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Taiwan Semiconductor Corporation BZT52B9V1 RHG
- Part No.:
- BZT52B9V1 RHG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52B9V1 RHG.pdf
- Description:
- DIODE ZENER 9.1V 500MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:5,832
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Product details
Overview
BZT52B9V1 RHG from Taiwan Semiconductor is a surface-mount 9.1 V ±2% tolerance Zener diode in SOD-123F package, rated for 500 mW power dissipation, with 15 Ω dynamic impedance at 5 mA test current and 0.45 μA reverse leakage at 6 V, used for precision voltage regulation and overvoltage protection in low-power analog circuits.
For engineers reviewing the BZT52B9V1 RHG datasheet, BZT52B9V1 RHG pinout, BZT52B9V1 RHG application, or BZT52B9V1 RHG equivalent, key selection criteria include zener voltage tolerance (±2%), thermal resistance (350 °C/W), cathode-band polarity marking, moisture sensitivity level 1, and halogen-free compliance per IEC 61249-2-21.
Technical Context
The BZT52B9V1 RHG operates as a silicon planar junction Zener diode optimized for stable voltage reference and clamping in DC bias networks. Its 9.1 V nominal breakdown voltage is specified at 5 mA (IZT), with dynamic impedance of 15 Ω under that condition and 94 Ω at knee current (IZK = 1 mA).
Designed for surface-mount assembly, it supports lead-free reflow up to 260 °C/10 s and exhibits 8.85 mg typical mass. Reverse leakage remains ≤0.45 μA at VR = 6.0 V, and forward voltage is ≤1.0 V at IF = 10 mA - confirming suitability for bidirectional signal conditioning and low-current reference paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.10 V nominal, ±2% tolerance (8.92–9.28 V), tested at 5 mA pulse - ensures tight regulation in feedback loops |
| Power Dissipation (PD) | 500 mW at TA = 25°C - defines maximum steady-state thermal load without derating |
| Dynamic Impedance (ZZT) | 15 Ω at IZT = 5 mA - indicates low AC impedance for stable reference under varying load |
| Reverse Leakage (IR) | ≤0.45 μA at VR = 6.0 V - confirms minimal parasitic current in high-impedance sensing nodes |
| Thermal Resistance (RθJA) | 350 °C/W - determines junction temperature rise under ambient PCB layout conditions |
| Forward Voltage (VF) | ≤1.0 V at IF = 10 mA - enables use as low-drop rectifier or clamp in dual-direction protection |
| Package | SOD-123F - standardized 3.3–3.9 mm length, 1.5–1.7 mm width, 0.5–0.7 mm height footprint for automated placement |
Pinout & Package
SOD-123F package: flat-lead, single-ended cathode-band marked plastic case; terminals are matte tin-plated with nickel underplate, solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node during forward bias; forms low-VF path with ≤1.0 V drop at 10 mA |
| Cathode | Zener breakdown terminal | Marked by band; referenced to regulated output node; sinks current during reverse breakdown at 9.1 V |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables precise voltage setting without post-assembly trimming in feedback dividers and reference rails |
| Halogen-free construction | Complies with IEC 61249-2-21 - meets environmental requirements for industrial and consumer end equipment |
| Moisture Sensitivity Level 1 | Eliminates bake preconditioning before reflow - reduces manufacturing overhead and handling risk |
| 260°C/10s soldering guarantee | Supports standard lead-free reflow profiles without parametric shift or delamination |
| Pb-free and RoHS-compliant | Meets EU Directive 2011/65/EU and WEEE 2002/96/EC - qualifies for global market deployment |
Applications
| Industrial Sensor Signal Conditioning | USB Port Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing bias voltage for op-amp input stages in 4–20 mA transmitter front-ends operating at 24 V supply. IC Role / Device Role / Timing Role: Zener reference diode providing 9.1 V rail for precision current source and ADC reference buffer. Use Value: ±2% VZ tolerance and 15 Ω ZZT ensure <0.1% output drift across temperature and load variations. |
Use Scenario: Protecting USB 2.0 data lines (D+/D−) against ESD-induced voltage spikes exceeding 6 V. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor configured in back-to-back arrangement with series resistor. Use Value: 0.45 μA IR at 6 V minimizes standby leakage; 1.0 V VF enables fast clamping without signal distortion. |
| Low-Power IoT Node Voltage Reference | Automotive Body Control Module Reset Circuit |
Use Scenario: Generating stable 9.1 V reference for ultra-low-power microcontroller ADC calibration in battery-powered sensor nodes. IC Role / Device Role / Timing Role: Precision shunt regulator supplying reference to internal 12-bit SAR ADC. Use Value: 500 mW PD rating allows operation at 100 μA bias current with >1000-hour lifetime at 85°C ambient. |
Use Scenario: Setting reset threshold for 5 V logic supply in BCM microcontrollers exposed to load-dump transients. IC Role / Device Role / Timing Role: Zener-clamped voltage divider feeding RC delay network to MCU reset pin. Use Value: Cathode-band polarity marking ensures correct orientation during automated optical inspection (AOI) on high-volume SMT lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5240B-7-F (Diodes Inc.) | 9.1 V ±5% tolerance, 350 mW PD, SOT-23 package, 30 Ω ZZT @ 20 mA | Higher tolerance and impedance; smaller SOT-23 footprint but lower power handling | Select when board space is constrained and ±5% regulation suffices |
| BZX584-C9V1 (Nexperia) | 9.1 V ±5%, 300 mW PD, SOD-123 package, 20 Ω ZZT @ 5 mA, AEC-Q200 qualified | Automotive-qualified but wider tolerance; same footprint, lower power rating | Select for automotive-grade designs where AEC-Q200 compliance is mandatory |
Compared with MMBZ5240B-7-F and BZX584-C9V1, the BZT52B9V1 RHG delivers tighter ±2% voltage control and higher 500 mW power capability in identical SOD-123F packaging - making it preferred for industrial instrumentation and precision analog references where regulation accuracy and thermal margin are critical.
Availability
BZT52B9V1 RHG is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB port protection circuits, and low-power IoT voltage references requiring stable component supply, consistent RoHS compliance, and verified SOD-123F mechanical compatibility.
Supply support for BZT52B9V1 RHG 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 device manufacturer headquartered in Hsinchu, Taiwan, specializing in high-reliability small-signal components for industrial, computing, and consumer markets.
The BZT52B9V1 RHG belongs to Taiwan Semiconductor's Small Signal Product line, engineered for precision voltage regulation and transient suppression in space-constrained, thermally demanding PCB environments.
FAQ
What is the zener voltage tolerance of BZT52B9V1 RHG?
The BZT52B9V1 RHG has a nominal zener voltage of 9.10 V with a guaranteed tolerance of ±2%, meaning the actual measured VZ falls between 8.92 V and 9.28 V when tested at IZT = 5 mA under pulse conditions. This tight tolerance is confirmed in the DS_S1405026 datasheet and supports high-accuracy voltage referencing in feedback networks and analog signal chains where drift must be minimized.
Is BZT52B9V1 RHG compatible with lead-free reflow processes?
Yes, the BZT52B9V1 RHG is qualified for high-temperature lead-free reflow with guaranteed performance at 260 °C for 10 seconds, per manufacturer specification. Its matte tin (Sn) lead finish over nickel (Ni) underplate ensures reliable wetting and intermetallic formation during standard JEDEC J-STD-020-compliant profiles - no pre-bake or special handling is required due to its moisture sensitivity level 1 rating.
What is the maximum reverse leakage current for BZT52B9V1 RHG?
The BZT52B9V1 RHG exhibits a maximum reverse leakage current (IR) of 0.45 μA at VR = 6.0 V and TA = 25°C. This value is specified in the Electrical Characteristics table of DS_S1405026 and reflects minimal parasitic conduction in high-impedance bias networks - critical for maintaining accuracy in sensor front-ends and low-power reference circuits where leakage could induce offset errors.
Does BZT52B9V1 RHG have halogen-free certification?
Yes, the BZT52B9V1 RHG is halogen-free in accordance with IEC 61249-2-21, as explicitly stated in the product documentation. The "G" suffix in the part number denotes green compound packaging, and the device complies fully with RoHS Directive 2011/65/EU and WEEE 2002/96/EC - enabling use in environmentally regulated industrial and consumer end products without material declaration concerns.
What package type does BZT52B9V1 RHG use, and what are its dimensions?
The BZT52B9V1 RHG uses the SOD-123F surface-mount package, with mechanical dimensions of 3.3–3.9 mm length (B), 1.5–1.7 mm width (A), and 0.5–0.7 mm height (C). These values are documented in the DS_S1405026 datasheet and align with JEDEC MO-203-AB standards - ensuring compatibility with standard SMT pick-and-place equipment and IPC-7351B land patterns for reliable assembly yield.
BZT52B9V1 RHG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 9.1 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 450 nA @ 6 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT52B9V1 RHG FAQ
1.How can I place an order for BZT52B9V1 RHG through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52B9V1 RHG 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 BZT52B9V1 RHG reliable?
The price and inventory of BZT52B9V1 RHG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52B9V1 RHG is usually 5 days.
3.What payment methods are accepted for BZT52B9V1 RHG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52B9V1 RHG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52B9V1 RHG?
BZT52B9V1 RHG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52B9V1 RHG 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 BZT52B9V1 RHG?
For technical support, including BZT52B9V1 RHG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52B9V1 RHG requirements.
6.How does Aetrix verify that BZT52B9V1 RHG is sourced from the original manufacturer or authorized distributors?
All BZT52B9V1 RHG 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 BZT52B9V1 RHG meets industry standards.
7.What is the process for return or replacement of BZT52B9V1 RHG?
All BZT52B9V1 RHG units undergo pre-shipment inspection (PSI). If there is an issue with BZT52B9V1 RHG, 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 BZT52B9V1 RHG part is unused and in its original packaging.
Return procedure for BZT52B9V1 RHG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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