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Diodes Incorporated BZT52C2V7Q-7-F
- Part No.:
- BZT52C2V7Q-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C2V7Q-7-F.pdf
- Description:
- DIODE ZENER 2.7V 370MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:2,709
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Product details
Overview
BZT52C2V7Q-7-F from Diodes Incorporated is an automotive-grade 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, and 370 mW at TA = +25°C, used for precision voltage regulation and overvoltage protection in low-voltage power rails of automotive control modules.
For engineers reviewing the BZT52C2V7Q-7-F datasheet, BZT52C2V7Q-7-F pinout, BZT52C2V7Q-7-F application, or BZT52C2V7Q-7-F equivalent, key selection criteria include its AEC-Q101 qualification, SOD123 package thermal performance (RθJA = 338°C/W), 1.0 mA test current, and −3.5 mV/°C temperature coefficient - critical for stable biasing in engine control units and sensor interface circuits.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain a stable reference voltage under varying load and temperature conditions. Its planar die construction ensures consistent breakdown characteristics, while the SOD123 package supports automated assembly and delivers reliable thermal transfer via a 150°C/W junction-to-lead resistance.
The device exhibits a maximum zener impedance of 100 Ω at 5 mA and 600 Ω at 1.0 mA, with a maximum reverse current of 20 µA at VR = 1.0 V. Its negative temperature coefficient (−3.5 mV/°C) enables predictable drift compensation in analog front-end designs.
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 clamping level for 3.3 V rail protection |
| Power Dissipation | 370 mW at TA = +25°C - sets maximum continuous power in ambient PCB environments |
| Zener Impedance (ZZT) | 100 Ω at IZT = 5 mA - indicates low dynamic resistance for stable regulation under small-signal variation |
| Reverse Current (IR) | 20 µA max at VR = 1.0 V - confirms low leakage for battery-backed circuits and low-power sleep modes |
| Temperature Coefficient | −3.5 mV/°C - quantifies predictable downward voltage drift with rising temperature for thermal design margining |
| Package | SOD123 - surface-mount outline with 0.57 mm lead width and 2.65 mm body width, optimized for high-density automotive PCBs |
Pinout & Package
Two-terminal device in SOD123 package: cathode marked by band; anode and cathode terminals define unidirectional reverse-bias operation. No internal connections beyond the two leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for reverse-bias connection | Connected to lower-potential side (e.g., GND or regulated rail return) during Zener operation |
| Cathode | Input node for reverse-bias connection | Connected to higher-potential side (e.g., supply rail or signal line) to enable controlled breakdown |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Lead-free & Halogen-free | Meets RoHS 2 (2011/65/EU) and Diodes Inc.'s "Green" standard (<900 ppm Br/Cl, <1000 ppm Sb) |
| Moisture Sensitivity Level 1 | Zero bake requirement before reflow - compatible with standard SMT assembly without preconditioning |
| Matte tin-plated Alloy 42 leadframe | Ensures solderability per MIL-STD-202, Method 208 and long-term intermetallic stability |
Applications
| Automotive Engine Control Unit (ECU) Bias Reference | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Provides stable 2.7 V reference for op-amp biasing in knock sensor amplifiers within engine control modules. IC Role / Device Role / Timing Role: Zener voltage reference diode establishing fixed DC offset for analog front-end circuitry. Use Value: Maintains ≤±2% output stability across −40°C to +125°C ambient, enabling accurate sensor signal interpretation despite thermal cycling. |
Use Scenario: Clamps transient overvoltage on 3.3 V I²C bus lines in factory automation PLC input modules. IC Role / Device Role / Timing Role: Low-voltage transient suppressor protecting I/O pins of microcontrollers and level translators. Use Value: Limits voltage excursions to ≤2.9 V during ESD events (IEC 61000-4-2 Level 3), preventing latch-up in downstream logic. |
| Automotive Body Control Module (BCM) Power Sequencing | Medical Diagnostic Equipment Power Monitoring |
Use Scenario: Regulates auxiliary 2.7 V supply for CAN transceiver biasing during cold-crank conditions (6–9 V battery). IC Role / Device Role / Timing Role: Precision shunt regulator stabilizing low-current bias rail independent of main LDO output. Use Value: Delivers 5 mA regulation capability with <100 mV line regulation error across 6–16 V input range, ensuring CAN PHY reliability. |
Use Scenario: Supplies reference voltage for ADC input scaling in portable ultrasound probe power management ICs. IC Role / Device Role / Timing Role: Low-drift voltage reference source for 12-bit analog-to-digital conversion accuracy. Use Value: Achieves <0.5% total error over temperature due to matched −3.5 mV/°C TC and tight 2.5–2.9 V tolerance band. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5223BQ-7-F | Zener voltage 2.7 V, same SOD123 package, but rated only to 350 mW at TA = +25°C and not AEC-Q101 qualified | Limited to commercial-grade industrial controls; unsuitable for under-hood automotive use | Select when cost sensitivity outweighs automotive qualification requirements and power demand stays below 250 mW |
| BZX384-C2V7,115 | 2.7 V Zener in smaller SOD323 package (1.7 × 1.25 mm), 300 mW rating, AEC-Q101 qualified, but higher ZZT (120 Ω) | Better fit for space-constrained PCBs; higher impedance reduces regulation precision at low currents | Prefer for compact designs where board area is critical and 120 Ω impedance is acceptable for target load stability |
Compared with MMSZ5223BQ-7-F and BZX384-C2V7,115, BZT52C2V7Q-7-F uniquely balances AEC-Q101 compliance, 370 mW ambient power handling, and 100 Ω low-current impedance - making it optimal for thermally demanding automotive voltage references requiring both reliability and regulation fidelity.
Availability
BZT52C2V7Q-7-F is available at Aetrix Electronics and suitable for automotive engine control units, industrial sensor interfaces, body control modules, and medical diagnostic equipment requiring stable component supply with full traceability and lifecycle continuity.
Supply support for BZT52C2V7Q-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 computing markets.
The BZT52C series belongs to Diodes' automotive-qualified Zener diode product line, engineered specifically for stable voltage reference and overvoltage protection in harsh-environment electronic control units.
FAQ
What is the maximum reverse current for BZT52C2V7Q-7-F at 1.0 V?
The maximum reverse current is 20 µA at VR = 1.0 V and TA = +25°C, as specified in the Electrical Characteristics table. This low leakage supports energy-efficient operation in always-on sensor bias circuits and extends battery life in automotive standby systems.
Is BZT52C2V7Q-7-F suitable for reflow soldering per J-STD-020?
Yes - it is rated Moisture Sensitivity Level 1 per J-STD-020, meaning it can be subjected to standard lead-free reflow profiles (peak 260°C) without baking. The matte tin finish on the Alloy 42 leadframe ensures robust solderability per MIL-STD-202, Method 208.
How does the −3.5 mV/°C temperature coefficient affect circuit design?
This negative coefficient means the zener voltage decreases by 3.5 mV per degree Celsius rise in junction temperature. Designers must account for this drift when setting tolerance margins - e.g., a 100°C rise causes ~350 mV drop, requiring derating or compensation in precision reference applications.
Can BZT52C2V7Q-7-F replace BZT52C2V4Q-7-F in a 2.4 V reference circuit?
No - the 2.7 V nominal voltage exceeds the 2.4 V design point by 12.5%, exceeding typical tolerance budgets. Substitution would shift bias points, alter amplifier gain, and risk violating downstream IC input voltage limits; only identical voltage grades should be interchanged.
BZT52C2V7Q-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:
- ±7.41%
- Power - Max:
- 370 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-123
BZT52C2V7Q-7-F FAQ
1.How can I place an order for BZT52C2V7Q-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C2V7Q-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 BZT52C2V7Q-7-F reliable?
The price and inventory of BZT52C2V7Q-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 BZT52C2V7Q-7-F is usually 5 days.
3.What payment methods are accepted for BZT52C2V7Q-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C2V7Q-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C2V7Q-7-F?
BZT52C2V7Q-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C2V7Q-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 BZT52C2V7Q-7-F?
For technical support, including BZT52C2V7Q-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C2V7Q-7-F requirements.
6.How does Aetrix verify that BZT52C2V7Q-7-F is sourced from the original manufacturer or authorized distributors?
All BZT52C2V7Q-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 BZT52C2V7Q-7-F meets industry standards.
7.What is the process for return or replacement of BZT52C2V7Q-7-F?
All BZT52C2V7Q-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C2V7Q-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 BZT52C2V7Q-7-F part is unused and in its original packaging.
Return procedure for BZT52C2V7Q-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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