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Diodes Incorporated MMBZ5246BS-7-F
- Part No.:
- MMBZ5246BS-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
MMBZ5246BS-7-F.pdf
- Description:
- DIODE ZENER ARRAY 16V SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:3,010
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Product details
Overview
MMBZ5246BS-7-F from Diodes Incorporated is a dual isolated 16 V, 200 mW surface-mount Zener diode in SOT-363 package, with nominal Zener voltage 16.0 V (min 15.2 V, max 16.8 V) at 7.8 mA test current, 17 Ω dynamic impedance at 1 kHz, and 0.1 μA reverse leakage at 12 V, used for precision voltage regulation and overvoltage protection in compact power management circuits.
For engineers reviewing the MMBZ5246BS-7-F datasheet, MMBZ5246BS-7-F pinout, MMBZ5246BS-7-F application, or MMBZ5246BS-7-F equivalent, key selection criteria include Zener voltage tolerance, thermal resistance (625 °C/W), dual-diode isolation, SOT-363 footprint compatibility, and RoHS-compliant lead-free plating for high-density PCB assembly.
Technical Context
This dual-Zener device integrates two electrically isolated 16 V Zener junctions in a single ultra-small SOT-363 package, enabling independent voltage reference or clamping functions on shared PCB real estate. Its planar die construction ensures stable breakdown characteristics across -65 °C to +150 °C operating range.
Designed for automated pick-and-place assembly, it delivers 200 mW total power dissipation with 625 °C/W junction-to-ambient thermal resistance when mounted per Diodes Inc.'s recommended FR4 pad layout, and maintains <0.1 μA reverse leakage at VR = 12 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 16.0 V nominal (15.2–16.8 V range at IZT = 7.8 mA); enables precise 16 V rail clamping or reference generation |
| Power Dissipation (PD) | 200 mW; supports low-power biasing and signal-level protection without heatsinking |
| Zener Impedance (ZZT) | 17 Ω at 1 kHz; ensures minimal voltage deviation under dynamic load transients |
| Reverse Leakage (IR) | 0.1 μA at VR = 12 V; guarantees negligible standby current in battery-powered systems |
| Thermal Resistance (RθJA) | 625 °C/W; requires careful thermal pad design on FR4 to sustain full power at 25 °C ambient |
| Package | SOT-363; 0.006 g weight, 2.2 mm × 1.35 mm footprint ideal for space-constrained IoT sensor nodes |
Pinout & Package
SOT-363 package with six terminals: two anodes (A1, A2), two cathodes (C1, C2), and two no-connect (NC) pins - providing dual independent Zener functions in one footprint. Molded plastic case meets UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| C1 | Cathode of Zener 1 | Connected to regulated output node for 16 V clamping; reverse-biased during operation |
| A1 | Anode of Zener 1 | Ground or low-side reference point for first Zener junction |
| C2 | Cathode of Zener 2 | Independent clamping node; electrically isolated from C1/A1 for dual-rail use |
| A2 | Anode of Zener 2 | Second ground/reference point; enables separate bias paths for mixed-voltage systems |
| NC | No Connect | Unused internal terminal; must remain unconnected to avoid parasitic coupling |
| NC | No Connect | Unused internal terminal; no PCB trace or solder required |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated Zener junctions | Enables independent 16 V regulation on two signal paths without cross-talk or shared thermal drift |
| Planar die construction | Delivers tight 5% Zener voltage tolerance and stable long-term parametric drift (<1% ΔVZ/1000 hrs) |
| Lead-free / RoHS-compliant plating | Matte tin finish over Alloy 42 leadframe ensures solderability and eliminates Pb-based contamination in medical/industrial BOMs |
| Moisture sensitivity Level 1 | Zero bake requirement before reflow; compatible with standard J-STD-020D assembly processes |
Applications
| USB Port ESD Protection | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Clamping transient surges on USB D+ and D− lines during hot-plug events. IC Role / Device Role / Timing Role: Dual-Zener acts as bidirectional voltage limiter, with each junction protecting one data line independently. Use Value: 16 V breakdown prevents damage to 3.3 V USB transceivers while maintaining signal integrity below 480 Mbps. | Use Scenario: Stabilizing excitation voltage for 4–20 mA current-loop pressure sensors in factory automation. IC Role / Device Role / Timing Role: Provides low-drift 16 V reference for op-amp biasing and ADC reference scaling. Use Value: 0.1 μA leakage and 17 Ω impedance ensure <0.02% full-scale error in 16-bit analog front-ends. |
| Low-Power IoT Node Power Management | Automotive Body Control Module (BCM) Voltage Monitoring |
Use Scenario: Regulating auxiliary 16 V supply for BLE SoC peripherals in coin-cell–powered trackers. IC Role / Device Role / Timing Role: Functions as shunt regulator, sinking excess current to maintain stable rail under variable load. Use Value: 200 mW rating and 625 °C/W RθJA allow continuous operation at 45 °C ambient without derating. | Use Scenario: Detecting battery overvoltage (>16 V) in 12 V automotive BCMs to trigger charge control logic. IC Role / Device Role / Timing Role: Serves as precision threshold detector via comparator input tied to C1/A1 junction. Use Value: 15.2–16.8 V tolerance band aligns with ISO 16750-2 pulse 4a overvoltage test limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C16LT1G | Single 16 V Zener in SOT-23; no dual isolation; 30 Ω ZZT; 100 mW PD | Requires two devices for dual-rail use; higher impedance reduces regulation accuracy | Select when board area allows discrete placement and thermal budget permits lower power |
| MMBZ5246B-7-F | SOT-23 variant; same electrical specs but single Zener; lacks second isolated junction | Cannot support independent dual-clamp topology; limited to single-rail reference | Choose only if SOT-363 footprint is unavailable and dual functionality is unnecessary |
Compared with BZX84-C16LT1G and MMBZ5246B-7-F, MMBZ5246BS-7-F uniquely provides dual 16 V Zeners in one SOT-363 package-reducing component count by 50%, improving thermal tracking between junctions, and enabling compact dual-rail protection without layout compromise.
Availability
MMBZ5246BS-7-F is available at Aetrix Electronics and suitable for USB interface protection, industrial sensor signal conditioning, and low-power IoT node power management requiring stable component supply and RoHS-compliant sourcing.
Supply support for MMBZ5246BS-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 industrial, computing, and consumer markets.
This part belongs to the MMBZ52xxBS series of dual Zener diodes, designed specifically for space-constrained voltage regulation and ESD protection in high-volume automated assembly environments.
FAQ
What is the maximum reverse voltage this device can withstand before breakdown?
The MMBZ5246BS-7-F has a nominal Zener voltage of 16.0 V with a guaranteed range of 15.2 V to 16.8 V at 7.8 mA test current. It begins controlled reverse conduction within this band and is rated for continuous operation up to its 200 mW power limit. The absolute maximum non-repetitive surge voltage is not specified separately; safe operation requires limiting peak current to avoid exceeding thermal limits.
How does the dual-Zener configuration improve circuit reliability compared to using two separate SOT-23 diodes?
The monolithic dual-Zener structure ensures matched temperature coefficients and identical aging behavior between both junctions, reducing drift-induced imbalance in differential clamping applications. Its shared thermal mass also minimizes differential self-heating effects that could cause timing skew or offset in precision analog circuits.
Is this device suitable for use in automotive applications meeting AEC-Q200 requirements?
No-MMBZ5246BS-7-F is not AEC-Q200 qualified. While it operates from -65 °C to +150 °C and meets RoHS, it lacks the stress testing, failure analysis, and qualification documentation required for automotive-grade components. For AEC-Q200-compliant alternatives, consult Diodes Inc.'s Automotive Zener portfolio.
Can the NC pins be left floating or must they be grounded?
The two NC pins are internally unconnected and must remain unconnected on the PCB-neither grounded nor tied to any net. Routing traces to them may introduce parasitic capacitance or risk shorting adjacent terminals due to SOT-363's fine pitch (0.65 mm). Standard practice is to omit pads or cover with solder mask.
MMBZ5246BS-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Configuration:
- 2 Independent
- Voltage - Zener (Nom) (Vz):
- 16 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 17 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 12 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:
- SOT-363
MMBZ5246BS-7-F FAQ
1.How can I place an order for MMBZ5246BS-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5246BS-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 MMBZ5246BS-7-F reliable?
The price and inventory of MMBZ5246BS-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 MMBZ5246BS-7-F is usually 5 days.
3.What payment methods are accepted for MMBZ5246BS-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5246BS-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5246BS-7-F?
MMBZ5246BS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5246BS-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 MMBZ5246BS-7-F?
For technical support, including MMBZ5246BS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5246BS-7-F requirements.
6.How does Aetrix verify that MMBZ5246BS-7-F is sourced from the original manufacturer or authorized distributors?
All MMBZ5246BS-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 MMBZ5246BS-7-F meets industry standards.
7.What is the process for return or replacement of MMBZ5246BS-7-F?
All MMBZ5246BS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5246BS-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 MMBZ5246BS-7-F part is unused and in its original packaging.
Return procedure for MMBZ5246BS-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ5246BS-7-F Tags
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Diodes Incorporated
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