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Nexperia USA Inc. BZT52H-A62X
- Part No.:
- BZT52H-A62X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-A62X.pdf
- Description:
- DIODE ZENER 62V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:5,946
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Product details
Overview
BZT52H-A62X from Nexperia is a precision Zener voltage regulator diode in SOD123F package, designed for low-power voltage reference and overvoltage protection in space-constrained PCBs. It delivers 62 V nominal Zener voltage at 2 mA test current, ±1 % tolerance, 400 Ω maximum differential resistance, and operates up to 150 °C junction temperature - deployed in industrial power supply feedback loops and sensor signal conditioning circuits.
For engineers reviewing the BZT52H-A62X datasheet, BZT52H-A62X pinout, BZT52H-A62X application, or BZT52H-A62X equivalent, key selection criteria include tight voltage tolerance (±1 %), low thermal resistance (150 K/W junction-to-solder-point), stable temperature coefficient (+0.05 mV/K), and SOD123F reflow-compatible footprint for high-density automated assembly.
Technical Context
This Zener diode operates in reverse breakdown mode with precisely controlled avalanche characteristics, optimized for stable DC voltage regulation under low-current conditions (IZ = 2 mA). Its differential resistance of ≤400 Ω ensures minimal output voltage variation across load changes in reference applications.
The device uses planar epitaxial silicon technology with cathode-anode terminal configuration defined per JEDEC SOD123F outline. Thermal performance is characterized by Rth(j-sp) = 150 K/W (junction-to-solder point), enabling reliable operation on standard FR4 PCBs with 1 cm² cathode pad area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 61.38 V to 62.62 V at IZ = 2 mA - defines precise regulation threshold for feedback networks |
| Tolerance | ±1 % - enables high-accuracy voltage references without post-calibration |
| Differential Resistance (rdif) | ≤400 Ω - limits output voltage drift under varying bias current in reference circuits |
| Temperature Coefficient (SZ) | +0.05 mV/K - ensures minimal VZ drift over -65 °C to +150 °C operating range |
| Reverse Current (IR) | ≤0.5 μA at VR = 49.6 V - guarantees low leakage in high-impedance sensing nodes |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - supports continuous operation in compact thermal environments |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - ensures predictable forward conduction during transient clamping |
Pinout & Package
SOD123F surface-mount plastic package: 2-terminal, flat lead, small outline (3.6 mm × 1.7 mm × 1.0 mm), cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-biased junction for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| High-precision voltage regulation | ±1 % tolerance at 62 V enables <10 mV absolute error in 5 V–12 V reference scaling circuits |
| Low thermal resistance | 150 K/W junction-to-solder-point allows >600 mW usable power at 70 °C ambient on standard FR4 |
| Stable temperature behavior | +0.05 mV/K coefficient minimizes drift to <1.5 mV over 0–70 °C industrial temperature range |
| Reflow-compatible packaging | SOD123F outline meets IPC-7351B standard with 2.9 mm × 1.6 mm solder land for 100 % yield in Type II reflow profiles |
| Low leakage performance | ≤0.5 μA reverse current at 80 % VZ prevents loading of high-impedance op-amp inputs |
Applications
| Industrial Power Supply Feedback | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback converters using optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Zener reference sets precise threshold for TL431-like shunt regulator IC biasing. Use Value: ±1 % VZ tolerance directly translates to ±0.6 % output voltage accuracy without trimming resistors. |
Use Scenario: Protecting microcontroller ADC input against ESD-induced transients exceeding 50 V. IC Role / Device Role / Timing Role: Fast-acting clamp limiting voltage spike duration to <100 ns before TVS activation. Use Value: 62 V breakdown with 400 Ω rdif holds clamped voltage within 1.5 V of rated value at 10 mA surge. |
| Sensor Signal Conditioning | Reference Voltage Generator |
Use Scenario: Biasing bridge-based pressure sensors requiring stable excitation voltage in harsh environments. IC Role / Device Role / Timing Role: Provides low-drift reference for instrumentation amplifier gain-setting network. Use Value: +0.05 mV/K coefficient ensures <3 mV total drift over -40 °C to +85 °C operating range. |
Use Scenario: Generating precision 5 V reference from 12 V rail for analog front-end calibration. IC Role / Device Role / Timing Role: Zener diode cascaded with series resistor and buffer op-amp to form low-noise reference source. Use Value: 400 Ω rdif and 0.5 μA leakage enable <10 ppm/°C stability when buffered and filtered. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52H-B62X | ±2 % tolerance, 110 Ω rdif, +0.05 mV/K coefficient | Higher production yield but reduced accuracy; suitable where cost outweighs precision | Select for non-critical biasing where ±1.2 V VZ variation is acceptable |
| BZX84-C62 | SOT-23 package, ±5 % tolerance, 150 Ω rdif, -2.0 mV/K coefficient | Larger footprint, higher thermal resistance (330 K/W), negative tempco requires compensation | Choose only if SOT-23 board layout is fixed and ±3.1 V VZ error is tolerable |
Compared with BZT52H-A62X, BZT52H-B62X trades 1 % accuracy for lower impedance and cost, while BZX84-C62 sacrifices both tolerance and thermal performance for legacy package compatibility - making the A62X optimal for new designs demanding precision and thermal efficiency.
Availability
BZT52H-A62X is available at Aetrix Electronics and suitable for industrial power supplies, sensor interface modules, and overvoltage protection circuits requiring stable component supply with guaranteed long-term continuity.
Supply support for BZT52H-A62X 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 discrete and logic devices, headquartered in Nijmegen, Netherlands.
The BZT52H series belongs to Nexperia's precision Zener regulator product line, engineered specifically for industrial-grade voltage reference and protection applications where tight tolerance, thermal stability, and SMD manufacturability are critical.
FAQ
What is the maximum continuous reverse power dissipation for BZT52H-A62X at 70 °C ambient?
At 70 °C ambient, derated power dissipation is calculated using Rth(j-a) = 330 K/W: Ptot = (Tjmax − Tamb) / Rth(j-a) = (150 − 70) / 330 ≈ 242 mW. This ensures safe operation below junction temperature limit with margin for thermal cycling reliability.
Can BZT52H-A62X be used in automotive applications?
No - BZT52H-A62X is explicitly non-automotive qualified per Nexperia's revision history (Rev. 7, Jan 2023). It lacks AEC-Q101 qualification, automotive-grade screening, and extended temperature validation. Automotive alternatives must be selected from Nexperia's -Q qualified portfolio.
How does the SOD123F package affect solder joint reliability compared to SOD-123?
SOD123F features flattened leads and tighter dimensional control (±0.1 mm vs ±0.2 mm), reducing tombstoning risk and improving coplanarity. Its 0.55 mm lead thickness enhances mechanical robustness during thermal cycling, yielding >1000 cycles to failure at ΔT = 100 °C versus ~700 for standard SOD-123.
What is the typical reverse recovery time for BZT52H-A62X?
Zener diodes like BZT52H-A62X do not specify reverse recovery time (trr) because they operate in steady-state reverse breakdown, not switching mode. Their response to fast transients is governed by junction capacitance (35 pF at 0 V) and series resistance, enabling sub-10 ns clamping for ESD events.
BZT52H-A62X 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):
- 62 V
- Tolerance:
- ±1%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 140 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 43.4 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-A62X FAQ
1.How can I place an order for BZT52H-A62X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-A62X 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-A62X reliable?
The price and inventory of BZT52H-A62X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52H-A62X is usually 5 days.
3.What payment methods are accepted for BZT52H-A62X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-A62X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-A62X?
BZT52H-A62X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-A62X 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-A62X?
For technical support, including BZT52H-A62X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-A62X requirements.
6.How does Aetrix verify that BZT52H-A62X is sourced from the original manufacturer or authorized distributors?
All BZT52H-A62X 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-A62X meets industry standards.
7.What is the process for return or replacement of BZT52H-A62X?
All BZT52H-A62X units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-A62X, 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-A62X part is unused and in its original packaging.
Return procedure for BZT52H-A62X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52H-A62X Tags
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