My Inquiry
My Account
onsemi SZBZX84B6V8LT1G
- Part No.:
- SZBZX84B6V8LT1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
SZBZX84B6V8LT1G.pdf
- Description:
- DIODE ZENER 6.8V 250MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,111
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SZBZX84B6V8LT1G from onsemi is a tight-tolerance Zener diode in SOT-23 package, delivering 6.8 V nominal regulation at 5 mA test current with ±1% voltage tolerance (6.66–6.94 V), 15 Ω dynamic impedance, and 250 mW power dissipation on FR-5 board. It serves as a precision voltage reference or clamp in low-power analog circuits, battery management systems, and portable device power rails.
For engineers reviewing the SZBZX84B6V8LT1G datasheet, pinout, applications, or equivalent options, key selection criteria include its 1% Zener voltage tolerance, 15 Ω Zener impedance at 5 mA, −65 °C to +150 °C operating range, AEC-Q101 qualification for automotive use, and Pb-free SOT-23 surface-mount compatibility.
Technical Context
This device operates as a two-terminal voltage reference using controlled reverse-biased Zener breakdown. Its 6.8 V nominal voltage exhibits a +1.2 mV/°C temperature coefficient, enabling stable regulation across industrial and automotive temperature ranges. The SOT-23 package supports automated placement and reflow soldering per JEDEC J-STD-020.
Designed for low-current regulation, it specifies 2 μA maximum reverse leakage at 5.2 V and 0.9 V forward voltage at 10 mA. Its 155 pF capacitance at 0 V bias and 1 MHz makes it suitable for DC and low-frequency stabilization-not RF bypassing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 6.66–6.94 V at 5 mA (±1% tolerance ensures precise reference stability) |
| Zener Impedance | 15 Ω at 5 mA (low dynamic resistance maintains regulation under load variation) |
| Power Dissipation | 250 mW on FR-5 board (supports continuous operation in compact PCB layouts) |
| Temp Coefficient | +1.2 mV/°C at 5 mA (positive drift enables predictable compensation in thermal designs) |
| Reverse Leakage | 2 μA max at 5.2 V (minimizes quiescent current in battery-powered applications) |
| Capacitance | 155 pF at 0 V, 1 MHz (suitable for DC/low-frequency filtering, not high-speed signal paths) |
| ESD Rating | Class 3 (>16 kV HBM) (robust handling during assembly and field operation) |
Pinout & Package
Package: SOT-23 (TO-236), 2.90 × 1.30 × 1.00 mm, Pb-free, RoHS compliant, cathode marked by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Connected to lower-potential node; reverse-biased during regulation |
| 2 | No Connection | Internally unconnected; must remain floating-no PCB trace or pad required |
| 3 | Cathode | Connected to higher-potential node; defines regulated output voltage reference point |
Key Features
| Feature | Design Value |
|---|---|
| Tight voltage tolerance | ±1% (6.66–6.94 V) enables accurate voltage setting without trimming in production |
| AEC-Q101 qualification | Validated for automotive electronics including infotainment and body control modules |
| High ESD robustness | Class 3 (>16 kV HBM) eliminates need for external ESD protection in handheld interfaces |
| Low Zener impedance | 15 Ω at 5 mA ensures minimal output voltage deviation under varying load currents |
| Pb-free & RoHS compliant | Meets global environmental compliance requirements for industrial and consumer shipments |
Applications
| Automotive Sensor Reference | Portable Device Power Clamp |
|---|---|
Use Scenario: Providing stable 6.8 V reference for analog sensor signal conditioning in engine control units. IC Role / Device Role / Timing Role: Two-terminal Zener reference diode establishing fixed bias point for op-amp input stages. Use Value: ±1% tolerance and +1.2 mV/°C TC enable <10 mV total drift over −40 °C to +125 °C, meeting ASIL-B sensor accuracy requirements. |
Use Scenario: Clamping USB port VBUS line to protect downstream 5 V LDOs during hot-plug transients. IC Role / Device Role / Timing Role: Reverse-biased Zener shunt element limiting peak voltage to 6.94 V during surge events. Use Value: 250 mW rating and 15 Ω impedance allow safe clamping of 37 mA transient current without thermal runaway. |
| Industrial PLC Input Protection | Medical Wearable Battery Monitor |
Use Scenario: Protecting 24 V digital input channels against overvoltage from field wiring faults. IC Role / Device Role / Timing Role: Zener clamp placed between input terminal and ground to divert fault current. Use Value: 16 kV HBM ESD rating and −65 °C to +150 °C operating range ensure reliability in harsh factory environments. |
Use Scenario: Regulating reference voltage for ADC measurement of lithium-ion cell voltage in fitness trackers. IC Role / Device Role / Timing Role: Precision Zener providing stable 6.8 V reference for ratiometric ADC scaling. Use Value: 2 μA max leakage at 5.2 V preserves battery life in always-on monitoring mode with 10-year shelf-life targets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84B6V8LT1G | Same electrical specs but lacks AEC-Q101 qualification and SZ-prefix automotive traceability | Approved for commercial/industrial use only; not accepted in automotive PPAP submissions | Select when automotive qualification is unnecessary and cost sensitivity is high |
| SZBZX84C6V8LT1G | Standard-tolerance version (±5%: 6.4–7.2 V); higher Zener impedance (80 Ω vs. 15 Ω) | Acceptable for non-critical biasing where 1% precision is not required | Choose for general-purpose clamping where tighter regulation is not needed |
Compared with SZBZX84B6V8LT1G, BZX84B6V8LT1G offers identical performance without automotive validation, while SZBZX84C6V8LT1G trades precision and low impedance for broader tolerance and lower cost-making SZBZX84B6V8LT1G optimal for safety-critical or high-stability applications demanding both accuracy and qualification.
Availability
SZBZX84B6V8LT1G is available at Aetrix Electronics and suitable for automotive sensor interfaces, portable device power clamping, and industrial PLC input protection requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for SZBZX84B6V8LT1G 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 specializing in energy-efficient silicon solutions for automotive, industrial, cloud, and IoT applications.
SZBZX84BxxxLT1G belongs to onsemi's AEC-Q101-qualified Zener regulator family, engineered for precision voltage reference and overvoltage protection in safety-critical automotive and industrial systems.
FAQ
What is the Zener voltage tolerance of SZBZX84B6V8LT1G?
The SZBZX84B6V8LT1G has a tight ±1% Zener voltage tolerance, specified as 6.66 V minimum to 6.94 V maximum at 5 mA test current. This precision enables reliable voltage reference generation in applications where standard 5% Zener diodes would introduce unacceptable error, such as in automotive sensor signal chains or medical wearable battery monitors.
Is SZBZX84B6V8LT1G qualified for automotive use?
Yes, SZBZX84B6V8LT1G is AEC-Q101 qualified and PPAP capable, with full automotive-grade traceability via the "SZ" prefix. It meets stringent reliability, thermal, and ESD requirements for deployment in engine control units, body electronics, and ADAS subsystems-unlike the non-SZ BZX84B6V8LT1G variant.
What is the pin configuration of SZBZX84B6V8LT1G?
SZBZX84B6V8LT1G uses the SOT-23 package with Pin 1 = Anode, Pin 2 = No Connection (must remain unconnected on PCB), and Pin 3 = Cathode. The cathode is marked by a polarity band on the package body, and Pin 2 is internally isolated-no routing or thermal pad is required.
How does the temperature coefficient affect SZBZX84B6V8LT1G performance?
SZBZX84B6V8LT1G has a +1.2 mV/°C temperature coefficient at 5 mA, meaning its Zener voltage increases linearly with junction temperature. This predictable positive drift allows designers to compensate system-level offsets in temperature-sensitive analog circuits, especially within the −40 °C to +125 °C automotive operating range.
Can SZBZX84B6V8LT1G replace standard-tolerance Zeners in existing designs?
SZBZX84B6V8LT1G is pin-compatible and electrically substitutable for standard-tolerance variants like SZBZX84C6V8LT1G, but delivers superior regulation stability due to its ±1% tolerance and 15 Ω Zener impedance. Migration requires no PCB changes but provides measurable improvement in reference accuracy and load regulation-particularly valuable in battery-powered or thermally variable environments.
SZBZX84B6V8LT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- SZBZX84BxxxLT1G
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.8 V
- Tolerance:
- ±2%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 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)
SZBZX84B6V8LT1G FAQ
1.How can I place an order for SZBZX84B6V8LT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZBZX84B6V8LT1G 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 SZBZX84B6V8LT1G reliable?
The price and inventory of SZBZX84B6V8LT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZBZX84B6V8LT1G is usually 5 days.
3.What payment methods are accepted for SZBZX84B6V8LT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZBZX84B6V8LT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZBZX84B6V8LT1G?
SZBZX84B6V8LT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZBZX84B6V8LT1G 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 SZBZX84B6V8LT1G?
For technical support, including SZBZX84B6V8LT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZBZX84B6V8LT1G requirements.
6.How does Aetrix verify that SZBZX84B6V8LT1G is sourced from the original manufacturer or authorized distributors?
All SZBZX84B6V8LT1G 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 SZBZX84B6V8LT1G meets industry standards.
7.What is the process for return or replacement of SZBZX84B6V8LT1G?
All SZBZX84B6V8LT1G units undergo pre-shipment inspection (PSI). If there is an issue with SZBZX84B6V8LT1G, 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 SZBZX84B6V8LT1G part is unused and in its original packaging.
Return procedure for SZBZX84B6V8LT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZBZX84B6V8LT1G Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
