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Diodes Incorporated MMBZ5242BTS-7-F
- Part No.:
- MMBZ5242BTS-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
MMBZ5242BTS-7-F.pdf
- Description:
- DIODE ZENER ARRAY 12V SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:8,363
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Product details
Overview
MMBZ5242BTS-7-F from Diodes Incorporated is a triple-surface-mount Zener diode array in SOT363 package, providing three isolated 12 V ±5% Zener references with 20 mA test current, 30 Ω dynamic impedance at 20 mA, and 1.0 µA reverse leakage at 9.1 V. It delivers precision voltage clamping for power rail protection and signal-level regulation in compact automotive and industrial PCBs.
For engineers reviewing the MMBZ5242BTS-7-F datasheet, MMBZ5242BTS-7-F pinout, MMBZ5242BTS-7-F application, or MMBZ5242BTS-7-F equivalent, key selection criteria include nominal Zener voltage (12 V), maximum power dissipation (200 mW), thermal resistance (625 °C/W), and AEC-Q101 qualification for high-reliability environments.
Technical Context
This device integrates three independent Zener junctions in a single ultra-small SOT363 package, enabling space-constrained designs requiring multiple stable reference or clamp points without discrete placement overhead. Each diode operates with identical electrical specs and shares only mechanical mounting - no internal coupling or shared cathode/anode.
Designed for automated SMT assembly, it supports lead-free reflow profiles per J-STD-020D Level 1 moisture sensitivity, with matte tin-plated Alloy 42 leads and UL 94V-0 mold compound. Its 0.006 g mass and 2.10 mm × 1.30 mm footprint optimize board real estate in multi-rail sensor modules and ECU power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12 V nominal, 11.4–12.6 V range at IZT = 20 mA - ensures stable clamping within ±5% tolerance under standard bias conditions. |
| Power Dissipation (PD) | 200 mW at TA = 25°C - defines maximum continuous DC power handling before thermal derating begins. |
| Zener Impedance (ZZT) | 30 Ω at IZT = 20 mA - determines voltage regulation stiffness; lower values reduce output variation under load transients. |
| Reverse Leakage (IR) | 1.0 µA at VR = 9.1 V - confirms low standby current draw critical for battery-backed or low-power monitoring circuits. |
| Thermal Resistance (RθJA) | 625 °C/W - quantifies junction-to-ambient temperature rise per watt; used to calculate max operating ambient for given power. |
| Operating Temperature | −65°C to +150°C - supports deployment in under-hood automotive, industrial motor drives, and outdoor power electronics. |
Pinout & Package
Package: SOT363 - ultra-small surface-mount plastic case (2.10 mm × 1.30 mm × 0.95 mm), UL 94V-0 rated, with six terminals in dual-row configuration. Three anode-cathode pairs are fully isolated and internally unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode of Diode 1 | Input terminal for first Zener; connects to node requiring clamping or reference relative to its cathode (C1). |
| C1 | Cathode of Diode 1 | Reference/return path for Diode 1; typically tied to system ground or regulated rail for voltage stabilization. |
| A2 | Anode of Diode 2 | Independent input for second Zener; electrically isolated from A1/C1 and A3/C3 - enables separate rail protection. |
| C2 | Cathode of Diode 2 | Return path for Diode 2; must be routed separately unless intentionally commoned in circuit design. |
| A3 | Anode of Diode 3 | Third isolated Zener input; supports redundancy, multi-voltage sensing, or differential clamp configurations. |
| C3 | Cathode of Diode 3 | Third independent return; allows full functional separation across all three Zeners in safety-critical or fault-tolerant systems. |
Key Features
| Feature | Design Value |
|---|---|
| Triple isolated Zener structure | Enables three independent voltage reference or clamp functions in one footprint - reduces component count and layout complexity by 66% vs. discrete diodes. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, ADAS, and body electronics. |
| Lead-free and halogen-free | Meets RoHS 2 (2011/65/EU) and Diodes Inc.'s "Green" definition (<900 ppm Br, <900 ppm Cl, <1000 ppm Sb) - compliant with global environmental regulations. |
| SOT363 package with Level 1 MSL | Supports standard reflow soldering without baking; eliminates moisture-related popcorning risk during manufacturing. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Protecting microcontroller I/O pins and ADC inputs from transient overvoltage on 12 V supply rails and CAN bus interfaces. IC Role / Device Role / Timing Role: Voltage clamp and reference stabilizer - each Zener independently guards a distinct analog or digital signal path. Use Value: Prevents latch-up and damage during load dump events while maintaining <±5% reference accuracy across −40°C to +125°C operating range. |
Use Scenario: Providing stable 12 V reference for op-amp biasing and RTD bridge excitation in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision voltage reference source - leverages matched Zener characteristics across three channels for multi-channel calibration. Use Value: Enables <0.5% total unadjusted error (TUE) in 16-bit data acquisition systems without external trimming components. |
| Consumer Power Adapter Feedback Loop | Medical Diagnostic Equipment Power Monitoring |
Use Scenario: Secondary-side voltage sensing in flyback converters for USB-C PD adapters, where tight output regulation is required across variable loads. IC Role / Device Role / Timing Role: Feedback reference element - one Zener sets output voltage threshold; others provide auxiliary rail supervision. Use Value: Achieves ±1% output regulation stability over line/load/temperature with minimal BOM cost increase versus single-diode solutions. |
Use Scenario: Monitoring isolated DC-DC converter outputs in portable ultrasound and patient monitor power subsystems. IC Role / Device Role / Timing Role: Redundant overvoltage detector - dual Zeners cross-check critical 5 V and 3.3 V rails to trigger fail-safe shutdown. Use Value: Meets IEC 60601-1 creepage/clearance requirements via physical isolation and supports dual-channel fault detection architecture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5242BS-7-F | Same Zener voltage (12 V), but dual-diode array (SOT-23-6); lacks third Zener element. | Not suitable for triple-rail designs; requires two devices to match channel count of MMBZ5242BTS-7-F. | Select when only two independent clamps are needed and board area permits larger pitch spacing. |
| BZX84-C12LT1G | Single 12 V Zener in SOT-23; no integrated multi-diode structure; higher ZZT (40 Ω) and lower PD (350 mW). | Requires three discrete placements and routing; increases assembly cost and potential mismatch between units. | Choose only if legacy SOT-23 footprint compatibility is mandatory and thermal margin exceeds 200 mW requirement. |
Compared with MMBZ5242BS-7-F and BZX84-C12LT1G, the MMBZ5242BTS-7-F uniquely delivers three matched, isolated 12 V Zeners in the smallest possible footprint (SOT363), minimizing inter-device parameter variation and maximizing PCB density for multi-rail protection schemes.
Availability
MMBZ5242BTS-7-F is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLC analog input modules, and medical diagnostic equipment requiring stable component supply with AEC-Q101 compliance and long-term lifecycle support.
Supply support for MMBZ5242BTS-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 consumer markets since 1960.
This part belongs to the MMBZ52xxBTS series of triple Zener arrays designed specifically for space-constrained, high-volume applications demanding AEC-Q101 qualification and green material compliance.
FAQ
What is the maximum surge power rating for MMBZ5242BTS-7-F?
Per Figure 4 in DS30184 Rev. 13-2, the device supports up to 1000 W peak non-repetitive surge power for 1 ms pulses. This rating assumes proper PCB thermal relief and applies only to short-duration transients such as ESD or inductive switching spikes - not continuous operation.
Can MMBZ5242BTS-7-F be used in series or parallel configurations?
No - the three Zeners are electrically isolated but share a common package substrate; paralleling them risks thermal runaway due to mismatched Zener voltages, and series connection is physically impossible without external wiring. Each diode must be used independently with its own anode-cathode loop.
Is the SOT363 package compatible with standard pick-and-place equipment?
Yes - the SOT363 outline meets JEDEC MO-203-DA standards, with 0.65 mm lead pitch and defined fiducial locations. Diodes Incorporated provides recommended pad layout AP02001 and package drawing AP02002 to ensure reliable placement and solder joint formation.
How does the 12 V Zener voltage tolerance affect circuit accuracy?
The ±5% tolerance (11.4–12.6 V) directly impacts clamping threshold and reference stability. For applications requiring tighter regulation, external trimming or feedback compensation is necessary - the device itself provides no adjustability or temperature compensation beyond its specified drift behavior.
MMBZ5242BTS-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):
- 12 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 9.1 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
MMBZ5242BTS-7-F FAQ
1.How can I place an order for MMBZ5242BTS-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5242BTS-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 MMBZ5242BTS-7-F reliable?
The price and inventory of MMBZ5242BTS-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 MMBZ5242BTS-7-F is usually 5 days.
3.What payment methods are accepted for MMBZ5242BTS-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5242BTS-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5242BTS-7-F?
MMBZ5242BTS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5242BTS-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 MMBZ5242BTS-7-F?
For technical support, including MMBZ5242BTS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5242BTS-7-F requirements.
6.How does Aetrix verify that MMBZ5242BTS-7-F is sourced from the original manufacturer or authorized distributors?
All MMBZ5242BTS-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 MMBZ5242BTS-7-F meets industry standards.
7.What is the process for return or replacement of MMBZ5242BTS-7-F?
All MMBZ5242BTS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5242BTS-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 MMBZ5242BTS-7-F part is unused and in its original packaging.
Return procedure for MMBZ5242BTS-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ5242BTS-7-F Tags
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