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onsemi BZX84C6V8_S00Z
- Part No.:
- BZX84C6V8_S00Z
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C6V8_S00Z.pdf
- Description:
- DIODE ZENER 6.9V 550MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:5,478
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Product details
Overview
BZX84C6V8_S00Z from ON Semiconductor (formerly Fairchild) is a 6.8 V, ±5% tolerance Zener diode in SOT-23 package, rated for 250 mW power dissipation at 25°C ambient, with 15 Ω dynamic impedance at 5 mA test current and 2 µA maximum reverse leakage at 4.0 V. It provides precision voltage regulation in low-power biasing and reference circuits.
For engineers reviewing the BZX84C6V8_S00Z datasheet, pinout, applications, or equivalent options, key selection criteria include zener voltage tolerance, dynamic impedance at specified test current, thermal resistance (RJA = 465°C/W), reverse leakage at VR, and SOT-23 footprint compatibility in space-constrained designs.
Technical Context
The BZX84C6V8_S00Z operates as a silicon planar Zener diode optimized for stable voltage reference and overvoltage protection in low-current applications. Its 6.8 V nominal breakdown voltage is specified at IZ = 5.0 mA, with dynamic impedance of 15 Ω and temperature coefficient of +1.2 mV/°C.
It exhibits 2 µA maximum reverse leakage current at VR = 4.0 V and 155 pF junction capacitance at 0 V, making it suitable for DC biasing and low-frequency stabilization rather than high-speed signal clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.4–7.2 V at IZ = 5 mA - defines regulated output range under standard test conditions |
| Tolerance | ±5% - ensures predictable voltage accuracy across production lots |
| Zener Impedance (ZZ) | 15 Ω max at IZ = 5 mA - determines regulation stiffness against load current variation |
| Power Dissipation (PD) | 250 mW at TA = 25°C - sets maximum continuous DC power handling on FR-4 PCB |
| Reverse Leakage (IR) | 2 µA max at VR = 4.0 V - limits parasitic current in off-state bias networks |
| Junction-to-Ambient RJA | 465°C/W - indicates thermal derating requirement above 25°C ambient |
| Capacitance (CJ) | 155 pF at VR = 0 V, f = 1 MHz - constrains use in >10 MHz signal paths |
Pinout & Package
Package: SOT-23 (TO-236AB), surface-mount, 3-terminal plastic case with cathode band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in reverse-biased Zener configuration |
| Cathode | Zener breakdown terminal | Connected to higher-potential node; marked by band; referenced for thermal resistance (RJL = 220°C/W) |
| Case / Not connected | Non-electrical mechanical element | SOT-23 body is electrically isolated; no internal connection to die |
Key Features
| Feature | Design Value |
|---|---|
| ±5% voltage tolerance | Enables tight reference accuracy without post-production trimming in cost-sensitive consumer and industrial designs |
| Low dynamic impedance (15 Ω) | Maintains <±20 mV output shift across 1–10 mA load current changes in feedback networks |
| SOT-23 footprint | Supports automated placement and reflow in high-density PCB layouts with 2.9 mm × 1.3 mm board area |
| 150°C max junction temperature | Allows operation in extended-temperature environments when derated per RJA curve |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 6.8 V reference for op-amp comparators and ADC voltage dividers in battery-powered sensors. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference node potential. Use Value: Delivers ±5% accuracy and <15 Ω source impedance, reducing drift-induced measurement error in 12-bit analog front ends. | Use Scenario: Protecting microcontroller GPIO pins from transient surges up to ±15 V in industrial control I/O modules. IC Role / Device Role / Timing Role: Shunt clamp limiting input voltage to safe levels during ESD or inductive kick events. Use Value: Activates at 6.8 V with 2 µA leakage below clamp threshold, minimizing standby power impact on 3.3 V logic rails. |
| Current Source Bias | Temperature-Stable Oscillator Trim |
Use Scenario: Setting bias current for low-noise JFET amplifiers in audio preamplifier stages. IC Role / Device Role / Timing Role: Zener-based constant-current generator using series resistor and BZX84C6V8_S00Z voltage reference. Use Value: Achieves <±100 ppm/°C current stability via +1.2 mV/°C tempco matched with resistor TC in precision bias networks. | Use Scenario: Fine-tuning oscillator frequency in crystal-based real-time clock circuits where 6.8 V reference adjusts varactor bias. IC Role / Device Role / Timing Role: Voltage reference establishing tuning voltage for voltage-controlled crystal oscillator (VCXO) varactors. Use Value: 155 pF junction capacitance minimizes loading on 32.768 kHz crystal tank, preserving Q-factor and long-term timing stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5235BS-7-F | 6.8 V, ±5%, 200 mW, 10 Ω ZZ @ 20 mA, SOT-23 | Lower ZZ but higher test current; tighter thermal spec (RJA = 350°C/W) | Preferred for higher-current references where 20 mA bias is acceptable and thermal margin is constrained |
| BZX84-C6V8,115 | 6.8 V, ±5%, 250 mW, 15 Ω ZZ @ 5 mA, SOT-23 - identical electrical specs, Nexperia marking | No functional difference; same footprint, same JEDEC registration | Drop-in alternative with identical performance and qualification; suitable for dual-sourcing programs |
Compared with MMBZ5235BS-7-F, BZX84C6V8_S00Z offers lower test-current dependency and better compatibility with 5 mA bias networks; compared with BZX84-C6V8,115, it shares identical electrical behavior and mechanical form, differing only in manufacturer traceability and reel packaging.
Availability
BZX84C6V8_S00Z is available at Aetrix Electronics and suitable for power supply reference, overvoltage clamp, and current source bias applications requiring stable component supply, consistent parametric performance, and SOT-23 footprint reliability.
Supply support for BZX84C6V8_S00Z 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
ON Semiconductor is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and edge applications.
The BZX84 series belongs to ON Semiconductor's general-purpose Zener diode product line, designed specifically for cost-effective, space-efficient voltage regulation and protection in high-volume consumer and industrial electronics.
FAQ
What is the nominal Zener voltage and tolerance of BZX84C6V8_S00Z?
The BZX84C6V8_S00Z has a nominal Zener voltage of 6.8 V with a tolerance of ±5%, meaning its actual breakdown voltage falls between 6.4 V and 7.2 V when tested at 5.0 mA. This tolerance is confirmed in the Electrical Characteristics table of the official ON Semiconductor datasheet Rev. 1.10. The BZX84C6V8_S00Z achieves this specification using silicon planar Zener technology calibrated during wafer sort.
What is the maximum power dissipation rating for BZX84C6V8_S00Z?
The BZX84C6V8_S00Z is rated for 250 mW power dissipation at an ambient temperature of 25°C when mounted on a standard FR-4 PCB (76.2 mm × 114.3 mm). Derating is required above 25°C per the RJA value of 465°C/W. The BZX84C6V8_S00Z must not exceed this limit continuously to avoid junction temperature exceeding 150°C.
What is the dynamic impedance (ZZ) of BZX84C6V8_S00Z and why does it matter?
The BZX84C6V8_S00Z has a maximum dynamic impedance of 15 Ω at IZ = 5.0 mA. This parameter quantifies how tightly the device regulates voltage under changing load current - lower ZZ means smaller output voltage deviation. In practice, the BZX84C6V8_S00Z maintains regulation within ±15 mV for ±0.2 mA current shifts, critical for precision analog references.
Does BZX84C6V8_S00Z have a specified temperature coefficient, and what is its value?
Yes, the BZX84C6V8_S00Z has a temperature coefficient of +1.2 mV/°C, measured at IZ = 5.0 mA. This positive coefficient means its Zener voltage increases linearly with junction temperature. The BZX84C6V8_S00Z datasheet confirms this value in the "Electrical Characteristics (Continued)" table, enabling accurate thermal drift compensation in reference designs.
Is BZX84C6V8_S00Z compatible with lead-free reflow soldering processes?
Yes, the BZX84C6V8_S00Z uses a matte tin (Sn) lead finish and is qualified for standard lead-free reflow profiles per J-STD-020, including peak temperatures up to 260°C. Its SOT-23 package construction and internal die attach meet IPC/JEDEC standards. The BZX84C6V8_S00Z has been validated for compatibility with both SnPb and Pb-free assembly lines without delamination or parametric shift.
BZX84C6V8_S00Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 6.9 V
- Tolerance:
- ±5%
- Power - Max:
- 550 mW
- Impedance (Max) (Zzt):
- 6 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 4 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BZX84C6V8_S00Z FAQ
1.How can I place an order for BZX84C6V8_S00Z through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C6V8_S00Z 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 BZX84C6V8_S00Z reliable?
The price and inventory of BZX84C6V8_S00Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C6V8_S00Z is usually 5 days.
3.What payment methods are accepted for BZX84C6V8_S00Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C6V8_S00Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C6V8_S00Z?
BZX84C6V8_S00Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C6V8_S00Z 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 BZX84C6V8_S00Z?
For technical support, including BZX84C6V8_S00Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C6V8_S00Z requirements.
6.How does Aetrix verify that BZX84C6V8_S00Z is sourced from the original manufacturer or authorized distributors?
All BZX84C6V8_S00Z 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 BZX84C6V8_S00Z meets industry standards.
7.What is the process for return or replacement of BZX84C6V8_S00Z?
All BZX84C6V8_S00Z units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C6V8_S00Z, 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 BZX84C6V8_S00Z part is unused and in its original packaging.
Return procedure for BZX84C6V8_S00Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C6V8_S00Z Tags
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