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Nexperia USA Inc. BZT52-C10X
- Part No.:
- BZT52-C10X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52-C10X.pdf
- Description:
- DIODE ZENER 10V 350MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:4,460
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Product details
Overview
BZT52-C10X from Nexperia is a Zener voltage regulator diode in SOD123 surface-mount package, rated for 10 V nominal Zener voltage at 5 mA, ±5 % tolerance, 590 mW total power dissipation, and low differential resistance (70 Ω max), used for precision voltage reference and overvoltage protection in low-power analog circuits.
For engineers reviewing the BZT52-C10X datasheet, BZT52-C10X pinout, BZT52-C10X application, or BZT52-C10X equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (210 K/W junction-to-solder-point), reverse current at 9.4 V (≤0.2 μA), temperature coefficient (±4.5 to ±8.0 mV/K), and SOD123 footprint compatibility with IPC-7351B reflow land patterns.
Technical Context
This device operates as a two-terminal shunt voltage regulator, maintaining stable output voltage across variable load currents by conducting reverse current above its specified Zener breakdown threshold. It exhibits a typical temperature coefficient of +5.4 mV/K at IZ = 5 mA and reverse current <0.2 μA at VR = 9.4 V.
Designed for surface-mounted use on FR4 PCBs with single-sided copper, it delivers 590 mW total power dissipation at Tamb ≤ 25 °C with cathode pad area of 1 cm², and supports non-repetitive peak reverse power up to 40 W for 100 μs pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.4 V to 10.6 V at IZ = 5 mA - defines regulation range for stable reference in biasing or clamping circuits |
| Tolerance | ±5 % - determines absolute accuracy of regulated voltage under nominal test conditions |
| Differential Resistance (rdif) | ≤70 Ω - indicates regulation stiffness; lower value improves load regulation performance |
| Reverse Current (IR) | ≤0.2 μA at VR = 9.4 V - ensures minimal leakage before breakdown, critical for low-power standby operation |
| Total Power Dissipation (Ptot) | 590 mW at Tamb ≤ 25 °C with 1 cm² cathode pad - sets maximum continuous DC power handling in standard PCB layout |
| Junction-to-Solder-Point Thermal Resistance (Rth(j-sp)) | 210 K/W - quantifies thermal path efficiency from die to PCB copper, guiding thermal relief design |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - relevant for polarity-check or ESD protection configurations using forward conduction |
Pinout & Package
SOD123 plastic surface-mount package: 2-terminal, flat lead, 2.80 mm × 1.70 mm body, 0.70 mm lead pitch, cathode marked by band on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking band identifies this terminal; carries reverse current during regulation |
| 2 (A) | Anode | Connected to circuit ground or lower-potential rail; completes reverse-biased path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Low differential resistance | 70 Ω max at IZ = 5 mA - reduces output voltage variation under changing load current |
| Wide Zener voltage range coverage | 10 V nominal in E24 series - enables precise matching to common supply rails (e.g., 9 V battery systems) |
| Controlled temperature coefficient | +5.4 mV/K typical at IZ = 5 mA - allows predictable drift compensation in temperature-sensitive references |
| Small-form-factor SMD packaging | SOD123 outline per IEC 60134 - supports high-density PCB layouts and automated assembly without lead forming |
| Non-repetitive surge capability | 40 W peak reverse power for 100 μs - provides transient overvoltage resilience in input protection networks |
Applications
| Power Supply Voltage Reference | Overvoltage Clamp for Microcontroller I/O |
|---|---|
|
Use Scenario: Providing stable 10 V reference for ADC biasing or op-amp feedback networks in industrial sensor signal conditioning modules. IC Role / Device Role / Timing Role: Shunt voltage reference element, absorbing excess current to maintain fixed potential at reference node. Use Value: Enables 10-bit ADC linearity within ±0.5 LSB error by holding reference voltage deviation below ±50 mV over 0–70 °C ambient range. |
Use Scenario: Protecting 3.3 V GPIO pins of an ARM Cortex-M4 microcontroller against accidental 12 V misconnection on external interface headers. IC Role / Device Role / Timing Role: Reverse-biased clamping diode, limiting pin voltage to ≤10.6 V during fault events. Use Value: Prevents gate oxide damage by limiting transient overvoltage to 3× VDD, with <0.2 μA leakage preserving sleep-mode current budget. |
| Low-Power Battery Monitor Threshold | Comparator Hysteresis Bias Network |
|
Use Scenario: Detecting end-of-discharge in 9 V alkaline battery packs used in portable test equipment. IC Role / Device Role / Timing Role: Zener-based threshold detector feeding comparator input, activated when battery drops below 9.4 V. Use Value: Delivers 20 mV hysteresis margin via resistor divider, ensuring clean state transition without oscillation during gradual voltage decay. |
Use Scenario: Setting upper/lower trip points in a window comparator for analog sensor fault detection in HVAC control boards. IC Role / Device Role / Timing Role: Precision voltage source defining hysteresis band edges in conjunction with feedback resistors. Use Value: Achieves ±0.5 % trip point accuracy across production units due to tight ±5 % VZ tolerance and low rdif. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5240BLT1G | 10 V nominal, ±5 %, 350 mW Ptot, SOT-23 package | Higher thermal resistance (350 K/W j-a), smaller footprint but lower power handling | Select when board space is constrained and average power <300 mW; verify solder joint reliability for repeated thermal cycling |
| Vishay BZX84-C10 | 10 V nominal, ±5 %, 300 mW Ptot, SOT-23 package | Lower max power and higher rdif (90 Ω), no guaranteed 590 mW rating | Acceptable for signal-level referencing only; avoid in power-rail clamp roles requiring >350 mW surge absorption |
Compared with BZT52-C10X, MMBZ5240BLT1G trades 240 mW lower continuous dissipation for 0.5 mm² smaller footprint, while BZX84-C10 sacrifices both power headroom and regulation stiffness-making BZT52-C10X optimal for cost-sensitive, thermally demanding 10 V reference designs on standard FR4.
Availability
BZT52-C10X is available at Aetrix Electronics and suitable for voltage reference, overvoltage protection, and battery monitoring applications requiring stable component supply, consistent parametric performance across production lots, and long-term obsolescence management.
Supply support for BZT52-C10X 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 and industrial-grade components.
The BZT52 series targets general-purpose voltage regulation in consumer, industrial, and computing applications, emphasizing manufacturability, thermal robustness, and parametric consistency in SMD packaging.
FAQ
What is the maximum continuous reverse current the BZT52-C10X can sustain at 25 °C ambient?
The device sustains up to 59 mA continuous reverse current at 10 V Zener voltage and 25 °C ambient, calculated from Ptot = 590 mW and VZ ≈ 10 V. This assumes full thermal pad implementation per datasheet condition: 1 cm² cathode copper area on FR4 PCB.
Does the BZT52-C10X meet automotive qualification standards?
No. Per Nexperia's revision history (Rev. 2, October 2025), the C-series BZT52 devices are explicitly designated as non-automotive qualified. Automotive applications require the -Q qualified variants (e.g., BZT52-C10-Q), which undergo AEC-Q101 stress testing and PPAP documentation.
How does the temperature coefficient affect regulation accuracy over –40 °C to +125 °C?
At IZ = 5 mA, the coefficient is +5.4 to +8.0 mV/K, causing ~0.85 V drift across 125 K span. For high-accuracy uses, pair with NTC thermistors or use in compensated networks; uncorrected, this yields ±4.25 % VZ variation over full range.
Can the BZT52-C10X be used in parallel for higher power dissipation?
No. Zener diodes exhibit negative temperature coefficients below ~5 V and positive above, but even within same batch, VZ mismatch causes current hogging. Parallel operation risks thermal runaway; use a single higher-rated device or active regulation instead.
BZT52-C10X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 10 V
- Tolerance:
- ±6%
- Power - Max:
- 350 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:
- -55°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
BZT52-C10X FAQ
1.How can I place an order for BZT52-C10X through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52-C10X 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 BZT52-C10X reliable?
The price and inventory of BZT52-C10X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52-C10X is usually 5 days.
3.What payment methods are accepted for BZT52-C10X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52-C10X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52-C10X?
BZT52-C10X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52-C10X 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 BZT52-C10X?
For technical support, including BZT52-C10X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52-C10X requirements.
6.How does Aetrix verify that BZT52-C10X is sourced from the original manufacturer or authorized distributors?
All BZT52-C10X 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 BZT52-C10X meets industry standards.
7.What is the process for return or replacement of BZT52-C10X?
All BZT52-C10X units undergo pre-shipment inspection (PSI). If there is an issue with BZT52-C10X, 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 BZT52-C10X part is unused and in its original packaging.
Return procedure for BZT52-C10X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52-C10X Tags
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