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Diodes Incorporated BZX84C36Q-7-F
- Part No.:
- BZX84C36Q-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BZX84C36Q-7-F.pdf
- Description:
- DIODE ZENER 36V 300MW SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
BZX84C36Q-7-F from Diodes Incorporated is an automotive-grade 36V Zener diode in SOT23 package, rated for 350mW power dissipation at 25°C ambient, with nominal Zener voltage 36V (min 34V, max 38V) at 2mA test current, ±0.1µA maximum reverse leakage at 30.4V, and 90Ω typical Zener impedance at 2mA - used for precision voltage regulation and overvoltage protection in automotive body control modules.
For engineers reviewing the BZX84C36Q-7-F datasheet, BZX84C36Q-7-F pinout, BZX84C36Q-7-F application, or BZX84C36Q-7-F equivalent, key selection criteria include Zener voltage tolerance (±5.6%), thermal resistance (357°C/W), AEC-Q101 qualification, SOT23 polarity marking, and low leakage performance under bias conditions.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable reference voltage across a defined current range (0.5–2mA). Its planar die construction ensures consistent voltage regulation and low temperature coefficient (−3.5mV/°C) near 36V, enabling predictable behavior in temperature-varying environments.
The device is optimized for surface-mount automated assembly and meets stringent automotive reliability standards. Its SOT23 package supports high-density PCB layouts while delivering 350mW dissipation under specified thermal conditions, with junction-to-ambient thermal resistance of 357°C/W when terminals are held at ambient temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36V nominal, 34–38V range at 2mA - defines regulated output voltage window under standard test conditions |
| Power Dissipation (PD) | 350mW at TA = 25°C - maximum continuous power handling without derating |
| Zener Impedance (ZZT) | 90Ω at IZT = 2mA - indicates voltage stability under small-signal AC variations |
| Reverse Leakage (IR) | 0.1µA max at VR = 30.4V - ensures minimal standby current in voltage-clamp circuits |
| Temperature Coefficient | −3.5mV/°C - quantifies voltage drift per degree Celsius near nominal Zener point |
| Package | SOT23 - 3-pin surface-mount outline with standardized pad layout and 0.008g mass |
| AEC-Q101 Qualified | Yes - validated for automotive applications including engine control, lighting, and infotainment systems |
Pinout & Package
Package: SOT23 - molded plastic case, UL 94V-0 flammability rating, matte tin-plated alloy 42 leadframe, moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward conduction terminal | Connected to lower-potential node in reverse-biased Zener configuration |
| Cathode (Pin 2) | Zener breakdown terminal | Connected to higher-potential node; voltage regulation occurs across this pin relative to anode |
| No-connect / Heat Sink (Pin 3) | Collector tab / thermal path | Internally connected to cathode in most SOT23 Zener variants; provides mechanical anchoring and minor thermal relief |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q101 compliant - enables use in safety-critical vehicle subsystems without additional qualification effort |
| Green packaging | Halogen- and antimony-free molding compound (<900ppm Br, <900ppm Cl, <1000ppm Sb) - meets global environmental compliance mandates |
| Planar die construction | Enables tight Zener voltage tolerance and repeatable breakdown characteristics across production lots |
| Low leakage at rated voltage | ≤0.1µA at 30.4V - minimizes quiescent current in always-on voltage-monitoring circuits |
| Lead-free & RoHS 3 compliant | Fully compliant with EU Directive 2015/863/EU - supports export to regulated markets without material declaration risk |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Voltage reference and overvoltage clamp in LIN bus transceiver power rails. IC Role / Device Role: Zener diode providing 36V rail clamping and stable bias for regulator feedback networks. Use Value: Prevents transient-induced latch-up in microcontroller peripherals during load-dump events up to 40V. |
Use Scenario: Precision voltage reference for 4–20mA loop-powered pressure sensor front-end. IC Role / Device Role: Stable 36V Zener reference establishing upper limit for analog signal scaling circuitry. Use Value: Maintains ±0.5% reference accuracy over −40°C to +125°C due to low tempco and AEC-Q101 validation. |
| Automotive Lighting Driver | Power Supply Overvoltage Protection |
Use Scenario: Overvoltage protection for LED driver IC supply pins in headlamp ECU. IC Role / Device Role: Shunt regulator clamping input rail during battery surge conditions (ISO 7637-2 Pulse 5a). Use Value: Absorbs 350mW transient energy without degradation, verified per AEC-Q101 stress testing. |
Use Scenario: Secondary overvoltage clamp on 24V DC-DC converter output stage. IC Role / Device Role: Fast-response shunt element limiting output to 36V during feedback loop failure. Use Value: 90Ω Zener impedance ensures rapid voltage stabilization within 100ns of overvoltage onset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5245BS-7-F | 36V nominal, but rated 200mW PD, 100Ω ZZT, no AEC-Q101 qualification | Limited to commercial-grade consumer electronics; not suitable for automotive deployment | Select only for cost-sensitive non-automotive designs where thermal margin exceeds 150mW |
| BZX84-C36LT1G | Same 36V rating and SOT23 package, but rated 300mW PD, 100Ω ZZT, AEC-Q101 qualified | Lower power rating reduces safe operating area in sustained overvoltage conditions | Prefer when board space allows larger heatsinking or when peak pulse energy is below 200mW |
Compared with MMBZ5245BS-7-F and BZX84-C36LT1G, BZX84C36Q-7-F delivers higher power margin (350mW vs. 200/300mW), tighter Zener impedance (90Ω), and full automotive qualification - making it the sole choice for ISO 16750-compliant vehicle subsystems requiring sustained 36V regulation.
Availability
BZX84C36Q-7-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, and LED lighting drivers requiring stable component supply with guaranteed AEC-Q101 compliance and traceable green manufacturing.
Supply support for BZX84C36Q-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 part belongs to the BZX84C series of automotive-qualified Zener diodes, designed specifically for voltage regulation and transient suppression in harsh-environment electronic control units where reliability, low leakage, and precise voltage thresholds are critical.
FAQ
What is the maximum reverse voltage before breakdown for BZX84C36Q-7-F?
The nominal Zener voltage is 36V with a tolerance range of 34V to 38V at 2mA test current. Breakdown begins at the minimum specified voltage (34V), and operation above 38V may exceed safe power dissipation limits unless current is strictly limited by external series resistance.
Is BZX84C36Q-7-F compatible with lead-free reflow soldering profiles?
Yes - it is fully RoHS 3 compliant and qualified for lead-free reflow per JEDEC J-STD-020. The matte tin finish on the alloy 42 leadframe ensures reliable wetting and intermetallic formation at peak temperatures up to 260°C for ≤60 seconds.
How does the temperature coefficient affect regulation accuracy over temperature?
With a temperature coefficient of −3.5mV/°C, the Zener voltage decreases by approximately 0.35V over a 100°C range (−40°C to +60°C). For high-accuracy references, this drift must be compensated in system-level calibration or mitigated using complementary components.
Can BZX84C36Q-7-F be used in parallel for higher power handling?
No - Zener diodes exhibit negative temperature coefficients and mismatched breakdown voltages; paralleling them causes current hogging and thermal runaway. Use a single appropriately rated device or switch to a higher-power Zener or active regulator for >350mW requirements.
BZX84C36Q-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:
- ±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-7-F FAQ
1.How can I place an order for BZX84C36Q-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZX84C36Q-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 BZX84C36Q-7-F reliable?
The price and inventory of BZX84C36Q-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 BZX84C36Q-7-F is usually 5 days.
3.What payment methods are accepted for BZX84C36Q-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZX84C36Q-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZX84C36Q-7-F?
BZX84C36Q-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZX84C36Q-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 BZX84C36Q-7-F?
For technical support, including BZX84C36Q-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZX84C36Q-7-F requirements.
6.How does Aetrix verify that BZX84C36Q-7-F is sourced from the original manufacturer or authorized distributors?
All BZX84C36Q-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 BZX84C36Q-7-F meets industry standards.
7.What is the process for return or replacement of BZX84C36Q-7-F?
All BZX84C36Q-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZX84C36Q-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 BZX84C36Q-7-F part is unused and in its original packaging.
Return procedure for BZX84C36Q-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZX84C36Q-7-F Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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