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Diodes Incorporated BZT52C10Q-7-F
- Part No.:
- BZT52C10Q-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SOD-123
- Datasheet:
-
BZT52C10Q-7-F.pdf
- Description:
- DIODE ZENER 10V 370MW SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:721
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Product details
Overview
BZT52C10Q-7-F from Diodes Incorporated is an AEC-Q101 qualified surface-mount Zener diode with nominal 10 V zener voltage (9.4–10.6 V), 5 mA test current, 20 Ω maximum zener impedance at 5 mA, 0.2 µA maximum reverse leakage at 8.0 V, and ±0.4 %/°C temperature coefficient - used for precision voltage regulation and overvoltage protection in automotive power rails.
For engineers reviewing the BZT52C10Q-7-F datasheet, BZT52C10Q-7-F pinout, BZT52C10Q-7-F application, or BZT52C10Q-7-F equivalent, key selection criteria include automotive qualification status, SOD123 package thermal performance, zener voltage tolerance at 5 mA, low leakage under bias, and compatibility with automated reflow assembly.
Technical Context
This device operates as a two-terminal voltage reference diode, conducting in reverse breakdown to clamp or regulate voltage across sensitive circuit nodes. Its planar die construction ensures stable breakdown characteristics and low noise under DC or low-frequency transient conditions.
Designed for medium-current general-purpose regulation, it delivers 370 mW power dissipation at 25°C ambient and derates linearly above 75°C case temperature. The SOD123 package provides 150°C/W junction-to-lead thermal resistance, enabling reliable operation in compact automotive PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 10 V nominal, 9.4–10.6 V range at 5 mA - defines regulated output voltage tolerance under standard test conditions. |
| Power Dissipation (PD) | 370 mW at TA = +25°C - maximum continuous power before thermal derating applies. |
| Zener Impedance (ZZT) | 20 Ω max at 5 mA, 1 kHz - indicates voltage regulation stability under small-signal AC load variations. |
| Reverse Leakage (IR) | 0.2 µA max at VR = 8.0 V - ensures minimal quiescent current draw in standby or sensing circuits. |
| Temperature Coefficient | ±0.4 %/°C - quantifies zener voltage drift per degree Celsius, critical for wide-temperature automotive environments. |
| Package | SOD123 - surface-mount plastic case with cathode band marking, optimized for high-volume pick-and-place assembly. |
Pinout & Package
Two-terminal device in SOD123 package: Cathode (marked end) and Anode (unmarked end). Polarity indicated by molded cathode band; no internal circuitry or multi-pin functionality.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode | Breakdown terminal | Connected to regulated node; reverse-biased voltage applied here to initiate zener conduction. |
| Anode | Reference terminal | Typically tied to system ground or lower-potential rail; completes current path during regulation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics requiring high reliability. |
| Planar die construction | Enables tight zener voltage distribution and repeatable breakdown behavior across production lots. |
| Lead-free & halogen-free | Complies with RoHS 2 and automotive green standards (<900 ppm Br/Cl, <1000 ppm Sb), supporting eco-compliant manufacturing. |
| Moisture sensitivity Level 1 | No floor life limitation before reflow; eliminates baking requirements and simplifies SMT line handling. |
Applications
| Automotive ECU Power Monitoring | Industrial Sensor Reference |
|---|---|
|
Use Scenario: Monitoring 12 V battery rail in engine control modules to detect undervoltage or overvoltage faults. IC Role / Device Role / Timing Role: Zener diode acting as precision shunt reference for comparator input threshold. Use Value: Tight 9.4–10.6 V tolerance enables accurate detection of battery faults within ±0.6 V window at 5 mA bias. |
Use Scenario: Providing stable 10 V reference for analog front-end of pressure or temperature transducers. IC Role / Device Role / Timing Role: Two-terminal voltage reference establishing known bias point for signal conditioning circuitry. Use Value: Low 0.2 µA leakage at 8 V ensures minimal loading on high-impedance sensor outputs. |
| USB-C PD Protection Clamp | Consumer Power Supply Feedback |
|
Use Scenario: Clamping transient surges on USB-C VBUS lines during hot-plug events in portable docking stations. IC Role / Device Role / Timing Role: Fast-response shunt protector limiting peak voltage to safe levels during ESD or load-dump transients. Use Value: 20 Ω zener impedance ensures rapid clamping response without excessive overshoot under 100 ns pulses. |
Use Scenario: Secondary-side voltage feedback in isolated AC/DC adapters for smart home devices. IC Role / Device Role / Timing Role: Shunt regulator setting optocoupler LED current to maintain output voltage regulation. Use Value: ±0.4 %/°C tempco maintains regulation accuracy across 0–70°C ambient operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5240B-TP (Micro Commercial) | 10 V nominal, 5% tolerance (9.5–10.5 V), 500 mW rating, SOD-123 package, no AEC-Q101 qualification. | Commercial-grade only; unsuitable for automotive systems requiring AEC-Q101 compliance. | Select when cost sensitivity outweighs automotive qualification needs and wider voltage tolerance is acceptable. |
| BZX84-C10 (Nexperia) | 10 V nominal, 5% tolerance (9.5–10.5 V), 300 mW rating, SOT-23 package, AEC-Q101 qualified. | Lower power rating and different footprint; requires PCB redesign and thermal reassessment. | Choose only if SOT-23 layout is already fixed and 300 mW dissipation suffices for target load conditions. |
Compared with MMSZ5240B-TP and BZX84-C10, BZT52C10Q-7-F uniquely combines AEC-Q101 qualification, 370 mW power capability in SOD123, and 1% zener voltage tolerance - making it optimal for space-constrained, thermally demanding automotive voltage monitoring.
Availability
BZT52C10Q-7-F is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and consumer power supply feedback circuits requiring stable component supply and full traceability.
Supply support for BZT52C10Q-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 BZT52 series belongs to Diodes' automotive-qualified Zener diode product line, engineered specifically for precision voltage regulation and transient suppression in harsh-temperature vehicle subsystems.
FAQ
What is the maximum continuous reverse power dissipation for BZT52C10Q-7-F at 75°C ambient?
At TL = +75°C, the device supports 500 mW power dissipation per the datasheet's thermal resistance specification (RθJL = 150°C/W). This higher rating applies only when mounted on a thermally enhanced pad or heatsink, not standard FR-4 PCBs.
Does BZT52C10Q-7-F have a specified capacitance value?
No capacitance value is specified in the DS18004 datasheet for BZT52C10Q-7-F. Figure 5 shows typical total capacitance of ~15 pF for 10 V nominal Zeners at 1 MHz and 1 V reverse bias, but this is not a guaranteed parameter and varies with test conditions.
Can BZT52C10Q-7-F be used in series or parallel configurations?
Series connection is permissible for higher voltage clamping, but parallel use is discouraged due to mismatched zener voltages causing current imbalance. For parallel operation, external balancing resistors are required per Diodes Incorporated application guidance.
What does the "Q" suffix indicate in BZT52C10Q-7-F?
The "Q" denotes AEC-Q101 qualification per the ordering information table. It distinguishes the automotive-grade version from commercial variants (e.g., BZT52C10-7-F), confirming compliance with stress testing for temperature cycling, humidity, and mechanical shock.
BZT52C10Q-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):
- 10 V
- Tolerance:
- ±6%
- Power - Max:
- 370 mW
- Impedance (Max) (Zzt):
- 20 Ohms
- Current - Reverse Leakage @ Vr:
- 200 nA @ 7 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
BZT52C10Q-7-F FAQ
1.How can I place an order for BZT52C10Q-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BZT52C10Q-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 BZT52C10Q-7-F reliable?
The price and inventory of BZT52C10Q-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 BZT52C10Q-7-F is usually 5 days.
3.What payment methods are accepted for BZT52C10Q-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BZT52C10Q-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BZT52C10Q-7-F?
BZT52C10Q-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BZT52C10Q-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 BZT52C10Q-7-F?
For technical support, including BZT52C10Q-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BZT52C10Q-7-F requirements.
6.How does Aetrix verify that BZT52C10Q-7-F is sourced from the original manufacturer or authorized distributors?
All BZT52C10Q-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 BZT52C10Q-7-F meets industry standards.
7.What is the process for return or replacement of BZT52C10Q-7-F?
All BZT52C10Q-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BZT52C10Q-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 BZT52C10Q-7-F part is unused and in its original packaging.
Return procedure for BZT52C10Q-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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