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Diodes Incorporated BZT52C11-13
- Part No.:
- BZT52C11-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C11-13.pdf
- Description:
- DIODE ZENER 11V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:8,436
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Product details
Overview
BZT52C11-13 from Diodes Incorporated is a surface-mount 11 V Zener diode in SOD123 package, rated for 500 mW power dissipation at TL = +75°C and 370 mW at TA = +25°C, with ±5% zener voltage tolerance (10.4–11.6 V), 20 Ω maximum zener impedance at 5 mA, and 0.1 µA maximum reverse leakage at 8.0 V. It serves as a precision voltage reference or overvoltage clamp in low-power analog signal conditioning circuits.
For engineers reviewing the BZT52C11-13 datasheet, BZT52C11-13 pinout, BZT52C11-13 application, or BZT52C11-13 equivalent, key selection criteria include zener voltage accuracy, thermal resistance (RθJA = 338 °C/W), cathode-band polarity marking, SOD123 footprint compatibility, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under controlled current conditions. Its planar die construction ensures consistent breakdown characteristics, while the SOD123 package supports automated placement and reflow soldering with UL 94V-0 flammability rating.
The device exhibits a positive temperature coefficient of +5.4 mV/°C near 11 V, enabling predictable drift compensation in temperature-sensitive references. Reverse leakage remains ≤0.1 µA at VR = 8.0 V, supporting low-quiescent-current designs in battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11.0 V nominal, 10.4–11.6 V range at 5 mA - defines stable regulation point for biasing or clamping |
| Power Dissipation (PD) | 370 mW at TA = +25°C - sets max continuous power without heatsinking on FR-4 PCB |
| Zener Impedance (ZZT) | ≤20 Ω at IZT = 5 mA - determines output voltage variation under load current changes |
| Reverse Leakage (IR) | ≤0.1 µA at VR = 8.0 V - ensures minimal standby current in high-impedance sensing nodes |
| Thermal Resistance (RθJA) | 338 °C/W - quantifies junction-to-ambient temperature rise per watt dissipated |
| Temperature Coefficient | +5.4 mV/°C - enables predictable voltage drift correction in compensated references |
Pinout & Package
Package: SOD123 - surface-mount plastic case with cathode band marking, 0.010 g weight, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side in reverse-biased operation; forms reference ground return path |
| Cathode | Zener breakdown terminal / regulated output node | Marked with band; supplies stable 11 V when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures tight VZ tolerance and repeatable breakdown behavior across production lots |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and body electronics |
| Lead-free & halogen-free | Complies with RoHS 2 and JEDEC J-STD-020; eliminates hazardous substances in final assembly |
| Automated assembly compatibility | SOD123 footprint and matte tin plating support high-yield pick-and-place and reflow processes |
Applications
| Power Supply Monitoring | ADC Reference Clamp |
|---|---|
Use Scenario: Monitoring 12 V rail in automotive infotainment head units to detect undervoltage faults. IC Role / Device Role / Timing Role: Zener diode provides precise 11 V threshold for comparator input. Use Value: Enables reliable fault detection within ±0.6 V margin due to 10.4–11.6 V VZ range and <20 Ω dynamic impedance. |
Use Scenario: Clamping input to 12-bit SAR ADC in industrial sensor interface to prevent overvoltage damage. IC Role / Device Role / Timing Role: Acts as passive overvoltage limiter on analog front-end before ADC sampling. Use Value: Limits transient excursions to ≤11.6 V with <0.1 µA leakage, preserving ADC linearity and offset stability. |
| Low-Power Sensor Biasing | Microcontroller Reset Circuit |
Use Scenario: Providing stable bias voltage for thermistor-based temperature sensing in battery-operated IoT nodes. IC Role / Device Role / Timing Role: Supplies regulated reference for Wheatstone bridge excitation. Use Value: Delivers <0.1 µA leakage and +5.4 mV/°C TC, enabling sub-0.5°C measurement accuracy over –40 to +85°C. |
Use Scenario: Generating clean reset threshold for ARM Cortex-M0 microcontrollers in smart metering designs. IC Role / Device Role / Timing Role: Sets 11 V brown-out detection level for POR/BOR circuitry. Use Value: Ensures deterministic reset assertion with 20 Ω ZZT and AEC-Q101 qualification for field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5242B-7-F | Zener voltage 11.4 V (±5%), 350 mW PD at TA = +25°C, SOT-23 package | Higher thermal resistance (RθJA = 357 °C/W) and smaller footprint limit power handling in dense layouts | Select when board space is constrained and 11.4 V nominal is acceptable; verify layout thermal relief |
| 1N4740A | 10 V nominal, 1 W PD, DO-41 through-hole package, ±5% tolerance | Larger size and leaded construction preclude use in automated SMT lines or compact PCBs | Choose only for prototyping or legacy through-hole designs requiring higher power dissipation |
Compared with MMBZ5242B-7-F and 1N4740A, BZT52C11-13 offers optimal balance of SMT compatibility, AEC-Q101 qualification, and 11 V regulation accuracy in space-constrained automotive and industrial applications.
Availability
BZT52C11-13 is available at Aetrix Electronics and suitable for automotive power monitoring, industrial sensor biasing, microcontroller reset circuits, and ADC input protection requiring stable component supply and long-term lifecycle assurance.
Supply support for BZT52C11-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and consumer markets.
The BZT52 series belongs to Diodes' general-purpose Zener diode product line, engineered for precision voltage regulation and transient suppression in cost-sensitive, high-volume SMT applications.
FAQ
What is the maximum reverse voltage (VR) at which BZT52C11-13 guarantees ≤0.1 µA leakage?
The datasheet specifies IR ≤ 0.1 µA at VR = 8.0 V. This value is measured under standard test conditions (TA = +25°C) and defines the upper limit of reverse bias where leakage remains negligible for low-power bias networks.
Can BZT52C11-13 be used in place of a 12 V Zener diode?
No - its nominal zener voltage is 11 V (10.4–11.6 V range), not 12 V. Substituting it for a 12 V part would cause ~9% regulation error. For 12 V, use BZT52C12-13 (11.4–12.7 V range) instead.
Is the SOD123 package compatible with IPC-7351B standard footprints?
Yes - Diodes' published SOD123 outline (A = 1.00–1.35 mm, E = 2.55–2.85 mm, He = 3.55–3.85 mm) aligns with IPC-7351B "SOD123" land pattern recommendations, including recommended pad dimensions X = 0.90 mm and Y = 0.95 mm.
Does BZT52C11-13 meet automotive qualification requirements?
Yes - it is qualified to AEC-Q101 standards, confirming reliability for automotive applications including engine control, body electronics, and infotainment systems under temperature cycling, humidity, and mechanical stress testing.
BZT52C11-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 8 V
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 10 mA
- Operating Temperature:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
BZT52C11-13 FAQ
1.How can I place an order for BZT52C11-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C11-13 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 BZT52C11-13 reliable?
The price and inventory of BZT52C11-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C11-13 is usually 5 days.
3.What payment methods are accepted for BZT52C11-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C11-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C11-13?
BZT52C11-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C11-13 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 BZT52C11-13?
For technical support, including BZT52C11-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C11-13 requirements.
6.How does Aetrix verify that BZT52C11-13 is sourced from the original manufacturer or authorized distributors?
All BZT52C11-13 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 BZT52C11-13 meets industry standards.
7.What is the process for return or replacement of BZT52C11-13?
All BZT52C11-13 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C11-13, 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 BZT52C11-13 part is unused and in its original packaging.
Return procedure for BZT52C11-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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