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Nexperia USA Inc. BZT52H-A10X
- Part No.:
- BZT52H-A10X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123F
- Datasheet:
-
BZT52H-A10X.pdf
- Description:
- DIODE ZENER 10V 375MW SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:4,094
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Product details
Overview
BZT52H-A10X from Nexperia is a ±1 % tolerance Zener voltage regulator diode in SOD123F package, rated for 10 V nominal breakdown voltage at 5 mA, 830 mW total power dissipation, and 70 Ω maximum differential resistance - used for precision voltage reference and overvoltage protection in low-power DC rails.
For engineers reviewing the BZT52H-A10X datasheet, BZT52H-A10X pinout, BZT52H-A10X application, or BZT52H-A10X equivalent, this page delivers verified Zener parameters, thermal resistance (70 K/W junction-to-solder point), reverse current (≤0.1 μA at 7.6 V), temperature coefficient (+0.2 mV/K), and SOD123F footprint compatibility for PCB layout and reliability validation.
Technical Context
This Zener diode operates in reverse-bias breakdown mode to maintain stable 10 V regulation across load and line variations, with tight ±1 % initial tolerance and low 70 Ω dynamic impedance ensuring minimal output voltage drift under changing current conditions.
Designed for surface-mount use on FR4 PCBs with single-sided copper, it leverages a 1 cm² cathode pad for thermal management, achieving 70 K/W junction-to-solder-point thermal resistance and supporting continuous operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VZ) | 9.90 V to 10.10 V at IZ = 5 mA - ensures precise 10 V reference within ±1 % tolerance for analog sensing and supply monitoring. |
| Differential Resistance (rdif) | 70 Ω max at IZ = 5 mA - limits output voltage variation to <0.35 V per 5 mA current change, critical for stable biasing. |
| Total Power Dissipation (Ptot) | 830 mW at Tamb ≤ 25 °C - supports sustained regulation in compact layouts with adequate copper area. |
| Reverse Current (IR) | ≤0.1 μA at VR = 7.6 V - guarantees negligible leakage in standby or high-impedance feedback paths. |
| Temperature Coefficient (SZ) | +0.2 mV/K at IZ = 5 mA - enables predictable, low-drift voltage reference over industrial temperature range (−65 °C to +150 °C). |
| Junction-to-Solder-Point Rth | 70 K/W - allows direct thermal coupling to PCB copper, enabling reliable power handling without heatsinking. |
Pinout & Package
SOD123F surface-mount plastic package: 2-terminal, flat lead, 3.4–3.6 mm length × 1.5–1.7 mm width × 0.9–1.0 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 for correct PCB orientation and polarity-sensitive placement. |
| 2 | Anode (A) | Connected to ground or lower-potential rail; forms reverse-biased junction enabling controlled Zener conduction. |
Key Features
| Feature | Design Value |
|---|---|
| ±1 % VZ tolerance | Enables single-diode replacement of trimmed references in cost-sensitive 10 V supply monitors and ADC references. |
| 830 mW power rating | Supports 83 mA max Zener current at 10 V, sufficient for driving optocoupler LEDs or op-amp bias networks. |
| 70 K/W Rth(j-sp) | Permits direct thermal path to PCB copper, eliminating need for thermal vias in space-constrained consumer power supplies. |
| Low 0.1 μA IR at 7.6 V | Minimizes error in high-gain feedback loops and preserves battery life in always-on sensor nodes. |
| SOD123F footprint | Compatible with standard reflow profiles and automated pick-and-place; 2.8 mm × 1.2 mm solder land matches IPC-7351B density level A. |
Applications
| Power Supply Voltage Reference | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Stabilizing 10 V rail for analog front-end circuitry in industrial data acquisition modules. IC Role / Device Role / Timing Role: Zener diode provides passive, low-noise voltage reference for op-amp biasing and DAC output buffering. Use Value: ±1 % tolerance and 70 Ω rdif ensure reference stability within ±15 mV across 1–10 mA load variation, reducing calibration overhead. |
Use Scenario: Protecting microcontroller I/O pins from transient surges on 12 V automotive accessory lines. IC Role / Device Role / Timing Role: Clamping device shunts excess energy above 10.1 V to ground during load-dump events. Use Value: 830 mW Ptot and 40 W non-repetitive peak power rating absorb 100 μs surges without degradation. |
| Low-Power Sensor Biasing | Feedback Loop Regulation |
Use Scenario: Generating stable 10 V bias for piezoresistive pressure sensor bridges in portable medical devices. IC Role / Device Role / Timing Role: Passive voltage source supplying excitation voltage with minimal quiescent current draw. Use Value: 0.1 μA reverse leakage prevents measurable error in nA-level bridge currents, preserving measurement accuracy. |
Use Scenario: Setting output voltage in adjustable buck converter feedback divider network. IC Role / Device Role / Timing Role: Replaces top resistor in resistive divider to improve regulation accuracy and reduce sensitivity to resistor tolerance. Use Value: +0.2 mV/K temperature coefficient counteracts negative TC of typical feedback resistors, improving overall thermal stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52C10 | ±5 % tolerance, 150 Ω rdif, 500 mW Ptot | Higher voltage drift under load; suitable only for non-critical biasing where cost > precision. | Select when budget constraints outweigh regulation accuracy requirements and thermal margin is ample. |
| MMSZ5240B | ±5 % tolerance, SOD-123 package (not SOD123F), 500 mW rating | Non-identical footprint; requires PCB redesign; higher thermal resistance (150 K/W j-a). | Choose only if legacy MMSZ footprint compatibility is mandatory and power dissipation remains below 300 mW. |
Compared with BZT52C10 and MMSZ5240B, BZT52H-A10X delivers tighter tolerance, lower impedance, and superior thermal performance in the same SOD123F footprint - making it optimal for new designs requiring robust 10 V regulation without layout revision or derating.
Availability
BZT52H-A10X is available at Aetrix Electronics and suitable for precision voltage reference, overvoltage clamp protection, and low-power sensor biasing requiring stable component supply and full traceability.
Supply support for BZT52H-A10X 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 logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.
The BZT52H series belongs to Nexperia's general-purpose Zener diode product line, engineered for cost-effective, high-precision voltage regulation in space-constrained SMT applications with demanding thermal and stability requirements.
FAQ
What is the maximum continuous Zener current for BZT52H-A10X at 25 °C ambient?
The maximum continuous Zener current is 83 mA, calculated from 830 mW / 10 V. This assumes mounting on an FR4 PCB with a 1 cm² cathode pad; derating is required above 25 °C ambient per the 70 K/W junction-to-solder-point thermal resistance.
Does BZT52H-A10X meet automotive qualification standards?
No. Per Nexperia's revision history (Rev. 7, Jan 2023), the BZT52H series is explicitly designated as non-automotive qualified. Automotive-grade alternatives (e.g., BZT52H-Q series) must be selected for AEC-Q200-compliant applications.
How does the +0.2 mV/K temperature coefficient affect regulation accuracy over −40 °C to +85 °C?
Over that range, the coefficient causes a +12.5 mV shift (0.2 mV/K × 62.5 K), resulting in a worst-case VZ of 10.1125 V - still within the ±1 % (±100 mV) initial tolerance band, confirming suitability for industrial-grade stability.
Can BZT52H-A10X replace BZX84-C10 in an existing SOD-323 design?
No. BZT52H-A10X uses SOD123F (3.5 mm × 1.6 mm), while BZX84-C10 uses SOD-323 (2.7 mm × 1.4 mm). The larger SOD123F footprint requires PCB pad redesign; electrical differences (±1 % vs ±5 %, 70 Ω vs 150 Ω rdif) also impact performance.
BZT52H-A10X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- BZT52H
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 10 V
- Tolerance:
- ±1%
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
BZT52H-A10X FAQ
1.How can I place an order for BZT52H-A10X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52H-A10X 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-A10X reliable?
The price and inventory of BZT52H-A10X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52H-A10X is usually 5 days.
3.What payment methods are accepted for BZT52H-A10X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52H-A10X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52H-A10X?
BZT52H-A10X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52H-A10X 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-A10X?
For technical support, including BZT52H-A10X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52H-A10X requirements.
6.How does Aetrix verify that BZT52H-A10X is sourced from the original manufacturer or authorized distributors?
All BZT52H-A10X 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-A10X meets industry standards.
7.What is the process for return or replacement of BZT52H-A10X?
All BZT52H-A10X units undergo pre-shipment inspection (PSI). If there is an issue with BZT52H-A10X, 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-A10X part is unused and in its original packaging.
Return procedure for BZT52H-A10X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52H-A10X Tags
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MM5Z5V1ST1G
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