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Diodes Incorporated BZX84C8V2S-7
- Part No.:
- BZX84C8V2S-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- -
- Datasheet:
-
BZX84C8V2S-7.pdf
- Description:
- DIODE ZENER ARRAY 8.2V SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:17,978
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Product details
Overview
BZX84C8V2S-7 from Diodes Incorporated is a dual 200mW surface-mount Zener diode in SOT-363 package, rated for nominal 8.2V zener voltage (7.7–8.7V range at 5mA), 15Ω dynamic impedance at test current, and 0.7µA maximum reverse leakage at 5.0V. It serves as a precision voltage reference or overvoltage clamp in low-power analog signal conditioning circuits.
For engineers reviewing the BZX84C8V2S-7 datasheet, BZX84C8V2S-7 pinout, BZX84C8V2S-7 application, or BZX84C8V2S-7 equivalent, key selection criteria include zener voltage tolerance, thermal resistance (625°C/W), reverse leakage at VR, temperature coefficient (+3.2 to +6.2 mV/°C), and SOT-363 footprint compatibility with high-density PCB layouts.
Technical Context
This dual-element Zener diode integrates two independent 8.2V zener junctions in a single SOT-363 package, sharing no internal connection-each anode/cathode pair operates independently. Its planar die construction ensures stable breakdown characteristics across -65°C to +150°C operating range and supports pulse operation per JEDEC JESD22-A114.
The device exhibits a positive temperature coefficient (+3.2 to +6.2 mV/°C) above 6V, enabling predictable drift compensation in reference designs. Thermal resistance of 625°C/W (on FR4 board) limits continuous power dissipation to 200mW at 25°C ambient, derating linearly above 25°C per Figure 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.2 V nominal, 7.7–8.7 V min/max at IZT = 5 mA - defines stable regulation window under typical bias |
| Zener Impedance (ZZT) | 15 Ω at IZT = 5 mA - determines output voltage stability under load transients |
| Reverse Leakage (IR) | 0.7 µA max at VR = 5.0 V - critical for low-current bias networks and battery-powered references |
| Power Dissipation (PD) | 200 mW at TA = 25°C - sets maximum continuous DC or pulsed power handling on standard FR4 |
| Temp Coefficient (αVZ) | +3.2 to +6.2 mV/°C at IZT = 5 mA - enables predictable drift modeling in temperature-varying environments |
| Thermal Resistance (RθJA) | 625 °C/W - dictates required board copper area and airflow for thermal management |
| Package | SOT-363 - 6-pin ultra-small outline with dual isolated Zener elements, compatible with 0.65 mm pitch reflow |
Pinout & Package
SOT-363 package with six terminals: two isolated Zener diodes, each occupying three pins (anode–cathode–no-connect). Pin 1 (NC), Pin 2 (Cathode 1), Pin 3 (Anode 1), Pin 4 (Anode 2), Pin 5 (Cathode 2), Pin 6 (NC). Polarity confirmed per Diodes Inc. top-view schematic.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | No Connect | Electrically isolated; must remain unconnected to avoid parasitic coupling |
| Pin 2 | Cathode of Zener 1 | Connected to regulated node; reverse-biased during normal operation |
| Pin 3 | Anode of Zener 1 | Reference ground or common return path for first Zener element |
| Pin 4 | Anode of Zener 2 | Independent return path; enables dual-rail or differential reference use |
| Pin 5 | Cathode of Zener 2 | Second regulated output node; electrically isolated from Pin 2 |
| Pin 6 | No Connect | Electrically isolated; no internal connection; must float |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent Zener elements | Two isolated 8.2V regulation paths in one SOT-363 footprint - saves board space vs. discrete dual placement |
| Planar die construction | Ensures tight VZ tolerance and repeatable ZZT across production lots - critical for batch-consistent calibration |
| Lead-free/RoHS-compliant plating | Matte tin finish over Alloy 42 leadframe - meets IPC-J-STD-020D Level 1 moisture sensitivity for standard SMT processing |
| Ultra-small SOT-363 package | 2.2 × 1.35 × 0.9 mm body - supports >10k units/in² layout density in portable and IoT sensor modules |
Applications
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Reference Clamp |
|---|---|
Use Scenario: Stabilizing ADC input range in 4–20mA loop-powered transmitters operating at 24V rail. IC Role / Device Role / Timing Role: Dual Zener provides independent 8.2V clamping for analog front-end protection and precision 5V LDO feedback reference. Use Value: Enables ±0.5% full-scale accuracy over -40°C to +85°C using matched tempco and low leakage (<0.7µA). | Use Scenario: Overvoltage protection on CC1/CC2 configuration channel lines in USB-C receptacles. IC Role / Device Role / Timing Role: Zener 1 clamps CC line to 8.2V during VCONN fault; Zener 2 protects auxiliary sideband use (SBU) signals. Use Value: Dual isolation prevents cross-talk between CC and SBU paths while meeting USB-IF ESD immunity requirements. |
| Low-Power Wearable Battery Monitor | Automotive Cabin Controller Voltage Reference |
Use Scenario: Monitoring Li-ion cell voltage (3.0–4.2V) via resistive divider into MCU ADC, with rail-independent reference. IC Role / Device Role / Timing Role: One Zener supplies 8.2V to a resistive divider network; second buffers reference for comparator hysteresis. Use Value: Achieves <10 ppm/°C effective reference drift using matched tempco elements and <0.7µA leakage at 3.3V bias. | Use Scenario: Providing stable 8.2V reference for LIN bus transceiver bias and microcontroller reset threshold detection. IC Role / Device Role / Timing Role: Zener 1 sets reset threshold; Zener 2 stabilizes LIN TX driver supply under load dump transients. Use Value: Maintains functional safety compliance (ISO 16750-2) with 150°C operation and 625°C/W thermal resistance on minimal copper. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5231BS-7-F | Single 5.1V Zener, SOT-363, 200mW, 10Ω ZZT, -2.7 to +1.2 mV/°C tempco | Lower voltage, single-element - suitable only where dual 8.2V regulation is not required | Select when needing tighter ZZT and lower tempco, but sacrificing dual-channel capability |
| BZX84C8V2LT1G | Single 8.2V Zener, SOT-23, 350mW, 15Ω ZZT, +3.2 to +6.2 mV/°C, higher PD | Higher power rating but no dual functionality - requires two devices for same circuit role | Choose when board space allows separate placement and higher 350mW dissipation is needed |
Compared with MMBZ5231BS-7-F and BZX84C8V2LT1G, BZX84C8V2S-7 uniquely delivers dual 8.2V regulation in one SOT-363, enabling compact dual-rail referencing without compromising tempco match or leakage performance - essential for space-constrained, thermally sensitive analog systems.
Availability
BZX84C8V2S-7 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, USB-C power delivery reference clamp, and low-power wearable battery monitor applications requiring stable component supply and RoHS-compliant sourcing.
Supply support for BZX84C8V2S-7 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 and manufacturing operations across Asia and the Americas.
The BZX84 series belongs to Diodes' precision Zener voltage reference product line, engineered for stable, low-leakage regulation in space-constrained, thermally demanding applications such as portable instrumentation and automotive subsystems.
FAQ
What is the maximum reverse voltage (VR) at which leakage current is specified for BZX84C8V2S-7?
The datasheet specifies maximum reverse leakage current (IR) of 0.7 µA at VR = 5.0 V. This value is measured under steady-state DC conditions at TA = 25°C and defines the upper bound of parasitic current in bias networks before zener conduction begins.
Can BZX84C8V2S-7 be used in parallel to increase power handling?
No - the two Zener elements are electrically isolated and not matched for current sharing. Parallel connection of either element with external components risks thermal runaway due to parametric mismatch. For higher power, use a single higher-rated Zener like BZX84C8V2LT1G (350mW) instead.
Is the SOT-363 package of BZX84C8V2S-7 compatible with standard 0.65 mm pitch reflow profiles?
Yes - the SOT-363 package has 0.65 mm pin pitch and meets IPC-J-STD-020D Level 1 moisture sensitivity. It is qualified for standard lead-free reflow profiles (peak 260°C, 60 sec max above 217°C), provided recommended pad layout (per Diodes AP02001) is followed to ensure thermal relief and solder joint integrity.
How does the +3.2 to +6.2 mV/°C temperature coefficient affect long-term voltage reference stability?
This positive tempco means VZ increases by 3.2–6.2 mV per °C rise. Over a 100°C range (−40°C to +60°C), drift is +0.32V to +0.62V - a 3.9–7.6% shift from 8.2V. For high-stability applications, this must be compensated via circuit design (e.g., opposing tempco components) or calibrated out in firmware.
BZX84C8V2S-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Configuration:
- -
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
BZX84C8V2S-7 FAQ
1.How can I place an order for BZX84C8V2S-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C8V2S-7 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 BZX84C8V2S-7 reliable?
The price and inventory of BZX84C8V2S-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C8V2S-7 is usually 5 days.
3.What payment methods are accepted for BZX84C8V2S-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C8V2S-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C8V2S-7?
BZX84C8V2S-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C8V2S-7 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 BZX84C8V2S-7?
For technical support, including BZX84C8V2S-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C8V2S-7 requirements.
6.How does Aetrix verify that BZX84C8V2S-7 is sourced from the original manufacturer or authorized distributors?
All BZX84C8V2S-7 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 BZX84C8V2S-7 meets industry standards.
7.What is the process for return or replacement of BZX84C8V2S-7?
All BZX84C8V2S-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C8V2S-7, 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 BZX84C8V2S-7 part is unused and in its original packaging.
Return procedure for BZX84C8V2S-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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Diodes Incorporated
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