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Nexperia USA Inc. BZT52H-A5V6-QX
- Part No.:
- BZT52H-A5V6-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-A5V6-QX.pdf
- Description:
- DIODE ZENER 5.6V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:3,746
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Product details
Overview
BZT52H-A5V6-QX from Nexperia is a ±1 % tolerance Zener diode in SOD123F package, rated for 5.6 V nominal breakdown voltage at 5 mA, 400 Ω maximum differential resistance, and 830 mW total power dissipation. It is AEC-Q101 qualified and used for precision voltage regulation in automotive body control modules and sensor biasing circuits.
For engineers reviewing the BZT52H-A5V6-QX datasheet, BZT52H-A5V6-QX pinout, BZT52H-A5V6-QX application, or BZT52H-A5V6-QX equivalent, this page delivers verified Zener parameters, thermal performance data, automotive qualification status, and real-world design context for voltage reference and overvoltage protection functions.
Technical Context
This Zener diode operates in reverse-bias breakdown mode with a tightly controlled 5.6 V nominal Zener voltage (VZ) at IZ = 5 mA, exhibiting a temperature coefficient of −2.0 to +2.5 mV/K and 1 μA maximum reverse current (IR) at VR = 4.0 V.
Its SOD123F package provides low thermal resistance (Rth(j-sp) = 70 K/W) and supports surface-mount reflow assembly. The device meets AEC-Q101 stress test requirements for automotive discrete semiconductors, including operating junction temperature up to 150 °C and storage temperature range of −65 to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.54 V to 5.66 V at IZ = 5 mA - defines stable regulation point with ±1 % tolerance |
| Differential Resistance (rdif) | ≤ 400 Ω - ensures minimal output voltage shift under load current variation |
| Reverse Current (IR) | ≤ 1 μA at VR = 4.0 V - guarantees low leakage in standby or sensing circuits |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA - enables use as polarity-sensitive clamp or series diode in dual-function designs |
| Thermal Resistance (Rth(j-sp)) | 70 K/W - quantifies junction-to-solder-point heat transfer efficiency for thermal layout planning |
| Non-repetitive Peak Reverse Current (IZSM) | 6.0 A at tp = 100 μs - supports transient surge suppression in automotive ESD protection networks |
Pinout & Package
The BZT52H-A5V6-QX is housed in a SOD123F surface-mount plastic package measuring 3.6 mm × 1.7 mm × 1.0 mm (L × W × H), with flat leads and cathode marked by a bar on the 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; reverse-bias configuration enables Zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| ±1 % VZ tolerance | Enables high-accuracy voltage references without external trimming in safety-critical subsystems |
| SOD123F footprint | Supports high-density PCB layouts and automated reflow soldering per IPC-J-STD-020 |
| 830 mW power rating | Permits direct regulation of low-power analog rails (e.g., 3.3 V LDO feedback dividers) without heatsinking |
| −2.0 to +2.5 mV/K tempco | Minimizes drift across −40 °C to +125 °C ambient, critical for battery monitoring accuracy |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Regulating reference voltage for microcontroller ADC inputs in door module ECUs. IC Role / Device Role / Timing Role: Zener diode provides stable 5.6 V reference for analog front-end scaling. Use Value: ±1 % VZ tolerance maintains <0.5 LSB error in 12-bit ADC measurements across temperature. |
Use Scenario: Biasing thermistor or RTD bridges in factory automation temperature transmitters. IC Role / Device Role / Timing Role: Precision Zener establishes known excitation voltage for ratiometric measurement. Use Value: Low 400 Ω rdif prevents gain error when bridge current varies with sensor resistance. |
| Automotive Lighting Driver Feedback | Power Supply Overvoltage Clamp |
Use Scenario: Setting current limit threshold in LED headlamp constant-current drivers. IC Role / Device Role / Timing Role: Zener clamps op-amp input to define precise current-sense comparator trip point. Use Value: AEC-Q101 qualification ensures reliability under vibration, thermal cycling, and load dump conditions. |
Use Scenario: Protecting 5 V logic rails from transient overvoltage events in industrial PLC I/O modules. IC Role / Device Role / Timing Role: Fast-acting Zener shunts excess energy during ESD or inductive kickback. Use Value: 6.0 A non-repetitive peak current rating handles IEC 61000-4-2 Level 4 (15 kV air) surges without failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52H-B5V6-Q | ±2 % VZ tolerance (5.49 V–5.71 V); identical package and thermal specs | Acceptable where tighter regulation not required, e.g., non-critical power rail supervision | Select for cost-sensitive designs where ±2 % stability suffices and AEC-Q101 compliance remains mandatory |
| MMSZ5232B-TP | ±5 % VZ (5.32 V–5.88 V); SOD-123 package; no AEC-Q101 qualification | Limited to commercial-grade applications; higher VZ drift and unverified automotive reliability | Use only in non-automotive consumer or industrial systems where qualification is not mandated |
Compared with BZT52H-A5V6-QX, the BZT52H-B5V6-Q trades 1 % tolerance for lower unit cost while retaining full automotive qualification, whereas MMSZ5232B-TP offers broader VZ spread and lacks AEC-Q101 validation-making it unsuitable for safety-relevant vehicle subsystems.
Availability
BZT52H-A5V6-QX is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and power supply protection circuits requiring stable component supply with guaranteed long-term sourcing.
Supply support for BZT52H-A5V6-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 essential semiconductors for automotive, industrial, and mobile markets.
The BZT52H-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for precision voltage regulation and transient protection in harsh-environment automotive electronics.
FAQ
What is the maximum continuous power dissipation for BZT52H-A5V6-QX at 85 °C ambient?
At Tamb = 85 °C, derating applies: Ptot = 830 mW × (1 − (85 − 25)/125) = 332 mW. This value assumes mounting on FR4 PCB with 1 cm² cathode pad per datasheet condition [3], and must be validated against actual board thermal design using Rth(j-a) = 150 K/W.
Can BZT52H-A5V6-QX be used in parallel for higher power handling?
No-Zener diodes exhibit negative temperature coefficients and mismatched VZ tolerances, causing current hogging and thermal runaway when paralleled. For higher power, use a single higher-rated Zener or implement active regulation with a transistor-based shunt circuit.
Is the SOD123F package compatible with standard reflow profiles?
Yes-the SOD123F package is qualified for lead-free reflow per J-STD-020, with peak temperature up to 260 °C. The recommended footprint (2.9 mm × 1.6 mm solder land, 1.1 mm × 1.1 mm paste deposits) ensures reliable wetting and mechanical strength without tombstoning.
How does the −2.0 to +2.5 mV/K temperature coefficient affect regulation accuracy over −40 °C to +125 °C?
Over this range, ΔVZ ≈ (125 − (−40)) × 2.5 mV/K = 412.5 mV worst-case drift, yielding ±7.4 % deviation from 5.6 V nominal. For tighter stability, pair with a temperature-compensated reference IC or select a Zener with near-zero tempco (e.g., 6.2 V types).
BZT52H-A5V6-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:
- ±1.07%
- 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-A5V6-QX FAQ
1.How can I place an order for BZT52H-A5V6-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-A5V6-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-A5V6-QX reliable?
The price and inventory of BZT52H-A5V6-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-A5V6-QX is usually 5 days.
3.What payment methods are accepted for BZT52H-A5V6-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-A5V6-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-A5V6-QX?
BZT52H-A5V6-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-A5V6-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-A5V6-QX?
For technical support, including BZT52H-A5V6-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-A5V6-QX requirements.
6.How does Aetrix verify that BZT52H-A5V6-QX is sourced from the original manufacturer or authorized distributors?
All BZT52H-A5V6-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-A5V6-QX meets industry standards.
7.What is the process for return or replacement of BZT52H-A5V6-QX?
All BZT52H-A5V6-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-A5V6-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-A5V6-QX part is unused and in its original packaging.
Return procedure for BZT52H-A5V6-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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