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Diodes Incorporated BZT52C9V1LP-7
- Part No.:
- BZT52C9V1LP-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- 0402 (1006 Metric)
- Datasheet:
-
BZT52C9V1LP-7.pdf
- Description:
- DIODE ZENER 9.1V 250MW 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:499
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Product details
Overview
BZT52C9V1LP-7 from Diodes Incorporated is a surface-mount Zener diode with nominal zener voltage 9.1 V, ±5.5% tolerance (8.5–9.6 V), 250 mW power dissipation, 15 Ω zener impedance at 5 mA, and AEC-Q101 qualification for automotive-grade reliability-used for precision voltage regulation and overvoltage protection in low-power sensor biasing circuits.
For engineers reviewing the BZT52C9V1LP-7 datasheet, BZT52C9V1LP-7 pinout, BZT52C9V1LP-7 application, or BZT52C9V1LP-7 equivalent, key selection criteria include zener voltage accuracy at 5 mA test current, thermal resistance of 500 °C/W on FR-4, DFN1006-2 footprint compatibility, and cathode-dot polarity marking for automated placement verification.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown when reverse-biased above its specified zener voltage. It exhibits a positive temperature coefficient of +3.8 mV/°C to +7.0 mV/°C across its operating range and maintains stable regulation down to 0.5 μA reverse leakage at 6.0 V.
The DFN1006-2 package enables high-density PCB layouts with minimal thermal mass, and its NiPdAu-plated terminals ensure solderability per MIL-STD-202 Method 208. The device is rated for operation from –65 °C to +150 °C and qualified to AEC-Q101 for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.1 V nominal, 8.5–9.6 V range at 5 mA - defines regulated output voltage under typical bias conditions |
| Power Dissipation (PD) | 250 mW at TA = 25 °C - limits continuous power handling on standard FR-4 layout |
| Zener Impedance (ZZT) | 15 Ω at IZT = 5 mA - determines regulation stiffness and output voltage variation under load shifts |
| Reverse Leakage (IR) | 0.5 μA max at VR = 6.0 V - ensures minimal quiescent current in standby voltage-sense paths |
| Thermal Resistance (RθJA) | 500 °C/W - dictates junction temperature rise per milliwatt dissipated on minimum pad layout |
| Temp. Coefficient (αVZ) | +3.8 to +7.0 mV/°C at IZTC = 5 mA - quantifies drift direction and magnitude over temperature |
| Package | DFN1006-2 (1.0 × 0.6 × 0.4 mm) - ultra-compact, leadless, RoHS-compliant footprint for space-constrained designs |
Pinout & Package
DFN1006-2 is a 2-terminal, leadless plastic package with exposed copper thermal pad. Cathode is marked by a dot on the top surface; anode is unmarked. Terminals are NiPdAu-plated for reliable reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node | Connected to circuit ground or lower-potential rail during zener regulation mode |
| Cathode | Reverse breakdown terminal / Regulated output node | Provides stable 9.1 V reference when reverse-biased; dot-marked side on package top |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, humidity, and mechanical shock |
| Lead-free & RoHS compliant | No intentionally added lead; UL 94V-0 molded compound meets environmental compliance requirements |
| Moisture Sensitivity Level 1 | Unlimited floor life at ≤30 °C/60% RH - eliminates bake requirement before SMT assembly |
| Ultra-small DFN1006-2 footprint | 1.0 mm × 0.6 mm area - enables placement in tight spaces such as wearable sensor modules |
| Cathode dot marking | Visible polarity indicator aligned with JEDEC-standard orientation - supports AOI and pick-and-place verification |
Applications
| Automotive Cabin Sensors | Industrial IoT Node Power Supervision |
|---|---|
Use Scenario: Voltage reference for MEMS pressure sensor signal conditioning in HVAC control modules. IC Role / Device Role / Timing Role: Zener diode provides stable 9.1 V bias to op-amp input stage and ADC reference divider network. Use Value: Tight 5.5% VZ tolerance and +3.8 mV/°C tempco enable <±1.2% total error over –40 °C to +125 °C. | Use Scenario: Overvoltage clamp protecting 3.3 V MCU GPIO pins from transient surges on 9 V battery-supplied edge nodes. IC Role / Device Role / Timing Role: Reverse-biased clamping element shunting excess energy to ground when input exceeds 9.6 V. Use Value: 15 Ω ZZT ensures clamping voltage stays within safe margin below MCU absolute maximum rating. |
| Medical Wearable Battery Monitoring | Smart Home Smoke Detector Reference |
Use Scenario: Precision voltage reference for lithium-ion cell voltage measurement in compact fitness trackers. IC Role / Device Role / Timing Role: Supplies regulated 9.1 V to resistive divider feeding 12-bit SAR ADC input. Use Value: 0.5 μA IR at 6 V minimizes loading error in high-impedance divider networks. | Use Scenario: Stable reference source for electrochemical CO sensor biasing in battery-powered smoke alarms. IC Role / Device Role / Timing Role: Zener establishes fixed bias point for sensor transimpedance amplifier feedback network. Use Value: AEC-Q101 qualification ensures long-term stability and reliability over 10-year field deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5240BLT1G | Zener voltage 10 V (9.4–10.6 V), 350 mW PD, SOT-23 package | Larger footprint; higher power but looser 6% tolerance and +4.5 mV/°C tempco | Select when board space allows SOT-23 and higher power margin is needed |
| BZX384-C9V1 | Zener voltage 9.1 V (8.6–9.6 V), 300 mW PD, SOD-323 package | Slightly tighter VZ tolerance (±5.5% vs ±5.5%), but 300 mW rating and 100 Ω ZZT | Prefer for higher power dissipation needs where 15 Ω ZZT is not critical |
Compared with MMBZ5240BLT1G and BZX384-C9V1, BZT52C9V1LP-7 offers superior regulation stiffness (15 Ω vs ≥100 Ω), smallest footprint (DFN1006-2), and AEC-Q101 qualification-making it optimal for space-constrained, high-reliability automotive and industrial sensing nodes.
Availability
BZT52C9V1LP-7 is available at Aetrix Electronics and suitable for automotive cabin sensors, industrial IoT node power supervision, and medical wearable battery monitoring requiring stable component supply and long-lifecycle support.
Supply support for BZT52C9V1LP-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, application-optimized components for automotive, industrial, and consumer markets.
The BZT52C series belongs to Diodes' AEC-Q101-qualified Zener diode product line, engineered specifically for precision voltage reference and transient suppression in harsh-environment electronics.
FAQ
What is the maximum reverse voltage this diode can withstand before breakdown?
The BZT52C9V1LP-7 has a nominal zener voltage of 9.1 V with a guaranteed range of 8.5 V to 9.6 V at 5 mA test current. Its reverse breakdown is sharply defined within this band; operation below 8.5 V yields negligible reverse current (<0.5 μA at 6.0 V), and exceeding 9.6 V initiates controlled conduction. It is not rated for sustained operation above 9.6 V without current limiting.
Can this Zener diode be used in place of a 9 V battery replacement reference?
Yes-it delivers stable 9.1 V regulation at 5 mA with ±5.5% tolerance and low dynamic impedance (15 Ω), making it suitable as a compact, low-cost alternative to battery-based references in low-power sensor interfaces. However, it requires a current-limiting resistor and does not provide energy storage; system design must ensure adequate bias current under all operating conditions.
Is the DFN1006-2 package compatible with standard reflow profiles?
Yes-the DFN1006-2 package uses NiPdAu-plated terminals and is qualified for lead-free reflow per J-STD-020C Level 1 moisture sensitivity. It supports standard Pb-free peak temperatures up to 260 °C and is compatible with Type 3 and Type 4 solder pastes when using recommended pad geometry from Diodes' AP02007 layout guide.
Does this part have a specified failure mode under overcurrent stress?
Under sustained overcurrent beyond its 250 mW power limit, the BZT52C9V1LP-7 typically fails short-circuit due to localized metallization melt in the DFN1006-2 die attach region. This behavior is consistent with AEC-Q101 stress testing and enables predictable system-level fault detection when combined with series current limiting.
BZT52C9V1LP-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):
- 9.1 V
- Tolerance:
- ±6%
- Power - Max:
- 250 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 500 nA @ 6 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
BZT52C9V1LP-7 FAQ
1.How can I place an order for BZT52C9V1LP-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C9V1LP-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 BZT52C9V1LP-7 reliable?
The price and inventory of BZT52C9V1LP-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BZT52C9V1LP-7 is usually 5 days.
3.What payment methods are accepted for BZT52C9V1LP-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C9V1LP-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C9V1LP-7?
BZT52C9V1LP-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C9V1LP-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 BZT52C9V1LP-7?
For technical support, including BZT52C9V1LP-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C9V1LP-7 requirements.
6.How does Aetrix verify that BZT52C9V1LP-7 is sourced from the original manufacturer or authorized distributors?
All BZT52C9V1LP-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 BZT52C9V1LP-7 meets industry standards.
7.What is the process for return or replacement of BZT52C9V1LP-7?
All BZT52C9V1LP-7 units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C9V1LP-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 BZT52C9V1LP-7 part is unused and in its original packaging.
Return procedure for BZT52C9V1LP-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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