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Diodes Incorporated MMBZ5245BS-7
- Part No.:
- MMBZ5245BS-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- -
- Datasheet:
-
MMBZ5245BS-7.pdf
- Description:
- DIODE ZENER DUAL 15V SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:48
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Product details
Overview
MMBZ5245BS-7 from Diodes Incorporated is a dual-isolated 15 V, 200 mW surface-mount Zener diode in SOT-363 package, rated for 8.5 mA test current and 16 Ω dynamic impedance at 1 kHz, used for precision voltage reference and overvoltage protection in low-power analog sensor interfaces and portable power rails.
For engineers reviewing the MMBZ5245BS-7 datasheet, MMBZ5245BS-7 pinout, MMBZ5245BS-7 application, or MMBZ5245BS-7 equivalent, key selection criteria include nominal Zener voltage (15 V), max reverse leakage (0.1 μA at 11 V), thermal resistance (625 °C/W), and dual-diode isolation in ultra-small SOT-363 for space-constrained biasing and clamping circuits.
Technical Context
This dual-Zener device integrates two independent 15 V Zener junctions in a single SOT-363 package, enabling bidirectional clamping or split-rail reference generation without external pairing. Each diode operates with tight tolerance (±5%: 14.25–15.75 V) and exhibits low leakage (≤0.1 μA at VR = 11 V).
Its planar die construction ensures stable breakdown characteristics across -65°C to +150°C, and the 200 mW power rating supports continuous regulation under low-current conditions typical in signal conditioning and ADC reference stabilization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (Nom) | 15 V - precise DC reference point for analog circuit biasing and feedback loops |
| Zener Voltage Range | 14.25–15.75 V - ±5% tolerance ensures predictable clamping threshold in ESD protection |
| Test Current (IZT) | 8.5 mA - operating point where Zener voltage and impedance are specified |
| Zener Impedance (ZZT) | 16 Ω at 1 kHz - low dynamic resistance maintains stable voltage under small-signal load variation |
| Max Reverse Leakage | 0.1 μA at 11 V - negligible standby current for battery-powered sensor nodes |
| Power Dissipation | 200 mW - limits thermal rise on FR4 PCB with recommended pad layout |
| Thermal Resistance | 625 °C/W - defines junction-to-ambient temperature rise per watt under natural convection |
Pinout & Package
SOT-363 (SC-70-6) plastic surface-mount package with six terminals: two anodes (A1, A2), two cathodes (C1, C2), and two no-connect (NC) pins. Dual isolated structure enables independent use of each Zener pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| C1 | Cathode of Zener 1 | Connected to regulated output node for forward-biased clamping or reverse-biased reference |
| A1 | Anode of Zener 1 | Ground or lower-potential rail connection for standard Zener operation |
| C2 | Cathode of Zener 2 | Enables second independent 15 V reference or bidirectional transient suppression |
| A2 | Anode of Zener 2 | Allows separate biasing path; supports differential or complementary clamping topologies |
| NC | No Connect | Unbonded internal terminal; must remain unconnected in PCB layout |
| NC | No Connect | Unbonded internal terminal; must remain unconnected in PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated Zener junctions | Two independent 15 V Zeners in one SOT-363 footprint reduce board area by ~40% vs. discrete pairs |
| Low leakage current | 0.1 μA max at 11 V enables microamp-level standby operation in always-on monitoring circuits |
| Tight voltage tolerance | ±5% (14.25–15.75 V) supports accurate 15 V rail sensing without post-calibration |
| RoHS-compliant & green molding compound | Halogen-free construction meets IPC-J-STD-020D Level 1 moisture sensitivity for reflow compatibility |
| Planar die construction | Ensures repeatable breakdown characteristics and long-term stability over temperature cycling |
Applications
| Industrial Sensor Signal Conditioning | Portable Device Power Rail Clamping |
|---|---|
Use Scenario: Stabilizing 15 V reference for 12-bit ADC front-end in temperature transmitters. IC Role / Device Role / Timing Role: Zener diode providing low-drift DC reference voltage for analog input scaling. Use Value: 16 Ω impedance and ±5% tolerance maintain <0.5 LSB error across 0–70°C ambient range. | Use Scenario: Protecting 15 V LDO output from transient spikes in handheld medical meters. IC Role / Device Role / Timing Role: Bidirectional clamping element limiting voltage excursions to ±15.75 V. Use Value: Dual isolated junctions allow symmetric clamping without shared thermal coupling or leakage interaction. |
| Automotive Body Control Module Biasing | IoT Node Battery Monitoring Reference |
Use Scenario: Generating stable 15 V bias for CAN transceiver supply in BCM sub-circuits. IC Role / Device Role / Timing Role: Precision shunt regulator maintaining clean local supply for interface ICs. Use Value: 0.1 μA leakage prevents measurable drain on 12 V vehicle battery during sleep mode. | Use Scenario: Providing known reference voltage for Li-ion cell voltage measurement in BLE-enabled trackers. IC Role / Device Role / Timing Role: Low-power Zener reference enabling accurate 0.1% full-scale ADC readings. Use Value: Tight 14.25–15.75 V range eliminates need for trimming resistors in production calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C15LT1G | Single 15 V Zener, SOT-23, 300 mW, 30 Ω Zzt | Lacks dual-diode integration; requires two devices for same functionality | Preferred when higher power margin or legacy SOT-23 footprint is required |
| MMBZ5245B-7-F | Same electrical specs but in SOT-23-3 (single Zener), no dual isolation | Cannot provide independent dual-clamp paths; unsuitable for differential protection | Select only if board space allows separate placement and thermal decoupling is not critical |
Compared with BZX84-C15LT1G and MMBZ5245B-7-F, MMBZ5245BS-7 uniquely delivers dual 15 V Zeners in one SOT-363, enabling compact bidirectional clamping or split-reference designs without performance trade-offs in leakage or impedance.
Availability
MMBZ5245BS-7 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable device power rail clamping, and automotive body control module biasing requiring stable component supply and RoHS-compliant sourcing.
Supply support for MMBZ5245BS-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, low-power components for industrial, computing, and consumer markets.
The MMBZ52xxBS series targets space-constrained, low-leakage Zener applications-designed specifically for automated assembly and high-volume portable electronics requiring dual-junction integration and green material compliance.
FAQ
What is the maximum reverse voltage before breakdown for MMBZ5245BS-7?
The nominal Zener voltage is 15 V with a guaranteed range of 14.25 V to 15.75 V at 8.5 mA test current. Breakdown occurs within this band; operation below 14.25 V yields minimal conduction (<0.1 μA at 11 V), confirming sharp knee behavior essential for precision reference use.
Can both Zener diodes in MMBZ5245BS-7 be used simultaneously without interference?
Yes-the device features fully isolated junctions with separate anode and cathode terminals (A1/C1 and A2/C2). Electrical and thermal coupling between diodes is negligible, enabling concurrent use in independent circuits such as dual-rail clamping or redundant reference paths.
Is MMBZ5245BS-7 suitable for automotive applications per AEC-Q200?
No-MMBZ5245BS-7 is not AEC-Q200 qualified. While it operates from -65°C to +150°C and meets RoHS/green requirements, Diodes Incorporated does not list this part in its AEC-Q200 stress-tested portfolio; automotive designs require verified qualified alternatives like BZX84-A15Q.
How does the SOT-363 package affect thermal performance compared to SOT-23?
SOT-363 has higher thermal resistance (625 °C/W) than typical SOT-23 variants (~300–400 °C/W) due to smaller copper pad area and thinner leadframe. Derating is required above 70°C ambient; full 200 mW dissipation is only valid at TA ≤ 25°C with recommended FR4 pad layout per AP02001.
MMBZ5245BS-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Configuration:
- -
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MMBZ5245BS-7 FAQ
1.How can I place an order for MMBZ5245BS-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5245BS-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 MMBZ5245BS-7 reliable?
The price and inventory of MMBZ5245BS-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ5245BS-7 is usually 5 days.
3.What payment methods are accepted for MMBZ5245BS-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5245BS-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5245BS-7?
MMBZ5245BS-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5245BS-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 MMBZ5245BS-7?
For technical support, including MMBZ5245BS-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5245BS-7 requirements.
6.How does Aetrix verify that MMBZ5245BS-7 is sourced from the original manufacturer or authorized distributors?
All MMBZ5245BS-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 MMBZ5245BS-7 meets industry standards.
7.What is the process for return or replacement of MMBZ5245BS-7?
All MMBZ5245BS-7 units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5245BS-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 MMBZ5245BS-7 part is unused and in its original packaging.
Return procedure for MMBZ5245BS-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ5245BS-7 Tags
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