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Nexperia USA Inc. BZT52H-C56,115
- Part No.:
- BZT52H-C56,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-C56,115.pdf
- Description:
- DIODE ZENER 56V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:2,950
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Product details
Overview
BZT52H-C56,115 from Nexperia is a ±5 % tolerance Zener diode in SOD123F package, rated for 56 V nominal breakdown voltage at IZ = 2 mA, with 830 mW total power dissipation and 375 mW derated power on standard FR4 PCB. It serves as a precision voltage reference or overvoltage clamp in low-power analog signal conditioning circuits.
For engineers reviewing the BZT52H-C56,115 datasheet, BZT52H-C56,115 pinout, BZT52H-C56,115 application, or BZT52H-C56,115 equivalent, this page delivers verified Zener voltage, thermal resistance, differential resistance, reverse leakage, and cathode/anode terminal mapping - all confirmed from Nexperia's Rev. 7 product data sheet.
Technical Context
This Zener diode operates in reverse-bias breakdown mode with a specified VZ of 52.0 V to 60.0 V at 2 mA test current, exhibiting a temperature coefficient of +0.05 mV/K and differential resistance ≤375 Ω. Its design supports stable regulation under low-current biasing in space-constrained SMD layouts.
The device uses planar epitaxial construction for tight voltage tolerance control and low noise performance. Thermal resistance from junction to ambient is 330 K/W (free air) and 150 K/W (solder point), enabling predictable derating in thermally constrained PCB environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 52.0 V to 60.0 V at IZ = 2 mA - defines clamping threshold for overvoltage protection or reference stability |
| Tolerance | ±5 % - determines worst-case voltage deviation in production designs requiring cost-optimized regulation |
| Differential Resistance (rdif) | ≤375 Ω - impacts regulation accuracy under varying load current; lower values improve line/load regulation |
| Reverse Current (IR) | ≤120 μA at VR = 40 V - sets minimum leakage in standby or high-impedance sensing nodes |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - establishes maximum continuous DC power handling before thermal shutdown |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - defines conduction loss when used in forward-biased ESD paths or polarity protection |
| Junction Temperature (Tj) | −65 °C to +150 °C - confirms operability across industrial and extended commercial temperature ranges |
Pinout & Package
SOD123F is a surface-mount plastic package with two leads, 3.4–3.6 mm length, 1.5–1.7 mm width, and 0.7–1.0 mm height. Cathode marked by a bar on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-bias anode-to-cathode voltage triggers Zener conduction |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes bias path for controlled breakdown operation |
Key Features
| Feature | Design Value |
|---|---|
| Three tolerance grades | ±1 %, ±2 %, and ±5 % options enable trade-offs between precision and cost in voltage reference designs |
| Low-profile SMD package | SOD123F footprint (2.9 × 1.6 mm land pattern) supports high-density PCB layouts without through-hole assembly |
| Controlled temperature coefficient | +0.05 mV/K minimizes drift over −65 °C to +150 °C, critical for stable references in unregulated environments |
| High surge capability | Non-repetitive peak reverse current IZSM = 0.3 A (100 μs pulse) enables transient overvoltage suppression |
| Low thermal resistance to solder point | Rth(j-sp) = 150 K/W allows effective heat transfer to copper pour, supporting sustained 500 mW operation |
Applications
| Power Supply Voltage Reference | Overvoltage Clamp for MCU I/O |
|---|---|
Use Scenario: Providing stable 56 V reference for feedback loop in isolated flyback converter secondary-side regulation. IC Role / Device Role / Timing Role: Zener diode acts as shunt reference, sinking excess current to maintain fixed voltage across optocoupler input. Use Value: ±5 % tolerance and 375 Ω rdif ensure <±1.2 V output variation across line/load/temperature, meeting Class II safety margin requirements. |
Use Scenario: Protecting 3.3 V microcontroller GPIO pins against accidental 48 V field-wiring faults in industrial sensor nodes. IC Role / Device Role / Timing Role: Connected cathode-to-GPIO, anode-to-ground; conducts only during fault to clamp voltage below absolute maximum rating. Use Value: 56 V VZ ensures normal operation remains unaffected while limiting pin voltage to safe levels during 50 V transients. |
| Low-Power Analog Sensor Biasing | ESD Protection in Signal Conditioning |
Use Scenario: Generating precise bias voltage for op-amp input stage in battery-powered gas sensor front-end. IC Role / Device Role / Timing Role: Zener supplies regulated 56 V to high-impedance bias network feeding ionization chamber amplifier. Use Value: 120 μA max reverse leakage at 40 V prevents loading of high-Z sensor node, preserving measurement accuracy. |
Use Scenario: Supplementing TVS diodes in RS-485 receiver inputs exposed to IEC 61000-4-2 contact discharge events. IC Role / Device Role / Timing Role: Placed in parallel with signal line to ground, conducting fast transients before main TVS activates. Use Value: 0.3 A non-repetitive surge rating handles 8 kV ESD pulses without degradation, extending system-level robustness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52C56,115 | Same SOD123F package and 56 V nominal VZ, but ±5 % tolerance (identical); differs only in marking code and internal lot traceability | No functional difference; identical electrical specs and thermal behavior per Rev. 7 datasheet | Select when cross-referencing legacy BZT52C-series procurement systems or distributor stock alignment |
| MMBZ5256BS-7-F | 56 V VZ at 20 mA, ±5 %, SOT-23 package; higher test current yields lower rdif (~150 Ω) but larger footprint and 350 mW Ptot | Higher power dissipation capability unsuitable for ultra-low-power designs; requires different PCB layout | Choose only if lower dynamic impedance is required and board space permits SOT-23 placement |
Compared with BZT52H-C56,115, BZT52C56,115 offers identical regulation performance with no design change needed, while MMBZ5256BS-7-F trades smaller voltage drift for reduced power handling and larger package - making it less suitable for space- and power-constrained applications.
Availability
BZT52H-C56,115 is available at Aetrix Electronics and suitable for industrial sensor biasing, MCU I/O protection, analog reference generation, and low-power overvoltage clamping requiring stable component supply and full traceability.
Supply support for BZT52H-C56,115 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.
The BZT52H series belongs to Nexperia's general-purpose Zener diode product line, engineered for cost-sensitive, space-constrained voltage regulation and protection in commercial and industrial equipment.
FAQ
What is the exact Zener voltage range for BZT52H-C56,115 at 2 mA?
The BZT52H-C56,115 has a guaranteed Zener voltage range of 52.0 V to 60.0 V when tested at IZ = 2 mA and Tj = 25 °C, per Table 10 of Nexperia's Rev. 7 datasheet. This ±5 % tolerance reflects the 'C' grade designation and applies across the full operating temperature range.
Can BZT52H-C56,115 be used in place of a 56 V Zener with ±2 % tolerance?
No - the 'C' suffix denotes ±5 % tolerance, whereas ±2 % devices are designated 'B' (e.g., BZT52H-B56,115). Substituting without circuit revalidation risks exceeding voltage error budgets in precision reference applications due to up to 4 V wider VZ spread.
What is the maximum continuous reverse power this diode can handle on a standard PCB?
At ambient temperature ≤25 °C and mounted on FR4 with single-sided 1 cm² cathode pad, BZT52H-C56,115 supports 830 mW continuous reverse power. Derating begins above 25 °C at 6.6 mW/°C, reaching zero dissipation at 150 °C junction temperature.
Is the SOD123F package compatible with standard reflow soldering profiles?
Yes - Nexperia specifies reflow soldering as the only recommended method for SOD123F. The footprint in Figure 12 (2.9 × 1.6 mm lands, 1.1 mm pad spacing) aligns with IPC-7351B medium density, and the package withstands peak temperatures up to 260 °C for ≤30 seconds per JEDEC J-STD-020.
BZT52H-C56,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZT52H
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 56 V
- Tolerance:
- ±5%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 120 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 39.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT52H-C56,115 FAQ
1.How can I place an order for BZT52H-C56,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-C56,115 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 BZT52H-C56,115 reliable?
The price and inventory of BZT52H-C56,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52H-C56,115 is usually 5 days.
3.What payment methods are accepted for BZT52H-C56,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-C56,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-C56,115?
BZT52H-C56,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-C56,115 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 BZT52H-C56,115?
For technical support, including BZT52H-C56,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-C56,115 requirements.
6.How does Aetrix verify that BZT52H-C56,115 is sourced from the original manufacturer or authorized distributors?
All BZT52H-C56,115 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 BZT52H-C56,115 meets industry standards.
7.What is the process for return or replacement of BZT52H-C56,115?
All BZT52H-C56,115 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-C56,115, 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 BZT52H-C56,115 part is unused and in its original packaging.
Return procedure for BZT52H-C56,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52H-C56,115 Tags
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MMBZ5240B-7-F
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