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Taiwan Semiconductor Corporation BZT52C56 RHG
- Part No.:
- BZT52C56 RHG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52C56 RHG.pdf
- Description:
- DIODE ZENER 56V 500MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
BZT52C56 RHG from Taiwan Semiconductor is a 56 V ±5% tolerance, 500 mW surface-mount Zener diode in SOD-123F package, tested at 2 mA zener current with 200 Ω dynamic impedance and 0.045 µA leakage at 39.2 V reverse bias; used for precision voltage reference and low-power stabilization in DC/DC converters.
For engineers reviewing the BZT52C56 RHG datasheet, BZT52C56 RHG pinout, BZT52C56 RHG application, or BZT52C56 RHG equivalent, key selection criteria include nominal zener voltage (56 V), tight ±5% tolerance, SOD-123F footprint compatibility, thermal resistance (350 °C/W), and low leakage performance under rated reverse voltage.
Technical Context
The BZT52C56 RHG operates as a single-die, cathode-banded Zener diode optimized for stable reverse-breakdown regulation. Its 56 V nominal zener voltage is specified at 2 mA test current (IZK), with 200 Ω dynamic impedance (ZZK) measured under same conditions and 400 Ω impedance (ZZT) at 5 mA (IZT).
Designed for ambient temperatures from –65 °C to +150 °C, it features a junction-to-ambient thermal resistance of 350 °C/W and meets RoHS, WEEE, and halogen-free (IEC 61249-2-21) compliance requirements with moisture sensitivity level 1 per J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ Nominal | 56 V - precise regulation point for voltage reference circuits |
| VZ Tolerance | ±5% - ensures predictable clamping across production lots |
| Power Dissipation | 500 mW - supports continuous operation in compact SMD layouts |
| Zener Test Current | 2 mA (IZK) - defines low-current regulation point for standby-mode references |
| Dynamic Impedance | 200 Ω at IZK - determines voltage deviation under small-signal load variation |
| Leakage Current | 0.045 µA at 39.2 V - enables ultra-low quiescent current in battery-powered systems |
| Junction Temp Max | +150 °C - allows use in thermally constrained industrial environments |
Pinout & Package
Package: SOD-123F - 3.3–3.9 mm body length, 1.5–1.7 mm width, cathode indicated by band; compatible with standard reflow profiles and J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in reverse-biased regulation configuration |
| Cathode | Zener breakdown terminal | Marked with band; connected to higher-potential node to enable controlled reverse conduction |
Key Features
| Feature | Design Value |
|---|---|
| ±5% zener voltage tolerance | Reduces need for post-assembly trimming in voltage reference designs |
| SOD-123F package | Enables high-density PCB layout with industry-standard footprint and reflow compatibility |
| Moisture sensitivity level 1 | Eliminates bake requirements prior to assembly, lowering manufacturing cost |
| Halogen-free construction | Meets environmental compliance mandates without compromising thermal or electrical performance |
| RoHS/WEEE compliant | Supports global market access and end-of-life recycling obligations |
Applications
| Low-Voltage Stabilizers | On-Board DC/DC Converters |
|---|---|
Use Scenario: Providing stable bias voltage for op-amp input stages in sensor signal conditioning circuits. IC Role / Device Role / Timing Role: Voltage reference element maintaining fixed potential against supply ripple. Use Value: 56 V rating enables direct use in intermediate-rail monitoring where 48 V bus derivatives require accurate scaling. | Use Scenario: Regulating feedback node voltage in isolated flyback converter secondary-side control loops. IC Role / Device Role / Timing Role: Precision shunt reference setting output voltage via optocoupler feedback path. Use Value: Low 0.045 µA leakage minimizes error current injection into feedback divider network. |
| Adapters | Industrial Power Monitoring |
Use Scenario: Clamping transient overvoltage on USB-C PD negotiation lines during hot-plug events. IC Role / Device Role / Timing Role: Transient voltage suppressor protecting communication ICs from ESD-induced overshoot. Use Value: 500 mW power rating sustains short-duration surges without thermal runaway in compact adapter housings. | Use Scenario: Scaling 400 V DC bus voltage to ADC input range using resistive divider with reference stabilization. IC Role / Device Role / Timing Role: High-impedance voltage clamp stabilizing divider midpoint against load transients. Use Value: 200 Ω dynamic impedance ensures <10 mV deviation under 50 µA load step, critical for 12-bit measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5256B-7-F | Same 56 V ±5%, but SOT-23 package; 300 mW rating; 250 Ω ZZK at 2 mA | Larger footprint and higher thermal resistance than SOD-123F; less suitable for space-constrained layouts | Select when SOT-23 is already standardized in design and 300 mW suffices |
| 1N5256B-TAP | Through-hole DO-35 package; 500 mW; 5% tolerance; 200 Ω ZZK at 2 mA | Requires wave soldering or hand assembly; incompatible with fully SMT production flow | Select only for prototyping or legacy through-hole systems requiring identical electrical specs |
Compared with MMBZ5256B-7-F and 1N5256B-TAP, the BZT52C56 RHG offers optimal balance of SMD compatibility, 500 mW power handling, and low-leakage performance in the smallest possible footprint-making it preferred for high-volume, space-limited industrial and adapter applications.
Availability
BZT52C56 RHG is available at Aetrix Electronics and suitable for low-voltage stabilizers, on-board DC/DC converters, and adapters requiring stable component supply, consistent parametric performance, and full RoHS/halogen-free compliance.
Supply support for BZT52C56 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and consumer markets since 1979.
The BZT52C series is part of TSC's precision Zener diode product line, engineered specifically for stable voltage referencing and low-power clamping in space-constrained, high-reliability SMD applications.
FAQ
What is the zener voltage tolerance of BZT52C56 RHG?
The BZT52C56 RHG has a nominal zener voltage of 56 V with a guaranteed tolerance of ±5%, meaning the actual measured VZ falls between 53.2 V and 58.8 V at 2 mA test current. This tolerance is confirmed in the Electrical Specifications table of the official Taiwan Semiconductor datasheet (Version G1804), and applies across the full operating temperature range.
What package type does BZT52C56 RHG use?
The BZT52C56 RHG uses the SOD-123F surface-mount package, as explicitly stated in the Ordering Information section of the Taiwan Semiconductor datasheet. It features matte tin-plated leads, moisture sensitivity level 1, and a defined pad layout with 3.3–3.9 mm body length and cathode band polarity marking.
What is the maximum power dissipation rating for BZT52C56 RHG?
The BZT52C56 RHG has a maximum power dissipation (PD) rating of 500 mW at 25 °C ambient, as specified in both the Key Parameters and Absolute Maximum Ratings tables. Derating is required above 25 °C, with a junction-to-ambient thermal resistance of 350 °C/W defining the linear derating slope.
What is the leakage current specification for BZT52C56 RHG?
The BZT52C56 RHG exhibits a maximum leakage current (IR) of 0.045 µA at a reverse voltage (VR) of 39.2 V, per the Electrical Specifications table. This ultra-low leakage supports energy-efficient operation in battery-backed and always-on monitoring circuits.
Is BZT52C56 RHG RoHS and halogen-free compliant?
Yes, the BZT52C56 RHG is compliant with RoHS Directive 2011/65/EU and WEEE 2002/96/EC, and is halogen-free per IEC 61249-2-21, as confirmed in the Features section of the Taiwan Semiconductor datasheet (Version G1804). These compliance statements apply to the full BZT52C2V4–BZT52C75 family, including BZT52C56 RHG.
BZT52C56 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):
- 56 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 200 Ohms
- Current - Reverse Leakage @ Vr:
- 45 nA @ 39.2 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
BZT52C56 RHG FAQ
1.How can I place an order for BZT52C56 RHG through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C56 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 BZT52C56 RHG reliable?
The price and inventory of BZT52C56 RHG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C56 RHG is usually 5 days.
3.What payment methods are accepted for BZT52C56 RHG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C56 RHG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C56 RHG?
BZT52C56 RHG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C56 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 BZT52C56 RHG?
For technical support, including BZT52C56 RHG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C56 RHG requirements.
6.How does Aetrix verify that BZT52C56 RHG is sourced from the original manufacturer or authorized distributors?
All BZT52C56 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 BZT52C56 RHG meets industry standards.
7.What is the process for return or replacement of BZT52C56 RHG?
All BZT52C56 RHG units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C56 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 BZT52C56 RHG part is unused and in its original packaging.
Return procedure for BZT52C56 RHG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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