My Inquiry
My Account
Diodes Incorporated MMBZ5245BWQ-7-F
- Part No.:
- MMBZ5245BWQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Zener Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
MMBZ5245BWQ-7-F.pdf
- Description:
- DIODE ZENER 15V 200MW SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:1,790
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MMBZ5245BWQ-7-F from Diodes Incorporated is a 15 V, 200 mW surface-mount Zener diode in SOT323 package, rated for AEC-Q101 automotive reliability, with 14.25–15.75 V zener voltage tolerance at 8.5 mA test current and 0.1 µA max reverse leakage at 11 V, used for precision voltage regulation and overvoltage protection in automotive body control modules.
For engineers reviewing the MMBZ5245BWQ-7-F datasheet, MMBZ5245BWQ-7-F pinout, MMBZ5245BWQ-7-F application, or MMBZ5245BWQ-7-F equivalent, key selection criteria include zener voltage tolerance (±5%), low thermal resistance (625 °C/W), AEC-Q101 qualification, RoHS/halogen-free compliance, and SOT323 footprint compatibility with high-density PCB layouts.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable reference voltage under varying load and temperature conditions. Its 15 V nominal zener voltage is specified at 8.5 mA test current, with dynamic impedance of 16 Ω at that point and 600 Ω at 0.25 mA, enabling accurate clamping across low-to-moderate current ranges.
The device is qualified per AEC-Q101 for automotive applications, features matte tin-plated alloy 42 leadframe, UL 94V-0 molded plastic case, and moisture sensitivity level 1 - ensuring robust performance in reflow-soldered automotive electronics without preconditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nominal) | 15 V - precise DC voltage reference for regulator feedback or signal clamping |
| Zener Voltage Range | 14.25–15.75 V @ 8.5 mA - ±5% tolerance ensures predictable clamping threshold |
| Power Dissipation | 200 mW - limits continuous dissipation on FR-4 board with recommended pad layout |
| Zener Impedance | 16 Ω @ 8.5 mA - low dynamic resistance maintains voltage stability under load variation |
| Reverse Leakage | 0.1 µA @ 11 V - minimal off-state current preserves battery life in always-on circuits |
| Thermal Resistance | 625 °C/W - defines junction-to-ambient rise per watt; requires thermal-aware layout |
| Operating Temp | −65 to +150 °C - supports under-hood and cabin-mounted automotive ECUs |
Pinout & Package
Package: SOT323 - ultra-small 3-pin surface-mount package (2.15 mm × 2.10 mm × 0.95 mm), optimized for automated placement and high-density routing. Polarity marked with cathode band on top view.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Current entry terminal in forward bias | Connected to lower-potential node during regulation or clamping |
| Cathode (Pin 2) | Current exit terminal in reverse breakdown | Connected to regulated or protected node; marked with band |
| NC / Heat Sink Pad (Pin 3) | Non-connected internal leadframe extension | No electrical function; improves mechanical anchoring and thermal conduction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HAST, and ESD testing |
| Halogen- and antimony-free "Green" construction | Meets <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - satisfies Tier-1 automotive material declarations |
| SOT323 footprint | Enables 0.65 mm pitch routing and compatibility with standard pick-and-place equipment |
| Lead-free matte tin plating | Solderable per MIL-STD-202 Method 208; eliminates post-solder cleaning for automotive assembly lines |
Applications
| Automotive Body Control Module | Infotainment Power Rail Clamp |
|---|---|
Use Scenario: Voltage stabilization for microcontroller I/O supply rail in door module ECU. IC Role / Device Role / Timing Role: Zener clamp protecting 3.3 V LDO input against load dump transients up to 24 V. Use Value: 15 V breakdown prevents LDO overvoltage failure while maintaining <0.1 µA leakage to avoid quiescent current penalty. | Use Scenario: Overvoltage suppression on USB VBUS line in head unit power management. IC Role / Device Role / Timing Role: Fast-acting shunt regulator limiting transient spikes to ≤15.75 V during hot-plug events. Use Value: 16 Ω dynamic impedance ensures rapid voltage settling within 100 ns of spike onset. |
| ADAS Camera Sensor Bias Supply | Electric Power Steering (EPS) Feedback Circuit |
Use Scenario: Reference voltage source for analog front-end gain calibration in surround-view camera. IC Role / Device Role / Timing Role: Precision 15 V reference feeding ADC reference divider network. Use Value: ±5% voltage tolerance and −65 to +150 °C operation ensure consistent calibration across vehicle lifetime. | Use Scenario: Signal-level clamping in torque sensor analog output path. IC Role / Device Role / Timing Role: Bidirectional protection element limiting sensor output swing to safe range for MCU ADC input. Use Value: Low 600 Ω knee impedance at 0.25 mA enables effective clamping even during low-current fault conditions. |
Availability
MMBZ5245BWQ-7-F is available at Aetrix Electronics and suitable for automotive body control modules, infotainment power rail protection, and ADAS camera sensor bias supplies requiring stable component supply with full AEC-Q101 traceability and green material compliance.
Supply support for MMBZ5245BWQ-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 MMBZ5245BWQ belongs to Diodes' AEC-Q101-qualified Zener diode product line, engineered specifically for voltage reference and transient suppression in harsh-environment automotive electronics.
FAQ
What is the maximum power dissipation of MMBZ5245BWQ-7-F at 100°C ambient?
At 100°C ambient, the device's derated power dissipation is 100 mW, calculated using its 625 °C/W thermal resistance and 200 mW rating at 25°C. This linear derating follows the curve in Figure 1 of DS40377, where 50% power remains at 100°C - critical for under-hood applications where board temperature exceeds 85°C.
Is MMBZ5245BWQ-7-F compatible with lead-free reflow profiles?
Yes - the device uses matte tin-plated alloy 42 leadframe and is qualified for Pb-free reflow per J-STD-020 Level 1 moisture sensitivity. Its construction withstands peak temperatures up to 260°C for 10 seconds, matching standard SAC305 solder profiles without delamination or parametric shift.
How does the zener impedance vary between test currents?
Zener impedance is 16 Ω at 8.5 mA (IZT) and rises to 600 Ω at 0.25 mA (IZK), as specified in the Electrical Characteristics table. This reflects typical Zener behavior: lower impedance at higher bias current due to improved carrier injection and reduced series resistance dominance.
Can MMBZ5245BWQ-7-F replace MMBZ5245B in non-automotive designs?
Yes - electrically identical in zener voltage, impedance, and leakage, but MMBZ5245BWQ-7-F adds AEC-Q101 qualification, PPAP capability, and stricter green material compliance. For non-automotive use, it offers enhanced reliability and supply chain assurance without circuit redesign.
MMBZ5245BWQ-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 15 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 16 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 11 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:
- SOT-323
MMBZ5245BWQ-7-F FAQ
1.How can I place an order for MMBZ5245BWQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5245BWQ-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 MMBZ5245BWQ-7-F reliable?
The price and inventory of MMBZ5245BWQ-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 MMBZ5245BWQ-7-F is usually 5 days.
3.What payment methods are accepted for MMBZ5245BWQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5245BWQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5245BWQ-7-F?
MMBZ5245BWQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5245BWQ-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 MMBZ5245BWQ-7-F?
For technical support, including MMBZ5245BWQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5245BWQ-7-F requirements.
6.How does Aetrix verify that MMBZ5245BWQ-7-F is sourced from the original manufacturer or authorized distributors?
All MMBZ5245BWQ-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 MMBZ5245BWQ-7-F meets industry standards.
7.What is the process for return or replacement of MMBZ5245BWQ-7-F?
All MMBZ5245BWQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5245BWQ-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 MMBZ5245BWQ-7-F part is unused and in its original packaging.
Return procedure for MMBZ5245BWQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ5245BWQ-7-F Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
