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

Diodes Incorporated MMBZ5243BTS-7-F

Name: MMBZ5243BTS-7-F
Brand: Diodes Incorporated
SKU: MMBZ5243BTS-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MMBZ5243BTS-7-F

Manufacturer:: Diodes Incorporated

Category:: Zener Diode Arrays

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

Datasheet:: MMBZ5243BTS-7-F.pdf

Description:: DIODE ZENER ARRAY 13V SOT363

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Inventory:9,888

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Product details

Overview

MMBZ5243BTS-7-F from Diodes Incorporated is a triple-surface-mount Zener diode array in SOT363 package, providing three isolated 13 V ±5% Zener junctions with 9.5 mA test current, 13 Ω dynamic impedance at 9.5 mA, and 0.5 µA reverse leakage at 9.9 V. It delivers precision voltage regulation and overvoltage clamping in compact power management circuits for automotive ECUs and industrial sensor signal conditioning.

For engineers reviewing the MMBZ5243BTS-7-F datasheet, MMBZ5243BTS-7-F pinout, MMBZ5243BTS-7-F application, or MMBZ5243BTS-7-F equivalent, key selection criteria include nominal Zener voltage (13 V), Zener impedance (13 Ω), reverse leakage (0.5 µA @ 9.9 V), power dissipation (200 mW), and AEC-Q101 qualification for automotive reliability.

Technical Context

This device integrates three electrically isolated Zener diodes in a single ultra-small SOT363 package, enabling space-constrained multi-rail voltage reference or clamping without inter-device coupling. Each diode operates independently with identical electrical specs: 13 V nominal Zener voltage, 9.5 mA test current, and 13 Ω impedance at that current.

Designed for high-reliability environments, it meets AEC-Q101 stress testing requirements and features halogen/antimony-free "Green" construction with matte tin lead finish. Thermal resistance is 625 °C/W, supporting operation from –65 °C to +150 °C ambient.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	13 V nominal, 12.35–13.65 V range at 9.5 mA - ensures stable reference under production tolerance
Zener Impedance (Z_ZT)	13 Ω at I_ZT = 9.5 mA - low dynamic resistance enables tight regulation during load transients
Reverse Leakage (I_R)	0.5 µA max at V_R = 9.9 V - minimal standby current preserves battery life in always-on circuits
Power Dissipation (P_D)	200 mW - supports continuous operation in thermally constrained PCB layouts
Package	SOT363 - 6-pin, 2.1 mm × 1.3 mm footprint ideal for automated placement and high-density routing
AEC-Q101 Qualified	Yes - validated for automotive applications including engine control and body electronics

Pinout & Package

Package: SOT363 - ultra-small surface-mount plastic case (2.10 × 1.30 × 0.90 mm), UL 94V-0 rated, moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
A1	Anode of Diode 1	Connects to cathode of external series resistor for Zener biasing; referenced to ground or lower potential rail
A2	Anode of Diode 2	Independent anode node - enables separate biasing for dual-voltage clamping or reference generation
A3	Anode of Diode 3	Third isolated anode terminal - allows triple-rail protection without shared current paths
C1	Cathode of Diode 1	Provides regulated 13 V output when A1 is grounded; used for precision voltage reference
C2	Cathode of Diode 2	Second independent cathode - supports redundant clamping or differential reference topologies
C3	Cathode of Diode 3	Third cathode node - enables simultaneous protection of three signal lines or supply rails

Key Features

Feature	Design Value
Triple isolated Zener diodes	Three independent 13 V regulation elements in one package - eliminates board space and assembly cost vs. discrete solutions
AEC-Q101 qualification	Validated for automotive-grade temperature cycling, humidity, and mechanical shock - suitable for under-hood ECU use
Low Zener impedance (13 Ω)	Minimizes output voltage deviation under varying load currents - critical for ADC reference stability
Halogen- and antimony-free "Green" construction	Meets strict environmental compliance (Br+Cl <1500 ppm, Sb <1000 ppm) - required for EU automotive OEMs

Applications

Automotive Engine Control Unit (ECU)

Industrial Sensor Signal Conditioning

Use Scenario: Regulating reference voltage for analog front-end circuitry in diesel ECU modules exposed to wide temperature swings.

IC Role / Device Role / Timing Role: Zener diode array provides stable 13 V reference for op-amp biasing and ADC input scaling.

Use Value: AEC-Q101 qualification and –65 °C to +150 °C operation ensure long-term accuracy across thermal cycles without calibration drift.

Use Scenario: Clamping transient overvoltages on 4–20 mA current loop inputs in factory automation PLC modules.

IC Role / Device Role / Timing Role: Three independent Zeners protect analog input channels from ESD and inductive kickback.

Use Value: Isolated terminals prevent cross-channel interference during surge events, preserving measurement integrity across all channels.

USB-C Power Delivery Interface

Medical Diagnostic Equipment Power Rails

Use Scenario: Providing precise 13 V clamp for VBUS monitoring circuitry in USB-C PD sink controllers.

IC Role / Device Role / Timing Role: Acts as overvoltage protector for MCU GPIO pins interfacing with VBUS sensing resistors.

Use Value: Low 0.5 µA leakage at 9.9 V avoids loading the sense divider, maintaining measurement resolution down to ±1%.

Use Scenario: Generating stable bias voltages for low-noise amplifiers in portable ultrasound probe front-ends.

IC Role / Device Role / Timing Role: Supplies clean 13 V reference to op-amps driving piezoelectric transducers.

Use Value: 13 Ω Zener impedance ensures <10 mV output variation under 1 mA load changes - critical for SNR preservation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener diode array applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C13-7-F	Single 13 V Zener in SOT23; no multi-diode integration	Requires three separate placements for equivalent functionality; higher assembly cost and board area	Select when only one Zener is needed or when SOT23 footprint compatibility is mandatory
MMBZ5243BS-7-F	Same electrical specs but in SOT323 (single-diode variant); no triple-array configuration	Lacks integrated isolation - unsuitable for multi-rail clamping without external layout separation	Choose only if triple-diode integration is unnecessary and smaller single-diode footprint is prioritized

Compared with BZX84-C13-7-F and MMBZ5243BS-7-F, MMBZ5243BTS-7-F uniquely delivers three isolated 13 V Zeners in one SOT363 package - reducing component count by 67%, minimizing PCB area by >40%, and eliminating inter-diode coupling risks in noise-sensitive analog systems.

Availability

MMBZ5243BTS-7-F is available at Aetrix Electronics and suitable for automotive engine control units, industrial sensor signal conditioners, and USB-C power delivery interfaces requiring stable component supply and AEC-Q101-compliant performance.

Supply support for MMBZ5243BTS-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 MMBZ52xxBTS series of triple Zener diode arrays, engineered specifically for high-reliability, space-constrained voltage regulation and transient suppression in automotive and industrial electronics.

FAQ

What is the maximum power dissipation for MMBZ5243BTS-7-F?

The absolute maximum power dissipation is 200 mW at +25 °C ambient, derating linearly above 25 °C at 0.8 mW/°C per the published derating curve. This limit assumes mounting on FR4 PCB with Diodes Incorporated's recommended pad layout (AP02001), and accounts for thermal resistance of 625 °C/W junction-to-ambient.

How are the three Zener diodes arranged internally?

The device contains three fully isolated p-n junctions sharing no internal connection - each has its own anode (A1/A2/A3) and cathode (C1/C2/C3). There is no common cathode or anode; all six terminals are electrically independent, enabling flexible biasing configurations across separate signal paths or supply rails.

Is MMBZ5243BTS-7-F suitable for bidirectional ESD protection?

No - this is a unidirectional Zener diode array optimized for forward-biased anode-to-cathode conduction and reverse-biased Zener breakdown. For bidirectional ESD protection, TVS diodes such as D3V3F1U2SO-7 or SP1003-01UTG are required; MMBZ5243BTS-7-F provides only clamping in one polarity direction per diode.

What does the "-7-F" suffix indicate in the part number?

The "-7-F" suffix denotes tape-and-reel packaging: 3000 units per reel, with lead-free (matte tin) plating and RoHS/REACH compliance. The "7" specifies the tape-and-reel format, and "F" indicates full compliance with Diodes Incorporated's green manufacturing standards, including halogen and antimony restrictions.

MMBZ5243BTS-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:: 3 Independent

Voltage - Zener (Nom) (Vz):: 13 V

Tolerance:: ±5%

Power - Max:: 200 mW

Impedance (Max) (Zzt):: 13 Ohms

Current - Reverse Leakage @ Vr:: 500 nA @ 9.9 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

MMBZ5243BTS-7-F FAQ

1.How can I place an order for MMBZ5243BTS-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for MMBZ5243BTS-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 MMBZ5243BTS-7-F reliable?

The price and inventory of MMBZ5243BTS-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 MMBZ5243BTS-7-F is usually 5 days.

3.What payment methods are accepted for MMBZ5243BTS-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5243BTS-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MMBZ5243BTS-7-F?

MMBZ5243BTS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MMBZ5243BTS-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 MMBZ5243BTS-7-F?

For technical support, including MMBZ5243BTS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5243BTS-7-F requirements.

6.How does Aetrix verify that MMBZ5243BTS-7-F is sourced from the original manufacturer or authorized distributors?

All MMBZ5243BTS-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 MMBZ5243BTS-7-F meets industry standards.

7.What is the process for return or replacement of MMBZ5243BTS-7-F?

All MMBZ5243BTS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5243BTS-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 MMBZ5243BTS-7-F part is unused and in its original packaging.

Return procedure for MMBZ5243BTS-7-F:

1.Submit a request within 90 days.

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

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