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Nexperia USA Inc. BZT52H-B5V6-QX
- Part No.:
- BZT52H-B5V6-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-B5V6-QX.pdf
- Description:
- DIODE ZENER 5.6V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,989
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Product details
Overview
BZT52H-B5V6-QX from Nexperia is a ±2 % tolerance Zener diode in SOD123F package, rated for 5.6 V nominal breakdown voltage at 5 mA, 400 Ω max differential resistance, and 830 mW total power dissipation. It operates across –65 °C to +150 °C ambient range and is AEC-Q101 qualified for automotive voltage regulation and reference applications.
For engineers reviewing the BZT52H-B5V6-QX datasheet, BZT52H-B5V6-QX pinout, BZT52H-B5V6-QX application, or BZT52H-B5V6-QX equivalent, this page delivers verified Zener parameters, thermal performance data, automotive qualification status, and real-world design implications for precision biasing and overvoltage clamping circuits.
Technical Context
This Zener diode functions as a two-terminal voltage reference with sharp reverse breakdown at 5.6 V under 5 mA test current. Its temperature coefficient of –2.0 to +2.5 mV/K (at IZ = 5 mA) enables stable regulation across automotive temperature ranges when used with appropriate thermal management.
The device exhibits 1 μA max reverse current at 4.0 V (VR), 400 Ω max dynamic impedance, and 300 pF capacitance at 0 V - characteristics critical for low-noise analog references and fast transient suppression in power supply feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 5.6 V at IZ = 5 mA - defines precise DC reference point for regulator feedback or sensor biasing |
| Tolerance | ±2 % - ensures tight voltage accuracy without post-production trimming in production-grade automotive modules |
| Differential Resistance | 400 Ω max - limits output impedance impact on load regulation in low-current reference circuits |
| Total Power Dissipation | 830 mW at Tamb ≤ 25 °C on 1 cm² cathode pad - sets maximum continuous DC power handling in PCB-mounted designs |
| Reverse Current | 1 μA max at VR = 4.0 V - guarantees minimal leakage-induced error in high-impedance sensing nodes |
| Junction Temperature | 150 °C max - supports operation in under-hood automotive environments without derating below full rating |
| AEC-Q101 Qualified | Yes - validated for automotive use per stress test requirements including HTGB, HTRB, and temperature cycling |
Pinout & Package
SOD123F surface-mount plastic package: 2.5–2.7 mm length × 1.2–1.5 mm width × 0.9–1.1 mm height; cathode marked by bar; optimized for reflow soldering on FR4 PCBs with standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; carries reverse-biased current during regulation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes Zener conduction path when reverse voltage exceeds 5.6 V |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use with HTGB, HTRB, and temperature cycling compliance |
| ±2 % voltage tolerance | Enables direct replacement in 5.6 V reference designs without recalibration or resistor adjustment |
| 830 mW power rating | Supports >100 mA regulation current at 5.6 V with adequate PCB copper area, eliminating need for larger packages |
| Low 300 pF capacitance | Minimizes phase shift in feedback loops of switching regulators operating up to ~1 MHz |
| 150 °C junction limit | Permits uninterrupted operation in engine control units with ambient temperatures up to +125 °C |
Applications
| Automotive Engine Control Unit (ECU) Reference | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Providing stable 5.6 V bias for oxygen sensor interface circuitry in gasoline ECU modules. IC Role / Device Role / Timing Role: Zener voltage reference establishing precision DC offset for analog front-end amplifiers. Use Value: ±2 % tolerance and –2.0 to +2.5 mV/K TC ensure <±30 mV drift over –40 °C to +125 °C ambient, meeting ASIL-B functional safety margin. |
Use Scenario: Regulating excitation voltage for 4–20 mA current-loop pressure transmitters in factory automation. IC Role / Device Role / Timing Role: Two-terminal shunt regulator maintaining constant voltage across bridge sensor elements. Use Value: 830 mW rating allows 150 mA short-circuit current headroom during loop fault conditions without thermal runaway. |
| Consumer Power Adapter Feedback | Medical Diagnostic Equipment Biasing |
Use Scenario: Setting reference voltage in optocoupler feedback path of isolated AC/DC adapters for smart home devices. IC Role / Device Role / Timing Role: Precision Zener defining secondary-side regulation threshold for TL431-like control. Use Value: 400 Ω max rdif ensures <10 mV load regulation error across 1–10 mA feedback current range. |
Use Scenario: Generating calibrated bias for photodiode preamplifiers in portable ultrasound imaging front-ends. IC Role / Device Role / Timing Role: Low-noise voltage reference stabilizing transimpedance amplifier operating point. Use Value: 1 μA max IR at 4.0 V prevents input offset drift >10 nA in high-gain (>10⁶ V/A) configurations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52C5V6-Q | ±5 % tolerance, 500 Ω max rdif, same SOD123F package | Lower accuracy; suitable for non-critical biasing where cost is prioritized over stability | Select when ±5 % voltage variation is acceptable and AEC-Q101 is not required |
| MMSZ5232BS-7-F | ±5 % tolerance, 600 Ω max rdif, SOD-123 package (non-AEC-Q101) | Lacks automotive qualification; higher dynamic impedance increases regulation error | Use only in commercial-grade consumer products with ambient <85 °C and no vibration/stress requirements |
Compared with BZT52H-B5V6-QX, BZT52C5V6-Q trades tighter tolerance and AEC-Q101 compliance for lower unit cost, while MMSZ5232BS-7-F omits automotive validation and exhibits higher impedance - making the original part uniquely suited for safety-relevant 5.6 V reference roles in harsh environments.
Availability
BZT52H-B5V6-QX is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor transmitters, consumer power adapters, and medical diagnostic equipment requiring stable component supply with guaranteed long-term availability.
Supply support for BZT52H-B5V6-QX 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, with leadership in automotive-qualified components and energy-efficient solutions.
The BZT52H-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode product line, engineered specifically for robust voltage reference and regulation in automotive powertrain, body electronics, and ADAS subsystems.
FAQ
What is the maximum reverse voltage before breakdown for BZT52H-B5V6-QX?
The nominal Zener voltage is 5.6 V at 5 mA test current, with guaranteed breakdown between 5.49 V and 5.71 V (±2 %). At 4.0 V reverse bias, leakage remains ≤1 μA - confirming stable non-conduction below the specified knee voltage.
Can BZT52H-B5V6-QX replace older BZT52B5V6 parts in existing designs?
Yes - it shares identical SOD123F package, pinout, and electrical specifications but adds AEC-Q101 qualification and tighter process control. No layout or schematic changes are needed, and the improved reliability supports extended automotive service life.
How does thermal resistance affect power derating in PCB designs?
Rth(j-sp) is 70 K/W to the cathode solder point. With a 1 cm² copper pad, the 830 mW rating applies only up to 25 °C ambient; above that, power must be linearly derated by 8.3 mW/°C to maintain Tj ≤ 150 °C.
Is the 300 pF capacitance measured at zero bias relevant for high-frequency applications?
Yes - measured at 1 MHz and 0 V, this value directly impacts noise coupling and phase margin in feedback networks. For >10 MHz signal paths, the capacitance may introduce measurable attenuation, requiring layout isolation or alternative low-C Zeners.
BZT52H-B5V6-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZT52H-Q
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.6 V
- Tolerance:
- ±1.96%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 40 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 2 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT52H-B5V6-QX FAQ
1.How can I place an order for BZT52H-B5V6-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-B5V6-QX 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-B5V6-QX reliable?
The price and inventory of BZT52H-B5V6-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52H-B5V6-QX is usually 5 days.
3.What payment methods are accepted for BZT52H-B5V6-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-B5V6-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-B5V6-QX?
BZT52H-B5V6-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-B5V6-QX 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-B5V6-QX?
For technical support, including BZT52H-B5V6-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-B5V6-QX requirements.
6.How does Aetrix verify that BZT52H-B5V6-QX is sourced from the original manufacturer or authorized distributors?
All BZT52H-B5V6-QX 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-B5V6-QX meets industry standards.
7.What is the process for return or replacement of BZT52H-B5V6-QX?
All BZT52H-B5V6-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-B5V6-QX, 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-B5V6-QX part is unused and in its original packaging.
Return procedure for BZT52H-B5V6-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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