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Taiwan Semiconductor Corporation BZT52C30-G RHG
- Part No.:
- BZT52C30-G RHG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C30-G RHG.pdf
- Description:
- DIODE ZENER 30V 350MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
BZT52C30-G RHG from Taiwan Semiconductor is a surface-mount 30 V ±5% Zener diode in SOD-123 package, rated for 350 mW power dissipation and 2 mA zener test current, with 80 Ω dynamic impedance at IZT and 0.1 µA leakage at 21.0 V reverse bias - used for precision voltage regulation in low-power analog circuits and reference supply rails.
For engineers reviewing the BZT52C30-G RHG datasheet, BZT52C30-G RHG pinout, BZT52C30-G RHG application, or BZT52C30-G RHG equivalent, key selection criteria include its 30 V nominal zener voltage with tight 5% tolerance, SOD-123 footprint compatibility, 150°C maximum junction temperature, and verified thermal resistance of 357°C/W for board-level thermal design validation.
Technical Context
The BZT52C30-G RHG operates as a single-die, cathode-banded Zener diode optimized for stable reverse-breakdown regulation under DC or low-frequency transient conditions. Its 2 mA zener test current and 80 Ω dynamic impedance ensure predictable clamping behavior near nominal voltage, while the -55°C to +150°C operating range supports industrial ambient environments.
Designed for surface-mount assembly per J-STD-002 solderability standards, it features matte tin-plated leads, meets JESD 201 Class 1A whisker resistance, and complies with RoHS and IEC 61249-2-21 halogen-free requirements - confirming suitability for automated reflow and high-reliability PCB production.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 28.0–32.0 V @ IZT = 2 mA - defines precise regulation point with ±5% tolerance for stable reference generation |
| Power Dissipation (PD) | 350 mW - sets maximum continuous DC power handling without derating at 25°C ambient |
| Zener Impedance (ZZT) | 80 Ω @ IZT = 2 mA - determines output voltage variation under load changes in regulation circuits |
| Leakage Current (IR) | 0.1 µA @ VR = 21.0 V - ensures minimal standby current in battery-powered or high-impedance bias networks |
| Junction Temperature (TJ) | -55°C to +150°C - enables operation in extended industrial and automotive under-hood environments |
| Thermal Resistance (RθJA) | 357°C/W - quantifies junction-to-ambient heat transfer for PCB copper area and airflow planning |
| Forward Voltage (VF) | 0.9 V @ IF = 10 mA - specifies conduction drop when used in forward-biased protection or clamping paths |
Pinout & Package
Package: SOD-123 - surface-mount plastic case with cathode band marking; dimensions per Taiwan Semiconductor drawing; weight ≈10.55 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / reverse breakdown reference node | Connected to lower-potential rail in regulation or clamp configuration; defines polarity-sensitive mounting orientation |
| Cathode | Reverse breakdown terminal / regulated output node | Marked by visible band; supplies stable 30 V reference when biased above VZ; must be held at higher potential than anode |
Key Features
| Feature | Design Value |
|---|---|
| 5% Zener voltage tolerance | Enables accurate voltage referencing without post-production trimming in cost-sensitive designs |
| SOD-123 package with level 1 moisture sensitivity | Supports standard reflow profiles without baking, reducing manufacturing overhead and floor-life constraints |
| RoHS and halogen-free compliance | Meets global environmental directives for consumer, industrial, and automotive electronics shipments |
| 150°C maximum junction temperature | Allows deployment in thermally demanding locations such as power supply feedback loops or sensor front-ends |
| Matte tin-plated leads per J-STD-002 | Ensures consistent solder wetting and joint reliability across lead-free and SnPb assembly processes |
Applications
| Industrial Sensor Signal Conditioning | Low-Power Microcontroller Reference Supply |
|---|---|
Use Scenario: Stabilizing ADC reference voltage in 4–20 mA loop-powered temperature transmitters operating at 24 V supply. IC Role / Device Role / Timing Role: Zener diode providing 30 V regulated rail for op-amp biasing and precision voltage division. Use Value: Tight 5% VZ tolerance and low 0.1 µA leakage maintain measurement accuracy over -40°C to +85°C ambient. |
Use Scenario: Generating clean 3.3 V logic supply via resistor-Zener dropper for ultra-low-cost IoT node MCU during sleep mode. IC Role / Device Role / Timing Role: Passive voltage regulator replacing LDO where quiescent current minimization is critical. Use Value: 350 mW rating and 0.9 V forward drop allow efficient use in series-dropper topologies with minimal thermal impact. |
| Automotive Body Control Module Clamp | Consumer Audio Equipment Protection |
Use Scenario: Suppressing load-dump transients on 12 V CAN bus power lines in vehicle door modules. IC Role / Device Role / Timing Role: Reverse-biased Zener clamping device limiting voltage spikes to ≤32 V during ISO 7637-2 pulse 5a events. Use Value: 80 Ω dynamic impedance and 2 mA test current ensure fast response and repeatable clamping threshold under surge conditions. |
Use Scenario: Protecting headphone amplifier inputs from ESD-induced overvoltage in portable Bluetooth speakers. IC Role / Device Role / Timing Role: Low-capacitance (<10 pF typical) shunt protector diverting transient energy to ground. Use Value: SOD-123 footprint and 10.55 mg mass enable compact placement near connectors without board space penalty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5261B-7-F (Diodes Inc.) | 30 V nominal, ±5%, 200 mW PD, 100 Ω ZZT @ 2 mA | Lower power rating limits use in sustained regulation; better suited for transient suppression only | Select when lower thermal mass or tighter stock availability outweighs 150 mW derating margin |
| SZBZX84-C30LT1G (onsemi) | 30 V nominal, ±5%, 300 mW PD, 90 Ω ZZT @ 2 mA, SOT-23 package | Larger footprint and different pad layout require PCB redesign; higher thermal resistance (400°C/W) | Choose only if SOT-23 is standardized across existing BOM and thermal budget permits 50 mW reduction |
Compared with MMBZ5261B-7-F and SZBZX84-C30LT1G, the BZT52C30-G RHG delivers 350 mW power handling and 357°C/W thermal resistance in SOD-123 - making it optimal for continuous regulation where thermal margin and long-term stability are prioritized over footprint miniaturization.
Availability
BZT52C30-G RHG is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, low-power microcontroller reference supply, and automotive body control module clamp applications requiring stable component supply and full traceability.
Supply support for BZT52C30-G 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 Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, analog ICs, and protection components for industrial and automotive markets.
The BZT52C series is part of TSC's general-purpose Zener diode product line, engineered for high-volume, cost-effective voltage regulation and transient suppression in surface-mount applications with stringent environmental compliance requirements.
FAQ
What is the exact zener voltage range specified for BZT52C30-G RHG?
The BZT52C30-G RHG has a guaranteed zener voltage range of 28.0 V to 32.0 V at a test current of 2 mA, corresponding to a nominal 30 V rating with ±5% tolerance per the Taiwan Semiconductor datasheet revision C2007. This range is measured under standard 25°C ambient conditions and defines the device's regulation window for circuit design validation.
Does BZT52C30-G RHG support lead-free reflow soldering?
Yes, BZT52C30-G RHG features matte tin-plated leads qualified per J-STD-002 for solderability and is rated at moisture sensitivity level 1 per J-STD-020 - meaning it can undergo standard lead-free reflow profiles (e.g., JEDEC J-STD-020 Class 3 peak of 260°C) without pre-baking or special handling.
What is the maximum allowable reverse leakage current for BZT52C30-G RHG?
The maximum reverse leakage current for BZT52C30-G RHG is 0.1 µA at a reverse voltage of 21.0 V, as specified in the electrical characteristics table. This value is confirmed at 25°C ambient and reflects the device's ability to minimize standby power loss in high-impedance bias networks.
Can BZT52C30-G RHG be used in place of a 33 V Zener diode?
No - BZT52C30-G RHG is specifically rated for 30 V nominal zener voltage (28.0–32.0 V range); substituting it for a 33 V device (e.g., BZT52C33-G) would result in undershoot of the target regulation point by up to 3 V under worst-case tolerance, potentially compromising circuit functionality or safety margins.
What is the thermal resistance from junction to ambient for BZT52C30-G RHG?
The junction-to-ambient thermal resistance (RθJA) for BZT52C30-G RHG is 357°C/W, measured on a standard FR-4 PCB with minimum copper pad area per the SOD-123 outline. This value is critical for calculating actual junction temperature rise under operating power dissipation and verifying safe thermal margins.
BZT52C30-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):
- 30 V
- Tolerance:
- ±5%
- Power - Max:
- 350 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:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
BZT52C30-G RHG FAQ
1.How can I place an order for BZT52C30-G RHG through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C30-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 BZT52C30-G RHG reliable?
The price and inventory of BZT52C30-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 BZT52C30-G RHG is usually 5 days.
3.What payment methods are accepted for BZT52C30-G RHG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C30-G RHG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C30-G RHG?
BZT52C30-G RHG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C30-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 BZT52C30-G RHG?
For technical support, including BZT52C30-G RHG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C30-G RHG requirements.
6.How does Aetrix verify that BZT52C30-G RHG is sourced from the original manufacturer or authorized distributors?
All BZT52C30-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 BZT52C30-G RHG meets industry standards.
7.What is the process for return or replacement of BZT52C30-G RHG?
All BZT52C30-G RHG units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C30-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 BZT52C30-G RHG part is unused and in its original packaging.
Return procedure for BZT52C30-G RHG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52C30-G RHG Tags
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