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Taiwan Semiconductor Corporation BZX584B30 RSG
- Part No.:
- BZX584B30 RSG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX584B30 RSG.pdf
- Description:
- DIODE ZENER 30V 150MW SOD523F
- Quantity:
- Payment:
- Shipping:
Inventory:7,900
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Product details
Overview
BZX584B30 RSG from Taiwan Semiconductor is a surface-mount Zener diode with nominal zener voltage 30.0 V, ±2% tolerance, 150 mW power dissipation, and SOD-523F package. It provides precise voltage regulation in low-power analog and digital supply rails, including sensor biasing, reference voltage generation, and overvoltage clamping in portable electronics.
For engineers reviewing the BZX584B30 RSG datasheet, BZX584B30 RSG pinout, BZX584B30 RSG application, or BZX584B30 RSG equivalent, key selection criteria include its 30 V nominal zener voltage at 2 mA test current, 80 Ω typical zener impedance at IZT, -2.0 mV/°C temperature coefficient, and SOD-523F footprint compatibility with space-constrained PCB layouts.
Technical Context
The BZX584B30 RSG operates as a single-die, cathode-banded Zener diode optimized for stable reverse-breakdown regulation under low-current conditions (IZT = 2 mA). Its thermal resistance of 833 °C/W and junction temperature range of –55 °C to +150 °C support reliable operation in ambient temperatures up to +100 °C with derated power.
Designed for SMD assembly per J-STD-002, it features matte tin-plated leads, meets JESD201 Class 1A whisker resistance, and complies with RoHS and IEC 61249-2-21 halogen-free requirements. Polarity is marked by a visible cathode band on the SOD-523F case.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 29.4 V min / 30.0 V nom / 30.6 V max at IZT = 2 mA - ensures tight regulation window for 30 V reference designs |
| Power Dissipation (PD) | 150 mW - limits continuous current to ~5 mA at 30 V, suitable for low-power biasing and protection |
| Zener Impedance (ZZT) | 80 Ω typical at IZT = 2 mA - defines voltage stability under small-signal load variations |
| Temperature Coefficient | –2.0 mV/°C - enables predictable drift compensation in temperature-sensitive references |
| Junction Temperature Range | –55 °C to +150 °C - supports industrial and automotive under-hood applications with thermal margin |
| Leakage Current (IR) | 0.1 µA max at VR = 24.4 V - ensures minimal standby current in high-impedance sensing nodes |
| Package | SOD-523F - 1.2 × 0.8 × 0.6 mm outline, compatible with 0402-class reflow profiles and automated placement |
Pinout & Package
Package: SOD-523F - ultra-small plastic surface-mount case with cathode band marking; dimensions 1.2 mm × 0.8 mm × 0.6 mm; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to lower-potential node; forms regulated output when cathode is biased above anode |
| Cathode | Zener breakdown terminal / voltage reference output | Marked by band; supplies stable 30 V relative to anode when reverse-biased ≥24.4 V |
Key Features
| Feature | Design Value |
|---|---|
| ±2% zener voltage tolerance | Reduces need for post-production trimming in precision reference circuits |
| SOD-523F package | Enables high-density layout in wearables, IoT sensors, and compact power management modules |
| 150 mW power rating | Supports self-heating-limited operation without heatsinking in ambient ≤100 °C |
| –2.0 mV/°C tempco | Allows predictable offset correction in temperature-compensated voltage monitors |
| RoHS & halogen-free compliance | Fulfills environmental requirements for consumer, industrial, and medical-grade end equipment |
Applications
| Portable Sensor Biasing | Low-Power Reference Generation |
|---|---|
Use Scenario: Providing stable bias voltage to MEMS accelerometers and analog front-end op-amps in battery-powered wearables. IC Role / Device Role / Timing Role: Zener voltage reference source for signal conditioning circuitry. Use Value: 30 V nominal output with <0.6 V total tolerance ensures consistent sensor full-scale range across production units. |
Use Scenario: Generating a fixed 30 V reference for ADC input scaling in handheld test equipment. IC Role / Device Role / Timing Role: Precision DC voltage clamp and regulator in analog signal chain. Use Value: Low 80 Ω zener impedance minimizes reference voltage shift under varying load currents up to 100 µA. |
| Overvoltage Clamping | Microcontroller I/O Protection |
Use Scenario: Protecting 24 V industrial control inputs against transient surges exceeding 30 V. IC Role / Device Role / Timing Role: Reverse-biased shunt clamp limiting rail voltage during ESD or inductive kick events. Use Value: Fast response to >24.4 V reverse transients with leakage <0.1 µA below clamping threshold. |
Use Scenario: Safeguarding 3.3 V MCU GPIO pins from accidental 24–30 V miswiring in field-deployed devices. IC Role / Device Role / Timing Role: Input-level voltage limiter placed between connector and microcontroller pin. Use Value: SOD-523F footprint allows direct placement adjacent to MCU pads without routing detours. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5260BS-7-F | 30 V nominal, ±5% tolerance, 200 mW PD, SOT-323 package | Larger footprint (2.2 × 1.35 mm), higher power, looser tolerance | Preferred where board space permits and tighter thermal margin is needed |
| BZX384-C30,115 | 30 V nominal, ±5% tolerance, 300 mW PD, SOD-323 package | Higher power, larger case (1.7 × 1.25 mm), different thermal resistance (450 °C/W) | Selected when >150 mW clamping energy is required in non-space-constrained designs |
Compared with BZX584B30 RSG, MMBZ5260BS-7-F offers higher power but looser voltage tolerance and larger size, while BZX384-C30,115 delivers triple the power rating at the cost of 2.5× footprint area-making BZX584B30 RSG optimal for miniaturized, precision-regulated 30 V nodes.
Availability
BZX584B30 RSG is available at Aetrix Electronics and suitable for portable sensor biasing, low-power reference generation, and overvoltage clamping requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.
Supply support for BZX584B30 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, computing, and consumer markets.
The BZX584B series is part of TSC's precision Zener diode portfolio designed specifically for space-constrained, low-power voltage regulation and clamping in portable and IoT edge devices.
FAQ
What is the zener voltage tolerance of BZX584B30 RSG?
The BZX584B30 RSG has a zener voltage tolerance of ±2% at 30.0 V nominal, meaning its actual breakdown voltage falls between 29.4 V and 30.6 V when tested at IZT = 2 mA. This tight tolerance eliminates the need for calibration in many reference applications and ensures consistent performance across production batches of BZX584B30 RSG units.
What is the maximum power dissipation for BZX584B30 RSG?
The BZX584B30 RSG has a maximum power dissipation (PD) of 150 mW at TA = 25°C. Derating is required above 25°C ambient, with junction-to-ambient thermal resistance of 833 °C/W. At 100°C ambient, the usable power drops to approximately 90 mW. This rating directly constrains the maximum continuous reverse current to ~3 mA at 30 V in typical PCB layouts using BZX584B30 RSG.
Does BZX584B30 RSG have a specified temperature coefficient?
Yes, the BZX584B30 RSG has a typical temperature coefficient of –2.0 mV/°C, measured at IZTC = 5 mA. This negative coefficient indicates that its zener voltage decreases slightly with rising temperature, enabling predictable drift behavior in temperature-compensated circuits. The value is confirmed in the Electrical Specifications table for the BZX584B30 RSG variant.
What package type is used for BZX584B30 RSG?
The BZX584B30 RSG uses the SOD-523F surface-mount package: a miniature plastic case measuring 1.2 mm × 0.8 mm × 0.6 mm with a cathode band marking polarity. It is rated moisture sensitivity level 1 per J-STD-020 and features matte tin-plated leads compliant with J-STD-002 solderability standards-key attributes for high-yield assembly of BZX584B30 RSG in automated SMT lines.
Is BZX584B30 RSG RoHS and halogen-free compliant?
Yes, BZX584B30 RSG is fully RoHS compliant and halogen-free per IEC 61249-2-21. These compliance statements are explicitly documented in the official Taiwan Semiconductor datasheet revision D2007 for the BZX584B30 RSG and all variants in the BZX584B2V4–BZX584B75 family. No exemptions or exceptions apply to the BZX584B30 RSG device.
BZX584B30 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):
- 30 V
- Tolerance:
- ±2%
- Power - Max:
- 150 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 21 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
BZX584B30 RSG FAQ
1.How can I place an order for BZX584B30 RSG through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX584B30 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 BZX584B30 RSG reliable?
The price and inventory of BZX584B30 RSG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX584B30 RSG is usually 5 days.
3.What payment methods are accepted for BZX584B30 RSG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX584B30 RSG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX584B30 RSG?
BZX584B30 RSG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX584B30 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 BZX584B30 RSG?
For technical support, including BZX584B30 RSG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX584B30 RSG requirements.
6.How does Aetrix verify that BZX584B30 RSG is sourced from the original manufacturer or authorized distributors?
All BZX584B30 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 BZX584B30 RSG meets industry standards.
7.What is the process for return or replacement of BZX584B30 RSG?
All BZX584B30 RSG units undergo pre-shipment inspection (PSI). If there is an issue with BZX584B30 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 BZX584B30 RSG part is unused and in its original packaging.
Return procedure for BZX584B30 RSG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX584B30 RSG Tags
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MMSZ5231B-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
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onsemi
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BZT52C15S-7-F
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MM5Z5V1ST1G
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SMAJ4744A-TP
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SMAZ12-13-F
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