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Taiwan Semiconductor Corporation BZT52B5V1-G RHG
- Part No.:
- BZT52B5V1-G RHG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52B5V1-G RHG.pdf
- Description:
- DIODE ZENER 5.1V 410MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
BZT52B5V1-G from Taiwan Semiconductor is a 5.1 V ±2% tolerance Zener diode in SOD-123 package, rated for 410 mW total power dissipation, with 60 Ω dynamic impedance at 5 mA test current and -2.7 mV/°C temperature coefficient-used as a precision voltage reference in low-power DC/DC converters and adapter circuits.
For engineers reviewing the BZT52B5V1-G datasheet, BZT52B5V1-G pinout, BZT52B5V1-G application, or BZT52B5V1-G equivalent, key selection criteria include zener voltage tolerance (±2%), thermal resistance (357 °C/W), leakage current (≤2 µA at 2.0 V), and SOD-123 mechanical compatibility with high-density PCB layouts.
Technical Context
This device operates as a single-die, surface-mount Zener diode optimized for stable voltage regulation under reverse-bias conditions. It delivers nominal 5.1 V breakdown at 5 mA (IZT), with low dynamic impedance (60 Ω) ensuring minimal output variation across load changes.
Its -2.7 mV/°C temperature coefficient enables predictable drift compensation in ambient-temperature-sensitive references, while the 357 °C/W junction-to-ambient thermal resistance defines maximum allowable power derating above 25°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.00–5.20 V at 5 mA - ensures tight 5.1 V reference with ±2% tolerance for stable feedback loops |
| Dynamic Impedance (ZZT) | 60 Ω at 5 mA - maintains low output impedance for effective ripple suppression in regulator shunt paths |
| Power Dissipation (Ptot) | 410 mW - supports continuous operation up to 25°C ambient without heatsinking |
| Leakage Current (IR) | ≤2 µA at VR = 2.0 V - minimizes standby power loss in battery-powered voltage monitor circuits |
| Temp. Coefficient (TCVZ) | -2.7 mV/°C - enables predictable voltage drift correction in industrial temperature ranges (-55°C to +150°C) |
| Junction Temp. Range | -55°C to +150°C - qualified for automotive under-hood and industrial control environments |
| Forward Voltage (VF) | 0.9 V at IF = 10 mA - allows use as forward-biased clamp or dual-purpose protection element |
Pinout & Package
Package: SOD-123 - surface-mount plastic case with matte tin-plated leads, moisture sensitivity level 1 (J-STD-020), weight ≈10.54 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / cathode-referenced shunt path input | Connected to lower-potential node in Zener configuration; enables standard reverse-bias voltage regulation |
| Cathode | Zener breakdown terminal / reference output node | Marked by band; supplies regulated 5.1 V when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| ±2% Zener voltage tolerance | Enables direct replacement in precision feedback networks without recalibration of resistor dividers |
| SOD-123 package with J-STD-002 solderability | Supports automated reflow assembly and IPC-A-610 Class 2/3 compliance in high-volume production |
| RoHS-compliant & halogen-free (IEC 61249-2-21) | Meets global environmental regulations for consumer, industrial, and telecom end-equipment |
| Low leakage (≤2 µA @ 2.0 V) | Reduces quiescent current in always-on voltage supervision circuits, extending battery life |
Applications
| Adapter Power Supply | On-board DC/DC Converter |
|---|---|
Use Scenario: Secondary-side voltage sensing and feedback in wall-adapters with isolated flyback topology. IC Role / Device Role / Timing Role: Zener reference diode providing stable 5.1 V threshold for optocoupler-driven feedback loop. Use Value: Tight ±2% tolerance ensures consistent output regulation across line/load variations without trimming. | Use Scenario: Output voltage reference in non-isolated buck converter modules for microcontroller power rails. IC Role / Device Role / Timing Role: Shunt regulator establishing precise 5.1 V reference for error amplifier input. Use Value: 60 Ω dynamic impedance minimizes output voltage deviation during transient load steps. |
| Low-Voltage Stabilizer | Voltage Monitor Circuit |
Use Scenario: Local 5.1 V stabilization for analog sensor signal conditioning stages. IC Role / Device Role / Timing Role: Passive shunt regulator maintaining clean bias voltage for op-amps and ADC references. Use Value: -2.7 mV/°C tempco allows predictable drift compensation in temperature-critical measurement systems. | Use Scenario: Undervoltage lockout (UVLO) threshold detection in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Precision voltage threshold detector using reverse-bias breakdown as trip point. Use Value: ≤2 µA leakage at 2.0 V ensures negligible current draw during sleep mode, preserving battery charge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5221B-7-F | Same 5.1 V nominal, ±5% tolerance, 225 mW rating, SOT-23 package | Lower power rating and wider tolerance limit use in non-critical references | Select when board space permits SOT-23 and ±5% accuracy suffices for cost-sensitive designs |
| 1N4733A | 5.1 V nominal, ±5%, 1 W rating, DO-41 through-hole package | Higher power handling but incompatible with SMD-only layouts and lacks RoHS/halogen-free compliance | Choose only for legacy through-hole assemblies requiring >410 mW dissipation |
Compared with MMBZ5221B-7-F and 1N4733A, the BZT52B5V1-G offers superior voltage accuracy (±2% vs. ±5%), higher power density in SOD-123, and full environmental compliance-making it optimal for modern compact, regulated power designs where precision and manufacturability are critical.
Availability
BZT52B5V1-G is available at Aetrix Electronics and suitable for adapter power supplies, on-board DC/DC converters, and low-voltage stabilizers requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.
Supply support for BZT52B5V1-G 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 BZT52B series is part of TSC's precision Zener diode product line, engineered for high-accuracy voltage referencing in space-constrained, high-reliability power management applications.
FAQ
What is the exact zener voltage range and tolerance for BZT52B5V1-G?
The BZT52B5V1-G has a guaranteed zener voltage range of 5.00 V to 5.20 V at 5 mA test current, corresponding to a nominal 5.1 V value with ±2% tolerance per the manufacturer's electrical specifications. This tight tolerance is confirmed in the "ELECTRICAL SPECIFICATIONS" table on page 2 of the official datasheet revision H2002.
What is the maximum power dissipation and thermal resistance of BZT52B5V1-G?
The BZT52B5V1-G is rated for 410 mW total power dissipation at 25°C ambient and exhibits a junction-to-ambient thermal resistance (RθJA) of 357 °C/W. These values define its safe operating area and require derating linearly above 25°C-e.g., ~300 mW at 75°C ambient-per the Power Dissipation Curve in the datasheet.
Is BZT52B5V1-G compatible with lead-free reflow soldering processes?
Yes, the BZT52B5V1-G features matte tin-plated leads qualified per J-STD-002 for solderability and is rated for moisture sensitivity level 1 (MSL-1) per J-STD-020, making it fully compatible with standard lead-free reflow profiles without baking or special handling requirements.
What is the leakage current specification for BZT52B5V1-G at 2.0 V reverse voltage?
The BZT52B5V1-G specifies a maximum leakage current (IR) of 2 µA at VR = 2.0 V, measured at 25°C ambient. This low leakage supports energy-efficient operation in always-on monitoring and battery-backed circuits where standby current must be minimized.
Does BZT52B5V1-G have a specified temperature coefficient, and what is its value?
Yes, the BZT52B5V1-G has a typical temperature coefficient (TCVZ) of -2.7 mV/°C at 5 mA test current. This negative coefficient indicates that its zener voltage decreases slightly with rising temperature-a key parameter for stability analysis in wide-temperature-range applications.
BZT52B5V1-G RHG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.1 V
- Tolerance:
- ±2%
- Power - Max:
- 410 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 2 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-123
BZT52B5V1-G RHG FAQ
1.How can I place an order for BZT52B5V1-G RHG through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52B5V1-G 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 BZT52B5V1-G RHG reliable?
The price and inventory of BZT52B5V1-G RHG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52B5V1-G RHG is usually 5 days.
3.What payment methods are accepted for BZT52B5V1-G RHG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52B5V1-G RHG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52B5V1-G RHG?
BZT52B5V1-G RHG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52B5V1-G 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 BZT52B5V1-G RHG?
For technical support, including BZT52B5V1-G RHG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52B5V1-G RHG requirements.
6.How does Aetrix verify that BZT52B5V1-G RHG is sourced from the original manufacturer or authorized distributors?
All BZT52B5V1-G 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 BZT52B5V1-G RHG meets industry standards.
7.What is the process for return or replacement of BZT52B5V1-G RHG?
All BZT52B5V1-G RHG units undergo pre-shipment inspection (PSI). If there is an issue with BZT52B5V1-G 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 BZT52B5V1-G RHG part is unused and in its original packaging.
Return procedure for BZT52B5V1-G RHG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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