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Nexperia USA Inc. BZT52H-B6V2-QX
- Part No.:
- BZT52H-B6V2-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-B6V2-QX.pdf
- Description:
- DIODE ZENER 6.2V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,052
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Product details
Overview
BZT52H-B6V2-QX from Nexperia is a ±2 % tolerance Zener diode in SOD123F package, rated for 6.2 V nominal breakdown voltage at 5 mA, 150 Ω typical 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-B6V2-QX datasheet, BZT52H-B6V2-QX pinout, BZT52H-B6V2-QX application, or BZT52H-B6V2-QX equivalent, this page delivers verified Zener parameters, thermal resistance values (Rth(j-a) = 330 K/W), reverse current limits (IR ≤ 3 μA at VR = 4.96 V), temperature coefficient (+0.4 to +3.7 mV/K), and automotive-grade reliability data - all critical for precision biasing and overvoltage clamping in harsh-environment designs.
Technical Context
This Zener diode functions as a two-terminal voltage reference with sharp reverse-breakdown knee and low dynamic impedance. Its 6.2 V nominal Zener voltage is specified at IZ = 5 mA, with differential resistance of 150 Ω (typ) and temperature coefficient ranging from +0.4 to +3.7 mV/K depending on test current.
Designed for surface-mount use in space-constrained automotive ECUs and industrial sensors, it features a cathode-marked SOD123F package with 1 cm² cathode pad thermal layout, enabling 830 mW power handling at Tamb ≤ 25 °C and junction temperature up to 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.2 V nominal at IZ = 5 mA; ±2 % tolerance ensures stable reference within ±0.124 V under production conditions. |
| Differential Resistance (rdif) | 150 Ω typical at IZ = 5 mA; low impedance maintains voltage stability against load current variations. |
| Reverse Current (IR) | ≤ 3 μA at VR = 4.96 V (80 % of VZ); guarantees minimal leakage in standby or sensing circuits. |
| Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C with 1 cm² cathode pad; supports robust operation in thermally constrained PCB layouts. |
| Thermal Resistance (Rth(j-a)) | 330 K/W in free air; defines maximum junction-to-ambient temperature rise per watt, critical for thermal margin calculation. |
| Temperature Coefficient (SZ) | +0.4 to +3.7 mV/K at IZ = 5 mA; positive slope enables predictable drift compensation in temperature-sensitive references. |
| Forward Voltage (VF) | ≤ 0.9 V at IF = 10 mA; ensures low conduction loss when used in forward-biased protection or logic-level clamping. |
Pinout & Package
SOD123F surface-mount plastic package: 2.5–2.7 mm length × 1.5–1.7 mm width × 0.9–1.1 mm height; 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 current during Zener conduction. |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path; must be routed with low-inductance trace for transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood and body-control modules requiring lifetime reliability at 150 °C junction temperature. |
| ±2 % Zener tolerance | Tighter than standard ±5 % parts, reducing calibration overhead in precision voltage monitors and ADC reference buffers. |
| Low differential resistance | 150 Ω typical enables <10 mV output shift per 1 mA load change - essential for stable biasing of op-amps and comparators. |
| SOD123F footprint | Compatible with standard reflow profiles; 3.4–3.6 mm pad-to-pad spacing simplifies layout and supports automated optical inspection (AOI). |
| Wide operating temperature | –65 °C to +150 °C ambient range supports deployment in engine control units, battery management systems, and industrial motor drives. |
Applications
| Automotive ECU Reference | Industrial Sensor Biasing |
|---|---|
Use Scenario: Providing stable 6.2 V reference for microcontroller ADC and analog front-end in engine control units. IC Role / Device Role / Timing Role: Two-terminal shunt voltage reference maintaining fixed potential despite supply ripple and load transients. Use Value: Enables ±0.5 % measurement accuracy over –40 °C to +125 °C ambient due to low tempco and AEC-Q101 thermal cycling validation. |
Use Scenario: Biasing bridge amplifiers and RTD signal conditioners in factory-floor pressure and temperature transmitters. IC Role / Device Role / Timing Role: Precision DC reference source for Wheatstone bridge excitation and offset trimming networks. Use Value: 150 Ω rdif holds reference deviation below 0.75 mV across 0–10 mA load variation, improving sensor linearity. |
| Overvoltage Clamp | Power Supply Regulation |
Use Scenario: Protecting CAN transceiver inputs from load-dump transients in 12 V automotive networks. IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting voltage to 6.2 V ±2 % before downstream IC damage occurs. Use Value: Withstands non-repetitive 40 W surge (100 μs pulse) and clamps within 100 ns, meeting ISO 7637-2 Pulse 5a requirements. |
Use Scenario: Regulating auxiliary 6.2 V rail for EEPROM and real-time clock in industrial PLCs with unregulated 9–15 V input. IC Role / Device Role / Timing Role: Passive shunt regulator dissipating excess current to maintain constant output voltage. Use Value: Delivers 830 mW continuous dissipation with 330 K/W Rth(j-a), supporting up to 133 mA load current at 25 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52C6V2-Q | ±5 % tolerance, 150 Ω rdif, same SOD123F package and 6.2 V nominal rating. | Lower cost; acceptable where system calibration compensates for wider voltage spread. | Select when budget constraints outweigh need for tight reference stability. |
| MMSZ5234B-TP | ±5 % tolerance, 170 Ω rdif, SOD-123 package, 6.2 V nominal, not AEC-Q101 qualified. | General-purpose industrial use only; lacks automotive stress-test validation and extended temperature margin. | Choose only for non-automotive consumer or commercial equipment with ambient < 125 °C. |
Compared with BZT52H-B6V2-QX, BZT52C6V2-Q trades ±2 % precision for cost efficiency while retaining identical thermal and package specs, whereas MMSZ5234B-TP omits AEC-Q101 qualification and exhibits higher dynamic impedance - making the original part uniquely suited for high-reliability automotive voltage referencing.
Availability
BZT52H-B6V2-QX is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal conditioning, and overvoltage protection circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZT52H-B6V2-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 portfolio, engineered specifically for precision voltage reference and clamping in automotive powertrain, chassis, and body electronics where thermal robustness and parametric consistency are mandatory.
FAQ
What is the maximum reverse current at 80 % of the Zener voltage?
At VR = 4.96 V (80 % of 6.2 V), the reverse current IR is guaranteed ≤ 3 μA per the datasheet's Table 8. This low leakage ensures minimal power loss and stable quiescent operation in always-on sensor bias networks and reference dividers.
Can BZT52H-B6V2-QX replace BZT52C6V2-Q in an existing design?
Yes, it can serve as a direct drop-in replacement with improved tolerance (±2 % vs. ±5 %) and identical SOD123F footprint, thermal layout, and electrical ratings. No layout or firmware changes are needed, though system-level calibration may benefit from tighter voltage accuracy.
What is the thermal resistance from junction to solder point?
The junction-to-solder-point thermal resistance Rth(j-sp) is 70 K/W, measured at the cathode tab solder joint. This value enables accurate thermal modeling when the cathode pad is connected to a large copper pour or thermal via array for enhanced heat dissipation.
Is this device suitable for use in CAN bus protection circuits?
Yes - its 40 W non-repetitive peak reverse power rating (100 μs pulse), fast response, and AEC-Q101 qualification make it appropriate for clamping ISO 7637-2 load-dump transients on CAN PHY lines, provided series impedance limits peak current to ≤ 6.0 A as specified in Table 8.
BZT52H-B6V2-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):
- 6.2 V
- Tolerance:
- ±1.94%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 3 µA @ 4 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-B6V2-QX FAQ
1.How can I place an order for BZT52H-B6V2-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-B6V2-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-B6V2-QX reliable?
The price and inventory of BZT52H-B6V2-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-B6V2-QX is usually 5 days.
3.What payment methods are accepted for BZT52H-B6V2-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-B6V2-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-B6V2-QX?
BZT52H-B6V2-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-B6V2-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-B6V2-QX?
For technical support, including BZT52H-B6V2-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-B6V2-QX requirements.
6.How does Aetrix verify that BZT52H-B6V2-QX is sourced from the original manufacturer or authorized distributors?
All BZT52H-B6V2-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-B6V2-QX meets industry standards.
7.What is the process for return or replacement of BZT52H-B6V2-QX?
All BZT52H-B6V2-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-B6V2-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-B6V2-QX part is unused and in its original packaging.
Return procedure for BZT52H-B6V2-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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