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Nexperia USA Inc. BZT52-C10J
- Part No.:
- BZT52-C10J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52-C10J.pdf
- Description:
- DIODE ZENER 10V 350MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:8,582
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Product details
Overview
BZT52-C10J from Nexperia is a ±5 % tolerance Zener diode in SOD123 package, rated for 10 V nominal Zener voltage at 5 mA, 70 Ω maximum differential resistance, and 590 mW total power dissipation at Tamb ≤ 25 °C; used for precision voltage reference and low-power regulation in sensor biasing and power supply feedback paths.
For engineers reviewing the BZT52-C10J datasheet, BZT52-C10J pinout, BZT52-C10J application, or BZT52-C10J equivalent, key selection criteria include Zener voltage tolerance (±5 %), thermal resistance (210 K/W junction-to-solder point), reverse current (≤0.2 μA at VR = 9.4 V), temperature coefficient (4.5 to 8.0 mV/K), and SOD123 footprint compatibility with automated SMT assembly.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load or input conditions. Its 10 V nominal Zener voltage is specified at IZ = 5 mA with ±5 % tolerance (C-series), and exhibits low dynamic impedance (≤70 Ω) ensuring minimal output voltage variation with current changes.
Designed for surface-mount use on FR4 PCBs with single-sided copper, it delivers thermal performance defined by Rth(j-sp) = 210 K/W and Rth(j-a) = 350 K/W, enabling reliable operation up to 150 °C junction temperature while maintaining regulation integrity in compact power management circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.4 V to 10.6 V at IZ = 5 mA - defines regulated output range for feedback or reference use |
| Differential Resistance (rdif) | ≤70 Ω - ensures <1% voltage shift per 1 mA load change in regulation loop |
| Reverse Current (IR) | ≤0.2 μA at VR = 9.4 V - guarantees low leakage in high-impedance bias networks |
| Temperature Coefficient (SZ) | 4.5 to 8.0 mV/K - quantifies voltage drift over temperature in precision references |
| Total Power Dissipation (Ptot) | 590 mW at Tamb ≤ 25 °C - sets maximum continuous DC power handling on standard FR4 pad |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - enables predictable forward conduction during transient clamping |
| Junction Temperature (Tj) | −55 °C to +150 °C - supports industrial and extended-temperature embedded applications |
Pinout & Package
The BZT52-C10J is housed in a plastic SOD123 surface-mount package (2.80 mm × 1.70 mm × 1.30 mm), with cathode marked by a visible band on the body and optimized for reflow soldering per IPC-7095 guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to regulated output node; marking band identifies this terminal for correct PCB orientation |
| 2 (A) | Anode | Connected to ground or lower-potential rail; forms reverse-biased junction for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables tighter regulation than ±10 % alternatives without requiring trimming resistors |
| Low differential resistance (≤70 Ω) | Reduces output voltage deviation under dynamic load steps in feedback loops |
| SOD123 package footprint | Supports high-density PCB layouts and compatibility with standard 0805-class pick-and-place equipment |
| 150 °C max junction temperature | Permits operation in thermally constrained enclosures without derating below 85 °C ambient |
| Non-repetitive peak reverse power (40 W) | Withstands short-duration ESD transients per IEC 61000-4-2 Level 4 without degradation |
Applications
| Power Supply Feedback Reference | Sensor Biasing Circuit |
|---|---|
Use Scenario: Stabilizing output voltage of isolated DC-DC converters via optocoupler feedback loop. IC Role / Device Role / Timing Role: Zener diode provides precise 10 V reference to TL431 shunt regulator input. Use Value: Tight ±5 % tolerance and low rdif ensure <±1.5 % output regulation accuracy across line/load/temperature. |
Use Scenario: Providing stable bias voltage to analog output sensors (e.g., pressure transducers) in automotive ECUs. IC Role / Device Role / Timing Role: Acts as passive voltage reference for ratiometric signal conditioning circuitry. Use Value: Low IR (<0.2 μA) prevents loading of high-impedance sensor bridges, preserving measurement fidelity. |
| Overvoltage Clamp Protection | Microcontroller Reset Threshold |
Use Scenario: Clamping transient surges on 12 V automotive subsystem rails before they reach downstream ICs. IC Role / Device Role / Timing Role: Reverse-connected Zener absorbs energy above 10.6 V, diverting current to ground. Use Value: 40 W non-repetitive peak power rating handles ISO 7637-2 pulse 1/2a without failure. |
Use Scenario: Setting brown-out detection threshold for ARM Cortex-M microcontrollers operating from 3.3 V LDOs. IC Role / Device Role / Timing Role: Forms voltage divider with resistor to generate reset logic level at 2.7 V. Use Value: Predictable SZ (4.5–8.0 mV/K) allows accurate thermal compensation of reset point across −40 °C to +125 °C. |
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 %, 150 mW Ptot, SOT-23 package | Lower power rating limits use to sub-10 mA regulation; smaller footprint increases thermal stress | Select when board space is critical and power demand is ≤100 mW |
| Vishay BZX84-C10 | 10 V nominal, ±5 %, 350 mW Ptot, SOT-23 package | Higher rdif (≤100 Ω) and lower surge rating (25 W) reduce regulation stability under load transients | Prefer for cost-sensitive consumer designs where thermal margin exceeds 20 K/W |
Compared with BZT52-C10J, the MMBZ5240BLT1G offers smaller size but sacrifices 41 % power handling and thermal robustness, while the BZX84-C10 trades 40 % lower surge capability and higher impedance for broader distributor availability in legacy designs.
Availability
BZT52-C10J is available at Aetrix Electronics and suitable for power supply feedback reference, sensor biasing circuit, and overvoltage clamp protection requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for BZT52-C10J 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 manufacturer specializing in high-volume, high-reliability discrete and logic devices, with core expertise in automotive-qualified and industrial-grade components.
The BZT52 series targets general-purpose voltage regulation in cost-sensitive, space-constrained applications-designed for broad compatibility across consumer, industrial, and computing power systems without automotive qualification overhead.
FAQ
What is the maximum steady-state current the BZT52-C10J can regulate continuously?
The BZT52-C10J supports continuous Zener current up to 53 mA at Tamb = 25 °C, calculated from Ptot = 590 mW and VZ ≈ 10 V. Derating is required above 25 °C ambient per the 210 K/W junction-to-solder-point thermal resistance; at 85 °C ambient, max continuous IZ drops to ~32 mA to maintain Tj ≤ 150 °C.
How does the ±5 % tolerance affect regulation accuracy in a 10 V reference design?
At 10 V nominal, ±5 % tolerance means the actual Zener voltage falls between 9.4 V and 10.6 V at IZ = 5 mA. In a feedback divider, this introduces up to ±6 % error in setpoint voltage unless trimmed; however, low rdif (≤70 Ω) ensures additional error from load current remains under ±0.7 % per 1 mA change.
Can BZT52-C10J be used in place of a 10 V Zener with ±2 % tolerance?
No-BZT52-C10J belongs to the C-series (±5 %), whereas ±2 % parts are B-series (e.g., BZT52-B10). Substituting introduces up to double the initial voltage error and may violate closed-loop stability margins in precision regulators; B-series parts also exhibit lower rdif (≤40 Ω) and different temperature coefficients.
Is the SOD123 package compatible with standard reflow profiles for lead-free assembly?
Yes-the SOD123 package is qualified for lead-free reflow per JEDEC J-STD-020, with peak temperature up to 260 °C. The recommended profile uses ramp rate ≤3 °C/s, preheat 150–200 °C for 60–120 s, soak 200–220 °C for 60–120 s, and time above liquidus (217 °C) of 60–90 s, matching standard Class 3 PCB assembly requirements.
BZT52-C10J 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-C10J FAQ
1.How can I place an order for BZT52-C10J through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52-C10J 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-C10J reliable?
The price and inventory of BZT52-C10J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52-C10J is usually 5 days.
3.What payment methods are accepted for BZT52-C10J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52-C10J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52-C10J?
BZT52-C10J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52-C10J 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-C10J?
For technical support, including BZT52-C10J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52-C10J requirements.
6.How does Aetrix verify that BZT52-C10J is sourced from the original manufacturer or authorized distributors?
All BZT52-C10J 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-C10J meets industry standards.
7.What is the process for return or replacement of BZT52-C10J?
All BZT52-C10J units undergo pre-shipment inspection (PSI). If there is an issue with BZT52-C10J, 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-C10J part is unused and in its original packaging.
Return procedure for BZT52-C10J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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