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Taiwan Semiconductor Corporation BZX585B9V1 RSG
- Part No.:
- BZX585B9V1 RSG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZX585B9V1 RSG.pdf
- Description:
- DIODE ZENER 9.1V 200MW SOD523F
- Quantity:
- Payment:
- Shipping:
Inventory:3,488
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Product details
Overview
BZX585B9V1 RSG from Taiwan Semiconductor is a surface-mount Zener diode with nominal zener voltage 9.1 V (±2%), 200 mW power dissipation, 94 Ω dynamic impedance at 5 mA test current, and SOD-523F package. It provides precision voltage regulation in low-power signal conditioning and reference circuits.
For engineers reviewing the BZX585B9V1 RSG datasheet, BZX585B9V1 RSG pinout, BZX585B9V1 RSG application, or BZX585B9V1 RSG equivalent, key selection criteria include zener tolerance (±2%), thermal resistance (680 °C/W), reverse leakage (0.45 µA at 7.0 V), temperature coefficient (+3.8 mV/°C), and MSL-1 handling capability.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across its terminals under varying load and temperature conditions. Its 2% voltage tolerance and +3.8 mV/°C temperature coefficient enable predictable regulation in biasing and reference applications up to 150 °C junction temperature.
The device features low dynamic impedance (94 Ω @ 5 mA) and minimal capacitance (typ. 1.0 pF at 0 V bias), supporting high-frequency stability in feedback networks and analog sensor interfaces where low noise and fast transient response are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 9.1 V ±2% (tight tolerance enables accurate reference generation) |
| Power Dissipation | 200 mW (supports continuous operation in space-constrained PCB layouts) |
| Dynamic Impedance | 94 Ω @ 5 mA (low impedance ensures stable regulation under small-signal load variations) |
| Reverse Leakage | 0.45 µA @ 7.0 V (minimal leakage preserves accuracy in high-impedance reference nodes) |
| Temperature Coefficient | +3.8 mV/°C (positive coefficient allows predictable drift compensation in temperature-sensitive designs) |
| Thermal Resistance | 680 °C/W (high RθJA reflects SOD-523F's ultra-small thermal mass; requires careful layout for thermal management) |
| Moisture Sensitivity | MSL-1 (no bake required before reflow; supports standard assembly processes) |
Pinout & Package
SOD-523F is a miniature surface-mount plastic package measuring 0.70–0.90 mm (A), 1.50–1.70 mm (B), with cathode marked by a band on the top surface. The device has two terminals: anode and cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reverse breakdown reference ground | Connected to circuit ground or lower-potential node; defines polarity for zener operation |
| Cathode | Zener voltage output terminal / Reverse breakdown anode | Provides regulated 9.1 V output when reverse biased; marked with band on package |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener Tolerance | Enables direct use in precision voltage references without trimming or calibration |
| SOD-523F Package | 0.9 mm × 1.7 mm footprint saves board space in portable and wearables designs |
| Pb-Free & RoHS Compliant | Meets global environmental compliance requirements for consumer and industrial end equipment |
| 260°C/10s Soldering Rating | Withstands standard lead-free reflow profiles without parameter shift or delamination |
| Halogen-Free Construction | Complies with IEC 61249-2-21 for reduced corrosivity and improved fire safety |
Applications
| Portable Sensor Biasing | Low-Power ADC Reference |
|---|---|
Use Scenario: Providing stable bias voltage to MEMS accelerometers and temperature sensors in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Zener voltage reference for analog front-end conditioning circuitry. Use Value: 9.1 V output with ±2% tolerance and +3.8 mV/°C TC ensures consistent sensor excitation across -40°C to +85°C operating range. | Use Scenario: Supplying reference voltage to 12-bit SAR ADCs in handheld medical monitors. IC Role / Device Role / Timing Role: Precision DC reference source for analog-to-digital conversion. Use Value: Low 0.45 µA reverse leakage at 7.0 V minimizes error contribution in high-impedance reference inputs. |
| USB-C Power Negotiation Clamp | Industrial PLC Input Protection |
Use Scenario: Clamping CC line voltage during USB-C port detection and power role negotiation. IC Role / Device Role / Timing Role: Overvoltage protection element limiting CC line to safe logic levels. Use Value: Fast response and 94 Ω dynamic impedance ensure reliable clamping without distorting PD communication waveforms. | Use Scenario: Protecting 24 V digital input channels against transients and ESD in factory automation controllers. IC Role / Device Role / Timing Role: Secondary voltage clamp after primary TVS, improving long-term reliability. Use Value: MSL-1 rating and 260°C solder compatibility support automated manufacturing of ruggedized control modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX585C9V1 RSG | Tolerance ±5% (vs. ±2% for BZX585B9V1 RSG); same SOD-523F package and 9.1 V nominal voltage | Suitable for non-critical biasing where tighter tolerance is not required | Select BZX585B9V1 RSG when ±2% regulation accuracy is mandatory for reference stability |
| MMSZ5240B-TP | ±5% tolerance, 200 mW, SOD-123 package (larger footprint), 9.1 V nominal, 100 Ω Zzt @ 20 mA | Higher power handling margin but less space-efficient; different thermal profile | Choose MMSZ5240B-TP only if board layout accommodates SOD-123 and ±5% tolerance is acceptable |
Compared with BZX585C9V1 RSG and MMSZ5240B-TP, the BZX585B9V1 RSG delivers superior voltage accuracy (±2%) in the smallest possible footprint (SOD-523F), making it optimal for miniaturized, high-precision analog designs where board area and regulation stability are both critical constraints.
Availability
BZX585B9V1 RSG is available at Aetrix Electronics and suitable for portable sensor biasing, low-power ADC reference, and USB-C power negotiation clamp applications requiring stable component supply and full RoHS/halogen-free compliance.
Supply support for BZX585B9V1 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 fabless semiconductor company specializing in discrete devices, offering broad portfolios of diodes, transistors, and rectifiers with strong focus on reliability and manufacturability.
The BZX585B series belongs to Taiwan Semiconductor's Small Signal Product line, designed specifically for precision voltage reference and low-power regulation in compact, high-density PCB environments.
FAQ
What is the zener voltage tolerance of BZX585B9V1 RSG?
The BZX585B9V1 RSG has a zener voltage tolerance of ±2% at 5 mA test current, meaning its actual breakdown voltage falls between 8.92 V and 9.28 V under standard conditions. This tight tolerance makes the BZX585B9V1 RSG suitable for applications demanding high reference accuracy without external trimming.
What package type does BZX585B9V1 RSG use?
The BZX585B9V1 RSG uses the SOD-523F surface-mount package - a miniature plastic case measuring 0.70–0.90 mm in length and 1.50–1.70 mm in width. Its compact size and MSL-1 rating make the BZX585B9V1 RSG ideal for high-density portable electronics assemblies.
Is BZX585B9V1 RSG RoHS and halogen-free compliant?
Yes, the BZX585B9V1 RSG is fully RoHS compliant per Directive 2011/65/EU and halogen-free per IEC 61249-2-21. These certifications are confirmed in the official Taiwan Semiconductor documentation for the BZX585B9V1 RSG and apply to all units shipped under this part number.
What is the maximum junction temperature for BZX585B9V1 RSG?
The BZX585B9V1 RSG has a maximum junction temperature (TJ) of +150°C, allowing reliable operation in thermally demanding environments such as industrial control enclosures or automotive under-hood modules. Derating curves in the BZX585B9V1 RSG datasheet define safe power limits above +25°C ambient.
How does the temperature coefficient affect BZX585B9V1 RSG performance?
The BZX585B9V1 RSG exhibits a positive temperature coefficient of +3.8 mV/°C at 5 mA, meaning its zener voltage increases predictably with rising temperature. This behavior allows designers to compensate for thermal drift in precision reference circuits using complementary components, and is a confirmed specification for the BZX585B9V1 RSG.
BZX585B9V1 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):
- 9.1 V
- Tolerance:
- ±2%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 450 nA @ 6 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523F
BZX585B9V1 RSG FAQ
1.How can I place an order for BZX585B9V1 RSG through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX585B9V1 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 BZX585B9V1 RSG reliable?
The price and inventory of BZX585B9V1 RSG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX585B9V1 RSG is usually 5 days.
3.What payment methods are accepted for BZX585B9V1 RSG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX585B9V1 RSG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX585B9V1 RSG?
BZX585B9V1 RSG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX585B9V1 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 BZX585B9V1 RSG?
For technical support, including BZX585B9V1 RSG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX585B9V1 RSG requirements.
6.How does Aetrix verify that BZX585B9V1 RSG is sourced from the original manufacturer or authorized distributors?
All BZX585B9V1 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 BZX585B9V1 RSG meets industry standards.
7.What is the process for return or replacement of BZX585B9V1 RSG?
All BZX585B9V1 RSG units undergo pre-shipment inspection (PSI). If there is an issue with BZX585B9V1 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 BZX585B9V1 RSG part is unused and in its original packaging.
Return procedure for BZX585B9V1 RSG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX585B9V1 RSG Tags
-
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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