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Diodes Incorporated BZX84C11T-7-F
- Part No.:
- BZX84C11T-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOT-523
- Datasheet:
-
BZX84C11T-7-F.pdf
- Description:
- DIODE ZENER 11V 150MW SOT523
- Quantity:
- Payment:
- Shipping:
Inventory:3,969
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Product details
Overview
BZX84C11T-7-F from Diodes Incorporated is a 150 mW, 11 V ±5.5% Zener diode in SOT-523 package, designed for precision voltage regulation and reference in low-power analog circuits, with 20 Ω maximum Zener impedance at 5 mA test current and 0.1 µA maximum reverse leakage at 8.0 V.
For engineers reviewing the BZX84C11T-7-F datasheet, BZX84C11T-7-F pinout, BZX84C11T-7-F application, or BZX84C11T-7-F equivalent, key selection criteria include nominal Zener voltage tolerance (±5.5%), thermal resistance (833 °C/W), low-leakage operation below 0.1 µA, and compatibility with automated SMT assembly on FR-4 PCBs using standard reflow profiles.
Technical Context
This device uses planar die construction to ensure stable Zener breakdown characteristics across temperature and lifetime. It operates within -65°C to +150°C junction temperature range and delivers regulated voltage with a temperature coefficient of +5.4 to +9.0 mV/°C at 5 mA.
The SOT-523 package enables ultra-compact placement in space-constrained designs while maintaining 150 mW power dissipation capability under defined pad layout conditions. Reverse leakage remains ≤0.1 µA up to 8.0 V, supporting high-impedance biasing and sensing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11.0 V nominal, 10.4–11.6 V range at IZT = 5 mA - defines stable regulation point for reference circuits |
| Zener Impedance (ZZT) | 20 Ω max at IZT = 5 mA - ensures minimal output voltage variation under load transients |
| Reverse Leakage (IR) | 0.1 µA max at VR = 8.0 V - enables use in high-impedance bias networks without signal degradation |
| Power Dissipation (PD) | 150 mW at TA = 25°C - sets maximum continuous DC power handling on standard FR-4 layout |
| Thermal Resistance (RθJA) | 833 °C/W - determines junction-to-ambient temperature rise per milliwatt dissipated |
| Temp. Coefficient (αVZ) | +5.4 to +9.0 mV/°C at IZT = 5 mA - quantifies voltage drift with ambient temperature change |
Pinout & Package
Package: SOT-523 - ultra-small surface-mount plastic case (1.60 mm × 0.80 mm × 0.50 mm), UL 94V-0 rated, moisture sensitivity level 1, lead-free matte tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink terminal in reverse-bias mode | Connected to lower-potential node; enables Zener conduction when cathode voltage exceeds anode by ≥11 V |
| Cathode | Current source terminal in reverse-bias mode | Connected to higher-potential node; establishes regulated reference voltage relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SOT-523 footprint | Enables placement in <1.0 mm² board area - critical for wearables and miniaturized sensor nodes |
| Planar die construction | Delivers repeatable Zener voltage distribution and long-term stability under thermal cycling |
| Lead-free / RoHS-compliant | Meets global environmental compliance requirements without compromising solderability or reliability |
| Low reverse leakage (≤0.1 µA) | Supports high-impedance voltage divider and precision biasing without loading error |
Applications
| Portable Power Monitoring | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Monitoring battery voltage in Bluetooth LE beacons with microamp-level quiescent current budget. IC Role / Device Role / Timing Role: Zener reference for ADC input scaling and low-voltage detection threshold. Use Value: Stable 11 V reference enables accurate state-of-charge estimation despite wide temperature swings (-20°C to +70°C). | Use Scenario: Providing bias voltage to op-amp input stages in 4–20 mA loop-powered pressure transmitters. IC Role / Device Role / Timing Role: Precision shunt regulator establishing fixed reference for current-sense amplifier offset calibration. Use Value: ≤0.1 µA leakage prevents error injection into µA-level loop current, preserving 0.1% full-scale accuracy. |
| USB-C PD Auxiliary Regulation | Automotive Cabin Control Panel |
Use Scenario: Generating local 11 V rail for USB-C PD controller auxiliary logic in multi-rail power systems. IC Role / Device Role / Timing Role: Low-power shunt regulator stabilizing auxiliary supply derived from main buck converter output. Use Value: 20 Ω Zener impedance minimizes ripple coupling into PD protocol timing circuitry, reducing communication errors. | Use Scenario: Supplying reference voltage to touch controller IC in automotive HVAC interface panels exposed to under-hood thermal cycling. IC Role / Device Role / Timing Role: Temperature-stable voltage reference for capacitive touch sensing baseline calibration. Use Value: +5.4 to +9.0 mV/°C tempco allows predictable compensation algorithm design across -40°C to +105°C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5242BT-7-F | 12 V nominal, ±5% tolerance, 200 mW rating, SOT-23 package | Larger footprint and higher power - suitable where board space permits and higher dissipation needed | Select when >150 mW margin required or existing SOT-23 layout reuse is prioritized |
| BZX84C10LT-7-F | 10 V nominal, ±6% tolerance, identical SOT-523 package and 150 mW rating | Lower regulation voltage - appropriate for 10 V reference systems with relaxed accuracy needs | Select when system requires 10 V reference and tighter thermal coefficient is not critical |
Compared with MMBZ5242BT-7-F and BZX84C10LT-7-F, BZX84C11T-7-F offers optimal trade-off between compact SOT-523 size, 11 V regulation target, and low-leakage performance for space- and power-constrained analog subsystems.
Availability
BZX84C11T-7-F is available at Aetrix Electronics and suitable for portable power monitoring, industrial sensor signal conditioning, USB-C PD auxiliary regulation, and automotive cabin control panel designs requiring stable component supply and consistent Zener voltage performance.
Supply support for BZX84C11T-7-F 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, industry-standard components for power management, signal integrity, and protection.
The BZX84 series belongs to Diodes' precision Zener diode product line, engineered for stable voltage reference and regulation in consumer, industrial, and automotive electronics where small size and low leakage are essential.
FAQ
What is the maximum reverse voltage this Zener can sustain before breakdown?
The BZX84C11T-7-F has a nominal Zener voltage of 11.0 V with a guaranteed range of 10.4 V to 11.6 V at 5 mA test current. Breakdown occurs within this specified range under controlled conditions; operation above 11.6 V is not characterized and may cause irreversible damage if power limits are exceeded.
Is this part suitable for use in high-temperature automotive environments?
Yes - it is rated for junction temperatures from -65°C to +150°C and qualified per J-STD-020D moisture sensitivity level 1. Its +5.4 to +9.0 mV/°C temperature coefficient is documented and usable in cabin-control applications up to +105°C ambient, provided derating per Fig. 1 is applied.
Does the SOT-523 package support automated pick-and-place assembly?
Yes - the SOT-523 package is compatible with standard high-speed pick-and-place equipment. Its 0.50 mm height, 0.80 mm width, and defined pad layout (per Diodes AP02007) ensure reliable placement and solder joint formation using IPC-7351-compliant footprints.
How does its Zener impedance affect regulation accuracy under varying load?
With a maximum Zener impedance of 20 Ω at 5 mA, a 1 mA load change causes ≤20 mV output shift. This enables stable reference generation in low-current applications like sensor biasing, but external buffering is recommended for loads exceeding 500 µA to maintain regulation fidelity.
BZX84C11T-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±5%
- Power - Max:
- 150 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:
- SOT-523
BZX84C11T-7-F FAQ
1.How can I place an order for BZX84C11T-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C11T-7-F 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 BZX84C11T-7-F reliable?
The price and inventory of BZX84C11T-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C11T-7-F is usually 5 days.
3.What payment methods are accepted for BZX84C11T-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C11T-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C11T-7-F?
BZX84C11T-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C11T-7-F 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 BZX84C11T-7-F?
For technical support, including BZX84C11T-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C11T-7-F requirements.
6.How does Aetrix verify that BZX84C11T-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84C11T-7-F 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 BZX84C11T-7-F meets industry standards.
7.What is the process for return or replacement of BZX84C11T-7-F?
All BZX84C11T-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C11T-7-F, 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 BZX84C11T-7-F part is unused and in its original packaging.
Return procedure for BZX84C11T-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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