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Nexperia USA Inc. BZT52H-A2V7-QX
- Part No.:
- BZT52H-A2V7-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-A2V7-QX.pdf
- Description:
- DIODE ZENER 2.7V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:6,328
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Product details
Overview
BZT52H-A2V7-Q from Nexperia is a ±1 % tolerance Zener diode in SOD123F package, rated for 2.7 V nominal breakdown voltage at 5 mA, 830 mW total power dissipation, and qualified to AEC-Q101 for automotive voltage regulation and reference applications.
For engineers reviewing the BZT52H-A2V7-Q datasheet, BZT52H-A2V7-Q pinout, BZT52H-A2V7-Q application, or BZT52H-A2V7-Q equivalent, this part supports precision low-voltage biasing, overvoltage clamping in engine control units, and stable reference generation in ADAS sensor interfaces where tight tolerance and automotive-grade reliability are required.
Technical Context
This Zener diode operates in reverse-bias breakdown mode with a nominal VZ of 2.7 V (A-grade, ±1 %), specified at IZ = 5 mA. Its differential resistance is ≤500 Ω, enabling stable regulation under moderate current variation.
It features a negative temperature coefficient of −3.5 mV/K at IZ = 5 mA and is mounted on FR4 PCB with single-sided copper and tin-plated pads, achieving Rth(j-a) = 330 K/W in free air and Rth(j-sp) = 70 K/W to cathode solder point.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (Nominal) | 2.7 V at IZ = 5 mA - precise low-voltage reference for 3.3 V rail monitoring or microcontroller reset circuitry |
| Tolerance | ±1 % - ensures consistent regulation across production batches in safety-critical automotive modules |
| Ptot | 830 mW at Tamb ≤ 25 °C - supports sustained operation in compact under-hood electronics with minimal heatsinking |
| rdif | ≤500 Ω - limits output voltage drift under load current changes up to ±1 mA |
| IR @ VR = 1 V | ≤20 μA - ensures low leakage in battery-backed circuits and sleep-mode power domains |
| Tj max | 150 °C - enables reliable operation in high-temperature engine compartment environments |
| AEC-Q101 Qualified | Yes - validated for automotive use per stress test qualification standard for discrete semiconductors |
Pinout & Package
SOD123F surface-mount plastic package: 2-terminal, flat lead, small outline (3.5 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; reverse-bias polarity must be maintained for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q101 compliant - meets stress test requirements for vibration, temperature cycling, and HTRB in automotive ECUs |
| Low-profile packaging | SOD123F footprint - enables high-density layout on space-constrained ADAS camera modules and body control units |
| Three tolerance grades | ±1 % (A), ±2 % (B), ~±5 % (C) - allows cost/performance trade-off selection without redesigning PCB layout |
| Thermal performance | Rth(j-sp) = 70 K/W - facilitates efficient heat transfer to PCB copper pour, reducing thermal derating in ambient >85 °C |
| Wide voltage range | 2.4 V to 75 V (E24 series) - supports common rail voltages across 12 V, 24 V, and 48 V automotive architectures |
Applications
| Engine Control Unit (ECU) Voltage Monitoring | ADAS Camera Module Reference |
|---|---|
Use Scenario: Real-time monitoring of 5 V supply rail integrity in gasoline/diesel ECU mainboard. IC Role / Device Role / Timing Role: Zener reference for comparator input, triggering fault flag when rail drops below 4.75 V. Use Value: ±1 % VZ tolerance ensures detection threshold remains within 25 mV of design target across temperature and lifetime. |
Use Scenario: Providing stable 2.7 V bias to image sensor analog front-end in rear-view camera module. IC Role / Device Role / Timing Role: Low-noise voltage reference for ADC reference buffer and pixel gain control circuitry. Use Value: 500 Ω differential resistance minimizes output impedance-induced gain error during dynamic exposure changes. |
| Infotainment System Power Sequencing | Electric Power Steering (EPS) Sensor Interface |
Use Scenario: Generating enable signal for LDO startup sequence when 12 V battery reaches stable operating voltage. IC Role / Device Role / Timing Role: Zener-clamped voltage divider sets threshold for power-good detection logic. Use Value: AEC-Q101 qualification guarantees immunity to thermal shock during repeated cold-start cycles in vehicle cabin. |
Use Scenario: Protecting Hall-effect position sensor inputs from transients induced by motor commutation in EPS actuator. IC Role / Device Role / Timing Role: Reverse-biased transient clamp limiting input voltage to 3.3 V tolerant interface IC. Use Value: 830 mW Ptot rating sustains 40 W surge pulses (100 μs) without degradation in steering torque feedback path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52H-B2V7-Q | ±2 % tolerance, otherwise identical VZ, rdif, and package | Acceptable in non-safety-critical subsystems like HVAC control where tighter regulation is not mandated | Select when cost reduction is prioritized over 10 mV regulation window tightening |
| MMSZ4684T1G | 2.7 V ±5 %, SOD-123 package, 500 mW Ptot, no AEC-Q101 qualification | Limited to industrial or consumer-grade applications lacking automotive environmental validation | Choose only for prototyping or non-automotive designs where qualification overhead is unnecessary |
Compared with BZT52H-A2V7-Q, the BZT52H-B2V7-Q trades 10 mV regulation accuracy for lower unit cost without altering thermal or layout behavior, while MMSZ4684T1G lacks automotive qualification and delivers 33 % lower power handling-making it unsuitable for under-hood deployment.
Availability
BZT52H-A2V7-Q is available at Aetrix Electronics and suitable for engine control units, ADAS camera modules, infotainment power sequencing, and electric power steering sensor interfaces requiring stable component supply with full traceability and long-term automotive lifecycle support.
Supply support for BZT52H-A2V7-Q 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 components including logic, discretes, MOSFETs, and bipolar transistors.
The BZT52H-Q series belongs to Nexperia's automotive-qualified Zener diode product line, engineered specifically for voltage regulation, reference, and clamping functions in harsh-environment automotive electronics.
FAQ
What is the maximum reverse current before breakdown for BZT52H-A2V7-Q?
At VR = 1 V and Tj = 25 °C, the reverse current is guaranteed ≤20 μA. This low leakage ensures minimal quiescent power draw in always-on automotive circuits such as CAN wake-up receivers and battery monitoring systems.
Can BZT52H-A2V7-Q 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, select a single higher-rated device like BZT52H-C2V7-Q (±5 %, 830 mW same package) or use external current-sharing resistors with careful derating.
Is the SOD123F package compatible with standard reflow profiles?
Yes-Nexperia specifies reflow soldering as the only recommended method. The SOD123F footprint aligns with IPC-7351B standards, and thermal characteristics assume FR4 PCB with 1 cm² cathode pad; peak temperature must not exceed 260 °C per JEDEC J-STD-020.
How does the −3.5 mV/K temperature coefficient affect regulation stability?
Over −40 °C to +125 °C, VZ shifts by approximately −350 mV-requiring system-level compensation if absolute voltage accuracy beyond ±20 mV is needed. In most automotive biasing applications, this drift is acceptable due to downstream regulation or comparator hysteresis.
BZT52H-A2V7-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):
- 2.7 V
- Tolerance:
- ±1.11%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 83 Ohms
- Current - Reverse Leakage @ Vr:
- 20 µA @ 1 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-A2V7-QX FAQ
1.How can I place an order for BZT52H-A2V7-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-A2V7-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-A2V7-QX reliable?
The price and inventory of BZT52H-A2V7-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-A2V7-QX is usually 5 days.
3.What payment methods are accepted for BZT52H-A2V7-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-A2V7-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-A2V7-QX?
BZT52H-A2V7-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-A2V7-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-A2V7-QX?
For technical support, including BZT52H-A2V7-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-A2V7-QX requirements.
6.How does Aetrix verify that BZT52H-A2V7-QX is sourced from the original manufacturer or authorized distributors?
All BZT52H-A2V7-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-A2V7-QX meets industry standards.
7.What is the process for return or replacement of BZT52H-A2V7-QX?
All BZT52H-A2V7-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-A2V7-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-A2V7-QX part is unused and in its original packaging.
Return procedure for BZT52H-A2V7-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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