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Diodes Incorporated MMBZ5233BS-7
- Part No.:
- MMBZ5233BS-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
MMBZ5233BS-7.pdf
- Description:
- DIODE ZENER ARRAY 6V SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:5,729
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Product details
Overview
MMBZ5233BS-7 from Diodes Incorporated is a dual isolated 6.0 V ±5% Zener diode pair in SOT-363 package, rated for 200 mW power dissipation, 7 Ω zener impedance at 20 mA, and 5.0 μA reverse leakage at 3.5 V, used for precision voltage reference and overvoltage clamping in space-constrained analog signal conditioning circuits.
For engineers reviewing the MMBZ5233BS-7 datasheet, MMBZ5233BS-7 pinout, MMBZ5233BS-7 application, or MMBZ5233BS-7 equivalent, key selection criteria include nominal zener voltage tolerance (±5%), low dynamic impedance (7 Ω), dual-diode isolation, SOT-363 thermal resistance (625 °C/W), and RoHS-compliant matte tin plating.
Technical Context
This device integrates two electrically isolated Zener diodes on a single planar silicon die, enabling bidirectional voltage regulation or independent reference generation within one ultra-small surface-mount footprint. Each diode operates with a test current of 20 mA and exhibits tight 5.70–6.30 V breakdown range at 25°C.
The SOT-363 package supports automated placement and reflow soldering, with UL 94V-0 mold compound and moisture sensitivity level 1. Thermal performance is specified for FR4 PCB mounting using Diodes Inc.'s recommended pad layout (AP02001).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 6.0 V nominal, 5.70–6.30 V min/max - ensures stable reference under ±5% tolerance at 20 mA test current |
| Power Dissipation | 200 mW - defines maximum continuous DC power handling on standard FR4 board |
| Zener Impedance | 7 Ω at IZT = 20 mA - enables low-voltage droop during transient load changes |
| Reverse Leakage | 5.0 μA at VR = 3.5 V - guarantees minimal quiescent current in standby clamp configurations |
| Thermal Resistance | 625 °C/W junction-to-ambient - determines temperature rise per milliwatt under natural convection |
| Package | SOT-363 - 6-pin ultra-small outline with dual isolated anode/cathode terminals |
Pinout & Package
SOT-363 is a 6-pin, dual-row surface-mount plastic package with dual isolated Zener structures. Pin 1 (C1) and Pin 2 (A1) form the first Zener (cathode/anode); Pin 3 (C2) and Pin 4 (A2) form the second Zener; Pins 5 and 6 are no-connect (NC).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (C1) | Cathode of Zener 1 | Connected to higher-potential node for forward-biased clamping or reverse-biased regulation |
| Pin 2 (A1) | Anode of Zener 1 | Reference or ground return path for first Zener element |
| Pin 3 (C2) | Cathode of Zener 2 | Independent cathode terminal enabling separate voltage reference or bidirectional protection |
| Pin 4 (A2) | Anode of Zener 2 | Isolated anode node allowing differential or dual-rail regulation schemes |
| Pins 5 & 6 | No Connect (NC) | Unbonded internal terminals - must remain unconnected in PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated Zener elements | Enables independent voltage references or complementary clamping without shared substrate coupling |
| Planar die construction | Ensures repeatable breakdown characteristics and improved long-term stability vs. diffused junctions |
| 200 mW total power rating | Supports moderate-current regulation in portable and low-power sensor interface designs |
| Lead-free / RoHS compliant | Meets global environmental compliance requirements with matte tin finish over Alloy 42 leadframe |
Applications
| Industrial Sensor Signal Conditioning | USB Port ESD Clamp |
|---|---|
Use Scenario: Stabilizing ADC reference voltage in 4–20 mA loop-powered transmitters operating across -40°C to +85°C ambient. IC Role / Device Role / Timing Role: Dual-Zener provides ratiometric reference for op-amp gain-setting and overvoltage protection on supply rail. Use Value: Tight 6.0 V ±5% tolerance and 7 Ω impedance maintain <0.5% reference error under 1–5 mA load variation. | Use Scenario: Protecting USB 2.0 D+ and D− lines from ±8 kV contact ESD per IEC 61000-4-2. IC Role / Device Role / Timing Role: Bidirectional clamping diode pair shunts transient energy to VBUS and GND rails simultaneously. Use Value: Dual-isolation prevents cross-talk between data lines while maintaining <1 ns response time due to low capacitance (<2 pF typical). |
| Low-Power IoT Node Voltage Supervisor | Automotive Body Control Module Reset Circuit |
Use Scenario: Monitoring 3.3 V system rail in battery-operated BLE sensor nodes with wake-on-voltage-drop functionality. IC Role / Device Role / Timing Role: Zener-based comparator input bias network generating precise hysteresis thresholds. Use Value: 5.0 μA leakage at 3.5 V ensures <100 nA additional current draw in deep sleep mode. | Use Scenario: Generating clean 5.0 V reset threshold for microcontroller supervision in 12 V automotive subsystems. IC Role / Device Role / Timing Role: Clamped reference source feeding RC delay network into dedicated reset IC input. Use Value: 625 °C/W thermal resistance allows operation up to +125°C junction temperature with no derating below 150 mW. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C6V2-7-F | Single 6.2 V Zener, SOT-23, 350 mW rating, 10 Ω ZZT | Lacks dual isolation; higher power but no second independent Zener | Select when only one reference is needed and higher surge tolerance is required |
| MMBZ5234BS-7-F | 6.2 V nominal (5.89–6.51 V), same SOT-363 package and dual structure | 0.2 V higher nominal voltage; identical pinout and thermal behavior | Choose for marginally higher clamping threshold where 6.2 V improves noise immunity |
Compared with BZX84-C6V2-7-F and MMBZ5234BS-7-F, MMBZ5233BS-7 offers tighter 6.0 V regulation with lower dynamic impedance (7 Ω vs. 10 Ω) and dual-element isolation-critical for differential sensing and multi-rail protection where channel crosstalk must be avoided.
Availability
MMBZ5233BS-7 is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB ESD protection, low-power IoT voltage supervision, and automotive body control module reset circuits requiring stable component supply and full traceability.
Supply support for MMBZ5233BS-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The MMBZ52xxBS series belongs to Diodes' precision Zener diode product line, engineered specifically for high-reliability voltage reference and clamping in miniaturized consumer, industrial, and automotive electronics.
FAQ
What is the maximum reverse voltage this device can withstand before breakdown?
The MMBZ5233BS-7 has a nominal Zener voltage of 6.0 V with a guaranteed range of 5.70 V to 6.30 V at 20 mA test current. Its reverse breakdown is sharply defined within this band; operation above 6.30 V under sustained DC conditions exceeds specification and risks thermal runaway if power dissipation exceeds 200 mW.
Can both Zener diodes be used simultaneously in the same circuit?
Yes - the two Zeners are fully isolated, allowing simultaneous use for independent functions such as dual-rail clamping (e.g., VCC and VIO lines) or complementary reference generation. Pins 1/2 and 3/4 operate as separate cathode/anode pairs; no internal connection exists between them.
Is the SOT-363 package compatible with standard reflow profiles?
Yes - the SOT-363 package is qualified for lead-free reflow per J-STD-020D Level 1 moisture sensitivity. Diodes Inc. specifies peak temperatures up to 260°C for 30 seconds, with ramp rates and soak profiles aligned to IPC/JEDEC standards for SnAgCu solder paste.
Does this part meet AEC-Q200 stress testing requirements for automotive use?
No - the MMBZ5233BS-7 is not AEC-Q200 qualified. While it operates across -65°C to +150°C and is RoHS-compliant, Diodes Inc. does not list it in their AEC-Q200-certified portfolio. For automotive applications requiring qualification, consider the AZ23C6V2 or BZX84-A6V2 series.
MMBZ5233BS-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Configuration:
- 2 Independent
- Voltage - Zener (Nom) (Vz):
- 6 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 7 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 3.5 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
MMBZ5233BS-7 FAQ
1.How can I place an order for MMBZ5233BS-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5233BS-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 MMBZ5233BS-7 reliable?
The price and inventory of MMBZ5233BS-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ5233BS-7 is usually 5 days.
3.What payment methods are accepted for MMBZ5233BS-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5233BS-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5233BS-7?
MMBZ5233BS-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5233BS-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 MMBZ5233BS-7?
For technical support, including MMBZ5233BS-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5233BS-7 requirements.
6.How does Aetrix verify that MMBZ5233BS-7 is sourced from the original manufacturer or authorized distributors?
All MMBZ5233BS-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 MMBZ5233BS-7 meets industry standards.
7.What is the process for return or replacement of MMBZ5233BS-7?
All MMBZ5233BS-7 units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5233BS-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 MMBZ5233BS-7 part is unused and in its original packaging.
Return procedure for MMBZ5233BS-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ5233BS-7 Tags
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Diodes Incorporated
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