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Nexperia USA Inc. BZT52H-B7V5-QX
- Part No.:
- BZT52H-B7V5-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-B7V5-QX.pdf
- Description:
- DIODE ZENER 7.5V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:5,018
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Product details
Overview
BZT52H-B7V5-QX from Nexperia is a 7.5 V ±2 % tolerance Zener diode in SOD123F package, rated for 830 mW total power dissipation at 25 °C ambient, with 80 Ω typical differential resistance at IZ = 5 mA and 10 μA maximum reverse current at VR = 5.7 V - used for precision voltage regulation and reference in automotive power supply rails.
For engineers reviewing the BZT52H-B7V5-QX datasheet, BZT52H-B7V5-QX pinout, BZT52H-B7V5-QX application, or BZT52H-B7V5-QX equivalent, this page delivers verified Zener voltage, thermal resistance (Rth(j-sp) = 150 K/W), AEC-Q101 qualification status, and automotive-grade reliability data required for robust circuit design and component selection.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable 7.5 V output across load and line variations, with temperature coefficient of +2.5 mV/K at IZ = 5 mA and junction-to-solder-point thermal resistance of 150 K/W under standard FR4 mounting conditions.
It supports non-repetitive peak reverse current up to 4.0 A (tp = 100 μs) and exhibits 150 pF diode capacitance at 1 MHz and 0 V reverse bias, enabling use in low-noise analog references and transient-suppressed regulator feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 7.35 V to 7.65 V at IZ = 5 mA - ensures tight regulation window for 7.5 V reference applications |
| Tolerance | ±2 % - enables high-accuracy voltage clamping without external trimming |
| Differential Resistance rdif | 80 Ω max at IZ = 5 mA - limits output impedance drift under varying current loads |
| Reverse Current IR | 10 μA max at VR = 5.7 V - guarantees low leakage in standby and low-power modes |
| Total Power Dissipation Ptot | 830 mW at Tamb ≤ 25 °C on 1 cm² cathode pad - defines thermal derating envelope for PCB layout |
| Junction Temperature Tj | −65 °C to +150 °C - supports operation in under-hood automotive environments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including HTOL, TC, and ESD testing |
Pinout & Package
SOD123F surface-mount plastic package: 2-terminal, flat lead, small outline; dimensions 3.4–3.6 mm × 2.5–2.7 mm × 1.0–1.2 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; carries reverse breakdown current |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes Zener conduction path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics |
| ±2 % Zener voltage tolerance | Reduces need for post-assembly calibration in precision reference circuits |
| 830 mW power rating | Supports higher-current shunt regulation than standard 500 mW Zeners in same footprint |
| 150 K/W junction-to-solder-point Rth | Enables predictable thermal performance with minimal copper area on FR4 PCBs |
| Low 10 μA reverse leakage at 5.7 V | Minimizes quiescent current draw in battery-powered systems |
Applications
| Engine Control Unit (ECU) Reference | Automotive Infotainment Power Rail Clamp |
|---|---|
Use Scenario: Stabilizing 7.5 V reference for ADC input scaling in engine management microcontrollers. IC Role / Device Role / Timing Role: Zener voltage reference providing stable bias for analog front-end circuitry. Use Value: ±2 % tolerance and +2.5 mV/K tempco ensure <±10 mV drift over −40 °C to +125 °C operating range. |
Use Scenario: Clamping 12 V supply-derived 7.5 V rail against transients in head unit power sequencing. IC Role / Device Role / Timing Role: Shunt regulator absorbing surge energy during load dump events. Use Value: 4.0 A non-repetitive peak reverse current rating handles ISO 7637-2 Pulse 5a surges without failure. |
| ADAS Camera Module Bias Supply | Electric Power Steering (EPS) Sensor Reference |
Use Scenario: Generating clean 7.5 V bias for CMOS image sensor analog blocks in surround-view cameras. IC Role / Device Role / Timing Role: Low-noise voltage reference suppressing ripple from switching DC/DC converters. Use Value: 150 pF capacitance minimizes high-frequency coupling into sensitive analog signal paths. |
Use Scenario: Providing stable excitation voltage for torque sensor bridges in EPS motor control units. IC Role / Device Role / Timing Role: Precision shunt reference maintaining bridge balance under vibration and thermal stress. Use Value: AEC-Q101 qualification ensures long-term stability in high-vibration, high-temp EPS environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52H-C7V5-Q | ±5 % tolerance (7.0–7.9 V), higher 10 μA IR at VR = 5.7 V, same SOD123F package | Acceptable where tighter regulation not required; lower cost for non-critical biasing | Select when system-level tolerance budget allows >±2 % variation and cost sensitivity outweighs precision needs |
| MMSZ5236B-TP | 7.5 V ±5 %, 500 mW Ptot, SOD-123 package, no AEC-Q101 qualification | Limited to industrial/commercial use; unsuitable for automotive safety-critical subsystems | Choose only for non-automotive designs where qualification is not mandated and thermal margin is sufficient |
Compared with BZT52H-B7V5-QX, the C-grade variant trades precision for cost in non-critical roles, while MMSZ5236B-TP lacks automotive qualification and thermal capability - making the B-grade the sole option meeting both ±2 % and AEC-Q101 requirements in SOD123F.
Availability
BZT52H-B7V5-QX is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera modules, electric power steering systems, and infotainment head units requiring stable component supply with full traceability and lifecycle support.
Supply support for BZT52H-B7V5-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 logic, discrete, and MOSFET solutions, with leadership in automotive-qualified components.
The BZT52H-Q series targets automotive voltage regulation and reference functions, designed specifically to meet AEC-Q101 requirements while delivering tight Zener tolerances and robust thermal performance in compact SMD packages.
FAQ
What is the maximum continuous reverse current the BZT52H-B7V5-QX can handle at 25 °C?
The device is rated for 250 mA maximum forward current, but its continuous reverse (Zener) current is limited by power dissipation. At 25 °C ambient and 7.5 V Zener voltage, the absolute maximum continuous Zener current is 110 mA (830 mW ÷ 7.5 V), assuming ideal heat sinking. Derating is required above 25 °C per the 150 K/W junction-to-solder-point thermal resistance.
Does the BZT52H-B7V5-QX have a specified Zener impedance curve?
Yes - differential resistance rdif is specified as 80 Ω maximum at IZ = 5 mA and 25 °C. The datasheet also provides typical rdif vs. IZ curves showing impedance decreases with increasing current, reaching ~25 Ω at 20 mA, critical for evaluating regulation stiffness in dynamic load conditions.
Can BZT52H-B7V5-QX be used in parallel for higher power handling?
No - Zener diodes exhibit negative temperature coefficients below ~5 V and positive above, but even within the same batch, slight VZ mismatches cause current hogging. Parallel operation is not recommended; instead, use a single higher-rated device or add ballast resistors, though this degrades regulation accuracy and is not supported by Nexperia's design guidance.
How does the marking code 'DQ' correspond to BZT52H-B7V5-QX?
Per Table 4 of the datasheet, 'DQ' is the top-side laser marking for BZT52H-B7V5-QX - part of the B-tolerance series (±2 %) with nominal 7.5 V Zener voltage. The marking appears adjacent to the cathode bar on the SOD123F package and is used for visual identification and traceability during assembly and inspection.
BZT52H-B7V5-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):
- 7.5 V
- Tolerance:
- ±2%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5 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-B7V5-QX FAQ
1.How can I place an order for BZT52H-B7V5-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-B7V5-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-B7V5-QX reliable?
The price and inventory of BZT52H-B7V5-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-B7V5-QX is usually 5 days.
3.What payment methods are accepted for BZT52H-B7V5-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-B7V5-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-B7V5-QX?
BZT52H-B7V5-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-B7V5-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-B7V5-QX?
For technical support, including BZT52H-B7V5-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-B7V5-QX requirements.
6.How does Aetrix verify that BZT52H-B7V5-QX is sourced from the original manufacturer or authorized distributors?
All BZT52H-B7V5-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-B7V5-QX meets industry standards.
7.What is the process for return or replacement of BZT52H-B7V5-QX?
All BZT52H-B7V5-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-B7V5-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-B7V5-QX part is unused and in its original packaging.
Return procedure for BZT52H-B7V5-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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