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Nexperia USA Inc. BZT52H-C2V4-QX
- Part No.:
- BZT52H-C2V4-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-C2V4-QX.pdf
- Description:
- DIODE ZENER 2.4V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:8,831
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Product details
Overview
BZT52H-C2V4-Q from Nexperia is a ±5 % tolerance Zener diode in SOD123F package, rated for 2.20 V to 2.60 V nominal breakdown voltage at 5 mA, with 400 Ω max differential resistance and 830 mW total power dissipation, used for precision voltage regulation in automotive power supply rails.
For engineers reviewing the BZT52H-C2V4-Q datasheet, BZT52H-C2V4-Q pinout, BZT52H-C2V4-Q application, or BZT52H-C2V4-Q equivalent, this part delivers AEC-Q101-qualified Zener regulation with verified thermal performance on FR4 PCBs, stable temperature coefficient (−3.5 to 0.0 mV/K), and low reverse leakage (≤50 μA at 1 V).
Technical Context
This Zener diode operates in reverse-bias breakdown mode to maintain stable reference voltage under varying load and temperature conditions. Its design supports constant-voltage clamping and low-noise biasing in analog front-ends and microcontroller reset circuits.
It features a cathode-anode two-terminal structure with marking bar indicating cathode polarity, and is optimized for surface-mount reflow soldering per SOD123F footprint. Thermal resistance from junction to solder point is 70 K/W, enabling reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VZ | 2.20 V to 2.60 V at IZ = 5 mA - defines regulation window for low-voltage rail stabilization |
| Differential Resistance rdif | 400 Ω max - limits output impedance and voltage deviation under load current changes |
| Reverse Current IR | 50 μA max at VR = 1 V - ensures minimal quiescent power loss in standby mode |
| Total Power Dissipation Ptot | 830 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 PCB |
| Temperature Coefficient SZ | −3.5 to 0.0 mV/K - quantifies voltage drift over temperature, critical for accuracy in automotive environments |
| Junction Temperature Tj | 150 °C max - enables operation in under-hood automotive modules without derating |
| Package | SOD123F - compact 2-lead SMD outline (3.6 × 1.2 mm) with cathode-marked anisotropic thermal pad |
Pinout & Package
SOD123F is a surface-mount plastic package with two leads: anode (pin 2) and cathode (pin 1), where the cathode is identified by a marking bar on the device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; reverse-bias terminal where Zener breakdown occurs |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| ±5 % voltage tolerance | Enables cost-effective selection for non-critical regulation where tight tolerance is not required |
| 830 mW power rating | Supports higher current regulation than standard 500 mW Zeners without thermal runaway on standard PCB |
| Low thermal resistance (70 K/W) | Reduces junction-to-solder-point temperature rise, improving long-term stability in high-ambient environments |
| Cathode-marked SOD123F package | Ensures unambiguous orientation during automated placement and visual inspection |
Applications
| Automotive Body Control Module (BCM) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing 3.3 V microcontroller supply rail in door module electronics exposed to 12 V battery transients. IC Role / Device Role / Timing Role: Zener clamp providing overvoltage protection and reference voltage for LDO input stage. Use Value: Maintains regulation within 2.2–2.6 V window during load dump events, preventing MCU brownout while dissipating <830 mW. |
Use Scenario: Biasing op-amp input stage in 4–20 mA transmitter circuit operating at −40 °C to +125 °C. IC Role / Device Role / Timing Role: Precision voltage reference for current loop scaling and offset calibration. Use Value: Delivers stable 2.4 V reference with <50 μA leakage at 1 V reverse bias, minimizing sensor offset drift across temperature. |
| Consumer USB-C Power Adapter Feedback | Medical Portable Diagnostic Device |
Use Scenario: Providing feedback reference for secondary-side TL431-based regulation in isolated flyback converter. IC Role / Device Role / Timing Role: Low-power shunt reference replacing higher-cost precision references where ±5 % tolerance is acceptable. Use Value: Enables cost-optimized feedback path with 400 Ω dynamic impedance, reducing output ripple sensitivity to load variation. |
Use Scenario: Regulating bias voltage for analog front-end ADC driver in battery-powered ultrasound probe. IC Role / Device Role / Timing Role: Low-noise voltage clamp ensuring clean analog supply for 16-bit signal chain. Use Value: Achieves <0.9 V forward voltage at 10 mA and 150 °C junction rating, supporting extended runtime in thermally constrained enclosure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52H-B2V4-Q | ±2 % tolerance (2.35–2.45 V), 500 Ω rdif, 85 μA IR at 1 V | Narrower voltage spread improves accuracy in feedback loops but increases cost | Select when tighter regulation is needed and thermal margin allows higher rdif-induced error |
| MMSZ5221B-TP | ±5 % tolerance (2.28–2.52 V), 225 mW Ptot, SOD-123 package (not AEC-Q101 qualified) | Limited power handling and no automotive qualification restrict use to consumer-grade designs | Choose only for non-automotive, low-power applications where AEC-Q101 compliance is unnecessary |
Compared with BZT52H-C2V4-Q, the BZT52H-B2V4-Q offers improved voltage accuracy at the expense of higher dynamic impedance, while MMSZ5221B-TP sacrifices automotive reliability and thermal capability for lower cost in non-critical applications.
Availability
BZT52H-C2V4-Q is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor transmitters, USB-C power adapters, and portable medical diagnostics requiring stable component supply with AEC-Q101 assurance.
Supply support for BZT52H-C2V4-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 discrete and logic devices, with leadership in automotive-qualified components and energy-efficient solutions.
The BZT52H-Q series targets automotive and industrial voltage regulation needs, delivering AEC-Q101-compliant Zener diodes with enhanced power handling and thermal performance in compact SMD packages.
FAQ
What is the maximum reverse current specification for BZT52H-C2V4-Q at 1 V?
The maximum reverse current is 50 μA at VR = 1 V and Tj = 25 °C, measured under specified test conditions. This value ensures minimal standby power consumption in always-on automotive subsystems and contributes to predictable leakage behavior across temperature.
Can BZT52H-C2V4-Q be used in place of a 2.4 V Zener with ±1 % tolerance?
No - BZT52H-C2V4-Q has ±5 % tolerance (2.20–2.60 V), whereas ±1 % parts like BZT52H-A2V4-Q specify 2.37–2.43 V. Substituting introduces up to ±2.5 % additional voltage error, which may violate regulation accuracy requirements in precision feedback paths.
What is the thermal resistance from junction to solder point for this device?
Rth(j-sp) is 70 K/W when mounted on an FR4 PCB with single-sided copper, tin-plated, and a 1 cm² cathode mounting pad. This value directly determines junction temperature rise above solder point temperature and informs thermal design margins in high-ambient applications.
Is reflow soldering the only recommended assembly method?
Yes - the datasheet explicitly states "Reflow soldering is the only recommended soldering method" for the SOD123F package. Hand soldering or wave soldering risks thermal damage due to the device's small thermal mass and sensitivity to localized overheating during lead attachment.
BZT52H-C2V4-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):
- 2.4 V
- Tolerance:
- ±8.33%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 85 Ohms
- Current - Reverse Leakage @ Vr:
- 50 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-C2V4-QX FAQ
1.How can I place an order for BZT52H-C2V4-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-C2V4-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-C2V4-QX reliable?
The price and inventory of BZT52H-C2V4-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-C2V4-QX is usually 5 days.
3.What payment methods are accepted for BZT52H-C2V4-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-C2V4-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-C2V4-QX?
BZT52H-C2V4-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-C2V4-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-C2V4-QX?
For technical support, including BZT52H-C2V4-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-C2V4-QX requirements.
6.How does Aetrix verify that BZT52H-C2V4-QX is sourced from the original manufacturer or authorized distributors?
All BZT52H-C2V4-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-C2V4-QX meets industry standards.
7.What is the process for return or replacement of BZT52H-C2V4-QX?
All BZT52H-C2V4-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-C2V4-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-C2V4-QX part is unused and in its original packaging.
Return procedure for BZT52H-C2V4-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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