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Diodes Incorporated BZT52C2V7S-7
- Part No.:
- BZT52C2V7S-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
BZT52C2V7S-7.pdf
- Description:
- DIODE ZENER 2.7V 200MW SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:4,715
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Product details
Overview
BZT52C2V7S-7 from Diodes Incorporated is a surface-mount Zener diode with a nominal zener voltage of 2.7 V, 5 mA test current, and 200 mW power dissipation in SOD323 package. It provides precise low-voltage regulation for biasing, reference, and overvoltage protection in space-constrained consumer and industrial PCBs.
For engineers reviewing the BZT52C2V7S-7 datasheet, BZT52C2V7S-7 pinout, BZT52C2V7S-7 application, or BZT52C2V7S-7 equivalent, key selection criteria include zener voltage tolerance (±7.4%), dynamic impedance (100 Ω at 5 mA), reverse leakage (20 µA at 1.0 V), temperature coefficient (−3.5 mV/°C), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across its terminals under varying load or supply conditions. Its planar die construction ensures consistent breakdown characteristics and low leakage, while the SOD323 package supports high-density automated assembly.
The device exhibits a negative temperature coefficient of −3.5 mV/°C, making it suitable for temperature-compensated reference circuits when paired with positive-TC components. Its 100 Ω zener impedance at 5 mA enables predictable regulation performance in low-current analog monitoring paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.7 V nominal, 2.5–2.9 V range at 5 mA - defines regulation setpoint for low-voltage references |
| Power Dissipation (PD) | 200 mW - limits maximum continuous power in ambient air without heatsinking |
| Zener Impedance (ZZT) | 100 Ω at 5 mA - determines output voltage deviation under load current changes |
| Reverse Leakage (IR) | 20 µA at 1.0 V - sets minimum quiescent current in high-impedance sensing nodes |
| Temperature Coefficient | −3.5 mV/°C - enables predictable drift compensation in precision analog circuits |
| Package | SOD323 - 1.3 × 1.7 mm footprint with cathode band marking for automated optical inspection |
Pinout & Package
SOD323 is a two-terminal surface-mount package with cathode identified by a band on the top surface. The anode and cathode leads are formed from alloy 42 leadframe with matte tin plating, rated for solderability per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener reference ground node | Connected to circuit common or lower-potential rail during regulation operation |
| Cathode | Reverse-biased Zener terminal / regulated output node | Provides stable 2.7 V reference relative to anode when reverse biased above breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Planar die construction | Ensures tight VZ tolerance and repeatable ZZT across production lots |
| AEC-Q101 qualification | Validates reliability for automotive infotainment and body electronics applications |
| Halogen- and antimony-free "Green" compound | Meets IEC 61249-2-21 for environmentally compliant PCB assembly |
| Moisture sensitivity Level 1 | Eliminates bake requirements prior to reflow, reducing manufacturing overhead |
Applications
| USB Port Overvoltage Protection | Low-Voltage Microcontroller Reference |
|---|---|
Use Scenario: Clamping transient surges on 3.3 V USB data lines during hot-plug events. IC Role / Device Role / Timing Role: Zener clamping diode placed between D+ and ground to shunt excess voltage above 2.7 V. Use Value: Prevents damage to USB transceivers by limiting peak voltage to within 0.6 V of logic threshold, leveraging 20 µA leakage at 1.0 V for minimal standby loading. | Use Scenario: Providing stable bias voltage for ADC reference inputs in battery-powered IoT sensors. IC Role / Device Role / Timing Role: Low-power Zener reference source connected to microcontroller's internal VREF+ pin. Use Value: Delivers 2.7 V ±0.2 V regulation at 100 µA load with <1 % error contribution to 12-bit ADC measurements. |
| Automotive Cabin Temperature Sensor Bias | Industrial 4–20 mA Loop Power Monitor |
Use Scenario: Supplying excitation voltage to NTC thermistor networks in HVAC control modules. IC Role / Device Role / Timing Role: Precision voltage reference for Wheatstone bridge excitation in AEC-Q101-compliant systems. Use Value: Maintains ±0.5 °C measurement accuracy over −40 to +125 °C due to matched −3.5 mV/°C TC and low thermal resistance (625 °C/W). | Use Scenario: Monitoring loop supply voltage in field transmitter designs where headroom is limited to <3.0 V. IC Role / Device Role / Timing Role: Low-headroom Zener clamp protecting 2.7 V supervisor IC from overvoltage faults. Use Value: Enables reliable brown-out detection at 2.7 V with 100 Ω ZZT ensuring <10 mV droop under 100 µA fault current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5223BS-7-F | Zener voltage 2.7 V, but 350 mW PD, 150 Ω ZZT, SOT-23 package | Larger footprint; higher power handling but less suitable for ultra-dense layouts | Select when higher surge energy absorption is required and board area permits SOT-23 |
| BZX384-C2V7 | Zener voltage 2.7 V, 250 mW PD, 100 Ω ZZT, SOD-323 package, no AEC-Q101 rating | Same footprint but lacks automotive qualification and has higher leakage (50 µA @ 1 V) | Select for cost-sensitive commercial applications where AEC-Q101 is not mandated |
Compared with BZT52C2V7S-7, MMBZ5223BS-7-F offers greater power margin but requires more PCB area, while BZX384-C2V7 matches the package and regulation point but sacrifices automotive reliability and low-leakage performance critical for sensor biasing.
Availability
BZT52C2V7S-7 is available at Aetrix Electronics and suitable for USB interface protection, microcontroller reference generation, and automotive cabin sensor biasing requiring stable component supply across production lifecycles.
Supply support for BZT52C2V7S-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, with design and manufacturing operations across Asia and the Americas.
The BZT52C series belongs to Diodes' standard Zener diode product line, engineered for high-reliability voltage regulation in automotive, industrial, and portable electronics where compact size and AEC-Q101 compliance are essential.
FAQ
What is the maximum reverse voltage before breakdown for BZT52C2V7S-7?
The nominal zener voltage is 2.7 V with a guaranteed range of 2.5 V to 2.9 V at 5 mA test current. Breakdown occurs within this range depending on unit-to-unit variation and operating temperature; no distinct "maximum reverse voltage" exists outside this specification - operation above 2.9 V risks exceeding power limits unless current is strictly limited.
Is BZT52C2V7S-7 suitable for use in high-frequency signal clamping?
No - its typical junction capacitance is ~300 pF at 0 V bias (inferred from Fig. 4 trend for 2.7 V devices), making it unsuitable for RF or fast digital signal clamping. It is optimized for DC and low-frequency (<1 kHz) voltage regulation and overvoltage protection where capacitive loading is not critical.
Does BZT52C2V7S-7 require derating at elevated ambient temperatures?
Yes - power dissipation must be linearly derated above +25°C ambient, following the curve in Fig. 1: at +85°C, maximum allowable power drops to 120 mW. This is enforced by its 625 °C/W junction-to-ambient thermal resistance and applies regardless of PCB copper area unless enhanced layout is used.
How is polarity identified on the BZT52C2V7S-7 SOD323 package?
Polarity is marked by a visible cathode band on the top surface of the SOD323 case. When viewed from above with the band on the left, the left pad is cathode and the right pad is anode - consistent with standard SOD323 orientation and confirmed in the top-view marking diagram on page 2 of DS30093 Rev. 20-2.
BZT52C2V7S-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-76, SOD-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 2.7 V
- Tolerance:
- ±7%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 100 Ohms
- Current - Reverse Leakage @ Vr:
- 20 µA @ 1 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:
- SOD-323
BZT52C2V7S-7 FAQ
1.How can I place an order for BZT52C2V7S-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C2V7S-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 BZT52C2V7S-7 reliable?
The price and inventory of BZT52C2V7S-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C2V7S-7 is usually 5 days.
3.What payment methods are accepted for BZT52C2V7S-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C2V7S-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C2V7S-7?
BZT52C2V7S-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C2V7S-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 BZT52C2V7S-7?
For technical support, including BZT52C2V7S-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C2V7S-7 requirements.
6.How does Aetrix verify that BZT52C2V7S-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C2V7S-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 BZT52C2V7S-7 meets industry standards.
7.What is the process for return or replacement of BZT52C2V7S-7?
All BZT52C2V7S-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C2V7S-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 BZT52C2V7S-7 part is unused and in its original packaging.
Return procedure for BZT52C2V7S-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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