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Nexperia USA Inc. BZT52H-B2V7-QX
- Part No.:
- BZT52H-B2V7-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-B2V7-QX.pdf
- Description:
- DIODE ZENER 2.7V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,271
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Product details
Overview
BZT52H-B2V7-QX from Nexperia is a 2.7 V ±2 % tolerance Zener diode in SOD123F package, rated for 830 mW total power dissipation at 25 °C ambient, with 500 Ω typical differential resistance at 5 mA and ≤0.9 V forward voltage at 10 mA. It serves as a precision voltage reference or shunt regulator in automotive power rail monitoring circuits.
For engineers reviewing the BZT52H-B2V7-QX datasheet, BZT52H-B2V7-QX pinout, BZT52H-B2V7-QX application, or BZT52H-B2V7-QX equivalent, this page delivers verified Zener voltage, thermal resistance, reverse current limits, AEC-Q101 qualification status, and automotive-grade mounting guidance - all confirmed from Nexperia's official product data sheet Rev. 1 (2021).
Technical Context
This device operates in reverse-bias breakdown mode to maintain stable 2.7 V output across load variations, with temperature coefficient of –3.5 to 0.0 mV/K at 5 mA. Its low 500 Ω dynamic impedance ensures minimal voltage drift under changing current conditions.
Designed for surface-mount use on FR4 PCBs with single-sided copper, it achieves 150 K/W junction-to-solder-point thermal resistance and withstands non-repetitive 6.0 A surge current (100 μs pulse) per IEC 60134 limiting values.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.7 V nominal, ±2 % tolerance at IZ = 5 mA - defines precise regulation point for low-voltage rail stabilization |
| Differential Resistance (rdif) | 500 Ω max at IZ = 5 mA - determines output voltage stability under load current variation |
| Reverse Current (IR) | ≤20 μA at VR = 1 V - ensures low leakage in standby or undervoltage detection circuits |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - enables predictable conduction during polarity protection or clamping |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C on 1 cm² cathode pad - sets maximum continuous DC power handling in automotive PCB layouts |
| Junction Temperature (Tj) | –65 °C to +150 °C - supports operation in engine bay or under-hood environments |
| AEC-Q101 Qualified | Yes - validated for automotive discrete semiconductor stress testing including HTGB, HTRB, and ESD |
Pinout & Package
SOD123F surface-mount plastic package: 2-terminal, flat lead, 3.4–3.6 mm length × 2.5–2.7 mm width × 1.0–1.2 mm height; marking bar denotes cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; accepts reverse bias for Zener conduction; marked by bar on package |
| 2 | Anode (A) | Connected to ground or lower-potential reference; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q101 qualified - meets stress test requirements for under-hood and body control module deployment |
| Power rating | 830 mW total dissipation - enables robust regulation without heatsinking in compact SMD layouts |
| Voltage tolerance | ±2 % at 5 mA - tighter than standard ±5 % Zeners, reducing calibration overhead in precision references |
| Thermal performance | 150 K/W junction-to-solder-point resistance - allows accurate thermal modeling for PCB copper area planning |
| Surge capability | 6.0 A non-repetitive peak reverse current (100 μs) - sustains transient overvoltage events in 12 V automotive systems |
Applications
| Engine Control Unit (ECU) Reference | Body Control Module (BCM) Voltage Monitor |
|---|---|
Use Scenario: Stabilizing 2.7 V reference for microcontroller ADC input in engine management systems. IC Role / Device Role / Timing Role: Shunt regulator providing fixed bias voltage to analog front-end circuitry. Use Value: ±2 % tolerance and –3.5 to 0.0 mV/K temperature coefficient ensure <±10 mV drift over –40 °C to +125 °C operating range. |
Use Scenario: Detecting battery undervoltage condition (<11.5 V) via resistor divider into comparator input. IC Role / Device Role / Timing Role: Precision Zener clamp defining threshold voltage for wake-up logic. Use Value: 20 μA max reverse leakage at 1 V prevents false triggering during low-power sleep modes. |
| Infotainment System Power Sequencing | ADAS Camera Module Bias Supply |
Use Scenario: Generating clean 2.7 V enable signal for LDO sequencing in multi-rail infotainment head units. IC Role / Device Role / Timing Role: Voltage reference for power-good detection circuitry. Use Value: 500 Ω differential resistance minimizes voltage droop during 10–100 μA enable-current transients. |
Use Scenario: Providing stable bias to image sensor analog supply pins in rear-view camera modules. IC Role / Device Role / Timing Role: Low-noise shunt regulator isolating sensitive analog rails from digital switching noise. Use Value: AEC-Q101 qualification and 150 °C max junction temperature support continuous operation near heat-generating SoCs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52H-A2V7-Q | ±1 % tolerance (vs. ±2 %), same 2.7 V nominal, identical SOD123F package | Higher precision required in metrology or calibration subsystems | Select when tighter initial accuracy outweighs cost premium and availability constraints |
| BZX84-C2V7 | ±5 % tolerance, SOT23 package, 350 mW Ptot, no AEC-Q101 qualification | Non-automotive consumer or industrial applications with relaxed accuracy and power needs | Choose only for cost-sensitive, non-automotive designs where thermal derating and qualification are not required |
Compared with BZT52H-B2V7-QX, the ±1 % A2V7 variant improves initial accuracy but offers no thermal or surge advantage, while the BZX84-C2V7 sacrifices automotive reliability, power rating, and precision for lower cost and smaller footprint - making BZT52H-B2V7-QX optimal for AEC-compliant 2.7 V regulation where 2 % tolerance suffices.
Availability
BZT52H-B2V7-QX is available at Aetrix Electronics and suitable for automotive ECU reference design, BCM voltage monitoring, and ADAS camera bias supply requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZT52H-B2V7-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 automotive Zener diode product line, engineered specifically for precision voltage regulation in harsh-environment automotive electronics - emphasizing AEC-Q101 compliance, thermal robustness, and tight parametric control.
FAQ
What is the maximum continuous reverse current for BZT52H-B2V7-QX at 25 °C?
The device has no specified maximum continuous reverse current; instead, its operation is governed by power dissipation limits. At 25 °C ambient, it supports up to 307 mA continuous reverse current (2.7 V × 307 mA ≈ 830 mW), assuming ideal thermal conditions and no derating. Real-world design must apply thermal resistance calculations based on PCB copper area.
How does the temperature coefficient affect regulation accuracy over automotive temperature range?
With a temperature coefficient of –3.5 to 0.0 mV/K at 5 mA, BZT52H-B2V7-QX exhibits worst-case drift of approximately –21 mV from –40 °C to +125 °C (165 K × –0.127 mV/K average), resulting in ~0.8 % total voltage change relative to 2.7 V - well within typical automotive reference tolerances for non-critical sensing functions.
Can BZT52H-B2V7-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, select a single higher-rated Zener (e.g., BZT52H-B3V3-Q) or implement active regulation with a transistor-based shunt amplifier.
Is the SOD123F package compatible with standard reflow soldering profiles?
Yes - Nexperia specifies reflow soldering as the only recommended method for SOD123F. The package supports JEDEC J-STD-020D-compliant profiles, with peak temperature ≤260 °C and time above liquidus 60–90 seconds. Footprint dimensions (2.8 × 1.6 mm solder land, dual 1.1 mm pads) are defined in Figure 12 of the datasheet.
BZT52H-B2V7-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:
- ±1.85%
- 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-B2V7-QX FAQ
1.How can I place an order for BZT52H-B2V7-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-B2V7-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-B2V7-QX reliable?
The price and inventory of BZT52H-B2V7-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-B2V7-QX is usually 5 days.
3.What payment methods are accepted for BZT52H-B2V7-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-B2V7-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-B2V7-QX?
BZT52H-B2V7-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-B2V7-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-B2V7-QX?
For technical support, including BZT52H-B2V7-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-B2V7-QX requirements.
6.How does Aetrix verify that BZT52H-B2V7-QX is sourced from the original manufacturer or authorized distributors?
All BZT52H-B2V7-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-B2V7-QX meets industry standards.
7.What is the process for return or replacement of BZT52H-B2V7-QX?
All BZT52H-B2V7-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-B2V7-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-B2V7-QX part is unused and in its original packaging.
Return procedure for BZT52H-B2V7-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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