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Taiwan Semiconductor Corporation BZX585B2V7
- Part No.:
- BZX585B2V7
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX585B2V7.pdf
- Description:
- DIODE ZENER 2.7V 200MW SOD523F
- Quantity:
- Payment:
- Shipping:
Inventory:3,733
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Product details
Overview
BZX585B2V7 from Taiwan Semiconductor is a surface-mount Zener diode with nominal zener voltage 2.7 V ±2%, 200 mW power dissipation, and 1.0 Ω typical zener impedance at 5 mA test current. It operates within -65°C to +150°C storage temperature range and is packaged in SOD-523F for space-constrained voltage regulation in low-power analog circuits.
For engineers reviewing the BZX585B2V7 datasheet, BZX585B2V7 pinout, BZX585B2V7 application, or BZX585B2V7 equivalent, key selection criteria include its 2.7 V zener tolerance (±2%), low dynamic impedance (1.0 Ω), guaranteed high-temperature soldering (260°C/10s), halogen-free construction, and RoHS compliance - all critical for precision biasing and overvoltage protection in portable and automotive electronics.
Technical Context
The BZX585B2V7 functions as a two-terminal voltage reference device operating in reverse breakdown mode. Its 2.7 V nominal zener voltage is specified at 5 mA test current (IZT), with maximum zener impedance of 1.0 Ω and maximum reverse leakage current of 1 μA at 1 V reverse bias.
Thermal resistance from junction to ambient is 680°C/W, enabling operation up to 150°C junction temperature. The device features a temperature coefficient of -3.5 mV/°C at IZT, indicating predictable negative drift with rising temperature - essential for stable reference design across thermal gradients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.7 V nominal, 2.65–2.75 V range at 5 mA - ensures tight voltage clamping for 3.3 V rail monitoring |
| Power Dissipation | 200 mW - supports continuous operation in low-current bias networks without heatsinking |
| Zener Impedance (ZZT) | 1.0 Ω typical at 5 mA - minimizes output voltage variation under load transients |
| Reverse Leakage (IR) | ≤1 μA at 1 V - preserves low quiescent current in battery-powered sensor nodes |
| Temperature Coefficient | -3.5 mV/°C at IZT - enables predictable compensation in temperature-sensitive references |
| Package | SOD-523F - 0.9 mm × 1.7 mm footprint ideal for ultra-compact PCB layouts |
| Moisture Sensitivity | MSL 1 - no baking required before reflow, simplifying manufacturing flow |
Pinout & Package
SOD-523F is a two-terminal surface-mount package with anode and cathode terminals on opposite ends of a rectangular body. Cathode identified by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower potential node during normal operation; forms reference ground return path |
| Cathode | Zener breakdown terminal | Marked end; connected to higher potential node to enable reverse-biased regulation |
Key Features
| Feature | Design Value |
|---|---|
| 2% Zener Voltage Tolerance | Enables precise 2.7 V reference generation without post-calibration in ADC bias or LDO feedback networks |
| Halogen-Free Construction | Complies with IEC 61249-2-21, supporting environmentally compliant manufacturing and end-of-life processing |
| High-Temperature Soldering Rating | Guaranteed 260°C/10s reflow survivability - compatible with standard lead-free assembly processes |
| Pb-Free & RoHS Compliant | Meets EU Directive 2011/65/EU and WEEE 2002/96/EC requirements for global market access |
| Low Capacitance | Typical 18 pF at 0 V bias - preserves signal integrity in RF detector and high-speed clamp applications |
Applications
| Portable Power Management | Automotive Sensor Biasing |
|---|---|
Use Scenario: Regulating reference voltage for lithium-ion battery fuel gauges and charger ICs in wearables and IoT trackers. IC Role / Device Role / Timing Role: Zener diode providing stable 2.7 V reference for analog front-end comparators and ADC input scaling. Use Value: Tight 2% tolerance and low 1.0 Ω impedance ensure <±5 mV reference error across operating current range, improving state-of-charge accuracy. | Use Scenario: Supplying bias voltage to MEMS pressure sensors and Hall-effect position sensors in engine control modules. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA) voltage clamp protecting sensor supply rails against transient overvoltage events. Use Value: MSL 1 rating and -65°C to +150°C storage range support direct placement into harsh under-hood environments without pre-baking or derating. |
| Industrial Signal Conditioning | Consumer Audio DC Blocking |
Use Scenario: Setting bias point for op-amp input stages in 4–20 mA loop transmitters and RTD interface circuits. IC Role / Device Role / Timing Role: Precision shunt regulator establishing fixed common-mode voltage for differential amplifiers and instrumentation amps. Use Value: -3.5 mV/°C temperature coefficient allows predictable offset correction in temperature-compensated analog signal chains. | Use Scenario: DC blocking and level shifting in headphone amplifier outputs and line-driver circuits. IC Role / Device Role / Timing Role: Bidirectional ESD clamp and low-voltage limiter preventing pop-noise and amplifier latch-up during plug insertion. Use Value: 18 pF capacitance at 0 V bias minimizes high-frequency attenuation while maintaining fast transient response to audio signal edges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5223BS-7-F | 2.7 V nominal, ±5% tolerance, 350 mW power rating, SOT-323 package | Higher power handling but looser voltage tolerance; larger footprint (2.0 × 2.1 mm) | Select when higher surge energy absorption is needed and board area permits larger package |
| BZX384-B2V7 | 2.7 V nominal, ±2% tolerance, 300 mW power rating, SOD-323 package | Same voltage accuracy but 50% higher power rating; 1.3 × 1.7 mm footprint | Select when thermal margin is critical and SOD-323 layout compatibility exists |
Compared with BZX585B2V7, MMBZ5223BS-7-F offers greater power robustness but sacrifices voltage precision and board-space efficiency, while BZX384-B2V7 matches tolerance and improves thermal headroom at the cost of increased footprint - making BZX585B2V7 optimal for ultra-dense, precision-limited designs.
Availability
BZX585B2V7 is available at Aetrix Electronics and suitable for portable power management, automotive sensor biasing, and industrial signal conditioning requiring stable component supply, consistent parametric performance, and full RoHS/halogen-free compliance.
Supply support for BZX585B2V7 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 semiconductor manufacturer specializing in discrete devices, analog ICs, and power management solutions for industrial, automotive, and consumer markets.
The BZX585B2V7 belongs to the Small Signal Product family, engineered for high-precision, low-power voltage regulation and protection in miniaturized electronic systems where reliability, thermal resilience, and environmental compliance are mandatory.
FAQ
What is the zener voltage tolerance of BZX585B2V7?
The BZX585B2V7 has a zener voltage tolerance of ±2% at 25°C, with a nominal value of 2.7 V and a specified range of 2.65 V to 2.75 V at 5 mA test current. This tight tolerance is confirmed in the Electrical Characteristics table of the official Taiwan Semiconductor datasheet (Version C1607) and supports precision reference applications where minimal calibration overhead is required. The BZX585B2V7 maintains this specification across its qualified operating temperature range.
Is BZX585B2V7 suitable for lead-free reflow soldering?
Yes, BZX585B2V7 is qualified for lead-free reflow soldering with guaranteed survivability at 260°C for 10 seconds - fully compliant with IPC/JEDEC J-STD-020 moisture sensitivity Level 1 requirements. Its SOD-523F package and halogen-free epoxy meet industry-standard assembly conditions without preconditioning. The BZX585B2V7 datasheet explicitly states this rating, confirming suitability for modern high-temperature reflow profiles used in consumer and automotive electronics manufacturing.
What is the maximum reverse leakage current for BZX585B2V7?
The maximum reverse leakage current for BZX585B2V7 is 1 μA at 1 V reverse voltage and 25°C, as specified in the Electrical Characteristics table. This low leakage supports ultra-low-power operation in battery-backed circuits and sensor bias networks. The BZX585B2V7 maintains sub-microamp leakage even at elevated temperatures, contributing to long-term stability in always-on monitoring applications.
Does BZX585B2V7 have a defined temperature coefficient?
Yes, BZX585B2V7 has a typical temperature coefficient of -3.5 mV/°C at its 5 mA test current, indicating a predictable negative drift in zener voltage with increasing temperature. This value is documented in the Electrical Characteristics table and enables accurate thermal compensation in precision analog designs. The BZX585B2V7's coefficient remains stable across its operational range, distinguishing it from higher-voltage Zeners with positive or near-zero coefficients.
What packaging format is used for BZX585B2V7?
BZX585B2V7 is supplied in 7-inch reels containing 8,000 units per reel, using green compound and marked with "15" as the device code per the ordering information table. The SOD-523F package dimensions are precisely defined: 0.70–0.90 mm length (A), 1.50–1.70 mm width (B), and 0.25–0.40 mm height (C). This packaging ensures automated pick-and-place compatibility and traceable lot control for the BZX585B2V7 in high-volume production.
BZX585B2V7 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):
- 2.7 V
- Tolerance:
- ±2%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 18 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523F
BZX585B2V7 FAQ
1.How can I place an order for BZX585B2V7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX585B2V7 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 BZX585B2V7 reliable?
The price and inventory of BZX585B2V7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX585B2V7 is usually 5 days.
3.What payment methods are accepted for BZX585B2V7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX585B2V7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX585B2V7?
BZX585B2V7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX585B2V7 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 BZX585B2V7?
For technical support, including BZX585B2V7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX585B2V7 requirements.
6.How does Aetrix verify that BZX585B2V7 is sourced from the original manufacturer or authorized distributors?
All BZX585B2V7 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 BZX585B2V7 meets industry standards.
7.What is the process for return or replacement of BZX585B2V7?
All BZX585B2V7 units undergo pre-shipment inspection (PSI). If there is an issue with BZX585B2V7, 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 BZX585B2V7 part is unused and in its original packaging.
Return procedure for BZX585B2V7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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