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Diodes Incorporated BZX84C36-7-F
- Part No.:
- BZX84C36-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C36-7-F.pdf
- Description:
- DIODE ZENER 36V 300MW SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:32,886
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Product details
Overview
BZX84C36-7-F from Diodes Incorporated is a 36V, 2mA nominal Zener diode in SOT23 package, rated for 350mW power dissipation at ambient temperature, with 90Ω maximum Zener impedance at test current and ±5% voltage tolerance (34.0–38.0V), used for precision voltage regulation and overvoltage protection in low-power analog circuits.
For engineers reviewing the BZX84C36-7-F datasheet, BZX84C36-7-F pinout, BZX84C36-7-F application, or BZX84C36-7-F equivalent, key selection criteria include Zener voltage accuracy at 2mA, thermal resistance of 357°C/W under lead-free mounting conditions, reverse leakage <0.1µA at 30.4V, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable reference voltage across varying load and supply conditions. Its planar die construction ensures consistent breakdown characteristics and low noise performance, while the SOT23 package enables high-density PCB layouts and compatibility with automated pick-and-place assembly.
The device exhibits a negative temperature coefficient of −3.5mV/°C near 36V, enabling predictable drift compensation in temperature-sensitive references. It delivers 25.2V Zener voltage at 0.5mA test current and supports up to 2mA nominal regulation current without exceeding thermal limits under standard FR-4 board conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36V nominal, 34.0–38.0V range at IZT = 2mA - defines stable regulation point for feedback networks |
| Power Dissipation | 350mW at TA = 25°C with terminals held at ambient - sets maximum continuous power handling on standard PCB |
| Zener Impedance (ZZT) | 90Ω max at f = 1kHz, IZT = 2mA - determines AC regulation stiffness and ripple rejection capability |
| Reverse Leakage (IR) | <0.1µA at VR = 30.4V - ensures minimal quiescent current in standby or high-impedance bias networks |
| Thermal Resistance (RθJA) | 357°C/W - defines junction-to-ambient temperature rise per watt under ideal heatsinking conditions |
| Temperature Coefficient | −3.5mV/°C - quantifies voltage drift with ambient temperature, critical for stable reference design |
Pinout & Package
Package: SOT23 - surface-mount plastic case with matte tin-plated Alloy 42 leadframe, UL 94V-0 rated, moisture sensitivity level 1, weight ≈0.008g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal | Connected to lower potential node in reverse-biased Zener configuration; must be referenced to ground or common return |
| Cathode (Pin 2) | Zener breakdown terminal | Connected to regulated voltage node; carries full Zener current during regulation; polarity marked by cathode band on package |
| Collector / NC (Pin 3) | Internal die substrate connection | Internally tied to cathode in standard Zener construction; electrically redundant but structurally required for SOT23 mechanical integrity |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Enables tight Zener voltage distribution (±5%) and repeatable breakdown characteristics across production lots |
| AEC-Q101 qualification | Validates reliability for automotive electronics including engine control modules and body electronics |
| Lead-free & RoHS 3 compliant | Meets EU Directive 2015/863/EU with <900ppm Br, <900ppm Cl, <1000ppm Sb - suitable for green manufacturing |
| Low capacitance (≈2.5pF) | Minimizes signal coupling and high-frequency loading in RF bias and timing circuits |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 36V reference for linear regulator feedback or ADC reference divider networks. IC Role / Device Role: Voltage reference element establishing precise DC bias point in analog signal chains. Use Value: Maintains ±5% output stability over temperature and load, reducing calibration burden in industrial sensor interfaces. |
Use Scenario: Protecting microcontroller I/O pins from transient surges exceeding 36V in industrial fieldbus nodes. IC Role / Device Role: Shunt clamping device diverting excess energy to ground before damage threshold is reached. Use Value: Limits peak voltage to 38V with <0.1µA leakage below clamp threshold, preserving signal integrity during normal operation. |
| Temperature-Compensated Bias | Automotive Sensor Excitation |
Use Scenario: Generating temperature-stable bias for op-amp input stages in precision instrumentation amplifiers. IC Role / Device Role: Compensated reference source leveraging known −3.5mV/°C TC to offset amplifier drift. Use Value: Enables <±100ppm/°C system-level drift correction when paired with positive-TC components. |
Use Scenario: Supplying regulated excitation voltage to resistive temperature detectors (RTDs) in engine coolant sensors. IC Role / Device Role: Stable excitation source tolerant of battery voltage fluctuations (9–16V) and EMI. Use Value: Delivers 36V ±5% with AEC-Q101 qualification, ensuring functional safety compliance in ASIL-B systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5245B-7-F | 36V nominal, 200mW rating, 100Ω ZZT, no AEC-Q101 qualification | Limited to commercial-grade consumer electronics; unsuitable for automotive or industrial environments requiring extended temperature operation | Select when cost is primary constraint and AEC-Q101 is not mandated |
| BZX84-C36,115 | Same 36V spec, 350mW, but packaged in 10,000/reel (−13-F variant); identical electricals and qualification | No functional difference - only packaging and reel size differ; compatible in all designs using SOT23 footprint | Choose for high-volume production where tape-and-reel quantity aligns with assembly line requirements |
Compared with MMBZ5245B-7-F, BZX84C36-7-F offers higher power margin (350mW vs. 200mW) and automotive qualification; versus BZX84-C36,115, it differs only in reel size (3,000 vs. 10,000 units), with identical electrical, thermal, and reliability performance.
Availability
BZX84C36-7-F is available at Aetrix Electronics and suitable for automotive sensor modules, industrial power supply references, and precision analog bias networks requiring stable component supply with traceable green sourcing and long-term lifecycle support.
Supply support for BZX84C36-7-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 integrated circuits, specializing in high-reliability, energy-efficient components for automotive, industrial, and computing markets.
The BZX84 series belongs to Diodes' precision Zener diode product line, engineered for stable voltage reference and overvoltage protection in space-constrained, high-volume applications demanding AEC-Q101 compliance and green material content.
FAQ
What is the maximum Zener test current for BZX84C36-7-F?
The nominal Zener test current is 2mA, as specified in the Electrical Characteristics table. At this current, the device achieves its rated 36V nominal voltage with ±5% tolerance. Operation above 2mA is permissible within the 350mW power limit, but voltage regulation accuracy degrades beyond the specified test condition due to dynamic impedance effects.
Is BZX84C36-7-F suitable for use in automotive applications?
Yes - BZX84C36-7-F is qualified to AEC-Q101 standards, confirming its suitability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. It operates across −65°C to +150°C and meets stringent reliability, thermal cycling, and humidity testing requirements defined in the standard.
How does the SOT23 package affect thermal performance?
The SOT23 package delivers a thermal resistance of 357°C/W junction-to-ambient when terminals are held at ambient temperature. On standard FR-4 PCBs with recommended pad layout, RθJA rises to 417°C/W. This means at 350mW dissipation, junction temperature can exceed ambient by up to 124°C - requiring careful layout and derating above 70°C ambient.
What is the significance of the "-7-F" suffix in the part number?
The "-7-F" suffix indicates standard-grade (non-automotive) packaging in 3,000-unit tape-and-reel format, with fully lead-free and RoHS 3-compliant plating. The "F" denotes Diodes Incorporated's green manufacturing standard, confirming halogen- and antimony-free molding compound meeting <900ppm Br+Cl and <1000ppm Sb thresholds.
BZX84C36-7-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):
- 36 V
- Tolerance:
- ±6%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 90 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 25.2 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
BZX84C36-7-F FAQ
1.How can I place an order for BZX84C36-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C36-7-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 BZX84C36-7-F reliable?
The price and inventory of BZX84C36-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C36-7-F is usually 5 days.
3.What payment methods are accepted for BZX84C36-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C36-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C36-7-F?
BZX84C36-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C36-7-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 BZX84C36-7-F?
For technical support, including BZX84C36-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C36-7-F requirements.
6.How does Aetrix verify that BZX84C36-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84C36-7-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 BZX84C36-7-F meets industry standards.
7.What is the process for return or replacement of BZX84C36-7-F?
All BZX84C36-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C36-7-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 BZX84C36-7-F part is unused and in its original packaging.
Return procedure for BZX84C36-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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