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Nexperia USA Inc. BZT52H-A3V0X
- Part No.:
- BZT52H-A3V0X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-A3V0X.pdf
- Description:
- DIODE ZENER 3V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,586
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Product details
Overview
BZT52H-A3V0X from Nexperia is a ±1 % tolerance Zener diode in SOD123F package, designed for precision voltage regulation at 3.0 V nominal breakdown voltage with 95 Ω typical differential resistance and ≤0.9 V forward voltage at 10 mA. It delivers stable reference voltage in low-power analog circuits, power supply feedback paths, and overvoltage protection nodes.
For engineers reviewing the BZT52H-A3V0X datasheet, BZT52H-A3V0X pinout, BZT52H-A3V0X application, or BZT52H-A3V0X equivalent, this page provides verified Zener voltage, thermal resistance (150 K/W junction-to-solder-point), reverse current (≤10 μA at 1 V), temperature coefficient (−3.5 to 0.0 mV/K), and SOD123F footprint compatibility for PCB layout validation.
Technical Context
This Zener diode operates in reverse-biased breakdown mode with a tightly controlled 3.0 V ±1 % nominal Zener voltage at 5 mA test current. Its low 95 Ω differential resistance ensures minimal output voltage variation under load changes, while the −3.5 to 0.0 mV/K temperature coefficient enables predictable drift behavior across −65 °C to +150 °C ambient range.
Designed for surface-mount use on FR4 PCBs with single-sided copper, it supports 830 mW total power dissipation at Tamb ≤ 25 °C and exhibits 150 K/W thermal resistance from junction to solder point-critical for thermal management in compact power rails and reference circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.0 V ±1 % at IZ = 5 mA - ensures precise voltage clamping in feedback loops and reference generation |
| Differential Resistance (rdif) | 95 Ω max at IZ = 5 mA - maintains tight regulation under varying load currents |
| Reverse Current (IR) | ≤10 μA at VR = 1 V - guarantees low leakage in standby and low-power modes |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - enables efficient anode-cathode conduction during forward bias |
| Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - defines maximum continuous DC power handling on standard FR4 PCB |
| Thermal Resistance (Rth(j-sp)) | 150 K/W junction-to-solder-point - determines temperature rise above pad temperature during operation |
| Temperature Coefficient (SZ) | −3.5 to 0.0 mV/K at IZ = 5 mA - quantifies voltage drift per degree Celsius for stability analysis |
Pinout & Package
SOD123F plastic surface-mount package: 2-terminal, flat lead, 3.4–3.6 mm length × 2.5–2.7 mm width × 0.7–1.0 mm height; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-bias terminal where Zener breakdown occurs |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±1 % Zener voltage tolerance | Enables high-accuracy voltage references without external trimming in 3.0 V systems |
| 830 mW power rating | Supports robust regulation in 5–10 mA current-sink applications without derating on standard PCBs |
| SOD123F package | Reduces board area by >40 % vs. DO-35; compatible with automated reflow assembly and IPC-7351B footprints |
| −65 °C to +150 °C operating range | Validates use in industrial control, automotive body electronics, and outdoor sensor interfaces |
| Low 95 Ω differential resistance | Minimizes output impedance shift across 1–10 mA load variations in feedback networks |
Applications
| Industrial Power Monitoring | USB-C Port Protection |
|---|---|
Use Scenario: Monitoring 3.3 V rail voltage in PLC I/O modules using resistor-divider + ADC input. IC Role / Device Role / Timing Role: Zener reference providing stable 3.0 V clamp to protect ADC input from overvoltage transients. Use Value: Prevents ADC saturation during 3.3 V rail overshoot up to 5 V, leveraging 3.0 V ±1 % accuracy and 830 mW surge capability. |
Use Scenario: Clamping CC line voltage in USB-C receptacle designs to prevent controller damage. IC Role / Device Role / Timing Role: Low-capacitance (450 pF) Zener shunt protecting USB-C CC logic-level signals from ESD and hot-plug spikes. Use Value: Limits CC line to ≤3.0 V with <10 μA leakage at 1 V, ensuring no interference with 500 mA VCONN detection timing. |
| IoT Sensor Reference | White Goods Control Board |
Use Scenario: Providing stable bias for op-amp comparators in battery-powered smoke detectors. IC Role / Device Role / Timing Role: Precision 3.0 V reference source enabling accurate threshold detection of analog sensor outputs. Use Value: Delivers <±10 mV drift over −25 °C to +70 °C due to −3.5 to 0.0 mV/K coefficient, extending calibration interval. |
Use Scenario: Regulating auxiliary 3.3 V supply for microcontroller reset circuitry in washing machine mainboard. IC Role / Device Role / Timing Role: Zener-based shunt regulator maintaining clean reset voltage despite 12 V rail ripple. Use Value: Maintains 3.0 V ±1 % under 2–8 mA load steps, preventing false MCU resets during motor commutation noise events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52C3V0 | ±5 % tolerance, 95 Ω rdif, same SOD123F package | Acceptable where 3.0 V ±0.15 V drift is permissible (e.g., non-critical biasing) | Select when cost sensitivity outweighs voltage accuracy requirements |
| MMSZ4675 | 3.0 V ±5 %, 350 mW Ptot, SOD-123 package (not SOD123F) | Lower power handling limits use to ≤4 mA loads; different thermal profile | Choose only if legacy design uses MMSZ4675 footprint and 350 mW suffices |
Compared with BZT52H-A3V0X, BZT52C3V0 trades ±1 % accuracy for lower unit cost in non-critical regulation, while MMSZ4675 requires PCB redesign due to differing thermal pad geometry and cannot sustain 830 mW dissipation in identical layouts.
Availability
BZT52H-A3V0X is available at Aetrix Electronics and suitable for industrial power monitoring, USB-C port protection, IoT sensor reference, and white goods control board applications requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZT52H-A3V0X 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and manufacturability.
The BZT52H series belongs to Nexperia's general-purpose Zener diode product line, engineered for precision voltage regulation in space-constrained, high-volume consumer and industrial applications where ±1 % tolerance and SOD123F mountability are critical.
FAQ
What is the maximum reverse current at 1 V for BZT52H-A3V0X?
The reverse current is ≤10 μA at VR = 1 V and Tj = 25 °C, as specified in Table 8 of the datasheet. This low leakage ensures minimal power loss in always-on reference circuits and preserves battery life in portable devices.
Can BZT52H-A3V0X be used in automotive applications?
No-BZT52H-A3V0X is explicitly designated as non-automotive qualified per Revision History section 13. It lacks AEC-Q200 stress testing and automotive-grade qualification. For automotive use, Nexperia offers separate -Q qualified variants such as BZT52H-A3V0X-Q.
What is the thermal resistance from junction to solder point?
Rth(j-sp) is 150 K/W, measured with the cathode soldered to a 1 cm² tin-plated copper pad on FR4 PCB. This value enables accurate junction temperature estimation during thermal design and confirms suitability for 830 mW operation with appropriate pad layout.
How does the temperature coefficient affect regulation accuracy over temperature?
With SZ ranging from −3.5 to 0.0 mV/K at IZ = 5 mA, the Zener voltage shifts by up to −10.5 mV over a 30 °C rise (e.g., 25 °C to 55 °C). This drift is fully characterized and predictable, allowing compensation in high-stability designs via resistor networks or digital calibration.
BZT52H-A3V0X 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):
- 3 V
- Tolerance:
- ±1%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 1 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-123F
BZT52H-A3V0X FAQ
1.How can I place an order for BZT52H-A3V0X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-A3V0X 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-A3V0X reliable?
The price and inventory of BZT52H-A3V0X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52H-A3V0X is usually 5 days.
3.What payment methods are accepted for BZT52H-A3V0X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-A3V0X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-A3V0X?
BZT52H-A3V0X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-A3V0X 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-A3V0X?
For technical support, including BZT52H-A3V0X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-A3V0X requirements.
6.How does Aetrix verify that BZT52H-A3V0X is sourced from the original manufacturer or authorized distributors?
All BZT52H-A3V0X 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-A3V0X meets industry standards.
7.What is the process for return or replacement of BZT52H-A3V0X?
All BZT52H-A3V0X units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-A3V0X, 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-A3V0X part is unused and in its original packaging.
Return procedure for BZT52H-A3V0X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52H-A3V0X Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MMSZ5245BS-7-F
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
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MM5Z5V1ST1G
onsemi
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