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Diodes Incorporated BZT52C2V7TQ-7-F
- Part No.:
- BZT52C2V7TQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
BZT52C2V7TQ-7-F.pdf
- Description:
- DIODE ZENER 2.7V 300MW SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:6,889
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Product details
Overview
BZT52C2V7TQ-7-F from Diodes Incorporated is a surface-mount Zener diode with nominal 2.7 V zener voltage (±0.2 V tolerance), 300 mW power dissipation, and SOD523 package. It regulates low-voltage reference rails in automotive body control modules, portable battery monitors, and USB-powered sensor interfaces where stable clamping at 2.7 V is required under reverse bias.
For engineers reviewing the BZT52C2V7TQ-7-F datasheet, BZT52C2V7TQ-7-F pinout, BZT52C2V7TQ-7-F application, or BZT52C2V7TQ-7-F equivalent, this part delivers precise 2.7 V regulation with <20 µA reverse leakage at 1.0 V, -3.5 mV/°C temperature coefficient, and 100 Ω dynamic impedance at 5 mA test current - critical for low-power voltage reference and overvoltage protection design.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable 2.7 V reference across its cathode–anode terminals. Its flat-lead SOD523 package enables high thermal efficiency with RθJA = 417 °C/W on FR-4 PCBs and supports automotive-grade reliability per AEC-Q200 when ordered with Q-suffix variants.
It exhibits a negative temperature coefficient of -3.5 mV/°C, meaning output voltage decreases linearly with rising junction temperature. Reverse leakage remains ≤20 µA at 1.0 V, and forward voltage is 0.9 V at 10 mA - enabling bidirectional protection and low-drop clamp functionality in compact DC bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.7 V nominal, 2.5–2.9 V range at 5 mA - ensures tight voltage reference for 3.3 V rail monitoring and LDO feedback paths. |
| Power Dissipation (PD) | 300 mW - supports continuous clamping in low-current protection circuits without heatsinking on standard 2 oz copper. |
| Zener Impedance (ZZT) | 100 Ω at 5 mA - limits regulation error under varying load currents in precision analog sensing nodes. |
| Reverse Leakage (IR) | ≤20 µA at VR = 1.0 V - minimizes quiescent current drain in always-on battery-backed systems. |
| Temperature Coefficient | -3.5 mV/°C - enables predictable drift compensation in temperature-sensitive voltage references. |
| Package | SOD523 - 1.25 mm × 0.85 mm footprint with 0.17 mm max height, suitable for space-constrained PCB layouts. |
Pinout & Package
Package: SOD523 - ultra-compact surface-mount plastic package with cathode band marking; dimensions: D = 0.75–0.85 mm, E = 1.15–1.25 mm, He = 1.55–1.65 mm, weight ≈ 0.001 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference ground | Connected to system ground or lower-potential node; establishes reference point for reverse-bias operation. |
| Cathode | Zener breakdown terminal / regulated output node | Connected to protected line or reference input; maintains 2.7 V relative to anode during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SOD523 package | Enables placement in <1.0 mm board height constraints while maintaining 300 mW dissipation capability. |
| Totally lead-free & RoHS 3 compliant | Meets EU Directive 2015/863/EU with <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - qualified for automotive and medical end equipment. |
| JEDEC-qualified high-reliability construction | Validated per AEC-Q200 stress tests including temperature cycling, humidity bias, and high-temperature operating life. |
| Cathode band polarity marking | Visible top-side marking ('W1') ensures unambiguous orientation during automated optical inspection and pick-and-place assembly. |
Applications
| Automotive Body Control Unit (BCU) | USB-C Power Delivery Monitor |
|---|---|
Use Scenario: Regulating 2.7 V reference for microcontroller ADC inputs monitoring 12 V battery voltage via resistive divider. IC Role / Device Role / Timing Role: Precision voltage reference and overvoltage clamp protecting MCU analog front-end. Use Value: Maintains ±0.2 V regulation accuracy across -40°C to +125°C ambient, preventing ADC saturation during cold-crank transients. |
Use Scenario: Clamping CC line voltage during USB-C negotiation to prevent >3.0 V damage to Type-C controller IC. IC Role / Device Role / Timing Role: Fast-response reverse-bias shunt regulator on CC signal path. Use Value: Limits CC line to 2.7 V with <20 µA leakage at 1.0 V, ensuring no false detection during low-power suspend states. |
| Portable Gas Sensor Interface | Industrial 4–20 mA Loop Receiver |
Use Scenario: Providing stable 2.7 V bias to electrochemical gas sensor heater elements powered from coin-cell batteries. IC Role / Device Role / Timing Role: Low-quiescent-current voltage reference and thermal drift-compensated bias source. Use Value: -3.5 mV/°C TC matches typical sensor heater resistance drift, reducing calibration burden in handheld analyzers. |
Use Scenario: Protecting op-amp input stage of loop receiver against transient surges on 24 V supply lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on op-amp non-inverting input node. Use Value: 100 Ω ZZT ensures <0.5 V deviation at 5 mA surge, preserving 16-bit ADC linearity during field wiring faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ4678T1G | Zener voltage 2.7 V (same), but SOD-123 package (2.7 × 1.6 mm) and higher PD = 500 mW; ZZT = 120 Ω at 20 mA. | Requires larger PCB area; better suited for higher-power transient suppression, not ultra-compact designs. | Select when higher surge energy handling is needed and board space permits SOD-123. |
| BZX584C2V7 | Zener voltage 2.7 V, SOT-23 package (3.0 × 1.4 mm); PD = 350 mW; IR = 50 µA at 1.0 V - double the leakage of BZT52C2V7TQ-7-F. | Higher leakage reduces battery life in always-on sensors; larger footprint than SOD523. | Select only if existing SOT-23 footprint reuse is mandatory and leakage budget allows ≥50 µA. |
Compared with MMSZ4678T1G and BZX584C2V7, BZT52C2V7TQ-7-F offers the smallest footprint (SOD523), lowest leakage (≤20 µA), and best fit for space- and power-constrained automotive and portable electronics - without sacrificing regulation accuracy or thermal stability.
Availability
BZT52C2V7TQ-7-F is available at Aetrix Electronics and suitable for automotive body control units, USB-C power delivery monitors, and portable gas sensor interfaces requiring stable component supply with full traceability and AEC-Q200-aligned manufacturing.
Supply support for BZT52C2V7TQ-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 ISO/TS 16949-certified wafer fabs and assembly facilities worldwide.
This device belongs to the BZT52C series of automotive-qualified Zener diodes, designed specifically for voltage regulation and overvoltage protection in harsh-environment applications such as engine control, lighting, and infotainment systems.
FAQ
What is the maximum reverse voltage rating before breakdown for BZT52C2V7TQ-7-F?
The BZT52C2V7TQ-7-F has a nominal zener voltage of 2.7 V at 5 mA test current, with a guaranteed breakdown range of 2.5 V to 2.9 V. It does not specify a separate "maximum reverse voltage" rating - operation above 2.9 V in reverse bias initiates controlled breakdown and must be current-limited to avoid exceeding 300 mW dissipation.
Is BZT52C2V7TQ-7-F qualified for automotive use?
Yes - the "Q" suffix denotes qualification to AEC-Q200 for passive components. This part is manufactured in IATF 16949-certified facilities, supports PPAP documentation, and meets automotive change control requirements. Full qualification data is available in Diodes' Automotive Products portal.
How does the -3.5 mV/°C temperature coefficient affect circuit performance?
The negative temperature coefficient means the zener voltage decreases by 3.5 mV per degree Celsius rise in junction temperature. In precision references, this drift must be compensated - for example, by pairing with a positive-TC component or using it in applications where predictable downward drift improves system margin, such as overvoltage clamps in warm environments.
Can BZT52C2V7TQ-7-F be used in forward-bias applications?
Yes - its forward voltage is specified as 0.9 V at 10 mA, making it usable as a low-drop rectifier or ESD protection diode in bidirectional signal lines. However, its primary design intent and characterization are for reverse-bias zener regulation; forward conduction is secondary and not optimized for high-current switching.
BZT52C2V7TQ-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-79, SOD-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 2.7 V
- Tolerance:
- ±7.41%
- Power - Max:
- 300 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 (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
BZT52C2V7TQ-7-F FAQ
1.How can I place an order for BZT52C2V7TQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C2V7TQ-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 BZT52C2V7TQ-7-F reliable?
The price and inventory of BZT52C2V7TQ-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 BZT52C2V7TQ-7-F is usually 5 days.
3.What payment methods are accepted for BZT52C2V7TQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C2V7TQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C2V7TQ-7-F?
BZT52C2V7TQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C2V7TQ-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 BZT52C2V7TQ-7-F?
For technical support, including BZT52C2V7TQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C2V7TQ-7-F requirements.
6.How does Aetrix verify that BZT52C2V7TQ-7-F is sourced from the original manufacturer or authorized distributors?
All BZT52C2V7TQ-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 BZT52C2V7TQ-7-F meets industry standards.
7.What is the process for return or replacement of BZT52C2V7TQ-7-F?
All BZT52C2V7TQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C2V7TQ-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 BZT52C2V7TQ-7-F part is unused and in its original packaging.
Return procedure for BZT52C2V7TQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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