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Taiwan Semiconductor Corporation BZT52C3V0 RHG
- Part No.:
- BZT52C3V0 RHG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52C3V0 RHG.pdf
- Description:
- DIODE ZENER 3V 500MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:5,684
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Product details
Overview
BZT52C3V0 RHG from Taiwan Semiconductor is a surface-mount 3.0 V ±5% Zener diode in SOD-123F package, rated for 500 mW power dissipation and tested at 5 mA zener current. It provides precise low-voltage regulation with 2.85–3.15 V nominal breakdown range, 100 Ω dynamic impedance, and 9 µA leakage at 1.0 V reverse bias - used in DC/DC converter feedback networks and voltage reference circuits.
For engineers reviewing the BZT52C3V0 RHG datasheet, BZT52C3V0 RHG pinout, BZT52C3V0 RHG application, or BZT52C3V0 RHG equivalent, key selection criteria include verified 3.0 V ±5% tolerance, SOD-123F thermal resistance (350 °C/W), cathode-band polarity marking, moisture sensitivity level 1 compliance, and RoHS/WEEE/halogen-free certification.
Technical Context
The BZT52C3V0 RHG operates as a single-die, unidirectional Zener diode optimized for stable voltage clamping and reference generation in low-power analog and power management circuits. Its 5 mA test current and 100 Ω zener impedance at IZT ensure predictable regulation under light-load conditions typical of sensor biasing and microcontroller reset circuits.
Designed for surface-mount assembly with matte tin-plated leads compliant to J-STD-002, the device features a UL 94 V-0 molding compound and operates across –65 °C to +150 °C junction temperature range. Polarity is unambiguously indicated by a cathode band, and its 8.85 mg mass supports automated pick-and-place accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.85–3.15 V at 5 mA - defines tight ±5% regulation window for precision 3.0 V references |
| Power Dissipation (PD) | 500 mW - sets maximum continuous power handling in SOD-123F package without derating below 25 °C |
| Zener Impedance (ZZT) | 100 Ω at 5 mA - determines output voltage stability under small-signal load variations |
| Leakage Current (IR) | 9 µA at 1.0 V reverse bias - ensures minimal quiescent current draw in battery-sensitive applications |
| Junction Temperature (TJ) | –65 °C to +150 °C - enables operation in automotive under-hood and industrial control environments |
| Package | SOD-123F - standardized 3.3–3.9 mm body length footprint compatible with IPC-7351B land patterns |
| Moisture Sensitivity | Level 1 per J-STD-020 - allows unlimited floor life before reflow, eliminating bake requirements |
Pinout & Package
SOD-123F package: 2-terminal surface-mount case with cathode band marking on one end; terminals are anode (unmarked end) and cathode (banded end); dimensions: 3.3–3.9 mm length × 1.5–1.7 mm width × 0.5–0.7 mm height; weight 8.85 ± 0.5 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in reverse-biased Zener configuration; carries forward current up to 1 A surge rating |
| Cathode | Zener breakdown terminal | Marked with band; connected to higher-potential node to enable controlled reverse breakdown at 3.0 V ±5% |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Ensures consistent 2.85–3.15 V regulation across production lots without post-assembly trimming |
| SOD-123F package with level 1 MSL | Enables direct placement into high-volume SMT lines without dry-pack or baking logistics |
| RoHS, WEEE, and halogen-free compliance | Meets EU environmental directives and IEC 61249-2-21 for green manufacturing and end-of-life recycling |
| UL 94 V-0 flammability rating | Confirms flame-retardant encapsulation suitable for safety-critical consumer and industrial PCBs |
Applications
| Low-Voltage Microcontroller Reset Circuit | DC/DC Converter Feedback Reference |
|---|---|
Use Scenario: Providing stable 3.0 V threshold for brown-out detection in ARM Cortex-M0+ systems. IC Role / Device Role / Timing Role: Zener diode acts as precision voltage reference for reset supervisor IC input. Use Value: Tight ±5% tolerance ensures reset assertion within 2.85–3.15 V window, preventing premature or delayed resets. |
Use Scenario: Setting output voltage of isolated flyback converter via optocoupler feedback path. IC Role / Device Role / Timing Role: Zener diode establishes regulated 3.0 V reference at secondary-side error amplifier input. Use Value: 100 Ω ZZT minimizes feedback loop gain variation, improving output voltage accuracy to ±1.5%. |
| USB-C Power Delivery Adapter Clamp | Industrial Sensor Signal Conditioning |
Use Scenario: Clamping transient overvoltage on 3.3 V auxiliary rail during hot-plug events in USB PD adapters. IC Role / Device Role / Timing Role: Zener diode functions as fast-acting shunt protector downstream of buck regulator. Use Value: 500 mW rating sustains 3.0 V clamping during 100 ns transients without thermal runaway. |
Use Scenario: Biasing bridge-based pressure sensor in 24 V industrial PLC analog input module. IC Role / Device Role / Timing Role: Zener diode supplies stable 3.0 V excitation to Wheatstone bridge. Use Value: Low 9 µA leakage at 1.0 V ensures <1 µA error contribution to 20-bit ADC measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5222BS-7-F (Diodes Inc.) | Same 3.0 V ±5%, SOD-323 package (smaller footprint), 350 mW rating, 100 Ω ZZT | Higher thermal resistance (~450 °C/W) limits power handling in sustained 500 mW scenarios | Select when board space is constrained and peak power remains ≤350 mW |
| 1N4728A (ON Semiconductor) | 3.3 V nominal, DO-35 through-hole package, 1.0 W rating, 10 Ω ZZT, ±5% tolerance | Not surface-mountable; requires wave soldering; tighter impedance but incompatible with SMT-only lines | Select only for legacy through-hole designs where 3.3 V (not 3.0 V) regulation is acceptable |
Compared with MMBZ5222BS-7-F and 1N4728A, the BZT52C3V0 RHG uniquely balances SMD compatibility, 500 mW capability, and 3.0 V ±5% precision in the industry-standard SOD-123F outline - making it optimal for new designs requiring reliable, RoHS-compliant low-voltage regulation without layout compromise.
Availability
BZT52C3V0 RHG is available at Aetrix Electronics and suitable for low-voltage stabilizers, on-board DC/DC converters, and adapter reference circuits requiring stable component supply and full environmental compliance.
Supply support for BZT52C3V0 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, computing, and consumer markets.
The BZT52C series is part of TSC's standard Zener diode portfolio engineered for high-reliability voltage reference and clamping in cost-sensitive SMT applications - emphasizing tight tolerance control, robust packaging, and global environmental compliance.
FAQ
What is the exact zener voltage range specified for BZT52C3V0 RHG at 5 mA test current?
The BZT52C3V0 RHG has a guaranteed zener voltage range of 2.85 V (minimum) to 3.15 V (maximum) when tested at 5 mA, reflecting its ±5% tolerance around the nominal 3.0 V rating. This range is validated per Taiwan Semiconductor's G1804 specification document and applies under pulse-test conditions (30 ms duration) at 25 °C ambient.
Is BZT52C3V0 RHG suitable for reflow soldering without moisture preconditioning?
Yes, BZT52C3V0 RHG is rated Moisture Sensitivity Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30 °C/60% RH and placed directly into reflow without baking or dry-pack handling. Its SOD-123F package uses UL 94 V-0 molding compound compatible with standard lead-free reflow profiles.
What is the maximum allowable junction temperature for continuous operation of BZT52C3V0 RHG?
The BZT52C3V0 RHG supports continuous operation from –65 °C to +150 °C junction temperature. At ambient temperatures above 25 °C, power dissipation must be linearly derated from 500 mW using the specified junction-to-ambient thermal resistance of 350 °C/W, reaching zero power at 121 °C ambient.
Does BZT52C3V0 RHG meet halogen-free and RoHS requirements?
Yes, BZT52C3V0 RHG complies with RoHS Directive 2011/65/EU and WEEE 2002/96/EC, and is certified halogen-free per IEC 61249-2-21. These qualifications are documented in Taiwan Semiconductor's G1804 revision and confirmed on official product change notices and material declarations.
How is polarity identified on the BZT52C3V0 RHG SOD-123F package?
Polarity on the BZT52C3V0 RHG is indicated by a visible cathode band located at one end of the SOD-123F case. The banded end is the cathode; the opposite end is the anode. This marking aligns with JEDEC standards and is verified in the mechanical drawings of Taiwan Semiconductor's G1804 datasheet.
BZT52C3V0 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):
- 3 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 9 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT52C3V0 RHG FAQ
1.How can I place an order for BZT52C3V0 RHG through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C3V0 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 BZT52C3V0 RHG reliable?
The price and inventory of BZT52C3V0 RHG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C3V0 RHG is usually 5 days.
3.What payment methods are accepted for BZT52C3V0 RHG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C3V0 RHG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C3V0 RHG?
BZT52C3V0 RHG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C3V0 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 BZT52C3V0 RHG?
For technical support, including BZT52C3V0 RHG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C3V0 RHG requirements.
6.How does Aetrix verify that BZT52C3V0 RHG is sourced from the original manufacturer or authorized distributors?
All BZT52C3V0 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 BZT52C3V0 RHG meets industry standards.
7.What is the process for return or replacement of BZT52C3V0 RHG?
All BZT52C3V0 RHG units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C3V0 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 BZT52C3V0 RHG part is unused and in its original packaging.
Return procedure for BZT52C3V0 RHG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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