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Nexperia USA Inc. BZT52-C11J
- Part No.:
- BZT52-C11J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52-C11J.pdf
- Description:
- DIODE ZENER 11V 350MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:691
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Product details
Overview
BZT52-C11J from Nexperia is a ±5 % tolerance Zener voltage regulator diode in SOD123 package, rated for 11 V nominal Zener voltage at 5 mA, 70 Ω maximum differential resistance, and 590 mW total power dissipation. It provides stable reference voltage in low-power biasing, overvoltage clamping, and signal-level regulation circuits.
For engineers reviewing the BZT52-C11J datasheet, BZT52-C11J pinout, BZT52-C11J application, or BZT52-C11J equivalent, key selection criteria include Zener voltage tolerance (±5 %), thermal resistance (210 K/W junction-to-solder-point), reverse current ≤0.1 μA at 8.5 V, temperature coefficient of +5.4 mV/K, and SOD123 surface-mount compatibility with standard reflow profiles.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable 11 V reference across load variations, with low dynamic impedance (≤70 Ω) ensuring minimal voltage deviation under 1–5 mA test currents. Its silicon planar construction delivers consistent performance across −55 °C to +150 °C ambient range.
The device uses a two-terminal configuration with defined cathode/anode polarity, optimized for PCB-mounted voltage referencing where precision and thermal stability are required but automotive qualification is not needed. It is not intended for high-current regulation or transient suppression beyond its 40 W non-repetitive peak rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10.4 V to 11.6 V at IZ = 5 mA - defines usable regulation window for reference design |
| Differential Resistance (rdif) | ≤70 Ω - ensures <110 mV output shift per 1.5 mA load change near nominal current |
| Reverse Current (IR) | ≤0.1 μA at VR = 8.5 V - guarantees low leakage in standby-biased protection circuits |
| Temperature Coefficient (SZ) | +5.4 mV/K at IZ = 5 mA - quantifies voltage drift over temperature in precision references |
| Total Power Dissipation (Ptot) | 590 mW at Tamb ≤ 25 °C on FR4 PCB - sets maximum continuous DC power in standard layout |
| Forward Voltage (VF) | ≤0.9 V at IF = 10 mA - enables use as low-drop rectifier or clamp in forward conduction |
| Junction Temperature (Tj) | 150 °C maximum - determines thermal derating curve for sustained operation above 25 °C ambient |
Pinout & Package
SOD123 plastic surface-mount package: 2.80 mm × 1.70 mm body, 0.70 mm lead pitch, cathode marked by band on top surface; designed for reflow soldering only with specified footprint (2.36 mm × 1.11 mm pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to regulated output node; marking band identifies this terminal for correct PCB orientation |
| 2 | Anode (A) | Connected to ground or lower-potential rail; reverse-biased during Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±5 % Zener voltage tolerance | Enables cost-effective voltage referencing without trimming in non-critical analog subsystems |
| Low differential resistance (≤70 Ω) | Maintains regulation accuracy under varying load currents typical in sensor bias networks |
| 150 °C max junction temperature | Supports reliable operation in enclosed industrial enclosures with limited airflow |
| 210 K/W junction-to-solder-point thermal resistance | Allows accurate thermal modeling when mounted on standard FR4 PCB with 1 cm² cathode pad |
| Non-automotive qualification | Meets industrial-grade reliability standards but excludes AEC-Q200 stress testing for automotive use |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
|
Use Scenario: Providing stable 11 V reference for op-amp comparators in 12 V rail monitoring circuits. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference potential relative to ground. Use Value: Delivers ±5 % voltage accuracy with <110 mV shift over 1–5 mA current variation, enabling reliable trip-point detection. |
Use Scenario: Protecting microcontroller GPIO pins from 12 V transients induced by relay coil flyback. IC Role / Device Role / Timing Role: Bidirectional clamping element limiting voltage excursion to 11.6 V maximum. Use Value: Absorbs surge energy within 590 mW steady-state limit while holding clamped voltage below IC absolute maximum rating. |
| Sensor Bias Network | Signal-Level Shifter |
|
Use Scenario: Biasing a thermistor-based voltage divider in an HVAC temperature sensing module. IC Role / Device Role / Timing Role: Stable voltage source establishing known upper rail for resistive divider output scaling. Use Value: Maintains reference stability over −40 °C to +85 °C with +5.4 mV/K coefficient, minimizing measurement offset drift. |
Use Scenario: Level-shifting a 3.3 V logic signal to interface with a 12 V analog multiplexer input. IC Role / Device Role / Timing Role: Forward-conducting diode dropping ~0.85 V, combined with Zener-clamped 11 V rail for defined swing. Use Value: Uses single device for both forward drop and reverse clamp, reducing component count in mixed-voltage signal paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZT52-B11 | ±2 % tolerance, 60 Ω rdif, same 11 V nominal, automotive-unqualified | Higher precision required in feedback loops where ±5 % error causes unacceptable gain drift | Select when tighter voltage tolerance justifies higher unit cost and no automotive qualification is needed |
| MMBZ5240BLT1G | ±5 % tolerance, 10 V nominal, SOT-23 package, 350 mW Ptot | Lower power budget and board space constraints favor smaller footprint over SOD123 | Choose for space-constrained designs accepting 1 V lower Zener voltage and reduced power handling |
Compared with BZT52-C11J, BZT52-B11 offers tighter tolerance for improved regulation accuracy at identical thermal and package characteristics, while MMBZ5240BLT1G trades voltage level and power rating for smaller size-making it suitable only where 10 V operation and 350 mW limits are acceptable.
Availability
BZT52-C11J is available at Aetrix Electronics and suitable for industrial sensor interfaces, power supply supervision, overvoltage protection circuits, and analog reference networks requiring stable component supply with traceable sourcing and long-term lifecycle support.
Supply support for BZT52-C11J 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency and miniaturization for industrial and consumer applications.
BZT52-C11J belongs to the BZT52 series of general-purpose Zener diodes designed for cost-sensitive, surface-mounted voltage regulation and clamping in non-automotive electronics.
FAQ
What is the maximum reverse voltage before breakdown for BZT52-C11J?
The guaranteed Zener voltage range is 10.4 V to 11.6 V at 5 mA test current. Below 8.5 V, reverse current remains ≤0.1 μA; breakdown is gradual and fully specified only within the 10.4–11.6 V band under defined test conditions per datasheet Table 8.
Can BZT52-C11J be used in automotive applications?
No. BZT52-C11J is explicitly designated as non-automotive qualified in the datasheet revision history. It lacks AEC-Q200 qualification and is not tested to automotive temperature cycling, humidity, or vibration requirements-use only in industrial, consumer, or commercial systems.
What is the recommended PCB footprint for SOD123 mounting?
The official reflow footprint specifies a 2.36 mm × 1.11 mm copper pad for the cathode and 0.81 mm × 0.91 mm for the anode, with 0.70 mm center-to-center spacing and 0.25 mm solder mask clearance-per Figure 12 in the datasheet.
How does thermal resistance affect derating above 25 °C ambient?
With Rth(j-a) = 350 K/W and Rth(j-sp) = 210 K/W, power must be linearly derated above 25 °C: at 75 °C ambient, maximum continuous power drops to 413 mW using junction-to-solder-point value, assuming proper pad thermal coupling.
BZT52-C11J 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):
- 11 V
- Tolerance:
- ±5.5%
- Power - Max:
- 350 mW
- Impedance (Max) (Zzt):
- 10 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 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-C11J FAQ
1.How can I place an order for BZT52-C11J through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52-C11J 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-C11J reliable?
The price and inventory of BZT52-C11J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52-C11J is usually 5 days.
3.What payment methods are accepted for BZT52-C11J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52-C11J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52-C11J?
BZT52-C11J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52-C11J 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-C11J?
For technical support, including BZT52-C11J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52-C11J requirements.
6.How does Aetrix verify that BZT52-C11J is sourced from the original manufacturer or authorized distributors?
All BZT52-C11J 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-C11J meets industry standards.
7.What is the process for return or replacement of BZT52-C11J?
All BZT52-C11J units undergo pre-shipment inspection (PSI). If there is an issue with BZT52-C11J, 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-C11J part is unused and in its original packaging.
Return procedure for BZT52-C11J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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