Nexperia USA Inc. BZT52H-C6V2-QX
- Part No.:
- BZT52H-C6V2-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-C6V2-QX.pdf
- Description:
- DIODE ZENER 6.2V 375MW SOD123F
- Quantity:
- Payment:

- Shipping:

Inventory:7,140
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Product details
Overview
BZT52H-C6V2-QX from Nexperia is a Zener voltage regulator diode in SOD123F package, rated for 6.2 V nominal breakdown voltage at 5 mA, ±5 % tolerance, 150 Ω typical differential resistance, and qualified to AEC-Q101 for automotive power rail stabilization and overvoltage clamping.
For engineers reviewing the BZT52H-C6V2-QX datasheet, BZT52H-C6V2-QX pinout, BZT52H-C6V2-QX application, or BZT52H-C6V2-QX equivalent, this part supports precision voltage reference, ESD protection, and reverse-biased regulation in space-constrained automotive ECUs, sensor signal conditioning circuits, and low-power supply monitoring paths where thermal stability and automotive qualification are mandatory.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal VZ of 6.2 V at IZ = 5 mA, exhibiting a temperature coefficient of +0.4 to +3.7 mV/K and low differential resistance (150 Ω typ) for stable regulation under varying load currents. It maintains specified performance across −65 °C to +150 °C ambient and junction temperatures.
Designed for surface-mount use on FR4 PCBs with single-sided copper, it delivers 830 mW total power dissipation at Tamb ≤ 25 °C and achieves 70 K/W thermal resistance from junction to solder point-critical for reliability in engine bay and ADAS module environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.80 V to 6.60 V at IZ = 5 mA - defines tight regulation window for 6.2 V nominal rail |
| Tolerance | ±5 % - enables cost-optimized selection for non-critical reference applications |
| Differential Resistance (rdif) | 150 Ω max at IZ = 5 mA - ensures minimal output voltage shift under load variation |
| Reverse Current (IR) | ≤ 3 μA at VR = 4.0 V - guarantees low leakage in standby and sleep modes |
| Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - supports continuous operation in thermally managed automotive PCB layouts |
| Junction Temperature (Tj) | −65 °C to +150 °C - meets under-hood thermal requirements without derating |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including HTOL, TC, and ESD testing |
Pinout & Package
SOD123F surface-mount plastic package: 2.5–2.7 mm length × 1.0–1.2 mm width × 0.9–1.0 mm height; cathode marked by bar; optimized for reflow soldering on standard FR4 PCBs with 1 cm² cathode pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; polarity marker determines reverse-bias orientation for Zener operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes current path during breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements - eliminates need for additional qualification effort |
| ±5 % voltage tolerance | Enables cost-effective replacement of tighter-tolerance parts where 6.2 V ±0.31 V is sufficient for clamping or biasing |
| 830 mW power rating | Supports sustained 133 mA Zener current at 6.2 V - adequate for transient suppression and reference buffering |
| Low thermal resistance (70 K/W j-to-sp) | Minimizes junction temperature rise during pulsed surges - improves long-term reliability in cyclic thermal environments |
| SOD123F footprint compatibility | Matches industry-standard 0805-equivalent land pattern - simplifies PCB layout reuse and assembly process integration |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing 5 V microcontroller supply rail against battery transients in door module PCBs. IC Role / Device Role / Timing Role: Zener shunt regulator clamping voltage spikes above 6.2 V while sinking excess current to ground. Use Value: Prevents MCU brownout or latch-up during load dump events up to ISO 7637-2 Pulse 5a, leveraging AEC-Q101 robustness. |
Use Scenario: Providing stable 6.2 V reference for 12-bit ADC input scaling in pressure transducer front-end. IC Role / Device Role / Timing Role: Precision voltage reference source with <±5 % initial accuracy and <150 Ω dynamic impedance. Use Value: Enables ±0.5 % full-scale measurement accuracy without trimming, supported by low tempco (+0.4 to +3.7 mV/K). |
| Consumer Appliance Power Monitoring | LED Driver Overvoltage Protection |
Use Scenario: Detecting AC line dropout via rectified DC rail monitoring in smart washing machine control board. IC Role / Device Role / Timing Role: Reverse-biased Zener used as threshold detector feeding comparator input. Use Value: Delivers repeatable 6.2 V trip point with <3 μA leakage at 4 V - minimizes false triggers during low-voltage sags. |
Use Scenario: Clamping transient voltage spikes across constant-current LED string in automotive interior lighting. IC Role / Device Role / Timing Role: Fast-acting shunt protector diverting surge energy away from LED driver IC. Use Value: Withstands 40 W non-repetitive peak power (100 μs pulse), protecting LEDs rated for 6.8 V max reverse. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52B-C6V2-Q | ±2 % tolerance, 100 Ω max rdif, same SOD123F package | Higher precision required for reference buffers; tighter tempco (−2.0 to +2.5 mV/K) | Select when ±2 % VZ accuracy and lower dynamic impedance are critical for analog sensing |
| MMSZ5234B-TP | 6.2 V ±5 %, SOD-123 package, 500 mW Ptot, no AEC-Q101 qualification | Cost-sensitive consumer designs without automotive reliability requirements | Choose only for non-automotive applications where 500 mW rating and lack of AEC validation are acceptable |
Compared with BZT52B-C6V2-Q, this part trades precision for cost and broader tolerance; versus MMSZ5234B-TP, it adds AEC-Q101 qualification and 66 % higher power handling-making it the sole choice for production automotive systems requiring both reliability and thermal margin.
Availability
BZT52H-C6V2-QX is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and LED lighting protection requiring stable component supply with guaranteed AEC-Q101 compliance and traceable lot-level documentation.
Supply support for BZT52H-C6V2-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 efficient manufacturing.
The BZT52H-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for voltage regulation, clamping, and reference functions in harsh-environment automotive and industrial control systems.
FAQ
What is the maximum reverse current at 4.0 V for BZT52H-C6V2-QX?
The reverse current (IR) is guaranteed ≤ 3 μA at VR = 4.0 V and Tj = 25 °C. This low leakage ensures minimal power loss in always-on monitoring circuits and preserves battery life in low-power automotive modules.
Can BZT52H-C6V2-QX replace BZT52C6V2 in an existing design?
Yes-BZT52H-C6V2-QX shares identical electrical specs, SOD123F package, and marking code BD, but adds AEC-Q101 qualification and improved thermal resistance (70 K/W vs. ~120 K/W). No layout or schematic changes are needed for automotive upgrades.
What is the non-repetitive peak reverse power dissipation rating?
It is rated at 40 W for tp = 100 μs pulses at Tamb = 25 °C. This enables robust transient suppression for ISO 7637-2 Pulse 1 and Pulse 2b events without device failure, provided PCB thermal design meets specified mounting pad area.
How does the temperature coefficient affect regulation accuracy over −40 °C to +125 °C?
At IZ = 5 mA, the temperature coefficient ranges from +0.4 to +3.7 mV/K. Over −40 °C to +125 °C, this introduces up to ±100 mV drift from nominal 6.2 V-acceptable for clamping but requires compensation in precision reference applications.
BZT52H-C6V2-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:
- ±6.45%
- 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-C6V2-QX FAQ
1.How can I place an order for BZT52H-C6V2-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-C6V2-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-C6V2-QX reliable?
The price and inventory of BZT52H-C6V2-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-C6V2-QX is usually 5 days.
3.What payment methods are accepted for BZT52H-C6V2-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-C6V2-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-C6V2-QX?
BZT52H-C6V2-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-C6V2-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-C6V2-QX?
For technical support, including BZT52H-C6V2-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-C6V2-QX requirements.
6.How does Aetrix verify that BZT52H-C6V2-QX is sourced from the original manufacturer or authorized distributors?
All BZT52H-C6V2-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-C6V2-QX meets industry standards.
7.What is the process for return or replacement of BZT52H-C6V2-QX?
All BZT52H-C6V2-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-C6V2-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-C6V2-QX part is unused and in its original packaging.
Return procedure for BZT52H-C6V2-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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