Diodes Incorporated BZX84C3V0S-7-F
- Part No.:
- BZX84C3V0S-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BZX84C3V0S-7-F.pdf
- Description:
- DIODE ZENER ARRAY 3V SOT363
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
BZX84C3V0S-7-F from Diodes Incorporated is a 3.0 V, 200 mW surface-mount Zener diode in SOT-363 package, rated for 5 mA test current with ±0.2 V tolerance (2.8–3.2 V), 95 Ω dynamic impedance at 5 mA, and 10 µA maximum reverse leakage at 1.0 V, used for voltage regulation and reference in low-power analog circuits.
For engineers reviewing the BZX84C3V0S-7-F datasheet, BZX84C3V0S-7-F pinout, BZX84C3V0S-7-F application, or BZX84C3V0S-7-F equivalent, key selection criteria include nominal Zener voltage accuracy, thermal resistance (625 °C/W), reverse leakage at VR = 1.0 V, power derating above 25 °C, and SOT-363 footprint compatibility with high-density PCB layouts.
Technical Context
This dual-anode, single-cathode Zener diode uses planar die construction to ensure stable breakdown characteristics across temperature. It operates within -65 °C to +150 °C and maintains specified Zener voltage with ±0.2 V tolerance at IZT = 5 mA under standard ambient conditions.
The device exhibits 95 Ω Zener impedance at 5 mA and 600 Ω at knee current (1.0 mA), enabling precise low-current voltage referencing. Its ultra-small SOT-363 package supports dual-diode integration in space-constrained designs without requiring external biasing networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nom/Min/Max) | 3.0 V / 2.8 V / 3.2 V - defines tight regulation window for 3.3 V rail monitoring or LDO feedback |
| Test Current (IZT) | 5.0 mA - standard operating point for guaranteed voltage and impedance specs |
| Zener Impedance (ZZT) | 95 Ω @ 5 mA - ensures minimal output voltage shift under small load variations |
| Reverse Leakage (IR) | 10 µA @ VR = 1.0 V - enables low-quiescent-current biasing in sensor front-ends |
| Power Dissipation | 200 mW - supports continuous operation on FR4 PCB with recommended pad layout |
| Thermal Resistance (RθJA) | 625 °C/W - dictates maximum junction temperature rise under full load at ambient |
| Operating Temperature | -65 °C to +150 °C - qualified for industrial and automotive under-hood environments |
Pinout & Package
Package: SOT-363 (dual-Zener, 6-pin, ultra-small surface-mount). Molded plastic case, UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No Connect | Unused terminal; must remain unconnected per mechanical design |
| 2 (C1) | Cathode 1 | Anode of first Zener element; connects to regulated node |
| 3 (A1) | Anode 1 | Reference ground or bias return path for first Zener |
| 4 (A2) | Anode 2 | Shared anode node; common connection for dual-Zener configuration |
| 5 (C2) | Cathode 2 | Anode of second Zener element; enables dual-voltage reference use |
| 6 (NC) | No Connect | Unused terminal; no internal connection; leave floating |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures repeatable Zener breakdown voltage and long-term stability over temperature cycling |
| Lead-free/RoHS-compliant plating | Matte tin finish over Alloy 42 leadframe meets global environmental compliance requirements |
| Ultra-small SOT-363 footprint | Reduces board area by >50% vs. SOT-23 while supporting dual-diode functionality |
| Green molding compound | Halogen-free encapsulation material compliant with Diodes Inc.'s "Green" policy since 2007 |
Applications
| Power Supply Monitoring | Sensor Signal Conditioning |
|---|---|
Use Scenario: Detecting undervoltage condition on a 3.3 V microcontroller supply rail. IC Role / Device Role / Timing Role: Zener acts as precision threshold detector in comparator input stage. Use Value: 2.8–3.2 V regulation window enables reliable trip point at 90% of nominal rail, minimizing false triggers. | Use Scenario: Providing stable 3.0 V reference for bridge-based pressure sensor excitation. IC Role / Device Role / Timing Role: Low-leakage Zener supplies bias current to sensor Wheatstone bridge. Use Value: 10 µA IR at 1.0 V ensures <1 µA error contribution to bridge current, preserving measurement accuracy. |
| Low-Power Voltage Reference | ESD-Protected Interface Clamping |
Use Scenario: Generating fixed 3.0 V reference for ADC conversion in battery-powered IoT node. IC Role / Device Role / Timing Role: Zener serves as shunt reference in series with current-limiting resistor. Use Value: 95 Ω ZZT minimizes output drift under varying load currents up to 1 mA, maintaining <0.5% reference error. | Use Scenario: Bidirectional clamping of RS-485 bus lines against ESD transients. IC Role / Device Role / Timing Role: Dual-Zener configuration provides symmetrical ±3.0 V clamping to signal lines. Use Value: Shared anode (Pin 4) simplifies PCB routing and reduces component count versus discrete dual-diode solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5223BS-7-F | 3.0 V nominal, 225 mW, SOT-323 package, 100 Ω ZZT @ 20 mA | Higher power rating but single-diode; requires separate placement for dual-reference use | Select when higher power margin is needed and board space allows larger pitch |
| BZX84-C3V0LT1G | 3.0 V nominal, 300 mW, SOT-23 package, 90 Ω ZZT @ 5 mA | Single Zener, different footprint; lacks dual-anode/cathode topology of SOT-363 | Choose for cost-sensitive single-reference designs where dual functionality is unnecessary |
Compared with MMBZ5223BS-7-F and BZX84-C3V0LT1G, BZX84C3V0S-7-F uniquely delivers dual-Zener functionality in SOT-363, enabling compact bidirectional clamping or matched reference pairs without interconnect parasitics.
Availability
BZX84C3V0S-7-F is available at Aetrix Electronics and suitable for power supply monitoring, sensor signal conditioning, low-power voltage reference, and ESD-protected interface clamping requiring stable component supply and RoHS-compliant sourcing.
Supply support for BZX84C3V0S-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, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The BZX84 series belongs to Diodes' precision Zener diode product line, engineered for stable voltage regulation and referencing in space-constrained, low-power industrial and consumer electronics.
FAQ
What is the maximum reverse voltage (VR) at which leakage current is specified?
The BZX84C3V0S-7-F specifies 10 µA maximum reverse leakage current at VR = 1.0 V, per Electrical Characteristics table on page 2 of DS30108 Rev. 17–2. This value is measured at TA = 25 °C and defines the upper bound of off-state conduction before breakdown onset.
Can this device be used in a dual-Zener clamp configuration?
Yes - the SOT-363 package contains two independent Zener diodes sharing a common anode (Pin 4), allowing direct implementation of symmetrical ±3.0 V clamping on differential signal lines without external wiring or matching components.
Is the SOT-363 package compatible with standard reflow profiles?
Yes - the device is rated for moisture sensitivity level 1 per J-STD-020D and supports standard Pb-free reflow profiles. Its matte tin plating and UL 94V-0 mold compound ensure robust solderability and thermal reliability during assembly.
How does temperature affect the Zener voltage?
The temperature coefficient is -3.5 to 0 mV/°C at IZT = 5 mA, indicating slight negative drift with rising temperature. At 3.0 V nominal, this corresponds to ~−10.5 mV/°C worst-case, requiring compensation only in high-precision reference applications above 85 °C ambient.
BZX84C3V0S-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Configuration:
- 2 Independent
- Voltage - Zener (Nom) (Vz):
- 3 V
- Tolerance:
- ±6%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 95 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 1 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-363
BZX84C3V0S-7-F FAQ
1.How can I place an order for BZX84C3V0S-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C3V0S-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 BZX84C3V0S-7-F reliable?
The price and inventory of BZX84C3V0S-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 BZX84C3V0S-7-F is usually 5 days.
3.What payment methods are accepted for BZX84C3V0S-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C3V0S-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C3V0S-7-F?
BZX84C3V0S-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C3V0S-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 BZX84C3V0S-7-F?
For technical support, including BZX84C3V0S-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C3V0S-7-F requirements.
6.How does Aetrix verify that BZX84C3V0S-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84C3V0S-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 BZX84C3V0S-7-F meets industry standards.
7.What is the process for return or replacement of BZX84C3V0S-7-F?
All BZX84C3V0S-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C3V0S-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 BZX84C3V0S-7-F part is unused and in its original packaging.
Return procedure for BZX84C3V0S-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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