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Diodes Incorporated BZT52C7V5-7
- Part No.:
- BZT52C7V5-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C7V5-7.pdf
- Description:
- DIODE ZENER 7.5V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:2,287
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Product details
Overview
BZT52C7V5-7 from Diodes Incorporated is a surface-mount 7.5 V Zener diode in SOD123 package, rated for 500 mW power dissipation at TL = +75°C and 370 mW at TA = +25°C, with 15 Ω typical Zener impedance at 5 mA test current and ±5% voltage tolerance (7.0–7.9 V). It serves as a precision voltage reference or overvoltage clamp in low-power analog and digital supply rails.
For engineers reviewing the BZT52C7V5-7 datasheet, BZT52C7V5-7 pinout, BZT52C7V5-7 application, or BZT52C7V5-7 equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (RθJA = 338 °C/W), reverse leakage at VR = 5.3 V (≤5 µA), temperature coefficient (+2.5 mV/°C), and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load or input conditions. Its planar die construction ensures consistent breakdown characteristics and low dynamic impedance (ZZT = 15 Ω @ 5 mA, ZZK = 80 Ω @ 1 mA).
The device exhibits a positive temperature coefficient of +2.5 mV/°C near 7.5 V, enabling predictable drift compensation in temperature-sensitive references. It is qualified to AEC-Q101, confirming suitability for automotive electronics where thermal cycling and long-term stability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.5 V nominal, 7.0–7.9 V range @ 5 mA - defines clamping/reference level with ±5% tolerance |
| Power Dissipation | 370 mW @ TA = +25°C - sets maximum continuous DC power on standard FR-4 PCB |
| Zener Impedance | 15 Ω @ IZT = 5 mA - ensures low AC voltage variation during transient load changes |
| Reverse Leakage | ≤5 µA @ VR = 5.3 V - guarantees minimal standby current in high-impedance bias networks |
| Temperature Coefficient | +2.5 mV/°C - enables predictable voltage drift for thermal compensation design |
| Thermal Resistance | RθJA = 338 °C/W - determines junction-to-ambient temperature rise per watt dissipated |
Pinout & Package
Package: SOD123 - surface-mount plastic case with cathode band marking; dimensions: 2.65 mm × 1.55 mm × 1.05 mm (L × D × A); weight ≈ 0.010 g; RoHS-compliant matte tin finish on Alloy 42 leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference node | Connected to lower-potential side in reverse-bias configuration; forms reference ground return path |
| Cathode | Zener breakdown terminal / voltage regulation node | Connected to regulated rail; voltage develops across cathode-to-anode when reverse biased above 7.5 V |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| Planar die construction | Ensures tight parameter distribution and repeatable Zener voltage across production lots |
| 500 mW power rating at TL = +75°C | Supports higher ambient operation when mounted on thermally enhanced pads or heatsinks |
| Lead-free & halogen-free "Green" packaging | Complies with EU RoHS 2 and meets stringent environmental requirements for industrial and consumer products |
Applications
| Power Supply Voltage Reference | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Stabilizing feedback voltage in low-current linear regulators or op-amp reference circuits. IC Role / Device Role / Timing Role: Zener diode provides fixed 7.5 V reference point for error amplifier input. Use Value: Maintains output regulation within ±1% over temperature due to low RθJA and predictable TC. |
Use Scenario: Protecting microcontroller I/O pins from ESD-induced transients on 5 V or 3.3 V buses. IC Role / Device Role / Timing Role: Clamps voltage spikes above 7.5 V to prevent latch-up or gate oxide damage. Use Value: Limits peak voltage to safe levels with <5 µA leakage at 5.3 V, minimizing standby power impact. |
| Automotive Sensor Biasing | Industrial Signal Conditioning |
Use Scenario: Providing stable excitation voltage for resistive temperature sensors (RTDs) in engine coolant modules. IC Role / Device Role / Timing Role: Supplies precise 7.5 V bias to sensor bridge, enabling accurate ratiometric measurement. Use Value: AEC-Q101 qualification ensures operation across –40°C to +125°C ambient without parameter shift. |
Use Scenario: Setting threshold voltage for comparator-based fault detection in PLC analog input modules. IC Role / Device Role / Timing Role: Defines trip point for overvoltage alarms in 24 V industrial control systems. Use Value: Tight 7.0–7.9 V tolerance and 15 Ω Zener impedance ensure repeatable triggering across production units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5227BS-7-F | Same 7.5 V nominal, but SOT-323 package (smaller footprint, higher RθJA = 400 °C/W) | Suitable for space-constrained PCBs; less thermal margin in high-power density layouts | Select when board area is critical and power dissipation remains below 200 mW |
| BZX84-C7V5-7 | 7.5 V Zener, SOT-23 package, 350 mW rating, RθJA = 375 °C/W, no AEC-Q101 qualification | Lower cost for commercial-grade applications; not validated for automotive temperature cycling | Prefer for non-automotive consumer or industrial designs where qualification is not required |
Compared with MMBZ5227BS-7-F and BZX84-C7V5-7, BZT52C7V5-7 offers superior thermal performance (RθJA = 338 °C/W) and automotive qualification, making it optimal for under-hood electronics and safety-critical biasing where long-term stability and thermal robustness are mandatory.
Availability
BZT52C7V5-7 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, and consumer power management systems requiring stable component supply with full traceability and lifecycle continuity.
Supply support for BZT52C7V5-7 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, specializing in high-reliability components for automotive, industrial, and computing markets.
BZT52C7V5-7 belongs to the BZT52C series of general-purpose Zener diodes designed for medium-current voltage regulation and clamping in cost-sensitive, high-volume applications with stringent environmental compliance requirements.
FAQ
What is the maximum reverse voltage (VR) at which leakage current is specified for BZT52C7V5-7?
The datasheet specifies IR ≤ 5 µA at VR = 5.3 V, which is 70% of the nominal Zener voltage (7.5 V). This test condition ensures reliable blocking behavior well below breakdown, supporting use in precision bias networks where leakage must remain negligible.
Can BZT52C7V5-7 be used in parallel for higher power handling?
No - Zener diodes exhibit negative temperature coefficients at low voltages and positive ones above ~5.6 V, but manufacturing tolerances cause unequal current sharing. Parallel connection risks thermal runaway; derating or external ballast resistors are required if higher power is needed.
Is the SOD123 package compatible with standard reflow profiles for lead-free soldering?
Yes - the device is qualified for lead-free assembly per J-STD-020, with moisture sensitivity level 1. It withstands peak reflow temperatures up to 260°C and supports standard Pb-free profiles without delamination or parametric shift.
Does BZT52C7V5-7 have a defined capacitance value relevant for high-frequency applications?
No specific capacitance is listed in the datasheet for BZT52C7V5-7. Figure 5 shows typical total capacitance for the series is ~15 pF at 1 MHz and VR = 1 V for 7 V-class devices, but this is not guaranteed or characterized per part number - design margins should account for ±30% variation.
BZT52C7V5-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Voltage - Zener (Nom) (Vz):
- 7.5 V
- Tolerance:
- ±6%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5 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
BZT52C7V5-7 FAQ
1.How can I place an order for BZT52C7V5-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C7V5-7 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 BZT52C7V5-7 reliable?
The price and inventory of BZT52C7V5-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C7V5-7 is usually 5 days.
3.What payment methods are accepted for BZT52C7V5-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C7V5-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C7V5-7?
BZT52C7V5-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C7V5-7 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 BZT52C7V5-7?
For technical support, including BZT52C7V5-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C7V5-7 requirements.
6.How does Aetrix verify that BZT52C7V5-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C7V5-7 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 BZT52C7V5-7 meets industry standards.
7.What is the process for return or replacement of BZT52C7V5-7?
All BZT52C7V5-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C7V5-7, 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 BZT52C7V5-7 part is unused and in its original packaging.
Return procedure for BZT52C7V5-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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