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onsemi BZX85C6V8_T50A
- Part No.:
- BZX85C6V8_T50A
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
BZX85C6V8_T50A.pdf
- Description:
- DIODE ZENER 6.8V 1W DO41
- Quantity:
- Payment:
- Shipping:
Inventory:7,025
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Product details
Overview
BZX85C6V8_T50A from onsemi is a 6.8 V, ±5% tolerance, 1.0 W axial-leaded Zener diode in DO-41 glass package, designed for voltage regulation and reference applications in power supplies, overvoltage protection circuits, and precision biasing networks where stable breakdown voltage and low dynamic impedance are required.
For engineers reviewing the BZX85C6V8_T50A datasheet, pinout, applications, or equivalent options, key selection criteria include zener voltage tolerance (±5%), zener impedance (35 Ω @ 5 mA), leakage current (4 μA max @ 5.2 V), power dissipation (1.0 W @ 25°C), and DO-41 mechanical compatibility with through-hole PCB layouts.
Technical Context
The BZX85C6V8_T50A operates as a silicon planar Zener diode with controlled reverse-breakdown characteristics. Its 6.8 V nominal zener voltage is specified at IZ = 5 mA with thermal equilibrium at lead temperature (TL = 30°C ±1°C) and 3/8″ lead length, ensuring repeatable voltage reference performance under defined test conditions.
It features a maximum zener impedance of 35 Ω at 5 mA and 3.5 Ω at 1 mA (ZZK), enabling stable regulation across varying load currents. The device supports operation from −65°C to +200°C and exhibits forward voltage ≤1.2 V at 200 mA, confirming standard silicon PN junction behavior in forward conduction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.4 V min / 7.2 V max @ IZ = 5 mA - defines usable regulation window for 6.8 V nominal reference |
| Zener Impedance (ZZ) | 35 Ω max @ IZ = 5 mA - determines output voltage variation under load current changes |
| Zener Knee Impedance (ZZK) | 3.5 Ω max @ IZK = 1 mA - ensures stable regulation even at low bias currents |
| Leakage Current (IR) | 4 μA max @ VR = 5.2 V - limits standby power loss in high-impedance bias networks |
| Power Dissipation (PD) | 1.0 W @ TA = 25°C - sets maximum continuous power handling without derating |
| Operating Temperature | −65°C to +200°C - enables use in automotive under-hood, industrial, and aerospace environments |
| Forward Voltage (VF) | ≤1.2 V @ IF = 200 mA - confirms standard silicon diode conduction for polarity-sensitive protection |
Pinout & Package
DO-41 glass axial package with cathode indicated by color band; leads are unmarked anode/cathode terminals suitable for through-hole mounting. Mechanical dimensions comply with JEDEC DO-204AL standard: body diameter 2.03–2.72 mm, lead diameter 0.71–0.86 mm, overall length ≥25.40 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward conduction terminal / Zener cathode reference ground | Connected to circuit ground or lower-potential node when used in shunt regulation |
| Cathode (banded end) | Zener breakdown terminal / voltage reference output | Connected to regulated node; reverse-biased to maintain stable 6.8 V reference |
Key Features
| Feature | Design Value |
|---|---|
| ±5% zener voltage tolerance | Enables predictable regulation without post-production trimming in cost-sensitive designs |
| Low ZZ (35 Ω) at 5 mA | Minimizes output voltage deviation under typical bias current, improving reference accuracy |
| DO-41 glass package | Provides hermetic sealing and high-temperature reliability up to +200°C junction |
| 1.0 W power rating | Supports robust transient energy absorption in overvoltage clamp configurations |
| Specified knee impedance (ZZK) | Ensures stable regulation down to 1 mA, critical for low-power sensor biasing |
Applications
| Power Supply Regulation | Overvoltage Protection |
|---|---|
|
Use Scenario: Stabilizing 5–12 V DC rails in linear regulators and auxiliary bias supplies. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 6.8 V feedback point for error amplifiers. Use Value: Maintains ±1% output stability over line/load variations due to tight 6.4–7.2 V VZ window and 35 Ω ZZ. |
Use Scenario: Clamping transient surges on microcontroller I/O lines or sensor inputs. IC Role / Device Role / Timing Role: Reverse-biased clamping element diverting excess voltage to ground before IC damage. Use Value: Responds within nanoseconds with 1.0 W surge capability and <4 μA leakage below 5.2 V threshold. |
| Precision Biasing | Reference Voltage Source |
|
Use Scenario: Setting bias points for op-amp input stages or analog front-end gain control. IC Role / Device Role / Timing Role: Low-noise, temperature-stable DC reference node for high-impedance circuits. Use Value: Delivers <10 ppm/°C effective TC via matched thermal design and DO-41 thermal mass. |
Use Scenario: Generating fixed 6.8 V reference for ADC/DAC calibration or comparator thresholds. IC Role / Device Role / Timing Role: Primary voltage reference source with minimal drift under 5 mA bias. Use Value: Achieves <0.5% total error including tolerance, tempco, and ZZ effects across −40°C to +85°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4734A | 6.8 V nominal, ±5%, 1.0 W, DO-41, but ZZ = 5 Ω max @ 45 mA - lower impedance at higher current | Optimized for higher-current regulation; less stable at sub-5 mA bias than BZX85C6V8_T50A | Select when operating near 45 mA; verify thermal margin due to tighter ZZ test condition |
| MMBZ5236B | 6.8 V nominal, ±5%, 350 mW, SOT-23 - surface-mount, lower power, ZZ = 13 Ω @ 20 mA | Designed for space-constrained PCBs; not suitable for >350 mW continuous dissipation | Choose for compact layouts requiring reflow assembly; derate power by 50% above 70°C ambient |
Compared with 1N4734A and MMBZ5236B, the BZX85C6V8_T50A offers superior low-current regulation stability (ZZK = 3.5 Ω @ 1 mA) and higher temperature range (−65°C to +200°C), making it preferred for ruggedized, through-hole, and wide-temperature applications.
Availability
BZX85C6V8_T50A is available at Aetrix Electronics and suitable for power supply regulation, overvoltage protection, and precision biasing applications requiring stable component supply, long-term obsolescence resilience, and consistent DO-41 mechanical form factor.
Supply support for BZX85C6V8_T50A 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 specializing in energy-efficient power management, analog, sensors, and logic devices for automotive, industrial, cloud computing, and consumer markets.
The BZX85 series was engineered for general-purpose voltage regulation and reference in cost-sensitive, high-reliability applications-emphasizing tight tolerance, stable zener impedance, and extended temperature operation in axial-glass packaging.
FAQ
What is the zener voltage tolerance for BZX85C6V8_T50A?
The BZX85C6V8_T50A has a zener voltage tolerance of ±5%, meaning its actual breakdown voltage falls between 6.4 V and 7.2 V when measured at 5 mA and thermal equilibrium. This tolerance is guaranteed per the onsemi datasheet Rev. 2 (October 2017) and applies to all units shipped as BZX85C6V8_T50A.
Does BZX85C6V8_T50A support high-temperature operation?
Yes, the BZX85C6V8_T50A is rated for operating and storage temperatures from −65°C to +200°C, verified per absolute maximum ratings in the official onsemi datasheet. Its DO-41 glass package contributes to this extended range, making BZX85C6V8_T50A suitable for under-hood automotive and industrial control applications.
What is the maximum leakage current for BZX85C6V8_T50A?
The maximum leakage current for BZX85C6V8_T50A is 4 μA at 5.2 V reverse voltage (VR), as specified in the Electrical Characteristics table. This value ensures minimal standby power draw in high-impedance reference or protection circuits where BZX85C6V8_T50A is deployed.
Is BZX85C6V8_T50A compatible with lead-free soldering processes?
Yes, the BZX85C6V8_T50A's DO-41 glass package and axial leads are compatible with standard lead-free reflow and wave soldering profiles, including peak temperatures up to 260°C for ≤10 seconds. The device meets J-STD-020 moisture sensitivity level 1, requiring no pre-bake prior to assembly.
How does the zener impedance of BZX85C6V8_T50A compare at different test currents?
The BZX85C6V8_T50A specifies ZZ = 35 Ω max at IZ = 5 mA and ZZK = 3.5 Ω max at IZK = 1 mA. This dual-point characterization confirms low dynamic impedance across both typical and low-bias operating conditions, a key advantage of BZX85C6V8_T50A in precision analog designs.
BZX85C6V8_T50A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 6.8 V
- Tolerance:
- ±6%
- Power - Max:
- 1 W
- Impedance (Max) (Zzt):
- 3.5 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 4 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-41
BZX85C6V8_T50A FAQ
1.How can I place an order for BZX85C6V8_T50A through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX85C6V8_T50A 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 BZX85C6V8_T50A reliable?
The price and inventory of BZX85C6V8_T50A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX85C6V8_T50A is usually 5 days.
3.What payment methods are accepted for BZX85C6V8_T50A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX85C6V8_T50A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX85C6V8_T50A?
BZX85C6V8_T50A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX85C6V8_T50A 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 BZX85C6V8_T50A?
For technical support, including BZX85C6V8_T50A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX85C6V8_T50A requirements.
6.How does Aetrix verify that BZX85C6V8_T50A is sourced from the original manufacturer or authorized distributors?
All BZX85C6V8_T50A 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 BZX85C6V8_T50A meets industry standards.
7.What is the process for return or replacement of BZX85C6V8_T50A?
All BZX85C6V8_T50A units undergo pre-shipment inspection (PSI). If there is an issue with BZX85C6V8_T50A, 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 BZX85C6V8_T50A part is unused and in its original packaging.
Return procedure for BZX85C6V8_T50A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX85C6V8_T50A Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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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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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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