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Diodes Incorporated BZX84C3V6T-7-F
- Part No.:
- BZX84C3V6T-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOT-523
- Datasheet:
-
BZX84C3V6T-7-F.pdf
- Description:
- DIODE ZENER 3.6V 150MW SOT523
- Quantity:
- Payment:
- Shipping:
Inventory:3,891
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Product details
Overview
BZX84C3V6T-7-F from Diodes Incorporated is a 3.6 V, 150 mW surface-mount Zener diode in SOT-523 package, rated for 5 mA test current with 90 Ω dynamic impedance at 1 kHz and ±0.2 V zener voltage tolerance, used for precision voltage regulation and reference in low-power sensor biasing circuits.
For engineers reviewing the BZX84C3V6T-7-F datasheet, BZX84C3V6T-7-F pinout, BZX84C3V6T-7-F application, or BZX84C3V6T-7-F equivalent, key selection criteria include zener voltage accuracy (3.4–3.8 V), thermal resistance (833 °C/W), RoHS-compliant matte tin plating, and SOT-523 footprint compatibility with space-constrained PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load or supply conditions. It features planar die construction for consistent parametric performance and is characterized at 25°C with 5 mA test current (IZT) and 1 mA knee current (IZK).
Its temperature coefficient of zener voltage is -3.5 to 0 mV/°C at 5 mA, indicating minimal drift over temperature, and it exhibits 5.0 µA maximum reverse leakage (IR) at VR = 1.0 V - critical for low-quiescent-current designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.6 V nominal, 3.4–3.8 V range at IZT = 5 mA - ensures tight regulation in 3.3 V rail monitoring |
| Power Dissipation (PD) | 150 mW at TA = 25°C - limits continuous current to ~41 mA at 3.6 V in ambient air |
| Zener Impedance (ZZT) | 90 Ω at IZT = 5 mA, f = 1 kHz - defines output impedance for AC ripple suppression |
| Reverse Leakage (IR) | 5.0 µA max at VR = 1.0 V - preserves battery life in always-on sensing nodes |
| Thermal Resistance (RθJA) | 833 °C/W on FR-4 board - requires derating above 25°C ambient per Fig. 1 curve |
| Operating Temperature | -65 to +150 °C - supports industrial and automotive under-hood environments |
Pinout & Package
Package: SOT-523 - ultra-small 3-pin surface-mount plastic case (1.6 mm × 0.8 mm × 0.9 mm), UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal / cathode reference ground path | Connected to circuit ground when used as shunt regulator; polarity must match schematic symbol |
| Cathode (Pin 2) | Zener breakdown terminal / regulated output node | Connected to input voltage via series resistor; delivers stable 3.6 V to load |
| No-connect (Pin 3) | Non-functional leadframe extension | Internally unconnected; no electrical function - must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SOT-523 footprint | Enables placement in <1.0 mm² PCB area - ideal for wearables and miniaturized IoT sensors |
| Lead-free, RoHS-compliant plating | Matte tin finish over Alloy 42 leadframe - meets IPC-J-STD-020D solderability and environmental compliance |
| Low zener impedance (90 Ω) | Minimizes output voltage variation under dynamic load changes - improves ADC reference stability |
| Controlled tempco (-3.5 to 0 mV/°C) | Reduces calibration drift in temperature-sensitive analog front-ends without external compensation |
Applications
| Temperature Sensor Biasing | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Providing stable 3.6 V bias to thermistor or silicon bandgap sensor elements in environmental monitoring modules. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise operating point for analog signal conditioning. Use Value: Maintains sensor linearity within ±0.5% over -40 to +85°C due to low tempco and tight VZ tolerance. | Use Scenario: Generating clean reset threshold for 3.3 V microcontrollers during power-up and brown-out events. IC Role / Device Role / Timing Role: Zener-clamped voltage detector feeding RC delay network to reset logic. Use Value: Ensures deterministic reset assertion at 3.6 V ±0.2 V, preventing premature MCU wake-up. |
| USB-C Power Negotiation Reference | Low-Power IoT Node Voltage Clamp |
Use Scenario: Acting as precision clamp in CC line voltage divider for USB PD sink detection circuitry. IC Role / Device Role / Timing Role: Stable reference node defining PD contract voltage thresholds in Type-C port controllers. Use Value: Enables accurate 3.6 V threshold detection with <10 µA leakage - avoids false PD negotiation failures. | Use Scenario: Clamping battery voltage to protect BLE SoC inputs during Li-ion charging cycles. IC Role / Device Role / Timing Role: Overvoltage protection element limiting input to 3.8 V maximum in energy-harvesting nodes. Use Value: Absorbs transient surges up to 150 mW without degradation - extends node lifetime in field-deployed sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5227BT-7-F | Zener voltage 3.6 V (same), but 350 mW rating and SOT-23 package - higher power, larger footprint | Suitable for higher-current regulation (>50 mA), not space-constrained designs | Select when thermal margin >150 mW is required and PCB area allows SOT-23 |
| BZX84-C3V6,115 | Same 3.6 V rating and SOT-523 package, but Nexperia variant with 100 Ω ZZT and non-green molding compound | Acceptable where halogen-free compliance is not mandated | Choose if legacy supply chain alignment with Nexperia is prioritized over Diodes Inc.'s green compound |
Compared with MMBZ5227BT-7-F and BZX84-C3V6,115, the BZX84C3V6T-7-F offers optimal balance of ultra-compact size, RoHS/green compliance, and low-leakage performance for next-gen low-power embedded systems.
Availability
BZX84C3V6T-7-F is available at Aetrix Electronics and suitable for temperature sensor biasing, microcontroller reset circuits, USB-C power negotiation references, and low-power IoT node voltage clamping requiring stable component supply and full traceability.
Supply support for BZX84C3V6T-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.
The BZX84 series belongs to Diodes' precision Zener portfolio designed specifically for space-constrained, low-power voltage reference and regulation in portable and battery-operated electronics.
FAQ
What is the maximum reverse leakage current for BZX84C3V6T-7-F at 1.0 V?
The maximum reverse leakage current (IR) is 5.0 µA at VR = 1.0 V and TA = 25°C, as specified in the Electrical Characteristics table. This value remains valid across the full operating temperature range and supports ultra-low-power design requirements in always-on sensor nodes.
Can BZX84C3V6T-7-F be used in place of a 3.3 V Zener diode?
No - BZX84C3V6T-7-F has a nominal zener voltage of 3.6 V (range 3.4–3.8 V), not 3.3 V. Substituting it for a 3.3 V part would raise the regulated voltage by ~0.3 V, potentially exceeding absolute maximum ratings of downstream 3.3 V logic. Use BZX84C3V3T-7-F for 3.3 V applications.
Is the SOT-523 package compatible with standard reflow profiles?
Yes - the SOT-523 package is qualified for lead-free reflow per J-STD-020D Level 1 moisture sensitivity, with peak temperatures up to 260°C. Its matte tin plating ensures reliable wetting during standard Pb-free SAC305 profile ramp-soak-reflow cycles.
Does BZX84C3V6T-7-F require a series current-limiting resistor?
Yes - like all shunt Zener regulators, it requires an external series resistor to limit current through the diode to stay within its 150 mW power rating. For 5 mA IZT at 3.6 V with a 5 V supply, a 280 Ω resistor is typical; calculation must account for worst-case VZ and supply variation.
BZX84C3V6T-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):
- 3.6 V
- Tolerance:
- ±6%
- Power - Max:
- 150 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 5 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-523
BZX84C3V6T-7-F FAQ
1.How can I place an order for BZX84C3V6T-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C3V6T-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 BZX84C3V6T-7-F reliable?
The price and inventory of BZX84C3V6T-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 BZX84C3V6T-7-F is usually 5 days.
3.What payment methods are accepted for BZX84C3V6T-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C3V6T-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C3V6T-7-F?
BZX84C3V6T-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C3V6T-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 BZX84C3V6T-7-F?
For technical support, including BZX84C3V6T-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C3V6T-7-F requirements.
6.How does Aetrix verify that BZX84C3V6T-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84C3V6T-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 BZX84C3V6T-7-F meets industry standards.
7.What is the process for return or replacement of BZX84C3V6T-7-F?
All BZX84C3V6T-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C3V6T-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 BZX84C3V6T-7-F part is unused and in its original packaging.
Return procedure for BZX84C3V6T-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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