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Diodes Incorporated BZT52C2V7-7-F
- Part No.:
- BZT52C2V7-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C2V7-7-F.pdf
- Description:
- DIODE ZENER 2.7V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:14,965
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Product details
Overview
BZT52C2V7-7-F from Diodes Incorporated is a surface-mount 2.7 V Zener diode in SOD123 package, rated for 500 mW power dissipation at TL = +75°C and 370 mW at TA = +25°C, with ±5% zener voltage tolerance (2.5–2.9 V), 100 Ω max zener impedance at 5 mA, and 20 µA max reverse current at 1.0 V. It serves as a precision voltage reference or overvoltage clamp in low-power analog signal conditioning circuits.
For engineers reviewing the BZT52C2V7-7-F datasheet, BZT52C2V7-7-F pinout, BZT52C2V7-7-F application, or BZT52C2V7-7-F equivalent, key selection criteria include its 2.7 V nominal breakdown voltage, SOD123 thermal resistance (RθJA = 338 °C/W), AEC-Q101 qualification, RoHS/Green compliance, and cathode-band polarity marking for automated placement.
Technical Context
This Zener diode operates in reverse-biased breakdown mode to regulate or clamp voltage at 2.7 V with a temperature coefficient of –3.5 mV/°C, enabling stable reference performance across –65°C to +150°C operating range. Its planar die construction ensures consistent parametric distribution and compatibility with reflow soldering.
The device exhibits 100 Ω dynamic impedance at 5 mA test current and 600 Ω at knee current (1.0 mA), supporting both regulation and transient suppression roles. Its 0.010 g mass and SOD123 footprint (2.65 mm × 1.55 mm × 1.05 mm) optimize board space in compact consumer and industrial PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nominal) | 2.7 V - precise clamping threshold for 3.3 V rail protection or bias generation |
| Zener Voltage Range | 2.5–2.9 V - ±5% tolerance ensures predictable regulation under production variance |
| Power Dissipation (TA = 25°C) | 370 mW - limits continuous current to ~137 mA at 2.7 V without heatsinking |
| Zener Impedance (IZT = 5 mA) | 100 Ω max - defines voltage deviation under load changes in feedback networks |
| Reverse Current (VR = 1.0 V) | 20 µA max - ensures minimal leakage in high-impedance sensing or standby circuits |
| Thermal Resistance (Junction-to-Ambient) | 338 °C/W - requires derating above 25°C ambient; full power only at TL ≤ 75°C |
| Operating Temperature Range | –65°C to +150°C - supports automotive under-hood and industrial control environments |
Pinout & Package
Package: SOD123 - surface-mount plastic case (2.65 mm × 1.55 mm × 1.05 mm), matte tin-plated alloy 42 leadframe, cathode band marking, UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side in clamp configuration; ties to ground or signal return |
| Cathode | Reverse breakdown terminal / Zener voltage output node | Connected to regulated node; voltage develops relative to anode during breakdown |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements (HTOL, TCT, ESD) |
| RoHS & Halogen-free | Fully compliant with EU Directive 2011/65/EU; <900 ppm Br/Cl, <1000 ppm Sb |
| Planar die construction | Enables tight parameter distribution and high yield in automated SMT assembly |
| Moisture Sensitivity Level 1 | No dry-pack or baking required before reflow; compatible with standard J-STD-020 handling |
| Low thermal resistance (Junction-to-Lead) | RθJL = 150 °C/W - improves power handling when mounted on copper pads |
Applications
| USB Port Overvoltage Protection | Microcontroller Reset Circuit |
|---|---|
|
Use Scenario: Clamps transient surges on USB VBUS line to prevent damage to downstream USB PHY ICs. IC Role / Device Role / Timing Role: Zener clamp placed between VBUS and GND, conducting above 2.7 V to shunt excess energy. Use Value: Limits peak voltage to ≤2.9 V, well below 3.3 V PHY absolute maximum rating, while drawing <20 µA at normal operation. |
Use Scenario: Generates clean reset signal for 3.3 V microcontrollers during power-up and brownout events. IC Role / Device Role / Timing Role: Forms part of RC-reset network where Zener stabilizes threshold voltage applied to reset pin. Use Value: Provides 2.7 V reference with ±5% tolerance and –3.5 mV/°C drift, ensuring reliable reset assertion across temperature. |
| Low-Power Sensor Biasing | Industrial Signal Conditioning |
|
Use Scenario: Supplies stable bias voltage to analog sensor front-ends (e.g., thermistor bridges or op-amp references). IC Role / Device Role / Timing Role: Acts as shunt reference in low-current (<1 mA) bias network, replacing higher-cost precision references. Use Value: Delivers 2.7 V with 100 Ω impedance at 5 mA, enabling <1 mV load regulation error in 100 µA applications. |
Use Scenario: Protects ADC input stages from ESD and overvoltage in 4–20 mA loop receivers. IC Role / Device Role / Timing Role: Placed in parallel with input filter capacitor to clamp fast transients before they reach sensitive converter inputs. Use Value: Responds within nanoseconds due to low junction capacitance (~100 pF at VR = 1 V), limiting overshoot to safe levels. |
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 | Same 2.7 V nominal, but SOT-23 package (higher RθJA = 350 °C/W); 100 mW max PD at TA = 25°C | Limited to lower-power signal-level clamping; unsuitable for >50 mA continuous use | Select when board space is constrained and thermal budget allows lower power handling |
| BZX84-C2V7 | SOT-23 package; 2.7 V nominal, ±5%, but 350 mW max PD at TA = 25°C and higher ZZT (120 Ω) | Higher impedance reduces regulation accuracy in feedback paths; lower power rating restricts current capability | Prefer for cost-sensitive non-automotive designs where AEC-Q101 is not required |
Compared with MMBZ5223BS-7-F and BZX84-C2V7, BZT52C2V7-7-F delivers higher power handling (370 mW), lower thermal resistance, and automotive qualification-making it optimal for robust, medium-current voltage reference and protection in harsh environments.
Availability
BZT52C2V7-7-F is available at Aetrix Electronics and suitable for USB interface protection, microcontroller reset circuits, low-power sensor biasing, and industrial signal conditioning requiring stable component supply and long-term manufacturability.
Supply support for BZT52C2V7-7-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, specializing in high-reliability components for automotive, industrial, and consumer markets.
The BZT52 series belongs to Diodes' general-purpose Zener diode product line, engineered for cost-effective, high-yield voltage regulation and transient suppression in automated SMT assembly environments.
FAQ
What is the maximum continuous reverse current the BZT52C2V7-7-F can handle at 2.7 V?
The device is not rated for continuous conduction at its zener voltage; instead, it is specified for regulated operation at IZT = 5 mA. At that current, power dissipation is 13.5 mW. Continuous operation must stay within the 370 mW (TA = 25°C) or 500 mW (TL = 75°C) limits, meaning max average current is ~137 mA at 2.7 V with adequate thermal management.
Does the BZT52C2V7-7-F have a defined forward voltage specification?
Yes - the datasheet specifies VF = 0.9 V at IF = 10 mA. This forward characteristic is relevant for ESD protection configurations where the diode may conduct in forward bias during negative transients, and confirms low-conduction loss in bidirectional clamp implementations.
How does the –3.5 mV/°C temperature coefficient affect circuit stability?
The negative temperature coefficient means the zener voltage decreases by 3.5 mV per degree Celsius rise. Over a –40°C to +125°C range, this causes a total shift of ~578 mV - critical in precision references. Designers must either limit operating temperature swing or compensate using complementary components like NTC thermistors or matched diode pairs.
Is the SOD123 package compatible with standard reflow profiles for lead-free soldering?
Yes - the device is qualified for Pb-free reflow per JEDEC J-STD-020. Its matte tin finish and alloy 42 leadframe ensure reliable wetting and intermetallic formation. The moisture sensitivity level is Grade 1, so no pre-bake is required prior to reflow, simplifying manufacturing flow.
BZT52C2V7-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2.7 V
- Tolerance:
- ±7%
- Power - Max:
- 500 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-123
BZT52C2V7-7-F FAQ
1.How can I place an order for BZT52C2V7-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C2V7-7-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 BZT52C2V7-7-F reliable?
The price and inventory of BZT52C2V7-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C2V7-7-F is usually 5 days.
3.What payment methods are accepted for BZT52C2V7-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C2V7-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C2V7-7-F?
BZT52C2V7-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C2V7-7-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 BZT52C2V7-7-F?
For technical support, including BZT52C2V7-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C2V7-7-F requirements.
6.How does Aetrix verify that BZT52C2V7-7-F is sourced from the original manufacturer or authorized distributors?
All BZT52C2V7-7-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 BZT52C2V7-7-F meets industry standards.
7.What is the process for return or replacement of BZT52C2V7-7-F?
All BZT52C2V7-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C2V7-7-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 BZT52C2V7-7-F part is unused and in its original packaging.
Return procedure for BZT52C2V7-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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