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Diodes Incorporated BZT52C36S-7
- Part No.:
- BZT52C36S-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
BZT52C36S-7.pdf
- Description:
- DIODE ZENER 36V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:1,601
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Product details
Overview
BZT52C36S-7 from Diodes Incorporated is a surface-mount Zener diode with nominal zener voltage 36 V, 2 mA test current, 90 Ω maximum zener impedance at 1 kHz, 0.5 mA knee current, and ±5% voltage tolerance (34.0–38.0 V). It operates in reverse-bias regulation mode for precision voltage reference and overvoltage protection in low-power analog circuits.
For engineers reviewing the BZT52C36S-7 datasheet, BZT52C36S-7 pinout, BZT52C36S-7 application, or BZT52C36S-7 equivalent, key selection criteria include zener voltage accuracy, thermal resistance (625 °C/W), power dissipation (200 mW), SOD323 package compatibility, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode uses planar die construction to ensure stable breakdown characteristics across temperature. Its cathode-band polarity and matte tin-plated alloy-42 leadframe support automated SMT assembly and solderability per MIL-STD-202.
The device delivers regulated output under reverse bias with a temperature coefficient of +25.2 mV/°C and exhibits typical total capacitance below 10 pF at 1 V reverse bias-critical for noise-sensitive voltage reference and signal-clamping applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 36 V nominal, 34.0–38.0 V range at IZT = 2 mA - defines precise clamping threshold |
| Power Dissipation (PD) | 200 mW - limits continuous regulation capability on FR-4 PCB with standard pad layout |
| Zener Impedance (ZZT) | 90 Ω max at 1 kHz - determines AC ripple rejection in reference circuits |
| Reverse Current (IR) | 0.1 µA max at VR = 30.4 V - ensures low leakage in high-impedance bias networks |
| Thermal Resistance (RθJA) | 625 °C/W - requires derating above +25°C ambient for sustained operation |
| Operating Temperature | −65 to +150 °C - supports extended-range industrial and automotive environments |
Pinout & Package
Package: SOD323 - ultra-compact surface-mount plastic case (1.30 mm × 1.70 mm × 0.90 mm), UL 94V-0 rated, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection in reverse-bias regulation | Connected to lower potential node when used as shunt regulator or clamp |
| Cathode | Zener breakdown terminal / high-side connection | Marked with band; ties to regulated voltage rail or input node requiring overvoltage limiting |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Enables tight VZ tolerance (±5%) and repeatable breakdown behavior across production lots |
| AEC-Q101 qualification | Validates reliability for automotive electronics including body control modules and sensor interfaces |
| SOD323 footprint | Supports high-density PCB layouts and compatibility with standard 0805-class pick-and-place equipment |
| Lead-free & halogen-free | Meets RoHS 2 and JEDEC J-STD-020 Level 1 requirements without compromising thermal performance |
Applications
| Automotive Sensor Reference | Industrial Analog Signal Conditioning |
|---|---|
Use Scenario: Providing stable 36 V reference for pressure transducer excitation in engine control units. IC Role / Device Role / Timing Role: Shunt voltage regulator maintaining constant bias voltage despite supply fluctuations. Use Value: Enables <±0.5% measurement accuracy by minimizing reference drift across −40°C to +125°C. | Use Scenario: Clamping ADC input to prevent overvoltage damage during transient surges in PLC analog I/O modules. IC Role / Device Role / Timing Role: Reverse-biased overvoltage protector absorbing energy spikes up to 200 mW. Use Value: Limits input to ≤38 V while adding <10 pF parasitic capacitance-preserving signal bandwidth. |
| Low-Power Battery Monitor | USB-C Power Negotiation Reference |
Use Scenario: Monitoring 36 V LiFePO4 battery stack voltage via resistive divider with integrated regulation. IC Role / Device Role / Timing Role: Precision zener reference stabilizing divider output for microcontroller ADC sampling. Use Value: Maintains ±5% voltage accuracy over full battery discharge cycle and temperature range. | Use Scenario: Generating fixed 36 V feedback threshold in USB PD sink controller reference circuitry. IC Role / Device Role / Timing Role: Stable voltage reference for error amplifier input in isolated DC-DC feedback loop. Use Value: Ensures accurate power contract validation with <0.1 µA leakage at 30.4 V reverse bias. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5272BS-7-F | Zener voltage 36 V, but 350 Ω max ZZT at 0.25 mA - higher dynamic impedance | Lower test current (0.25 mA) reduces regulation stability under load variation | Prefer only where ultra-low standby current dominates over regulation precision |
| BZX84-C36 | SOT-23 package (larger footprint), 36 V ±5%, 100 Ω ZZT at 5 mA - higher power rating (350 mW) | Requires different PCB layout; better suited for higher-current regulation | Select when >200 mW dissipation or manual rework compatibility is required |
Compared with MMBZ5272BS-7-F and BZX84-C36, BZT52C36S-7 offers optimal balance of SOD323 space efficiency, 200 mW power handling, and 90 Ω low-impedance regulation at 2 mA-ideal for compact, thermally constrained automotive and industrial designs.
Availability
BZT52C36S-7 is available at Aetrix Electronics and suitable for automotive sensor reference, industrial analog signal conditioning, and low-power battery monitoring requiring stable component supply and AEC-Q101 compliance.
Supply support for BZT52C36S-7 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, serving automotive, industrial, computing, and consumer markets with high-reliability components.
The BZT52CxxS series belongs to Diodes' AEC-Q101-qualified Zener diode portfolio, engineered specifically for precision voltage regulation and transient suppression in space-constrained, high-stability applications.
FAQ
What is the maximum reverse voltage before breakdown for BZT52C36S-7?
The nominal zener voltage is 36 V with a guaranteed range of 34.0 V to 38.0 V at 2 mA test current. Breakdown occurs within this band; operation below 34.0 V yields negligible reverse current (<0.1 µA at 30.4 V), confirming sharp knee behavior essential for reliable clamping.
Can BZT52C36S-7 be used in place of a 33 V Zener diode?
No-BZT52C36S-7 is specified only for 36 V regulation (34.0–38.0 V range). Substituting it for a 33 V part (e.g., BZT52C33S) would raise the clamping threshold by ~3 V, risking overvoltage stress on downstream circuitry unless system margins explicitly accommodate this shift.
Is the SOD323 package compatible with standard reflow profiles?
Yes-the SOD323 package is qualified for lead-free reflow per JEDEC J-STD-020 Level 1, with peak temperature tolerance up to 260°C. Its matte tin finish and alloy-42 leadframe ensure reliable wetting and joint integrity using standard Pb-free solder paste and profile ramp/soak/reflow cycles.
Does BZT52C36S-7 meet automotive qualification standards?
Yes-it is explicitly qualified to AEC-Q101 Rev D for high-reliability automotive applications, including temperature cycling, humidity testing, and mechanical shock. This certification covers the full SOD323 package variant with "-7" tape-and-reel packaging and applies to both commercial and automotive grade markings.
BZT52C36S-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
BZT52C36S-7 FAQ
1.How can I place an order for BZT52C36S-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C36S-7 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 BZT52C36S-7 reliable?
The price and inventory of BZT52C36S-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C36S-7 is usually 5 days.
3.What payment methods are accepted for BZT52C36S-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C36S-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C36S-7?
BZT52C36S-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C36S-7 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 BZT52C36S-7?
For technical support, including BZT52C36S-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C36S-7 requirements.
6.How does Aetrix verify that BZT52C36S-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C36S-7 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 BZT52C36S-7 meets industry standards.
7.What is the process for return or replacement of BZT52C36S-7?
All BZT52C36S-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C36S-7, 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 BZT52C36S-7 part is unused and in its original packaging.
Return procedure for BZT52C36S-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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