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onsemi SZBZX84C62ET1G
- Part No.:
- SZBZX84C62ET1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
SZBZX84C62ET1G.pdf
- Description:
- DIODE ZENER 62V 225MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:9,000
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Product details
Overview
SZBZX84C62ET1G from onsemi is a 62 V ±5% Zener diode in SOT-23 package, rated for 250 mW power dissipation on FR-5 board, with 215 Ω dynamic impedance at 5 mA test current and 0.05 µA reverse leakage at 49.6 V, used for precision voltage regulation in portable power rails and reference circuits.
For engineers reviewing the SZBZX84C62ET1G datasheet, pinout, applications, or equivalent options, key selection criteria include nominal Zener voltage tolerance (±5%), temperature coefficient (+43.4 mV/°C), low capacitance (35 pF @ 0 V), AEC-Q101 qualification, and Pb-free SOT-23 packaging for high-density PCBs.
Technical Context
This device operates as a two-terminal voltage reference diode with cathode-anode polarity, designed for stable reverse-biased breakdown at 62 V nominal. Its thermal resistance is 500 °C/W on FR-5 board and 417 °C/W on alumina substrate, supporting operation from −65 °C to +150 °C junction temperature.
The Zener exhibits a positive temperature coefficient of +43.4 mV/°C at 5 mA, indicating voltage increases with temperature - critical for biasing stability in automotive and industrial environments. It delivers 225 W peak pulse power (8 × 20 µs) and meets Class 3 ESD rating (>16 kV HBM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 58–66 V @ 5 mA - defines regulated output range under standard test conditions |
| Power Dissipation | 250 mW on FR-5 board - sets maximum continuous DC power handling at 25 °C ambient |
| Zener Impedance | 215 Ω @ 5 mA - determines AC regulation stiffness and load transient response |
| Reverse Leakage | 0.05 µA @ 49.6 V - ensures minimal quiescent current in standby voltage reference applications |
| Capacitance | 35 pF @ 0 V, 1 MHz - impacts high-frequency noise filtering and signal integrity in RF-adjacent circuits |
| Temp. Coefficient | +43.4 mV/°C @ 5 mA - quantifies voltage drift over temperature; requires compensation in precision references |
| ESD Rating | Class 3 (>16 kV HBM) - enables robust handling in automated assembly and end-use environments |
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, UL 94 V-0 flammability rating, and cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side in reverse-bias regulation; defines polarity orientation on PCB |
| 2 - No Connection | Internal isolation | Electrically unconnected; must remain floating - no trace or pad tie required |
| 3 - Cathode | Zener breakdown terminal / voltage reference output | Connected to regulated rail; carries full Zener current and defines reference potential |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock |
| Pb-free & RoHS compliant | Meets global environmental compliance requirements without lead-based solder compatibility compromises |
| Optimized for automated assembly | Standard SOT-23 footprint and marking enable high-yield pick-and-place and reflow processing |
| High ESD immunity | Class 3 HBM (>16 kV) eliminates need for external ESD protection in most portable designs |
| Low capacitance | 35 pF enables use in RF-coupled supply rails without degrading signal integrity |
Applications
| Portable Power Supervision | Automotive Sensor Reference |
|---|---|
Use Scenario: Monitoring battery voltage in Bluetooth headsets and wearables using discrete analog comparators. IC Role / Device Role / Timing Role: Provides stable 62 V reference for comparator threshold setting in overvoltage detection circuitry. Use Value: Enables accurate trip point despite temperature variation due to +43.4 mV/°C TC and low 0.05 µA leakage. |
Use Scenario: Supply rail stabilization for MEMS pressure sensors in engine control modules. IC Role / Device Role / Timing Role: Acts as shunt regulator for isolated 5 V sensor bias rail derived from 12 V vehicle bus. Use Value: AEC-Q101 qualification and −65 °C to +150 °C operating range ensure functional safety in under-hood environments. |
| Industrial PLC Input Protection | Medical Device Voltage Clamp |
Use Scenario: Overvoltage clamping on 24 V digital input channels exposed to inductive transients. IC Role / Device Role / Timing Role: Shunt clamp absorbing 225 W peak pulses (8 × 20 µs) during relay coil flyback events. Use Value: Peak power rating and 215 Ω Zener impedance limit voltage overshoot to <68 V during surge events. |
Use Scenario: Precision voltage limiting in battery-powered infusion pump motor driver feedback paths. IC Role / Device Role / Timing Role: Regulates op-amp reference node to prevent ADC saturation during transient load switching. Use Value: Low 35 pF capacitance avoids phase shift in closed-loop current sensing circuits operating up to 1 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84C62ET1G | No AEC-Q101 qualification; identical electrical specs and SOT-23 package | Not suitable for automotive production; acceptable for commercial-grade consumer devices | Select when cost sensitivity outweighs automotive reliability requirements |
| MMSZ5255B-TP | 62 V nominal, but ±5% tolerance only at 20 mA; higher 500 Ω Zz @ 20 mA vs. 215 Ω @ 5 mA | Higher dynamic impedance reduces regulation accuracy under varying load currents | Prefer SZBZX84C62ET1G where tight low-current regulation and automotive qualification are mandatory |
Compared with BZX84C62ET1G and MMSZ5255B-TP, SZBZX84C62ET1G offers verified AEC-Q101 compliance, superior low-current Zener impedance (215 Ω @ 5 mA), and tighter process control for automotive and industrial voltage reference stability - making it the preferred choice where reliability and precision under light-load conditions are critical.
Availability
SZBZX84C62ET1G is available at Aetrix Electronics and suitable for automotive ECUs, portable medical monitors, and industrial PLC I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SZBZX84C62ET1G 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 power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, medical, and IoT applications.
SZBZX84C62ET1G belongs to the BZX84CxxxET1G/SZBZX84CxxxET1G family - engineered for compact, high-reliability voltage regulation in space-constrained and mission-critical systems.
FAQ
What is the Zener voltage tolerance of SZBZX84C62ET1G at 5 mA test current?
The SZBZX84C62ET1G has a Zener voltage range of 58 V to 66 V at 5 mA test current, corresponding to a ±5% tolerance around the nominal 62 V rating. This tolerance is guaranteed per onsemi's Electrical Characteristics table on page 3 of the datasheet and applies under TA = 25 °C conditions. The device maintains this specification across its full operating temperature range when derated per thermal resistance limits.
Is SZBZX84C62ET1G suitable for automotive applications?
Yes, SZBZX84C62ET1G is AEC-Q101 qualified and PPAP capable, explicitly designated for automotive and other applications requiring unique site and control change requirements (as noted in the "Specification Features" section). Its −65 °C to +150 °C junction temperature range, Class 3 HBM ESD rating, and validated reliability testing make it appropriate for under-hood and chassis-mounted automotive electronics.
What is the thermal resistance of SZBZX84C62ET1G on FR-5 board?
The thermal resistance, junction-to-ambient (RJA), for SZBZX84C62ET1G is 500 °C/W when mounted on an FR-5 board. This value is specified in the "Maximum Ratings" table on page 1 of the datasheet and assumes standard 1.0 × 0.75 × 0.62 inch board dimensions. Derating begins above 25 °C ambient at 2.0 mW/°C.
Does SZBZX84C62ET1G have a connection on pin 2?
No, pin 2 of SZBZX84C62ET1G is internally not connected (NC), as confirmed in the "Mechanical Characteristics" section and Pinout diagram on page 1 of the datasheet. The device uses a three-terminal SOT-23 package with active terminals only on pin 1 (anode) and pin 3 (cathode); pin 2 must remain electrically floating in PCB layout and schematic design.
What is the maximum reverse leakage current for SZBZX84C62ET1G?
The maximum reverse leakage current for SZBZX84C62ET1G is 0.05 µA at VR = 49.6 V, as specified in the Electrical Characteristics table on page 3. This parameter is measured at TA = 25 °C and reflects the diode's ability to maintain high impedance in non-conducting state - critical for low-power reference and standby circuits.
SZBZX84C62ET1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3 (TO-236)
SZBZX84C62ET1G FAQ
1.How can I place an order for SZBZX84C62ET1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZBZX84C62ET1G 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 SZBZX84C62ET1G reliable?
The price and inventory of SZBZX84C62ET1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZBZX84C62ET1G is usually 5 days.
3.What payment methods are accepted for SZBZX84C62ET1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZBZX84C62ET1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZBZX84C62ET1G?
SZBZX84C62ET1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZBZX84C62ET1G 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 SZBZX84C62ET1G?
For technical support, including SZBZX84C62ET1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZBZX84C62ET1G requirements.
6.How does Aetrix verify that SZBZX84C62ET1G is sourced from the original manufacturer or authorized distributors?
All SZBZX84C62ET1G 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 SZBZX84C62ET1G meets industry standards.
7.What is the process for return or replacement of SZBZX84C62ET1G?
All SZBZX84C62ET1G units undergo pre-shipment inspection (PSI). If there is an issue with SZBZX84C62ET1G, 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 SZBZX84C62ET1G part is unused and in its original packaging.
Return procedure for SZBZX84C62ET1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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