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Diodes Incorporated BZT52C5V1LP-7
- Part No.:
- BZT52C5V1LP-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
BZT52C5V1LP-7.pdf
- Description:
- DIODE ZENER 5.1V 250MW 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,152
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Product details
Overview
BZT52C5V1LP-7 from Diodes Incorporated is a surface-mount Zener diode with nominal zener voltage 5.1 V, 5 mA test current, 60 Ω maximum zener impedance at IZT, and 2.0 µA maximum reverse leakage at 2.0 V. It is housed in a DFN1006-2 package, rated for 250 mW power dissipation, and qualified to AEC-Q101 for automotive-grade reliability.
For engineers reviewing the BZT52C5V1LP-7 datasheet, BZT52C5V1LP-7 pinout, BZT52C5V1LP-7 application, or BZT52C5V1LP-7 equivalent, key selection criteria include zener voltage tolerance (±6%), temperature coefficient (−2.7 mV/°C), cathode-marked polarity, and thermal resistance (500 °C/W) in minimal-pad FR-4 layouts.
Technical Context
This device operates as a precision voltage reference and overvoltage clamp in low-power analog and digital circuits. Its −2.7 mV/°C temperature coefficient enables stable regulation near room temperature, while its 60 Ω dynamic impedance at 5 mA ensures predictable voltage deviation under load variation.
The DFN1006-2 package supports high-density PCB layouts and automated reflow assembly. With 0.001 g mass and Level 1 moisture sensitivity, it requires no bake preconditioning and achieves reliable solder joints using NiPdAu-plated terminals per MIL-STD-202 Method 208.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.1 V nominal, 4.8–5.4 V range at 5 mA - defines clamping threshold in protection circuits |
| Power Dissipation (PD) | 250 mW at TA = 25°C - limits continuous current to ~49 mA at 5.1 V |
| Zener Impedance (ZZT) | 60 Ω max at IZT = 5 mA - determines output voltage shift under ±1 mA load change |
| Reverse Leakage (IR) | 2.0 µA max at VR = 2.0 V - ensures minimal quiescent current in standby bias networks |
| Temp Coefficient (αVZ) | −2.7 mV/°C - indicates voltage drift direction and magnitude across −65°C to +150°C |
| Package | DFN1006-2 (1.0 × 0.6 × 0.5 mm) - enables 0201 footprint compatibility with exposed cathode pad |
Pinout & Package
DFN1006-2 is a two-terminal leadless package with cathode indicated by a dot on the top surface. Terminals are co-planar, unmarked anode and marked cathode; no internal die bonding wire connects to substrate.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference node for reverse-bias operation | Connected to lower-potential rail (e.g., GND) when used as shunt regulator |
| Cathode | Zener breakdown terminal | Marked with dot; connected to higher-potential rail (e.g., VIN) to clamp excess voltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including infotainment power rails and sensor biasing |
| Lead-free & RoHS-compliant | No intentionally added lead; UL 94V-0 molding compound meets environmental compliance mandates |
| Level 1 moisture sensitivity | Eliminates pre-reflow baking; supports standard SMT line throughput without process modification |
| NiPdAu terminal finish | Ensures robust solder wetting and intermetallic formation on OSP- or ENIG-finished PCBs |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Clamping transient spikes on LIN bus lines during load dump events. IC Role / Device Role / Timing Role: Shunt voltage limiter protecting transceiver input pins. Use Value: Prevents damage to 5 V-tolerant LIN PHY ICs by clamping above 5.4 V with <2 µA leakage below 2 V. |
Use Scenario: Providing stable 5.1 V reference for 12-bit ADC bias in RTD measurement circuits. IC Role / Device Role / Timing Role: Precision voltage reference source with low tempco and minimal self-heating. Use Value: Enables <±0.5% full-scale accuracy over 0–70°C due to −2.7 mV/°C drift and 60 Ω ZZT. |
| Consumer USB-C Power Negotiation | Medical Wearable Battery Monitoring |
Use Scenario: Overvoltage protection on CC line during PD contract negotiation. IC Role / Device Role / Timing Role: Fast-response clamp limiting CC voltage to safe levels during fault conditions. Use Value: Responds within nanoseconds to 12 V transients while drawing only 2 µA at idle-preserving low-power sleep mode. |
Use Scenario: Regulating reference voltage for fuel gauge IC in lithium coin-cell-powered devices. IC Role / Device Role / Timing Role: Low-quiescent-current shunt regulator powering ADC reference input. Use Value: Draws just 2 µA at 2 V reverse bias, extending 3 V CR2032 battery life beyond 5 years in always-on monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5221BLT1G | Zener voltage 3.0 V, 200 mW rating, SOT-23 package | Higher thermal resistance (~600 °C/W); unsuitable for high-density layouts | Select only if 3.0 V reference is required and board space permits larger footprint |
| BZX384-B5V1 | 5.1 V, ±5% tolerance, 300 mW, SOD-323 package | Higher leakage (5 µA @ 2 V); not AEC-Q101 qualified | Acceptable for commercial-grade consumer products but not automotive or industrial safety-critical use |
Compared with MMBZ5221BLT1G and BZX384-B5V1, BZT52C5V1LP-7 offers tighter voltage tolerance (±6% vs ±10%), automotive qualification, and superior thermal performance in ultra-compact DFN1006-2-making it optimal for space-constrained, high-reliability designs.
Availability
BZT52C5V1LP-7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioning, and medical wearable battery monitoring requiring stable component supply and long-term lifecycle support.
Supply support for BZT52C5V1LP-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, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the U.S.
This part belongs to the BZT52C LP series of automotive-qualified Zener diodes, designed specifically for compact, high-reliability voltage regulation and transient suppression in space-constrained electronic systems.
FAQ
What is the maximum reverse voltage this diode can withstand before breakdown?
The BZT52C5V1LP-7 has a nominal zener voltage of 5.1 V with a guaranteed range of 4.8–5.4 V at 5 mA test current. Breakdown occurs sharply within this band; operation above 5.4 V at rated current risks exceeding 250 mW power limit and thermal runaway. It is not rated for sustained reverse voltage beyond its specified VZ range.
Is this diode suitable for use in a 12 V automotive system?
Yes-it is AEC-Q101 qualified and commonly deployed in 12 V systems for clamping transients on 5 V logic rails. However, it must be used with a series current-limiting resistor to restrict power dissipation to ≤250 mW. For direct 12 V rail protection, a higher-voltage Zener or TVS diode is recommended.
Does the DFN1006-2 package require special soldering profile considerations?
No special profile is needed. The device is Level 1 moisture sensitive and compatible with standard lead-free reflow profiles (peak 260°C). Its NiPdAu terminals ensure reliable wetting on common PCB finishes. Recommended pad layout is provided in Diodes Inc. DS30506 Rev. 16, page 4.
How does the −2.7 mV/°C temperature coefficient affect circuit performance?
This negative coefficient means the zener voltage decreases by 2.7 mV per degree Celsius rise. Over a 100°C range (−40°C to +60°C), VZ shifts by ~270 mV-approximately ±5.3%. Designers must account for this in precision references; it is acceptable for general-purpose clamping where ±10% tolerance is sufficient.
BZT52C5V1LP-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 0402 (1006 Metric)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 5.1 V
- Tolerance:
- ±6%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 60 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 2 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:
- X1-DFN1006-2
BZT52C5V1LP-7 FAQ
1.How can I place an order for BZT52C5V1LP-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C5V1LP-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 BZT52C5V1LP-7 reliable?
The price and inventory of BZT52C5V1LP-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C5V1LP-7 is usually 5 days.
3.What payment methods are accepted for BZT52C5V1LP-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C5V1LP-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C5V1LP-7?
BZT52C5V1LP-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C5V1LP-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 BZT52C5V1LP-7?
For technical support, including BZT52C5V1LP-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C5V1LP-7 requirements.
6.How does Aetrix verify that BZT52C5V1LP-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C5V1LP-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 BZT52C5V1LP-7 meets industry standards.
7.What is the process for return or replacement of BZT52C5V1LP-7?
All BZT52C5V1LP-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C5V1LP-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 BZT52C5V1LP-7 part is unused and in its original packaging.
Return procedure for BZT52C5V1LP-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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