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Taiwan Semiconductor Corporation BZX584B4V3 RSG
- Part No.:
- BZX584B4V3 RSG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX584B4V3 RSG.pdf
- Description:
- DIODE ZENER 4.3V 150MW SOD523F
- Quantity:
- Payment:
- Shipping:
Inventory:15,990
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Product details
Overview
BZX584B4V3 RSG from Taiwan Semiconductor is a surface-mount Zener diode with 4.3 V nominal zener voltage, ±2% tolerance, 150 mW power dissipation, and SOD-523F package. It provides precise voltage regulation in low-power signal conditioning and reference circuits, such as sensor biasing and analog front-end protection.
For engineers reviewing the BZX584B4V3 RSG datasheet, BZX584B4V3 RSG pinout, BZX584B4V3 RSG application, or BZX584B4V3 RSG equivalent, key selection criteria include zener voltage accuracy at 5 mA test current, low dynamic impedance (90 Ω), cathode-band polarity marking, and moisture sensitivity level 1 compliance for reflow compatibility.
Technical Context
The BZX584B4V3 RSG operates as a single-die, unidirectional voltage reference device optimized for stable reverse-bias breakdown at 4.3 V. Its thermal resistance (RθJA = 833 °C/W) and junction temperature range (–55 to +150 °C) support reliable operation in compact, thermally constrained PCB layouts.
Designed for low-current regulation, it delivers 3 µA maximum leakage at 1.0 V reverse bias and –3.5 mV/°C temperature coefficient, enabling predictable drift behavior in ambient-temperature-varying environments without active compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.21–4.39 V at 5 mA test current - ensures tight regulation window for 3.3 V rail referencing |
| Power Dissipation (PD) | 150 mW - limits continuous current to ~35 mA at 4.3 V, suitable for micro-power bias networks |
| Zener Impedance (ZZT) | 90 Ω max at 5 mA - maintains voltage stability under small-signal load variations |
| Leakage Current (IR) | 3 µA max at 1.0 V - minimizes parasitic current draw in high-impedance sensing nodes |
| Temperature Coefficient | –3.5 mV/°C - enables predictable downward drift for temperature-aware calibration schemes |
| Junction Temperature Range | –55 to +150 °C - supports industrial and automotive under-hood applications without derating |
Pinout & Package
Package: SOD-523F - ultra-small outline diode with matte tin-plated leads, 1.30 mg weight, and UL 94V-0 molding compound. Cathode indicated by band; polarity critical for correct reverse-bias operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node | Connected to circuit common when used in shunt regulation; must be held at lower potential than cathode |
| Cathode | Zener breakdown terminal / Regulated output node | Connected to regulated voltage point; band marking identifies this terminal on PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Reduces need for post-production trimming in precision reference designs |
| SOD-523F package with level 1 moisture sensitivity | Enables standard JEDEC J-STD-020-compliant reflow without baking or special handling |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21 and environmental requirements for consumer and industrial end equipment |
| 150 mW power rating with 833 °C/W thermal resistance | Supports thermal design in dense layouts where airflow and copper area are limited |
Applications
| Industrial Sensor Biasing | USB Port ESD Protection Clamp |
|---|---|
Use Scenario: Providing stable 4.3 V bias to MEMS pressure sensor bridge circuitry in factory automation modules. IC Role / Device Role / Timing Role: Shunt voltage reference maintaining excitation voltage within ±0.1 V across temperature. Use Value: Enables <1% full-scale error in analog output without external DAC or op-amp feedback. |
Use Scenario: Clamping transient overvoltage on USB D+ line during hot-plug events in embedded host controllers. IC Role / Device Role / Timing Role: Low-capacitance (typ. <2 pF) Zener clamp absorbing ESD pulses while preserving signal integrity. Use Value: Prevents latch-up in USB PHY without degrading 480 Mbps data eye margin. |
| Low-Power MCU Reset Circuit | Automotive Cabin Control Panel Reference |
Use Scenario: Generating clean reset threshold for ARM Cortex-M0+ microcontrollers operating from 3.3 V supply. IC Role / Device Role / Timing Role: Precision voltage detector feeding RC delay network into reset input. Use Value: Guarantees deterministic reset assertion at 4.3 V ±2%, independent of supply ramp rate. |
Use Scenario: Supplying stable reference to 12-bit ADC measuring HVAC actuator position feedback. IC Role / Device Role / Timing Role: Temperature-compensated voltage reference minimizing offset drift over –40 to +85 °C. Use Value: Reduces calibration frequency from quarterly to annual in production test flow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5227BS-7-F (Diodes Inc.) | 4.3 V nominal, ±5% tolerance, 200 mW rating, SOD-523 package | Higher power and looser tolerance; less suitable for precision biasing | Select when higher surge energy handling is required and voltage accuracy is secondary |
| BZX584C4V3 RSG (Taiwan Semiconductor) | Same SOD-523F package but ±5% tolerance (vs. ±2% for BZX584B4V3 RSG) | Lower cost alternative where tighter regulation is not required | Choose for cost-sensitive consumer applications with relaxed voltage stability specs |
Compared with MMBZ5227BS-7-F and BZX584C4V3 RSG, the BZX584B4V3 RSG offers superior voltage accuracy and tighter thermal coefficient control, making it preferred for analog signal chains where reference stability directly impacts measurement fidelity.
Availability
BZX584B4V3 RSG is available at Aetrix Electronics and suitable for industrial sensor biasing, USB port clamping, and low-power MCU reset circuits requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.
Supply support for BZX584B4V3 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 Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, analog ICs, and protection components for industrial and automotive markets.
The BZX584 series was developed to deliver high-precision, low-profile Zener regulation for space-constrained PCBs in battery-powered and thermally sensitive systems.
FAQ
What is the zener voltage tolerance of BZX584B4V3 RSG?
The BZX584B4V3 RSG has a zener voltage tolerance of ±2% at 5 mA test current, with a specified range of 4.21 V to 4.39 V. This tight tolerance is confirmed in the Electrical Specifications table of the official Taiwan Semiconductor datasheet (Version D2007). The BZX584B4V3 RSG achieves this via laser-trimmed wafer-level process control, distinguishing it from wider-tolerance variants like the BZX584C4V3 RSG.
Is BZX584B4V3 RSG compatible with lead-free reflow soldering?
Yes, the BZX584B4V3 RSG is fully compatible with lead-free reflow soldering per J-STD-020. Its SOD-523F package carries moisture sensitivity level 1 rating, meaning it can be stored indefinitely at ≤30 °C/60% RH and placed directly into standard Pb-free reflow profiles without pre-baking. The matte tin-plated leads meet J-STD-002 solderability requirements, ensuring robust wetting and joint reliability for BZX584B4V3 RSG assembly.
What is the maximum leakage current for BZX584B4V3 RSG at 1.0 V reverse bias?
The maximum leakage current for BZX584B4V3 RSG at 1.0 V reverse bias is 3 µA, as specified in the Electrical Specifications table under "Leakage Current (IR @ VR)". This value is measured at TA = 25 °C and applies across the full production lot. The low leakage supports use in high-impedance nodes where parasitic current would otherwise degrade BZX584B4V3 RSG system accuracy.
Does BZX584B4V3 RSG have a defined temperature coefficient?
Yes, the BZX584B4V3 RSG has a typical temperature coefficient of –3.5 mV/°C, measured at 5 mA test current. This negative coefficient is consistent across the BZX584B2V4–BZX584B75 family and reflects the silicon physics of its low-voltage Zener structure. Designers using BZX584B4V3 RSG in temperature-varying environments can model voltage drift linearly using this coefficient for calibration compensation.
What packaging option is available for BZX584B4V3 RSG?
The BZX584B4V3 RSG is supplied in 8,000-piece 7-inch reels, as specified in the Ordering Information section of the Taiwan Semiconductor datasheet. This tape-and-reel format supports automated SMT placement and is compatible with standard pick-and-place feeders. No other packaging formats (e.g., cut tape or tube) are listed for BZX584B4V3 RSG in official documentation.
BZX584B4V3 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):
- 4.3 V
- Tolerance:
- ±2%
- Power - Max:
- 150 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 1 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:
- SOD-523F
BZX584B4V3 RSG FAQ
1.How can I place an order for BZX584B4V3 RSG through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX584B4V3 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 BZX584B4V3 RSG reliable?
The price and inventory of BZX584B4V3 RSG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX584B4V3 RSG is usually 5 days.
3.What payment methods are accepted for BZX584B4V3 RSG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX584B4V3 RSG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX584B4V3 RSG?
BZX584B4V3 RSG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX584B4V3 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 BZX584B4V3 RSG?
For technical support, including BZX584B4V3 RSG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX584B4V3 RSG requirements.
6.How does Aetrix verify that BZX584B4V3 RSG is sourced from the original manufacturer or authorized distributors?
All BZX584B4V3 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 BZX584B4V3 RSG meets industry standards.
7.What is the process for return or replacement of BZX584B4V3 RSG?
All BZX584B4V3 RSG units undergo pre-shipment inspection (PSI). If there is an issue with BZX584B4V3 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 BZX584B4V3 RSG part is unused and in its original packaging.
Return procedure for BZX584B4V3 RSG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX584B4V3 RSG Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZT52C15-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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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
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SMAZ12-13-F
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