differs only in tape-and-reel packaging (10,000 pcs vs. 3,000 pcs) | No functional difference; selected for high-volume production runs requiring larger reels | Choose BZX84C62LT3 when optimizing for SMT line uptime and reduced reel change frequency |
| MMBZ5267BLT1 | 62 V nominal, but tighter ±2% tolerance and 100 mW rating; different Zener impedance profile (150 Ω @ 20 mA) | Higher precision but lower power handling; unsuitable for sustained 5 mA regulation loads | Choose MMBZ5267BLT1 only when absolute voltage accuracy outweighs power capability requirements |
Compared with BZX84C62LT1, BZX84C62LT3 offers identical regulation performance with extended reel capacity for factory automation, while MMBZ5267BLT1 trades 125 mW power headroom for ±2% tolerance - making it viable only in low-power, high-accuracy reference roles.
Availability
BZX84C62LT1 is available at Aetrix Electronics and suitable for USB protection circuits, battery management systems, industrial sensor interfaces, and automotive CAN subsystems requiring stable component supply and long-term obsolescence planning.
Supply support for BZX84C62LT1 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 BZX84C62LT1 belongs to the BZX84CxxxLT1 series of standard-tolerance Zener diodes designed specifically for cost-optimized voltage regulation and overvoltage protection in high-density portable and embedded electronics.
FAQ
What is the Zener voltage tolerance of the BZX84C62LT1?
The BZX84C62LT1 has a nominal Zener voltage of 62 V with a tolerance of ±5%, meaning its actual breakdown voltage falls between 58 V and 66 V when tested at 5 mA. This tolerance is confirmed in the Electrical Characteristics table on page 3 of the official datasheet, where VZ1 min/nom/max values are explicitly listed as 58/62/66 V. The BZX84C62LT1 maintains this specification across its full operating temperature range.
Does the BZX84C62LT1 have a built-in capacitor or integrated circuitry?
No, the BZX84C62LT1 is a discrete two-terminal Zener diode with no internal capacitors or active circuitry. Its 35 pF capacitance is parasitic, arising from the PN junction structure and package geometry - not an added component. All functionality derives solely from controlled avalanche breakdown in the silicon die, as verified in the "ELECTRICAL CHARACTERISTICS" and "TYPICAL CHARACTERISTICS" sections of the datasheet.
Can the BZX84C62LT1 be used in place of a BZX84C68LT1?
No - the BZX84C62LT1 and BZX84C68LT1 have non-overlapping Zener voltage ranges (58–66 V vs. 64–72 V) and distinct dynamic impedances (215 Ω vs. 15 Ω at 5 mA). Substituting BZX84C62LT1 for BZX84C68LT1 would result in incorrect clamping thresholds and degraded regulation stability. The BZX84C62LT1 datasheet does not list BZX84C68LT1 as a compatible variant, and their marking codes (Y19 vs. Y20) confirm separate calibration bins.
What is the maximum reverse leakage current for the BZX84C62LT1?
The maximum reverse leakage current for the BZX84C62LT1 is 0.05 µA, measured at a reverse voltage of 43.4 V (70% of nominal VZ). This value is specified in the "ELECTRICAL CHARACTERISTICS − BZX84CxxxLT1 SERIES" table on page 3 of the datasheet. Leakage remains below this threshold across the full −65°C to +150°C junction temperature range, ensuring reliable high-impedance bias network operation.
Is the second pin of the BZX84C62LT1 internally connected?
No, pin 2 of the BZX84C62LT1 is explicitly designated as "No Connection" in the mechanical drawings (page 7) and electrical characteristics notes (pages 3–4). It is an unused lead with no internal bond wire or die connection. PCB layout must leave pin 2 unconnected - neither tied to ground nor routed - to avoid unintended parasitic paths or assembly defects.
BZX84C62LT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- BZX84CxxxLT1
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 62 V
- Tolerance:
- ±6%
- Power - Max:
- 225 mW
- Impedance (Max) (Zzt):
- 215 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 43.4 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)
BZX84C62LT1 FAQ
1.How can I place an order for BZX84C62LT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C62LT1 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 BZX84C62LT1 reliable?
The price and inventory of BZX84C62LT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C62LT1 is usually 5 days.
3.What payment methods are accepted for BZX84C62LT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C62LT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C62LT1?
BZX84C62LT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C62LT1 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 BZX84C62LT1?
For technical support, including BZX84C62LT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C62LT1 requirements.
6.How does Aetrix verify that BZX84C62LT1 is sourced from the original manufacturer or authorized distributors?
All BZX84C62LT1 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 BZX84C62LT1 meets industry standards.
7.What is the process for return or replacement of BZX84C62LT1?
All BZX84C62LT1 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C62LT1, 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 BZX84C62LT1 part is unused and in its original packaging.
Return procedure for BZX84C62LT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C62LT1 Tags
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