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Diodes Incorporated BZX84C3V6-7-F
- Part No.:
- BZX84C3V6-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C3V6-7-F.pdf
- Description:
- DIODE ZENER 3.6V 300MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:8,197
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Product details
Overview
BZX84C3V6-7-F from Diodes Incorporated is a 3.6 V ±0.2 V, 350 mW surface-mount Zener diode in SOT23 package, rated for 5 mA test current and 90 Ω dynamic impedance at 1 kHz, used for precision voltage regulation and overvoltage protection in low-power analog circuits.
For engineers reviewing the BZX84C3V6-7-F datasheet, BZX84C3V6-7-F pinout, BZX84C3V6-7-F application, or BZX84C3V6-7-F equivalent, key selection criteria include nominal Zener voltage tolerance (±5.6%), thermal resistance (357 °C/W), reverse leakage (≤5.0 µA at 1.0 V), and AEC-Q101 qualification status for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown with a specified nominal voltage of 3.6 V at 5 mA test current, exhibiting a temperature coefficient of −3.5 mV/°C and maximum Zener impedance of 90 Ω at 1 kHz. It maintains stable regulation under ambient temperatures from −65 °C to +150 °C.
The device uses planar die construction in a molded plastic SOT23 case with matte tin-plated Alloy 42 leads, qualified to AEC-Q101 for high-reliability automotive applications and fully RoHS-compliant with halogen- and antimony-free "Green" molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.6 V nominal, 3.4–3.8 V range at 5 mA - ensures tight regulation tolerance for reference and clamp functions |
| Power Dissipation | 350 mW at ambient temperature - defines maximum continuous power handling without forced cooling |
| Zener Impedance (ZZT) | 90 Ω max at 1 kHz, 5 mA - determines AC regulation stability and noise rejection capability |
| Reverse Leakage (IR) | ≤5.0 µA at 1.0 V - critical for low-current bias networks and battery-powered sensing circuits |
| Thermal Resistance (RθJA) | 357 °C/W - quantifies junction-to-ambient heat transfer efficiency on standard FR-4 PCB |
| Temperature Coefficient | −3.5 mV/°C - enables predictable voltage drift compensation in temperature-sensitive designs |
Pinout & Package
Package: SOT23 - 3-pin surface-mount plastic package with 0.915 mm lead pitch, 2.40 mm body length, and 1.30 mm body width; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal | Connected to lower potential side in reverse-biased Zener configuration; required for proper clamping polarity |
| Cathode (Pin 2) | Zener breakdown terminal | Connected to higher potential side; carries regulated voltage output during reverse operation |
| No Connection (Pin 3) | Internal die attach flag | Electrically isolated; serves mechanical anchoring only - must remain unconnected in PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Enables consistent Zener voltage distribution and improved long-term stability vs. diffused junctions |
| AEC-Q101 qualification | Validates reliability for automotive electronics including infotainment power rails and sensor interfaces |
| Lead-free & RoHS 3 compliant | Meets EU Directive 2015/863/EU with <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - supports green manufacturing |
| SOT23 footprint compatibility | Enables drop-in replacement in existing 3-pin SOT23 layouts without board redesign or retooling |
Applications
| Power Supply Clamp | Reference Voltage Source |
|---|---|
Use Scenario: Protecting microcontroller I/O pins from transient overvoltage events in industrial control modules. IC Role / Device Role / Timing Role: Zener clamping element placed between signal line and ground to limit voltage excursion to 3.6 V. Use Value: Prevents latch-up and ESD damage by shunting excess energy before rail voltage exceeds absolute maximum ratings. |
Use Scenario: Providing stable 3.6 V reference for ADC biasing in battery-powered environmental sensors. IC Role / Device Role / Timing Role: Low-current Zener reference generating fixed voltage for analog front-end calibration. Use Value: Enables ±1% measurement accuracy over −40 °C to +85 °C due to predictable TC and low dynamic impedance. |
| Automotive Sensor Interface | Low-Power Voltage Regulator |
Use Scenario: Level-shifting and overvoltage protection for CAN transceiver supply monitoring in vehicle telematics units. IC Role / Device Role / Timing Role: Reverse-biased Zener connected across 5 V rail to detect undervoltage/overvoltage faults. Use Value: Supports AEC-Q101 compliance requirements while maintaining <5 µA standby current at 1 V reverse bias. |
Use Scenario: Regulating 3.6 V supply for real-time clock (RTC) backup circuitry in embedded systems. IC Role / Device Role / Timing Role: Simple shunt regulator replacing LDO where ultra-low quiescent current is mandatory. Use Value: Delivers stable 3.6 V output with <100 ppm/°C drift and no external pass components required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5226BS-7-F | Same 3.6 V nominal, but 200 mW rating and 100 Ω ZZT; SOT23-3L package with identical pinout | Lower power handling limits use in sustained clamp scenarios; suitable only for intermittent surge suppression | Select when cost sensitivity outweighs power margin requirements and thermal derating is acceptable |
| BZX84-C3V6,115 | NXP variant with same electrical specs but different marking code (Z115) and non-AEC-Q101 qualification | Lacks automotive reliability validation; not approved for under-hood or safety-critical subsystems | Prefer for consumer-grade portable devices where AEC-Q101 is unnecessary and supply chain diversification is desired |
Compared with MMBZ5226BS-7-F and BZX84-C3V6,115, the BZX84C3V6-7-F offers superior thermal performance (350 mW vs. 200 mW), tighter Zener impedance (90 Ω vs. 100 Ω), and full AEC-Q101 qualification - making it the optimal choice for automotive and industrial applications demanding robust voltage stabilization.
Availability
BZX84C3V6-7-F is available at Aetrix Electronics and suitable for automotive sensor interfaces, low-power reference circuits, and industrial power supply clamping requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZX84C3V6-7-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.
This device belongs to the BZX84C series of precision Zener diodes designed specifically for voltage regulation, reference, and overvoltage protection in space-constrained, high-reliability applications including automotive electronics and industrial controls.
FAQ
What is the maximum reverse voltage this Zener can withstand before breakdown?
The BZX84C3V6-7-F has a nominal Zener voltage of 3.6 V at 5 mA test current, with a guaranteed breakdown range of 3.4 V to 3.8 V. Its absolute maximum reverse voltage rating is not defined separately - operation beyond 3.8 V at rated current will increase power dissipation and may exceed thermal limits if not properly derated.
Is this part suitable for use in automotive applications?
Yes - the BZX84C3V6-7-F is explicitly qualified to AEC-Q101 standards for high-reliability automotive use. It meets stringent requirements for temperature cycling, humidity resistance, and mechanical shock, and is commonly deployed in engine control units, body electronics, and ADAS sensor interfaces.
How does the −3.5 mV/°C temperature coefficient affect circuit performance?
The negative temperature coefficient means the Zener voltage decreases by 3.5 mV per degree Celsius rise in junction temperature. In precision references, this drift must be compensated via circuit topology (e.g., combining with positive-TC components) or operating within narrow ambient ranges to maintain ±0.5% regulation accuracy.
Can this Zener be used in place of a 3.3 V device like BZX84C3V3?
No - the BZX84C3V6-7-F is not a functional substitute for BZX84C3V3 due to its higher nominal voltage (3.6 V vs. 3.3 V) and distinct Zener impedance (90 Ω vs. 95 Ω). Substitution would shift regulation points, potentially violating downstream IC voltage tolerances or altering feedback loop behavior in regulated supplies.
BZX84C3V6-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 3.6 V
- Tolerance:
- ±6%
- Power - Max:
- 300 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-23-3
BZX84C3V6-7-F FAQ
1.How can I place an order for BZX84C3V6-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C3V6-7-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 BZX84C3V6-7-F reliable?
The price and inventory of BZX84C3V6-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C3V6-7-F is usually 5 days.
3.What payment methods are accepted for BZX84C3V6-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C3V6-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C3V6-7-F?
BZX84C3V6-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C3V6-7-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 BZX84C3V6-7-F?
For technical support, including BZX84C3V6-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C3V6-7-F requirements.
6.How does Aetrix verify that BZX84C3V6-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84C3V6-7-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 BZX84C3V6-7-F meets industry standards.
7.What is the process for return or replacement of BZX84C3V6-7-F?
All BZX84C3V6-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C3V6-7-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 BZX84C3V6-7-F part is unused and in its original packaging.
Return procedure for BZX84C3V6-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C3V6-7-F Tags
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