My Inquiry
My Account
Diodes Incorporated BZX84C11W-7-F
- Part No.:
- BZX84C11W-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84C11W-7-F.pdf
- Description:
- DIODE ZENER 11V 200MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:355
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZX84C11W-7-F from Diodes Incorporated is a 11 V, 200 mW surface-mount Zener diode in SOT-323 package, rated for 5 mA test current with 10.4–11.6 V zener voltage tolerance, 20 Ω maximum zener impedance at IZT, and 0.1 µA maximum reverse leakage at 8.0 V, used for precision voltage regulation and reference in low-power analog circuits.
For engineers reviewing the BZX84C11W-7-F datasheet, BZX84C11W-7-F pinout, BZX84C11W-7-F application, or BZX84C11W-7-F equivalent, key selection criteria include zener voltage accuracy at 5 mA, thermal resistance (625 K/W), ultra-small SOT-323 footprint, RoHS-compliant lead-free plating, and temperature coefficient (5.4 to 9.0 mV/°C) for stable biasing in portable and space-constrained designs.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its terminals under varying load and supply conditions. It features planar die construction for consistent parametric performance and is characterized at 25°C with specified min/max zener voltage, dynamic impedance, and temperature coefficient.
Its thermal design relies on FR4 PCB mounting with recommended pad layout to achieve 625 K/W junction-to-ambient thermal resistance. The device exhibits a negative-to-positive temperature coefficient range (5.4–9.0 mV/°C), enabling predictable drift compensation in voltage-reference networks.
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 bias/reference circuits |
| Power Dissipation (PD) | 200 mW - limits continuous power handling on standard FR4 board with recommended pads |
| Zener Impedance (ZZT) | 20 Ω max at 5 mA - ensures low AC impedance for ripple rejection in regulated supplies |
| Reverse Leakage (IR) | 0.1 µA max at 8.0 V - guarantees minimal quiescent current in high-impedance sensing nodes |
| Temp Coefficient (αVZ) | +5.4 to +9.0 mV/°C - enables predictable positive drift for temperature-compensated references |
| Package | SOT-323 - 2.2 mm × 1.35 mm footprint ideal for dense PCB layouts and automated assembly |
| RoHS Compliance | Lead-free, "Green" molding compound (halogen-free) - meets environmental compliance for global shipments |
Pinout & Package
Package: SOT-323 - ultra-small plastic surface-mount case with three terminals (anode, cathode, and exposed heat sink pad not electrically connected). Dimensions: 2.20 mm × 1.35 mm × 0.90 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal | Connected to lower potential side in reverse-biased Zener operation; required for proper polarity orientation on PCB |
| Cathode (Pin 2) | Zener breakdown terminal | Connected to higher potential side; carries regulated voltage output when reverse biased above VZ |
| Case / Heat Sink (Pin 3) | Mechanical ground reference | Non-electrical thermal path only; no internal connection - must be isolated from signal traces |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures tight parameter distribution and long-term stability of zener voltage over life |
| 200 mW dissipation rating | Supports use in low-power regulators without external heatsinking on standard FR4 |
| SOT-323 ultra-small package | Enables placement in space-constrained applications such as wearables and IoT sensor nodes |
| Lead-free & halogen-free ("Green") | Meets IPC/JEDEC J-STD-020D Level 1 moisture sensitivity and global environmental directives |
| 625 K/W thermal resistance | Allows predictable junction temperature rise under 200 mW load with defined PCB copper area |
Applications
| Portable Battery Monitoring | Low-Power Sensor Biasing |
|---|---|
Use Scenario: Monitoring Li-ion cell voltage in compact battery packs using resistive divider and ADC input. IC Role / Device Role / Timing Role: Provides stable 11 V reference for scaling down battery voltage before ADC sampling. Use Value: Tight 10.4–11.6 V tolerance and low 0.1 µA leakage minimize measurement error and self-discharge impact. | Use Scenario: Supplying precise bias current to MEMS pressure sensor front-end amplifiers. IC Role / Device Role / Timing Role: Acts as low-drift voltage reference for current-source generation in analog signal conditioning. Use Value: +5.4 to +9.0 mV/°C tempco allows predictable offset correction in temperature-compensated sensor calibrations. |
| USB-C Power Negotiation Reference | Industrial PLC Input Protection |
Use Scenario: Setting threshold voltage for USB PD CC line detection circuitry in portable chargers. IC Role / Device Role / Timing Role: Clamps and regulates CC line voltage to ensure reliable communication handshake with source. Use Value: 20 Ω zener impedance ensures fast response to transient CC line spikes while maintaining 11 V logic threshold. | Use Scenario: Protecting 24 V DC input channels in programmable logic controllers against overvoltage transients. IC Role / Device Role / Timing Role: Functions as shunt regulator to clamp surge energy before it reaches downstream protection ICs. Use Value: 200 mW rating and SOT-323 thermal profile support repeated transient absorption without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5240BS-7-F | 10 V nominal, 100 mW rating, SOT-323, ±5% tolerance | Lower power and voltage - suitable for 10 V reference but not direct 11 V replacement | Select when 10 V regulation suffices and lower cost is prioritized over tighter VZ tolerance |
| BZX84-C11-E3-08 | 11 V nominal, 350 mW rating, SOT-23, ±5% tolerance | Higher power, larger SOT-23 footprint - better thermal margin but occupies more board area | Choose for higher reliability in thermally demanding environments where SOT-23 is acceptable |
Compared with MMBZ5240BS-7-F and BZX84-C11-E3-08, BZX84C11W-7-F uniquely balances 11 V precision, 200 mW capability, and ultra-compact SOT-323 size-making it optimal for space-limited, battery-powered systems requiring exact 11 V regulation.
Availability
BZX84C11W-7-F is available at Aetrix Electronics and suitable for portable battery monitoring, low-power sensor biasing, USB-C power negotiation reference, and industrial PLC input protection requiring stable component supply and full RoHS compliance.
Supply support for BZX84C11W-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 consumer, computing, industrial, and automotive markets.
The BZX84 series belongs to Diodes' general-purpose Zener diode product line, designed specifically for precision voltage reference and regulation in space-constrained, low-power electronic systems.
FAQ
What is the maximum reverse voltage this Zener can regulate without breakdown?
The BZX84C11W-7-F is rated for nominal 11 V zener voltage at 5 mA test current, with guaranteed breakdown between 10.4 V and 11.6 V. It begins regulating in reverse breakdown above ~10.4 V and maintains stable voltage up to its 200 mW power limit. Operation below 10.4 V remains in high-impedance reverse leakage region.
Can this part replace a through-hole 1N4740A in an existing design?
No - the BZX84C11W-7-F is a surface-mount SOT-323 device with different thermal characteristics, package dimensions, and soldering requirements than the axial-lead 1N4740A (12 V, 1 W). While both regulate near 11–12 V, the power rating, thermal resistance (625 K/W vs. ~125 K/W), and mounting method differ significantly and require PCB redesign.
Is the temperature coefficient linear across the operating range?
The published temperature coefficient (+5.4 to +9.0 mV/°C) is measured at IZT = 5 mA and represents average drift per degree Celsius near 25°C. Nonlinearity occurs outside 0–70°C ambient; actual drift follows a parabolic curve, so high-accuracy applications require calibration or complementary compensation networks.
Does this Zener diode have built-in ESD protection?
No - the BZX84C11W-7-F is not rated or characterized for ESD immunity. Its primary function is voltage regulation, not transient suppression. For ESD-sensitive applications, external TVS diodes or RC filtering must be added upstream, as specified in Diodes Inc.'s application note AP02001 for recommended PCB layout practices.
BZX84C11W-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 11 V
- Tolerance:
- ±5%
- Power - Max:
- 200 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 ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BZX84C11W-7-F FAQ
1.How can I place an order for BZX84C11W-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C11W-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 BZX84C11W-7-F reliable?
The price and inventory of BZX84C11W-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 BZX84C11W-7-F is usually 5 days.
3.What payment methods are accepted for BZX84C11W-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C11W-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C11W-7-F?
BZX84C11W-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C11W-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 BZX84C11W-7-F?
For technical support, including BZX84C11W-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C11W-7-F requirements.
6.How does Aetrix verify that BZX84C11W-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84C11W-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 BZX84C11W-7-F meets industry standards.
7.What is the process for return or replacement of BZX84C11W-7-F?
All BZX84C11W-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C11W-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 BZX84C11W-7-F part is unused and in its original packaging.
Return procedure for BZX84C11W-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C11W-7-F Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
