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Nexperia USA Inc. BZT52H-C62-QX
- Part No.:
- BZT52H-C62-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-C62-QX.pdf
- Description:
- DIODE ZENER 62V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:6,702
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Product details
Overview
BZT52H-C62-QX from Nexperia is a ±5 % tolerance Zener diode in SOD123F package, rated for 62 V nominal breakdown voltage at IZ = 2 mA, with 830 mW total power dissipation and AEC-Q101 qualification for automotive voltage regulation.
For engineers reviewing the BZT52H-C62-QX datasheet, BZT52H-C62-QX pinout, BZT52H-C62-QX application, or BZT52H-C62-QX equivalent, this part supports precision biasing, overvoltage clamping, and reference generation in space-constrained automotive ECUs where thermal robustness and production-grade reliability are required.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to maintain stable voltage across its terminals under varying load and temperature conditions. Its differential resistance of 400 Ω at IZ = 2 mA and temperature coefficient of +0.05 mV/K (typical) ensure predictable regulation behavior in feedback loops and reference circuits.
The device uses silicon planar technology with cathode-anode polarity defined by a marking bar on the SOD123F body. It is designed for surface-mount reflow soldering only, with thermal resistance from junction to solder point at 70 K/W when mounted per specified footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VZ | 62 V nominal at IZ = 2 mA; actual range 58.0–66.0 V per ±5 % tolerance band |
| Power Dissipation Ptot | 830 mW at Tamb ≤ 25 °C; derates linearly above 25 °C with Rth(j-a) = 330 K/W |
| Differential Resistance rdif | 400 Ω max at IZ = 2 mA; defines voltage regulation stiffness under dynamic current changes |
| Reverse Current IR | ≤140 μA at VR = 49.6 V (80 % of VZ); ensures low leakage in standby bias networks |
| Forward Voltage VF | ≤0.9 V at IF = 10 mA; enables use as polarity-sensitive clamp in bidirectional protection schemes |
| Thermal Resistance Rth(j-sp) | 70 K/W from junction to cathode solder point; critical for thermal design in high-density PCB layouts |
| AEC-Q101 Qualified | Qualified per Automotive Electronics Council stress test standard; validated for under-hood ECU applications |
Pinout & Package
SOD123F is a small-outline, flat-lead, surface-mount plastic package with two terminals and a cathode-marking bar. Dimensions: 3.6 mm × 1.7 mm × 1.0 mm (L × W × H), with 0.55 mm lead pitch and 1.2 mm cathode pad area for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; primary heat path to PCB copper |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-bias polarity must be observed for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q101 qualified for engine control units, body electronics, and ADAS sensor modules |
| Three tolerance grades | ±1 %, ±2 %, and ±5 % options; C-grade (±5 %) balances cost and performance for non-critical references |
| High surge capability | Non-repetitive peak reverse current IZSM = 0.3 A (100 μs pulse); supports transient overvoltage suppression |
| Low thermal resistance | Rth(j-sp) = 70 K/W enables >600 mW usable power at 85 °C ambient in typical automotive layout |
| Wide voltage range | 62 V nominal fits 48 V battery system clamping and 36 V logic rail stabilization in commercial vehicles |
Applications
| Engine Control Unit (ECU) Reference | ADAS Camera Power Clamp |
|---|---|
Use Scenario: Provides stable 62 V reference for analog-to-digital converter input scaling in diesel ECU fuel injection timing circuits. IC Role / Device Role / Timing Role: Zener voltage reference source for precision ADC bias network. Use Value: ±5 % tolerance and <150 °C junction rating enable reliable operation across full automotive temperature range without recalibration. |
Use Scenario: Clamps transients on 48 V camera power rail during load dump events in surround-view systems. IC Role / Device Role / Timing Role: Overvoltage protection element placed between power input and DC-DC converter input. Use Value: 0.3 A non-repetitive surge rating absorbs ISO 7637-2 Pulse 5a energy without failure, preserving downstream PMIC. |
| Body Control Module (BCM) Bias Network | Electric Power Steering (EPS) Sensor Supply |
Use Scenario: Generates clean 62 V bias for Hall-effect position sensor signal conditioning in door module actuators. IC Role / Device Role / Timing Role: Voltage regulation node for op-amp supply rails in analog front-end circuitry. Use Value: 400 Ω differential resistance minimizes output impedance shift under sensor current variations, maintaining signal integrity. |
Use Scenario: Stabilizes auxiliary 62 V rail feeding resolver-to-digital converter in EPS motor control board. IC Role / Device Role / Timing Role: Precision voltage reference for excitation signal amplitude control. Use Value: +0.05 mV/K temperature coefficient ensures <±0.3 V drift over –40 °C to +125 °C, meeting ASIL-B functional safety margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52H-B62-Q | ±2 % tolerance (vs. ±5 %); 150 Ω rdif at IZ = 2 mA | Higher precision needed for closed-loop feedback references | Select when tighter regulation stability outweighs cost sensitivity |
| MMSZ5262ET1G | ±5 % tolerance but SOD-123 package (not SOD123F); 500 mW Ptot; no AEC-Q101 qualification | Industrial or consumer-grade 48 V systems without automotive qualification requirement | Choose only for non-automotive designs where qualification is not mandated |
Compared with BZT52H-C62-QX, the BZT52H-B62-Q offers improved regulation accuracy at higher cost and identical automotive qualification, while MMSZ5262ET1G provides compatible electrical specs but lacks AEC-Q101 validation and thermal performance for under-hood deployment.
Availability
BZT52H-C62-QX is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera modules, and electric power steering systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BZT52H-C62-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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and mobile markets.
The BZT52H-Q series belongs to Nexperia's automotive-qualified Zener diode product line, engineered specifically for voltage regulation, clamping, and reference functions in harsh-environment electronic control modules.
FAQ
What is the maximum reverse voltage before breakdown for BZT52H-C62-QX?
The guaranteed minimum breakdown voltage is 58.0 V at IZ = 2 mA, with upper limit 66.0 V per ±5 % tolerance. At 80 % of VZ (49.6 V), reverse current remains ≤140 μA - confirming stable non-breakdown behavior below threshold.
Can BZT52H-C62-QX be used in parallel for higher power handling?
No - Zener diodes exhibit negative temperature coefficients at higher voltages and mismatched VZ tolerances cause current hogging. Parallel operation is not recommended; instead, use a single higher-power device or external current-sharing resistors if absolutely necessary.
Is the SOD123F package compatible with standard reflow profiles?
Yes - the device is qualified for lead-free reflow soldering only, with peak temperature up to 260 °C. The recommended footprint (Fig. 12) specifies 2.9 mm × 1.6 mm solder land per pad and requires strict adherence to IPC-J-STD-020 moisture sensitivity level (MSL) 1 handling.
How does temperature affect the 62 V regulation point?
The temperature coefficient is +0.05 mV/K (typical), meaning VZ increases ~3.1 V over the full –40 °C to +125 °C operating range. This positive drift is inherent to 62 V Zeners and must be accounted for in precision reference designs.
BZT52H-C62-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):
- 62 V
- Tolerance:
- ±6.45%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 140 Ohms
- Current - Reverse Leakage @ Vr:
- 50 nA @ 43.4 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-C62-QX FAQ
1.How can I place an order for BZT52H-C62-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-C62-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-C62-QX reliable?
The price and inventory of BZT52H-C62-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-C62-QX is usually 5 days.
3.What payment methods are accepted for BZT52H-C62-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-C62-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-C62-QX?
BZT52H-C62-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-C62-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-C62-QX?
For technical support, including BZT52H-C62-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-C62-QX requirements.
6.How does Aetrix verify that BZT52H-C62-QX is sourced from the original manufacturer or authorized distributors?
All BZT52H-C62-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-C62-QX meets industry standards.
7.What is the process for return or replacement of BZT52H-C62-QX?
All BZT52H-C62-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-C62-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-C62-QX part is unused and in its original packaging.
Return procedure for BZT52H-C62-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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