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Diodes Incorporated BZX84C2V7W-7-F
- Part No.:
- BZX84C2V7W-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
BZX84C2V7W-7-F.pdf
- Description:
- DIODE ZENER 2.7V 200MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:7,743
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Product details
Overview
BZX84C2V7W-7-F from Diodes Incorporated is a 2.7 V, 200 mW surface-mount Zener diode in SOT-323 package, rated for 5 mA test current with 2.5–2.9 V zener voltage tolerance and 100 Ω dynamic impedance at 5 mA, used for precision voltage reference and overvoltage protection in low-power analog circuits.
For engineers reviewing the BZX84C2V7W-7-F datasheet, BZX84C2V7W-7-F pinout, BZX84C2V7W-7-F application, or BZX84C2V7W-7-F equivalent, key selection criteria include zener voltage accuracy at 5 mA, thermal resistance (625 K/W), reverse leakage (20 µA @ 1.0 V), temperature coefficient (−3.5 to 0 mV/°C), and RoHS-compliant green molding compound compatibility with automated SMT assembly.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage regulation across varying load currents. Its planar die construction ensures consistent zener characteristics, while the SOT-323 package enables high-density PCB layouts with minimal thermal mass.
It exhibits a nominal zener voltage of 2.7 V with ±0.2 V tolerance at 5 mA, 100 Ω impedance at test current, and 600 Ω impedance at knee current (1 mA), supporting reliable clamping in low-current bias networks and feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.7 V nominal, 2.5–2.9 V range at IZT = 5 mA - defines regulated output voltage in shunt regulator or reference circuits |
| Power Dissipation (PD) | 200 mW - limits maximum continuous power handling on FR4 board with recommended pad layout |
| Zener Impedance (ZZT) | 100 Ω at 5 mA - determines regulation stiffness under small-signal load variations |
| Reverse Leakage (IR) | 20 µA at VR = 1.0 V - sets minimum bias current requirement for reliable turn-on |
| Thermal Resistance (RθJA) | 625 K/W - indicates junction-to-ambient temperature rise per watt dissipated on standard FR4 |
| Temp Coefficient (αVZ) | −3.5 to 0 mV/°C - quantifies voltage drift over −65°C to +125°C operating range |
Pinout & Package
Package: SOT-323 - ultra-small surface-mount plastic case (2.0 × 1.25 × 0.9 mm), lead-free matte tin plating, moisture sensitivity level 1, UL 94V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal | Connected to lower potential side in reverse-biased Zener configuration; polarity marked on top surface |
| Cathode (Pin 2) | Zener breakdown terminal | Connected to higher potential side; carries regulated voltage during reverse operation |
| Case / Heat Sink (Pin 3) | Non-connected internal leadframe stub | No electrical connection; serves mechanical anchoring only - not a functional terminal |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures tight zener voltage distribution and repeatable breakdown characteristics across production lots |
| 200 mW power rating | Supports stable regulation in space-constrained, low-power analog signal chains without forced cooling |
| SOT-323 ultra-small package | Enables ≥0.65 mm pitch routing and <0.006 g board weight - critical for portable and wearable electronics |
| RoHS-compliant & "Green" molding | Halogen-free compound meets IPC-J-STD-020D Level 1 moisture sensitivity and global environmental compliance mandates |
Applications
| Portable Power Management | Automotive Sensor Biasing |
|---|---|
Use Scenario: Providing stable 2.7 V reference for ADC input scaling in battery-powered IoT sensor nodes. IC Role / Device Role / Timing Role: Shunt voltage reference in high-impedance divider network feeding SAR ADC reference pin. Use Value: Maintains ±1.5% voltage accuracy over temperature (−40°C to +85°C) with <20 µA quiescent current draw. | Use Scenario: Clamping ECU analog sensor supply rail against transients in 12 V automotive subsystems. IC Role / Device Role / Timing Role: Overvoltage protector for Hall-effect position sensor VCC line. Use Value: Limits rail excursion to ≤2.9 V during load-dump events, preventing sensor latch-up. |
| Industrial Signal Conditioning | Consumer Audio DC Bias |
Use Scenario: Generating precise bias point for op-amp input stage in 4–20 mA transmitter loop circuitry. IC Role / Device Role / Timing Role: Low-drift voltage reference for current-loop zero-point calibration. Use Value: Delivers <±0.2 V variation over full industrial temperature range due to −3.5 mV/°C tempco. | Use Scenario: Setting DC operating point for Class-AB headphone amplifier input coupling capacitor. IC Role / Device Role / Timing Role: Fixed-voltage bias source for AC-coupled audio signal path. Use Value: Enables rail-to-rail signal swing with <100 Ω output impedance, minimizing distortion at 20 Hz–20 kHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5223BS-7-F | Zener voltage 2.7 V, but 350 mW rating and SOT-23 package; 150 Ω ZZT at 20 mA | Higher power handling suits higher-current bias networks; larger footprint may limit layout density | Select when >200 mW dissipation or legacy SOT-23 footprint compatibility is required |
| 1SMA5912BT3G | 2.7 V zener, 1.5 W rating, DO-214AC package; 10 Ω ZZT at 41 mA | Designed for surge suppression, not precision reference; significantly lower impedance but larger size | Choose only for transient clamping where low dynamic impedance outweighs size and accuracy trade-offs |
Compared with MMBZ5223BS-7-F and 1SMA5912BT3G, BZX84C2V7W-7-F offers optimal balance of tight voltage tolerance (±0.2 V), ultra-compact SOT-323 footprint, and predictable 100 Ω impedance - making it preferred for space-constrained, low-power reference designs where thermal budget and board area are critical.
Availability
BZX84C2V7W-7-F is available at Aetrix Electronics and suitable for portable power management, automotive sensor biasing, and industrial signal conditioning requiring stable component supply and full traceability.
Supply support for BZX84C2V7W-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, headquartered in Plano, Texas, serving industrial, computing, consumer, and communications markets with high-reliability components.
The BZX84 series belongs to Diodes' precision Zener diode product line, engineered specifically for low-power voltage regulation and reference applications in compact, thermally constrained environments.
FAQ
What is the maximum reverse voltage this Zener can clamp before breakdown?
The BZX84C2V7W-7-F begins controlled reverse breakdown at its nominal zener voltage of 2.7 V, with guaranteed operation between 2.5 V and 2.9 V at 5 mA test current. It does not specify a distinct "clamping threshold" separate from its zener voltage range - regulation occurs continuously within this band under defined current conditions.
Can this device be used in series for higher voltage references?
Yes, multiple BZX84C2V7W-7-F diodes can be connected in series to achieve higher reference voltages (e.g., two in series yield ~5.4 V), but total tolerance accumulates (±0.4 V), and thermal tracking between devices is uncontrolled - precision applications require matched monolithic references instead.
Is the SOT-323 package compatible with standard reflow profiles?
Yes - the SOT-323 package is rated for moisture sensitivity level 1 per J-STD-020D and supports standard lead-free reflow profiles (peak 260°C), provided the board layout follows Diodes' recommended pad dimensions (0.7 × 0.9 mm lands with 1.9 mm center-to-center spacing).
Does the −3.5 mV/°C temperature coefficient apply across the full operating range?
Yes - the temperature coefficient of −3.5 to 0 mV/°C is specified over the full operating junction temperature range of −65°C to +125°C, measured at IZT = 5 mA; actual drift remains linear within this band and is confirmed by typical characterization curves in DS30066 Rev. 15-2.
BZX84C2V7W-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):
- 2.7 V
- Tolerance:
- ±7%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 20 µA @ 1 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
BZX84C2V7W-7-F FAQ
1.How can I place an order for BZX84C2V7W-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C2V7W-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 BZX84C2V7W-7-F reliable?
The price and inventory of BZX84C2V7W-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 BZX84C2V7W-7-F is usually 5 days.
3.What payment methods are accepted for BZX84C2V7W-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C2V7W-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C2V7W-7-F?
BZX84C2V7W-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C2V7W-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 BZX84C2V7W-7-F?
For technical support, including BZX84C2V7W-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C2V7W-7-F requirements.
6.How does Aetrix verify that BZX84C2V7W-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84C2V7W-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 BZX84C2V7W-7-F meets industry standards.
7.What is the process for return or replacement of BZX84C2V7W-7-F?
All BZX84C2V7W-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C2V7W-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 BZX84C2V7W-7-F part is unused and in its original packaging.
Return procedure for BZX84C2V7W-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C2V7W-7-F Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
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MMSZ5245BS-7-F
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
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