My Inquiry
My Account
Diodes Incorporated BZT52C36Q-7-F
- Part No.:
- BZT52C36Q-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C36Q-7-F.pdf
- Description:
- DIODE ZENER 36V 370MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:7,006
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BZT52C36Q-7-F from Diodes Incorporated is an automotive-grade surface-mount Zener diode with a nominal zener voltage of 36 V, ±5.6% tolerance (34.0–38.0 V), 500 mW power dissipation at TL = +75°C, 90 Ω maximum zener impedance at 2 mA test current, and −2 mV/°C temperature coefficient. It serves as a precision voltage reference or overvoltage clamp in automotive power rail monitoring circuits.
For engineers reviewing the BZT52C36Q-7-F datasheet, BZT52C36Q-7-F pinout, BZT52C36Q-7-F application, or BZT52C36Q-7-F equivalent, key selection criteria include its AEC-Q101 qualification, SOD123 package thermal performance (RθJL = 150 °C/W), low leakage (<0.1 µA at 27.4 V), and stable regulation under transient load conditions in engine control units and body electronics.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage across its cathode–anode terminals. Its planar die construction ensures consistent breakdown characteristics and long-term stability under thermal cycling.
The device is rated for operation from −65 °C to +150 °C, with derated power dissipation above +25 °C (370 mW at TA = +25 °C, dropping to 500 mW only at lead temperature TL = +75 °C per note 7). Its 94V-0 flammability-rated molded plastic case supports automated reflow assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V nominal, 34.0–38.0 V range at 2 mA - defines precise clamping threshold for 36 V rail protection |
| Power Dissipation (PD) | 500 mW at TL = +75 °C - enables sustained regulation in thermally constrained PCB layouts |
| Zener Impedance (ZZT) | 90 Ω max at IZT = 2 mA - ensures minimal voltage shift under dynamic load transients |
| Reverse Leakage (IR) | <0.1 µA at VR = 27.4 V - guarantees negligible standby current in always-on automotive modules |
| Temperature Coefficient | −2 mV/°C - provides predictable, linear drift for compensated reference designs |
| Package | SOD123 - 2-pin surface-mount outline with 0.57 mm lead width and 2.65 mm body width for high-density routing |
Pinout & Package
Package: SOD123 - molded plastic case with matte tin-plated alloy 42 leadframe, cathode band marking, UL 94V-0 flammability rating, and moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system GND or lower-potential rail; forms return path during reverse conduction |
| Cathode | Voltage regulation node | Connected to protected node (e.g., microcontroller VDD); clamps excess voltage above 36 V |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications including ECU, BCM, and ADAS sensor modules |
| Planar die construction | Delivers tight VZ distribution and low parametric drift over 1000-hour HTOL stress |
| Lead-free & halogen-free | Complies with RoHS 2 (2011/65/EU) and Diodes Inc.'s "Green" definition (<900 ppm Br+Cl, <1000 ppm Sb) |
| Automated assembly compatible | SOD123 footprint supports standard reflow profiles (peak 260 °C, 10 s) without solder joint voiding |
Applications
| Engine Control Unit (ECU) Power Monitoring | Body Control Module (BCM) Voltage Clamp |
|---|---|
Use Scenario: Clamping 36 V battery-supplied logic rails during load-dump transients in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to limit voltage excursions to ≤38 V. Use Value: Prevents damage to 3.3 V or 5 V LDOs and microcontrollers by absorbing up to 500 mW surge energy without latch-up. |
Use Scenario: Stabilizing 36 V supply to LIN transceivers and door module actuators in BCMs. IC Role / Device Role / Timing Role: Precision voltage reference for feedback loops in buck regulators powering BCM sub-circuits. Use Value: Maintains ±5.6% regulation accuracy across −40 °C to +125 °C ambient, ensuring reliable LIN communication integrity. |
| ADAS Camera Power Protection | Electric Power Steering (EPS) Sensor Reference |
Use Scenario: Protecting image sensor analog front-end from ISO 7637-2 pulse 5a/b surges on 36 V camera power lines. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp placed directly at sensor power input. Use Value: Limits clamping time to <100 ns due to low junction capacitance (~2 pF), preserving signal fidelity in high-speed video paths. |
Use Scenario: Providing stable 36 V reference for torque sensor Wheatstone bridge excitation in EPS motor control units. IC Role / Device Role / Timing Role: Low-drift voltage reference with −2 mV/°C TC, used in ratiometric bridge biasing. Use Value: Enables <±0.1% bridge output error over temperature, critical for ASIL-B functional safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5245BQ-7-F | Zener voltage 36 V (same), but SOD123 package with 300 mW PD at TA = +25 °C and higher ZZT (120 Ω) | Lower power handling limits use in sustained overvoltage events; not AEC-Q101 qualified | Select only for cost-sensitive non-automotive industrial applications where transient duration is <10 ms |
| BZX84-C36-Q-7-F | Same 36 V rating and AEC-Q101 qualification, but SOT23 package with higher RθJA (400 °C/W) and 350 mW PD | Thermal derating requires larger copper area; less suitable for compact ECU modules with limited board space | Prefer when existing SOT23 footprint reuse is required and thermal margin allows ≥20 °C ambient headroom |
Compared with MMSZ5245BQ-7-F and BZX84-C36-Q-7-F, BZT52C36Q-7-F delivers superior thermal robustness (500 mW at TL = +75 °C), tighter impedance (90 Ω vs. ≥120 Ω), and full automotive qualification-making it the optimal choice for space-constrained, thermally demanding ECU and BCM designs.
Availability
BZT52C36Q-7-F is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, ADAS camera systems, and electric power steering sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZT52C36Q-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 semiconductor company specializing in discrete, analog, and mixed-signal devices, with design and manufacturing operations across Asia and the Americas.
The BZT52C series belongs to Diodes' automotive-qualified Zener diode product line, engineered specifically for voltage regulation and transient suppression in harsh-environment vehicle subsystems including powertrain, chassis, and infotainment.
FAQ
What is the maximum reverse leakage current for BZT52C36Q-7-F at 27.4 V?
The maximum reverse leakage current is 0.1 µA at VR = 27.4 V and TA = +25 °C, as specified in the Electrical Characteristics table. This ultra-low leakage ensures minimal power loss in always-on automotive modules such as telematics and gateway ECUs.
Is BZT52C36Q-7-F compatible with lead-free reflow soldering processes?
Yes. The device uses matte tin finish annealed over alloy 42 leadframe and is qualified for standard lead-free reflow profiles, including peak temperatures up to 260 °C for 10 seconds. Its SOD123 package meets IPC/JEDEC J-STD-020 moisture sensitivity level 1.
How does the temperature coefficient affect regulation accuracy over automotive temperature ranges?
With a temperature coefficient of −2 mV/°C, the zener voltage shifts −2 mV per degree Celsius rise. Over −40 °C to +125 °C, total drift is ±330 mV (±0.92%), remaining within the 34.0–38.0 V specification window and supporting stable regulation in under-hood environments.
Can BZT52C36Q-7-F be used as a replacement for BZT52C36-7-F in new designs?
Yes-BZT52C36Q-7-F is the automotive-qualified (AEC-Q101) version of the commercial BZT52C36-7-F, sharing identical electrical specs and SOD123 packaging. The "Q" suffix denotes automotive qualification, making it mandatory for automotive applications but fully backward-compatible in form, fit, and function.
BZT52C36Q-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 36 V
- Tolerance:
- ±5.56%
- Power - Max:
- 370 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:
- SOD-123
BZT52C36Q-7-F FAQ
1.How can I place an order for BZT52C36Q-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C36Q-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 BZT52C36Q-7-F reliable?
The price and inventory of BZT52C36Q-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 BZT52C36Q-7-F is usually 5 days.
3.What payment methods are accepted for BZT52C36Q-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C36Q-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C36Q-7-F?
BZT52C36Q-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C36Q-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 BZT52C36Q-7-F?
For technical support, including BZT52C36Q-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C36Q-7-F requirements.
6.How does Aetrix verify that BZT52C36Q-7-F is sourced from the original manufacturer or authorized distributors?
All BZT52C36Q-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 BZT52C36Q-7-F meets industry standards.
7.What is the process for return or replacement of BZT52C36Q-7-F?
All BZT52C36Q-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C36Q-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 BZT52C36Q-7-F part is unused and in its original packaging.
Return procedure for BZT52C36Q-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BZT52C36Q-7-F Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
