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Diodes Incorporated BZX84C36Q-13-F
- Part No.:
- BZX84C36Q-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C36Q-13-F.pdf
- Description:
- DIODE ZENER 36V 300MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:2,902
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Product details
Overview
BZX84C36Q-13-F from Diodes Incorporated is a 36 V, 2 mA nominal Zener voltage regulator diode in SOT23 package, rated for 350 mW power dissipation at ambient temperature, with 90 Ω maximum Zener impedance at 2 mA test current and ±0.1 µA maximum reverse leakage at 30.4 V, used for precision voltage reference and overvoltage protection in automotive power management circuits.
For engineers reviewing the BZX84C36Q-13-F datasheet, BZX84C36Q-13-F pinout, BZX84C36Q-13-F application, or BZX84C36Q-13-F equivalent, key selection criteria include Zener voltage tolerance (34.0–38.0 V), thermal resistance (357 °C/W), AEC-Q101 qualification, green halogen-free construction, and SOT23-compatible automated assembly compatibility.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across load terminals under varying current conditions. Its planar die construction ensures consistent Zener characteristics and low leakage, with specified 2 mA test current and 0.5 mA knee current defining its regulation onset.
The device exhibits a negative temperature coefficient of −3.5 mV/°C below 5 V and transitions toward zero near 36 V, enabling predictable thermal drift compensation in reference designs. Its 350 mW rating applies only when terminals are held at ambient temperature-derating required above +25°C per Fig. 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V nominal, 34.0–38.0 V range at 2 mA - defines stable regulation point for mid-range voltage references |
| Power Dissipation (PD) | 350 mW at ambient temperature - sets maximum continuous power handling without forced cooling |
| Zener Impedance (ZZT) | 90 Ω max at 2 mA - determines output voltage variation under load current changes |
| Reverse Leakage (IR) | 0.1 µA max at 30.4 V - ensures minimal quiescent current in standby or high-impedance bias networks |
| Thermal Resistance (RθJA) | 357 °C/W - quantifies junction-to-ambient temperature rise per watt, critical for PCB layout thermal design |
| Temperature Coefficient | −3.5 mV/°C - enables predictable voltage drift modeling across operating temperature range |
| AEC-Q101 Qualified | Yes - confirms reliability for automotive electronics applications including engine control and body modules |
Pinout & Package
Package: SOT23 - surface-mount plastic case with matte tin-plated Alloy 42 leadframe, 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 system ground or lower-potential node in shunt regulation configuration |
| Cathode (Pin 2) | Zener breakdown terminal / regulated output node | Provides stable 36 V reference when reverse-biased; connects to input supply via series resistor |
| No-Connect (Pin 3) | Internal die attachment pad / mechanical support | Not electrically connected; serves thermal and mechanical anchoring function in SOT23 mold |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Enables tight Zener voltage tolerance and repeatable breakdown characteristics across production lots |
| AEC-Q101 qualification | Validates suitability for automotive under-hood and infotainment systems requiring extended temperature and lifetime reliability |
| Halogen- and antimony-free "Green" molding compound | Meets RoHS 3 and automotive environmental compliance requirements (<900 ppm Br, <900 ppm Cl, <1000 ppm Sb) |
| SOT23 footprint compatibility | Supports high-speed pick-and-place assembly and reflow soldering without lead coplanarity issues |
| 350 mW ambient-rated dissipation | Allows direct use in low-power bias networks without heatsinking in standard FR-4 layouts |
Applications
| Automotive ECU Power Monitoring | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Monitoring 12 V battery rail in engine control units to detect overvoltage events exceeding 15 V. IC Role / Device Role / Timing Role: Shunt voltage clamp protecting downstream LDOs and microcontrollers from transient surges. Use Value: 36 V Zener threshold provides margin above normal 14.5 V charging voltage while rejecting load-dump spikes up to 38 V. |
Use Scenario: Providing stable reference for 4–20 mA transmitter loop-powered sensors in factory automation. IC Role / Device Role / Timing Role: Precision voltage reference for DAC output scaling and analog front-end calibration. Use Value: 90 Ω Zener impedance ensures <±10 mV shift over 0.5–2 mA bias current range, improving sensor accuracy. |
| Consumer Power Adapter Feedback | Medical Diagnostic Equipment Biasing |
Use Scenario: Secondary-side voltage sensing in isolated flyback converters for USB-C PD adapters. IC Role / Device Role / Timing Role: Reference element in optocoupler feedback network regulating output voltage. Use Value: AEC-Q101 qualification supports robust operation in thermally stressed adapter enclosures with >50,000-hour MTBF. |
Use Scenario: Generating stable bias for photodiode transimpedance amplifiers in portable ultrasound probes. IC Role / Device Role / Timing Role: Low-noise voltage reference for analog signal chain DC offset control. Use Value: 0.1 µA max reverse leakage minimizes input bias error in high-gain, low-current measurement paths. |
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 | 36 V nominal, 350 mW, but 100 Ω ZZT max at 10 mA - higher impedance, different test current | Designed for general-purpose consumer electronics; not AEC-Q101 qualified | Select when automotive qualification is unnecessary and cost sensitivity outweighs thermal stability needs |
| BZX84-C36,115 | Same 36 V spec, but in SOT23-3L package with identical pinout; RoHS-compliant but non-AEC-Q101 | Targeted at industrial and computing markets; lacks automotive stress testing validation | Choose for non-automotive designs where full AEC-Q101 traceability is not mandated by OEM requirements |
Compared with MMBZ5245B-7-F and BZX84-C36,115, the BZX84C36Q-13-F delivers tighter thermal drift control (−3.5 mV/°C), guaranteed AEC-Q101 reliability, and lower Zener impedance at its specified 2 mA test point-making it optimal for safety-critical automotive voltage monitoring where long-term parametric stability is mandatory.
Availability
BZX84C36Q-13-F is available at Aetrix Electronics and suitable for automotive ECU power monitoring, industrial sensor signal conditioning, and consumer power adapter feedback requiring stable component supply with full AEC-Q101 traceability and green material compliance.
Supply support for BZX84C36Q-13-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, specializing in high-reliability components for automotive, industrial, and consumer markets with ISO/TS 16949 and IATF 16949 certification.
The BZX84C series belongs to Diodes' automotive-grade Zener diode product line, engineered specifically for voltage regulation and overvoltage protection in harsh-environment electronic control units and power management subsystems.
FAQ
What is the Zener test current for BZX84C36Q-13-F?
The nominal Zener voltage of 36 V is specified at a test current of 2 mA, as confirmed in the Electrical Characteristics Table on page 2 of DS18001 Rev. 33-2. This differs from lower-voltage variants tested at 5 mA, reflecting optimized regulation behavior in the 30–51 V range.
Is BZX84C36Q-13-F compatible with lead-free reflow profiles?
Yes-the device uses matte tin finish over Alloy 42 leadframe and is fully RoHS 3 compliant, qualified for standard JEDEC J-STD-020 Level 1 moisture sensitivity, and rated for peak reflow temperatures up to 260°C per MIL-STD-202 Method 208 solderability testing.
How does the "Q" suffix affect the part's specifications?
The "Q" denotes automotive qualification per AEC-Q101, including additional stress testing (HTOL, TCT, UHAST) and lot-level traceability. All electrical parameters remain identical to the standard BZX84C36-13-F, but screening and documentation meet automotive quality system requirements.
Can BZX84C36Q-13-F be used in series for higher voltage clamping?
No-Zener diodes are not designed for series stacking due to mismatched breakdown characteristics and thermal runaway risk. For 72 V clamping, use a single higher-voltage Zener like BZX84C75Q-13-F or a dedicated TVS array with matched dynamic impedance.
BZX84C36Q-13-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:
- ±5.56%
- 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 (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BZX84C36Q-13-F FAQ
1.How can I place an order for BZX84C36Q-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C36Q-13-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 BZX84C36Q-13-F reliable?
The price and inventory of BZX84C36Q-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZX84C36Q-13-F is usually 5 days.
3.What payment methods are accepted for BZX84C36Q-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C36Q-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C36Q-13-F?
BZX84C36Q-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C36Q-13-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 BZX84C36Q-13-F?
For technical support, including BZX84C36Q-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C36Q-13-F requirements.
6.How does Aetrix verify that BZX84C36Q-13-F is sourced from the original manufacturer or authorized distributors?
All BZX84C36Q-13-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 BZX84C36Q-13-F meets industry standards.
7.What is the process for return or replacement of BZX84C36Q-13-F?
All BZX84C36Q-13-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C36Q-13-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 BZX84C36Q-13-F part is unused and in its original packaging.
Return procedure for BZX84C36Q-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C36Q-13-F Tags
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Diodes Incorporated
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Diodes Incorporated
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MMSZ5231B-7-F
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MM5Z5V1ST1G
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