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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Zener Diode Arrays

Diodes Incorporated MMBZ5241BS-7-F

Name: MMBZ5241BS-7-F
Brand: Diodes Incorporated
SKU: MMBZ5241BS-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MMBZ5241BS-7-F

Manufacturer:: Diodes Incorporated

Category:: Zener Diode Arrays

Package:: 6-TSSOP, SC-88, SOT-363

Datasheet:: MMBZ5241BS-7-F.pdf

Description:: DIODE ZENER ARRAY 11V SOT363

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Product details

Overview

MMBZ5241BS-7-F from Diodes Incorporated is a dual isolated 11 V, 200 mW surface-mount Zener diode in SOT-363 package, with nominal Zener voltage 11.0 V (min 10.45 V, max 11.55 V), test current 20 mA, and Zener impedance 22 Ω at I_ZT; used for precision voltage reference and overvoltage protection in compact power management circuits.

For engineers reviewing the MMBZ5241BS-7-F datasheet, MMBZ5241BS-7-F pinout, MMBZ5241BS-7-F application, or MMBZ5241BS-7-F equivalent, key selection criteria include Zener voltage tolerance (±5%), low dynamic impedance (22 Ω), dual-diode isolation, SOT-363 thermal performance (R_θJA = 625 °C/W), and RoHS-compliant lead-free plating.

Technical Context

This device integrates two electrically isolated Zener diodes in a single ultra-small SOT-363 package, enabling dual-rail voltage clamping or bidirectional transient suppression without cross-coupling. Each diode operates independently with identical 11 V nominal breakdown and shares only mechanical mounting.

It employs planar die construction for stable voltage regulation under pulsed conditions (1 kHz AC impedance test), supports automated pick-and-place assembly, and maintains specified leakage (<2.0 μA at 8.4 V) and forward voltage (0.9 V @ 10 mA) across -65°C to +150°C operating range.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	11.0 V nominal, 10.45–11.55 V range at 20 mA - ensures ±5% regulation accuracy for reference and clamp circuits
Power Dissipation (P_D)	200 mW - limits continuous dissipation on FR4 PCB with recommended pad layout
Zener Impedance (Z_ZT)	22 Ω at 20 mA - determines output voltage stability under load variation
Reverse Leakage (I_R)	≤2.0 μA at 8.4 V - defines minimum standby current in high-impedance bias networks
Forward Voltage (V_F)	0.9 V at 10 mA - enables use as low-drop rectifier or logic-level clamp in signal paths
Thermal Resistance (R_θJA)	625 °C/W - sets junction temperature rise per milliwatt on standard FR4 board

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 - provides dual independent Zener paths in 2.2 × 1.35 mm footprint.

Pin/Terminal	Circuit Role	Design Meaning
C1	Cathode of Zener 1	Connected to regulated node for 11 V clamping; reverse-biased during operation
A1	Anode of Zener 1	Ground or low-side reference point for first Zener path
C2	Cathode of Zener 2	Independent clamping node for second rail or bidirectional protection
A2	Anode of Zener 2	Separate ground or return path - electrically isolated from A1
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 structure	Enables independent voltage regulation on two signal/power rails without shared current paths
Planar die construction	Delivers repeatable Zener voltage tolerance and low parameter drift over temperature
Lead-free / RoHS-compliant plating	Matte tin finish over Alloy 42 leadframe meets global environmental compliance requirements
Moisture sensitivity Level 1	Eliminates need for dry-pack or baking prior to reflow soldering
Ultra-small SOT-363 footprint	Reduces PCB area by >50% vs. discrete dual-SOD-323 solutions while maintaining isolation

Applications

USB Port ESD Protection

Low-Power Sensor Reference

Use Scenario: Clamping transient voltages on USB D+ and D− lines during hot-plug events.

IC Role / Device Role / Timing Role: Dual Zener acts as bidirectional TVS with 11 V breakdown on each line relative to GND.

Use Value: Prevents damage to USB transceivers by limiting peak voltage to ≤11 V while maintaining signal integrity via low capacitance (<5 pF typical).

Use Scenario: Providing stable 11 V reference for analog front-end of battery-powered temperature sensor.

IC Role / Device Role / Timing Role: Zener diode supplies regulated bias voltage to op-amp input stage.

Use Value: Delivers ±5% voltage accuracy and <2 μA leakage to extend battery life in always-on sensing nodes.

Industrial PLC Input Conditioning

Automotive Body Control Module Clamp

Use Scenario: Protecting 24 V digital input channels against load dump and inductive kickback.

IC Role / Device Role / Timing Role: One Zener leg clamps positive transients; other handles negative excursions in isolated configuration.

Use Value: Survives 100 W non-repetitive surge (per Fig. 6) while maintaining channel isolation per IEC 61000-4-5 requirements.

Use Scenario: Regulating supply to microcontroller reset circuit in 12 V automotive subsystems.

IC Role / Device Role / Timing Role: Zener provides clean 11 V reference to supervisor IC monitoring V_CC.

Use Value: Operates reliably from -40°C to +125°C ambient and withstands 150°C junction temperature during engine-off storage.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-Zener voltage reference applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C11LT1G	Single 11 V Zener in SOT-23; no dual isolation; 30 Ω Z_ZT; 350 mW P_D	Requires two devices for dual-rail use; higher impedance reduces regulation precision	Select when space allows separate placement and higher power margin is needed
MMBZ5241BT-7-F	Same electrical specs but in SOT-563 (5-pin); one NC pin omitted; identical Zener characteristics	Smaller footprint (1.6 × 1.2 mm) but reduced thermal mass and no dual-NC isolation	Select when board area is critical and dual-no-connect isolation is not required

Compared with BZX84-C11LT1G and MMBZ5241BT-7-F, MMBZ5241BS-7-F uniquely delivers dual isolated 11 V regulation in minimal area with verified 22 Ω impedance and 200 mW derated power - essential for space-constrained, multi-rail protection designs.

Availability

MMBZ5241BS-7-F is available at Aetrix Electronics and suitable for USB interface protection, low-power sensor reference, industrial PLC input conditioning, and automotive body control module clamp applications requiring stable component supply and long-term lifecycle support.

Supply support for MMBZ5241BS-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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.

This part belongs to the MMBZ52xxBS series of dual Zener diodes designed specifically for high-density, automated-assembly voltage reference and transient suppression in portable, industrial, and automotive electronics.

FAQ

What is the maximum reverse leakage current for MMBZ5241BS-7-F at 8.4 V?

The maximum reverse leakage current is 2.0 μA at VR = 8.4 V, measured at TA = 25°C. This value ensures minimal standby current draw in high-impedance bias networks and contributes to low power consumption in battery-operated systems.

Can MMBZ5241BS-7-F be used for bidirectional ESD protection?

Yes - its dual isolated Zener structure allows one diode to clamp positive transients (cathode to signal, anode to GND) and the other to clamp negative transients (anode to signal, cathode to GND), forming a symmetrical 11 V clamping pair ideal for data line protection.

Is the SOT-363 package compatible with standard reflow profiles?

Yes - rated Moisture Sensitivity Level 1 means it can be stored indefinitely at ambient conditions and processed using standard Pb-free reflow profiles without pre-baking; the matte tin plating ensures reliable solder wetting per MIL-STD-202 Method 208.

How does thermal resistance affect power handling on a typical PCB?

With RθJA = 625 °C/W, dissipating 200 mW raises junction temperature by 125°C above ambient. On FR4 with recommended pad layout, this limits safe continuous operation to ≤25°C ambient unless derated per Fig. 1 - confirming its suitability for pulsed or low-duty-cycle applications.

MMBZ5241BS-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):: 11 V

Tolerance:: ±5%

Power - Max:: 200 mW

Impedance (Max) (Zzt):: 22 Ohms

Current - Reverse Leakage @ Vr:: 2 µA @ 8.4 V

Voltage - Forward (Vf) (Max) @ If:: 900 mV @ 10 mA

Operating Temperature:: -65°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-363

MMBZ5241BS-7-F FAQ

1.How can I place an order for MMBZ5241BS-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for MMBZ5241BS-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 MMBZ5241BS-7-F reliable?

The price and inventory of MMBZ5241BS-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 MMBZ5241BS-7-F is usually 5 days.

3.What payment methods are accepted for MMBZ5241BS-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5241BS-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MMBZ5241BS-7-F?

MMBZ5241BS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MMBZ5241BS-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 MMBZ5241BS-7-F?

For technical support, including MMBZ5241BS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5241BS-7-F requirements.

6.How does Aetrix verify that MMBZ5241BS-7-F is sourced from the original manufacturer or authorized distributors?

All MMBZ5241BS-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 MMBZ5241BS-7-F meets industry standards.

7.What is the process for return or replacement of MMBZ5241BS-7-F?

All MMBZ5241BS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5241BS-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 MMBZ5241BS-7-F part is unused and in its original packaging.

Return procedure for MMBZ5241BS-7-F:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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