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Diodes Incorporated BZT52C2V7-7
- Part No.:
- BZT52C2V7-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C2V7-7.pdf
- Description:
- DIODE ZENER 2.7V 500MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:2,603
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Product details
Overview
BZT52C2V7-7 from Diodes Incorporated is a surface-mount Zener diode with a nominal zener voltage of 2.7 V, ±0.2 V tolerance (2.5–2.9 V), 500 mW power dissipation at TL = +75°C, 100 Ω maximum zener impedance at 5 mA test current, and −3.5 mV/°C temperature coefficient - used for precision low-voltage reference and overvoltage clamping in power supply feedback paths.
For engineers reviewing the BZT52C2V7-7 datasheet, BZT52C2V7-7 pinout, BZT52C2V7-7 application, or BZT52C2V7-7 equivalent, key selection criteria include zener voltage accuracy at low current (IZT = 5 mA), thermal resistance (RθJA = 338 °C/W on FR-4), SOD123 package compatibility with automated assembly, 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 and temperature conditions. Its planar die construction ensures consistent breakdown characteristics, while the −3.5 mV/°C temperature coefficient enables predictable drift compensation in low-voltage reference circuits.
The device delivers 2.7 V regulation at 5 mA test current with 100 Ω dynamic impedance, supporting stable feedback in DC-DC converters and LDO monitors. It is rated for 370 mW power dissipation at +25°C ambient and derates linearly above +75°C per the published curve (RθJA = 338 °C/W).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.7 V nominal, 2.5–2.9 V range at IZT = 5 mA - defines precise low-voltage clamping threshold |
| Power Dissipation (PD) | 500 mW at TL = +75°C - supports sustained operation in thermally constrained PCB layouts |
| Zener Impedance (ZZT) | ≤100 Ω at f = 1 kHz, IZT = 5 mA - ensures minimal output voltage variation under dynamic load changes |
| Temperature Coefficient | −3.5 mV/°C - enables predictable voltage drift correction in temperature-sensitive references |
| Reverse Current (IR) | ≤20 µA at VR = 1.0 V - guarantees low leakage in high-impedance bias networks |
| Package | SOD123 - 2-pin surface-mount outline compatible with standard pick-and-place and reflow processes |
Pinout & Package
Package: SOD123 - molded plastic case with matte tin-plated alloy 42 leadframe, cathode band marking, UL 94V-0 flammability rating, and moisture sensitivity level 1.
| 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 measured between cathode and anode defines VZ |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| Lead-free & RoHS compliant | Fully compliant with EU Directive 2011/65/EU; no intentionally added lead or halogens |
| Automated assembly optimized | SOD123 footprint and matte tin plating ensure reliable solder wetting and placement yield |
| Low thermal resistance junction-to-lead | RθJL = 150 °C/W - enables higher power handling when mounted on copper pads |
Applications
| USB Power Delivery Monitoring | Automotive Cabin Controller Reference |
|---|---|
Use Scenario: Monitoring 3.3 V rail integrity in USB PD sink controllers during voltage negotiation phases. IC Role / Device Role / Timing Role: Low-voltage Zener reference for comparator input threshold setting. Use Value: Tight 2.5–2.9 V tolerance ensures accurate detection of undervoltage lockout conditions without external trimming. |
Use Scenario: Providing stable 2.7 V reference for microcontroller ADC calibration in HVAC control modules. IC Role / Device Role / Timing Role: Precision voltage reference source for analog front-end biasing. Use Value: −3.5 mV/°C tempco allows predictable offset correction across −40°C to +125°C operating range. |
| Industrial Sensor Signal Conditioning | White Goods Motor Drive Feedback |
Use Scenario: Clamping amplifier input in 4–20 mA loop receivers exposed to ESD transients. IC Role / Device Role / Timing Role: Transient voltage suppressor protecting op-amp inputs. Use Value: 500 mW peak power rating absorbs 1 kV HBM ESD pulses without degradation. |
Use Scenario: Regulating gate drive bias voltage for half-bridge MOSFETs in washing machine motor inverters. IC Role / Device Role / Timing Role: Low-power voltage clamp stabilizing bootstrap capacitor charging. Use Value: SOD123 package withstands vibration and thermal cycling in sealed motor enclosures. |
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 max ZZT = 120 Ω at 20 mA; SOT-23 package | Higher test current shifts regulation point; smaller footprint requires tighter layout control | Select when board space is constrained and 20 mA bias is available |
| BZX84-C2V7 | Zener voltage 2.7 V, but PD = 300 mW at +25°C; SOT-23 package; no AEC-Q101 rating | Lower power rating limits use in thermally dense automotive modules | Select for cost-sensitive commercial applications where AEC-Q101 is not required |
Compared with MMBZ5223BS-7-F and BZX84-C2V7, BZT52C2V7-7 offers superior thermal robustness (500 mW at +75°C), automotive qualification, and tighter low-current impedance - making it preferred for safety-critical or thermally demanding deployments.
Availability
BZT52C2V7-7 is available at Aetrix Electronics and suitable for USB power delivery monitoring, automotive cabin controller reference, and industrial sensor signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for BZT52C2V7-7 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.
The BZT52 series belongs to Diodes' general-purpose Zener diode product line, engineered for precision voltage regulation and transient suppression in compact, automated-assembly-ready packages like SOD123.
FAQ
What is the maximum reverse current for BZT52C2V7-7 at 1.0 V?
The maximum reverse current (IR) is 20 µA at VR = 1.0 V and TA = +25°C. This low leakage ensures minimal loading on high-impedance reference nodes and preserves accuracy in battery-powered sensor interfaces.
Is BZT52C2V7-7 suitable for automotive applications?
Yes - it is qualified to AEC-Q101 standards and offered in automotive-grade variants (e.g., BZT52C2V7Q-7-F). Its SOD123 package, −65°C to +150°C operating range, and tested reliability make it appropriate for engine control, body electronics, and infotainment systems.
How does the temperature coefficient affect regulation stability?
With a temperature coefficient of −3.5 mV/°C, the zener voltage decreases by 3.5 mV per degree Celsius rise. This predictable drift allows designers to compensate in firmware or analog circuitry - especially critical in ADC reference and thermal monitoring applications.
What is the recommended PCB pad layout for SOD123 mounting?
The recommended pad layout specifies X = 0.900 mm, X1 = 4.050 mm, and Y = 0.950 mm (per Diodes Inc. package outline doc). These dimensions ensure proper solder fillet formation, mechanical stability, and thermal relief for the 1.0–1.35 mm body width and 2.55–2.85 mm length.
BZT52C2V7-7 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):
- 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 FAQ
1.How can I place an order for BZT52C2V7-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C2V7-7 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 BZT52C2V7-7 reliable?
The price and inventory of BZT52C2V7-7 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 is usually 5 days.
3.What payment methods are accepted for BZT52C2V7-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C2V7-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C2V7-7?
BZT52C2V7-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C2V7-7 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 BZT52C2V7-7?
For technical support, including BZT52C2V7-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C2V7-7 requirements.
6.How does Aetrix verify that BZT52C2V7-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C2V7-7 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 BZT52C2V7-7 meets industry standards.
7.What is the process for return or replacement of BZT52C2V7-7?
All BZT52C2V7-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C2V7-7, 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 BZT52C2V7-7 part is unused and in its original packaging.
Return procedure for BZT52C2V7-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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