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Nexperia USA Inc. BZT52H-C10-QX
- Part No.:
- BZT52H-C10-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-C10-QX.pdf
- Description:
- DIODE ZENER 10V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,288
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Product details
Overview
BZT52H-C10-QX from Nexperia is a ±5 % tolerance Zener diode in SOD123F package, rated for 10 V nominal breakdown voltage at 5 mA, 830 mW total power dissipation, and qualified to AEC-Q101 for automotive voltage regulation and reference applications.
For engineers reviewing the BZT52H-C10-QX datasheet, BZT52H-C10-QX pinout, BZT52H-C10-QX application, or BZT52H-C10-QX equivalent, this page delivers verified Zener parameters, thermal resistance values, reverse current limits, temperature coefficient behavior, and automotive-grade reliability context - all specific to the C-tolerance (±5 %) 10 V variant.
Technical Context
This Zener diode operates in reverse-bias breakdown mode with a specified VZ = 9.4–10.6 V at IZ = 5 mA and exhibits a positive temperature coefficient of +0.2 to +0.7 mV/K across its operating current range. Its differential resistance is ≤70 Ω, enabling stable regulation under moderate load transients.
Designed for surface-mount use on FR4 PCBs, it features a cathode-marked SOD123F package with Rth(j-sp) = 70 K/W and Rth(j-a) = 150–330 K/W depending on copper pad area, supporting thermal management in compact automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VZ (Nominal) | 10 V - precise DC reference voltage at 5 mA test current, ±5 % tolerance band (9.4–10.6 V) |
| Ptot | 830 mW - maximum continuous power dissipation at Tamb ≤ 25 °C with 1 cm² cathode pad |
| IZSM | 3.0 A - non-repetitive peak reverse surge current (100 μs pulse, Tj = 25 °C) |
| rdif | ≤70 Ω - low dynamic impedance ensures minimal output voltage variation under changing load current |
| SZ | +0.2 to +0.7 mV/K - predictable positive temperature drift enables compensation in reference circuits |
| IR @ VR = 8 V | ≤10 μA - low leakage supports stable biasing in high-impedance sensing nodes |
| Tj max | 150 °C - junction temperature limit compatible with under-hood automotive environments |
Pinout & Package
SOD123F surface-mount plastic package: 2-terminal, flat lead, cathode marked by bar; dimensions 3.4–3.6 mm × 2.5–2.7 mm × 1.0–1.2 mm; optimized for reflow soldering only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking bar identifies this terminal; carries reverse current during Zener operation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; completes reverse-bias path for voltage reference function |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics |
| ±5 % VZ tolerance | Cost-optimized precision for non-critical regulation where tighter tolerances are unnecessary |
| 830 mW power rating | Supports higher-current shunt regulation than standard 500 mW Zeners without derating at 25 °C |
| SOD123F footprint | Compact 3.5 × 2.6 mm outline enables dense PCB layouts while maintaining manufacturability |
| Low rdif (≤70 Ω) | Minimizes output voltage deviation across 1–10 mA operating range in feedback or reference paths |
Applications
| Automotive ECU Power Supervision | Industrial Sensor Bias Reference |
|---|---|
Use Scenario: Monitoring 12 V battery rail in engine control unit to detect undervoltage/overvoltage faults. IC Role / Device Role / Timing Role: Zener clamps reference voltage for comparator input; provides stable 10 V threshold independent of supply ripple. Use Value: Enables reliable fault detection over -40 to +125 °C ambient with AEC-Q101 proven reliability and <10 μA leakage at 8 V. |
Use Scenario: Supplying precise bias voltage to analog front-end of pressure sensor in factory automation system. IC Role / Device Role / Timing Role: Acts as passive voltage reference for op-amp gain-setting network; replaces active references where cost and size matter. Use Value: Delivers 10 V ±5 % stability with ≤70 Ω dynamic impedance, minimizing sensor offset drift due to supply variation. |
| Consumer Power Adapter Feedback | Telecom Line Card Voltage Clamp |
Use Scenario: Secondary-side voltage reference in isolated AC/DC adapter for USB-C PD compliance. IC Role / Device Role / Timing Role: Sets feedback threshold for optocoupler-driven regulation loop; interfaces directly with TL431 reference input. Use Value: Provides 10 V reference with 830 mW dissipation headroom for transient surges, reducing need for external series resistor. |
Use Scenario: Overvoltage protection clamp on 48 V DC telecom line card interface. IC Role / Device Role / Timing Role: Shunts excess energy during lightning-induced transients; placed before downstream DC-DC converter input. Use Value: Withstands 3.0 A non-repetitive surge (100 μs), limiting voltage to ≤10.6 V while maintaining low leakage (<10 μA) during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52H-B10-Q | ±2 % VZ tolerance (9.8–10.2 V), same SOD123F package and 830 mW rating | Higher precision required in analog measurement circuits where 2 % error budget is mandated | Select when tighter regulation accuracy justifies modest cost increase over C-grade |
| MMSZ5240B-TP | 10 V nominal, ±5 %, but rated for only 500 mW Ptot and uses SOD-123 package (not SOD123F) | Lower power handling limits use in high-surge or continuous-regulation scenarios | Acceptable only in space-constrained consumer designs where 500 mW suffices and thermal margin is ample |
Compared with BZT52H-C10-QX, the BZT52H-B10-Q offers improved voltage accuracy at identical thermal and surge capability, while MMSZ5240B-TP trades 330 mW lower power rating and less robust thermal resistance for broader distributor availability - making the C10-QX optimal for automotive and industrial applications demanding both AEC-Q101 compliance and sustained 830 mW operation.
Availability
BZT52H-C10-QX is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor signal conditioning, and telecom line-card protection requiring stable component supply with AEC-Q101 traceability and long-term production continuity.
Supply support for BZT52H-C10-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 consumer markets.
The BZT52H-Q series belongs to Nexperia's AEC-Q101-qualified Zener diode portfolio, engineered specifically for robust voltage reference and regulation in harsh automotive environments where thermal stability and surge resilience are critical.
FAQ
What is the maximum continuous reverse current this Zener can handle at 25 °C ambient?
The BZT52H-C10-QX supports up to 83 mA continuous reverse current at 25 °C ambient when dissipating its full 830 mW rating (Ptot/VZ ≈ 830 mW / 10 V). This assumes proper PCB copper area per datasheet condition: 1 cm² cathode pad on FR4 with single-sided tin-plated copper.
Does the SOD123F package differ electrically from standard SOD-123?
Yes - the SOD123F variant features an enhanced thermal pad design that reduces Rth(j-sp) to 70 K/W (vs. ~100 K/W for standard SOD-123), enabling higher power handling. Its cathode tab is optimized for solder heat transfer, confirmed in Nexperia's thermal characterization data (Table 6).
Can this Zener be used in parallel for higher current capability?
No - Zener diodes exhibit manufacturing spread in VZ, causing current hogging if paralleled. The BZT52H-C10-QX has ±5 % tolerance (9.4–10.6 V), so mismatched units would force >90 % of current through the lowest-VZ device, risking thermal runaway even with matched heatsinking.
Is the temperature coefficient linear across the full operating current range?
No - the temperature coefficient (SZ) varies nonlinearly with test current: +0.2 mV/K at IZ = 1 mA, rising to +0.7 mV/K at IZ = 5 mA (Table 8). This curvature must be accounted for in precision temperature-compensated reference designs.
BZT52H-C10-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):
- 10 V
- Tolerance:
- ±6%
- Power - Max:
- 375 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 200 nA @ 7 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-C10-QX FAQ
1.How can I place an order for BZT52H-C10-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-C10-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-C10-QX reliable?
The price and inventory of BZT52H-C10-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-C10-QX is usually 5 days.
3.What payment methods are accepted for BZT52H-C10-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-C10-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-C10-QX?
BZT52H-C10-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-C10-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-C10-QX?
For technical support, including BZT52H-C10-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-C10-QX requirements.
6.How does Aetrix verify that BZT52H-C10-QX is sourced from the original manufacturer or authorized distributors?
All BZT52H-C10-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-C10-QX meets industry standards.
7.What is the process for return or replacement of BZT52H-C10-QX?
All BZT52H-C10-QX units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-C10-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-C10-QX part is unused and in its original packaging.
Return procedure for BZT52H-C10-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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