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Taiwan Semiconductor Corporation BZX585B8V2 RSG
- Part No.:
- BZX585B8V2 RSG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX585B8V2 RSG.pdf
- Description:
- DIODE ZENER 8.2V 200MW SOD523F
- Quantity:
- Payment:
- Shipping:
Inventory:4,813
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Product details
Overview
BZX585B8V2 RSG from Taiwan Semiconductor is a surface-mount Zener diode with nominal zener voltage 8.2 V ±1.5% (8.04–8.36 V), 200 mW power dissipation, 15 Ω dynamic impedance at 5 mA test current, and SOD-523F package. It provides precision voltage regulation in low-power signal conditioning, reference, and overvoltage protection circuits.
For engineers reviewing the BZX585B8V2 RSG datasheet, BZX585B8V2 RSG pinout, BZX585B8V2 RSG application, or BZX585B8V2 RSG equivalent, key selection criteria include zener tolerance (2%), thermal resistance (680 °C/W), reverse leakage (0.63 µA at 6.2 V), temperature coefficient (+3.2 mV/°C), and MSL-1 moisture sensitivity rating.
Technical Context
This device operates as a two-terminal voltage reference, maintaining stable output across varying load and temperature conditions. Its 2% voltage tolerance, low dynamic impedance (15 Ω @ IZT = 5 mA), and positive temperature coefficient (+3.2 mV/°C) support accurate biasing and clamping in analog front-ends and sensor interfaces.
Designed for reflow soldering up to 260°C/10s and compliant with RoHS and halogen-free standards (IEC 61249-2-21), the BZX585B8V2 RSG targets space-constrained PCBs where thermal management and environmental compliance are critical-especially in portable instrumentation and automotive body electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.2 V nominal, 8.04–8.36 V range at 5 mA - ensures tight regulation for 8 V reference rails |
| Power Dissipation (PD) | 200 mW - limits continuous current to ~24 mA at 8.2 V, suitable for low-power bias networks |
| Dynamic Impedance (ZZT) | 15 Ω @ 5 mA - minimizes output voltage variation under small-signal load changes |
| Reverse Leakage (IR) | 0.63 µA max @ 6.2 V - preserves low quiescent current in high-impedance sensing nodes |
| Temperature Coefficient (TC) | +3.2 mV/°C - enables predictable drift compensation in temperature-stable references |
| Thermal Resistance (RθJA) | 680 °C/W - requires careful layout for ambient temperatures above 75°C to avoid junction exceedance |
| Moisture Sensitivity Level | MSL-1 - no bake requirement before assembly, simplifying SMT line handling |
Pinout & Package
SOD-523F package: ultra-small surface-mount outline (1.6 × 0.8 × 0.6 mm), anode-cathode polarity marked by cathode band, compatible with standard 0201 footprint variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common reference node in reverse-bias regulation | Connected to lower-potential side of regulated circuit; defines polarity for correct clamping orientation |
| Cathode | Current exit terminal in forward bias; zener breakdown terminal in reverse bias | Connected to higher-potential rail; carries regulated voltage output when reverse-biased above VZ |
Key Features
| Feature | Design Value |
|---|---|
| 2% Zener voltage tolerance | Enables direct use in 8.2 V reference designs without trimming or calibration |
| Halogen-free compound | Meets IEC 61249-2-21 for environmentally compliant end-product certifications |
| MSL-1 rating | Eliminates pre-bake step during PCB assembly, reducing manufacturing cycle time |
| 260°C/10s soldering guarantee | Supports lead-free reflow profiles without parametric shift or package delamination |
| Green epoxy encapsulation | Provides consistent visual identification and UV stability for long-term reliability |
Applications
| Portable Sensor Reference | USB Port Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 8.2 V bias to MEMS pressure sensor signal chain in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Precision voltage reference for ADC reference buffer and op-amp bias network. Use Value: 2% tolerance and +3.2 mV/°C TC allow <±10 mV total drift over –20°C to +70°C, meeting sensor accuracy spec. | Use Scenario: Clamping transient surges on USB VBUS line in embedded host controllers. IC Role / Device Role / Timing Role: Reverse-biased overvoltage protection element shunting >8.4 V spikes to ground. Use Value: 15 Ω ZZT and 0.63 µA IR ensure fast response with negligible standby leakage and minimal voltage overshoot. |
| Automotive Body Control Module | Industrial PLC Input Protection |
Use Scenario: Regulating supply for LIN transceiver bias in door module ECUs exposed to 12 V battery transients. IC Role / Device Role / Timing Role: Zener clamp limiting input voltage to 8.2 V ±1.5%, protecting downstream LDO and logic. Use Value: MSL-1 and 260°C solder compatibility enable robust automotive-grade reflow without derating. | Use Scenario: Protecting 24 V digital input channels against ESD and inductive kickback in factory automation controllers. IC Role / Device Role / Timing Role: Low-leakage clamping diode placed before optocoupler input stage. Use Value: 0.63 µA reverse leakage at 6.2 V prevents false triggering in high-impedance input circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX585B8V2 E6327 (Infineon) | Same 8.2 V, 2% tolerance, SOD-523 package; 200 mW rating; 15 Ω ZZT; but MSL-3 and higher IR (1 µA @ 6.2 V) | Requires dry pack storage and bake prior to assembly; less suitable for high-reliability uncontrolled-humidity environments | Select if Infineon sourcing is preferred and MSL-3 handling infrastructure exists |
| MMBZ5233BS-7-F (Diodes Inc.) | 8.2 V, 5% tolerance; SOD-323 package (larger footprint); 200 mW; 20 Ω ZZT; 0.1 µA IR @ 6.2 V | Looser voltage tolerance and different package require PCB redesign; better leakage performance | Choose only if tighter leakage (<0.1 µA) is prioritized over voltage accuracy and board space |
Compared with BZX585B8V2 RSG, the Infineon variant offers identical electrical specs but stricter handling requirements, while the Diodes Inc. part trades voltage precision and size for ultra-low leakage-making BZX585B8V2 RSG optimal for space-constrained, accuracy-critical 8.2 V reference designs requiring MSL-1 simplicity.
Availability
BZX585B8V2 RSG is available at Aetrix Electronics and suitable for portable sensor reference, USB port overvoltage clamp, and automotive body control module applications requiring stable component supply, full traceability, and RoHS-compliant sourcing.
Supply support for BZX585B8V2 RSG 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
Taiwan Semiconductor is a vertically integrated analog and discrete component manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, automotive, and consumer markets since 1991.
The BZX585B series belongs to Taiwan Semiconductor's Small Signal Product line, engineered specifically for high-accuracy, low-power voltage regulation and protection in miniaturized surface-mount applications.
FAQ
What is the zener voltage tolerance of BZX585B8V2 RSG?
The BZX585B8V2 RSG has a zener voltage tolerance of ±1.5% (2% total span), specified as 8.04 V minimum to 8.36 V maximum at 5 mA test current. This tight tolerance allows direct use in 8.2 V reference designs without external trimming. The BZX585B8V2 RSG achieves this via laser-trimmed silicon process and is verified per Taiwan Semiconductor's C1607 specification revision.
Is BZX585B8V2 RSG compatible with lead-free reflow soldering?
Yes, the BZX585B8V2 RSG is qualified for high-temperature lead-free reflow with guaranteed performance after exposure to 260°C for 10 seconds. Its SOD-523F package and halogen-free epoxy withstand IPC/JEDEC J-STD-020 conditions. The BZX585B8V2 RSG datasheet (Version C1607) explicitly states this qualification, making it suitable for modern SMT lines without derating.
What is the maximum reverse leakage current for BZX585B8V2 RSG?
The maximum reverse leakage current (IR) for BZX585B8V2 RSG is 0.63 µA at 6.2 V, measured at 25°C. This value is confirmed in the Electrical Characteristics table of the official datasheet (Version C1607). Low leakage ensures minimal loading on high-impedance nodes-critical when using the BZX585B8V2 RSG in precision reference or sensor bias circuits.
Does BZX585B8V2 RSG have a defined thermal resistance?
Yes, the BZX585B8V2 RSG has a junction-to-ambient thermal resistance (RθJA) of 680 °C/W, measured under standard JEDEC conditions on FR-4 board with minimal copper. This value directly determines safe operating ambient temperature: at 200 mW dissipation, junction temperature rise is ~136°C, so ambient must stay below 14°C to keep TJ ≤ 150°C. The BZX585B8V2 RSG datasheet specifies this in the Maximum Ratings table.
What packaging format is used for BZX585B8V2 RSG?
The BZX585B8V2 RSG is supplied on 7-inch reels with 8,000 units per reel, as indicated in the Ordering Information section of the Taiwan Semiconductor datasheet (Version C1607). The "RSG" suffix confirms green compound, SOD-523F package, and tape-and-reel delivery. This packaging supports high-speed pick-and-place assembly and aligns with standard SMT logistics for the BZX585B8V2 RSG.
BZX585B8V2 RSG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 8.2 V
- Tolerance:
- ±2%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 630 nA @ 5 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523F
BZX585B8V2 RSG FAQ
1.How can I place an order for BZX585B8V2 RSG through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX585B8V2 RSG 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 BZX585B8V2 RSG reliable?
The price and inventory of BZX585B8V2 RSG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX585B8V2 RSG is usually 5 days.
3.What payment methods are accepted for BZX585B8V2 RSG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX585B8V2 RSG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX585B8V2 RSG?
BZX585B8V2 RSG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX585B8V2 RSG 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 BZX585B8V2 RSG?
For technical support, including BZX585B8V2 RSG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX585B8V2 RSG requirements.
6.How does Aetrix verify that BZX585B8V2 RSG is sourced from the original manufacturer or authorized distributors?
All BZX585B8V2 RSG 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 BZX585B8V2 RSG meets industry standards.
7.What is the process for return or replacement of BZX585B8V2 RSG?
All BZX585B8V2 RSG units undergo pre-shipment inspection (PSI). If there is an issue with BZX585B8V2 RSG, 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 BZX585B8V2 RSG part is unused and in its original packaging.
Return procedure for BZX585B8V2 RSG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX585B8V2 RSG Tags
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MM5Z5V1ST1G
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