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Diodes Incorporated MMBZ5223BS-7
- Part No.:
- MMBZ5223BS-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
MMBZ5223BS-7.pdf
- Description:
- DIODE ZENER ARRAY 2.7V SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:9,820
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Product details
Overview
MMBZ5223BS-7 from Diodes Incorporated is a dual isolated 2.7 V Zener diode pair in SOT-363 package, rated for 200 mW total power dissipation, 30 Ω zener impedance at 20 mA test current, and 75 µA reverse leakage at 1.0 V reverse bias; used for precision voltage reference and overvoltage clamping in space-constrained analog signal conditioning circuits.
For engineers reviewing the MMBZ5223BS-7 datasheet, MMBZ5223BS-7 pinout, MMBZ5223BS-7 application, or MMBZ5223BS-7 equivalent, key selection criteria include nominal zener voltage tolerance (±4.4%), thermal resistance (625 °C/W), dual-diode isolation, SOT-363 footprint compatibility, and RoHS-compliant matte tin plating.
Technical Context
This device integrates two electrically isolated Zener diodes on a single planar silicon die within an ultra-small surface-mount package. Each diode operates independently with identical 2.7 V nominal breakdown voltage, 20 mA test current, and 30 Ω dynamic impedance at 1 kHz.
The dual configuration supports bidirectional clamping or dual-rail reference generation without cross-coupling. Thermal derating follows a linear curve from 200 mW at 25°C ambient to zero at 150°C, based on FR4 PCB mounting with recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 2.7 V ±4.4% (2.57–2.84 V at 20 mA); defines stable reference/clamp threshold under nominal bias |
| Power Dissipation | 200 mW total (per device); limits continuous DC or low-duty-cycle transient energy handling |
| Zener Impedance | 30 Ω at 20 mA, 1 kHz; determines voltage regulation stiffness under varying load current |
| Reverse Leakage | 75 µA max at 1.0 V reverse bias; sets minimum off-state current in clamp applications |
| Thermal Resistance | 625 °C/W junction-to-ambient (FR4 board); governs temperature rise under full power operation |
| Operating Temperature | −65°C to +150°C; enables use in extended industrial and automotive under-hood environments |
Pinout & Package
Package: SOT-363 - ultra-small plastic surface-mount case (2.20 × 1.35 × 0.95 mm), UL 94V-0 rated, moisture sensitivity level 1, lead-free matte tin plating over Alloy 42 leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| C1 | Anode of Diode 1 | Forward-biased terminal for Zener 1; connects to cathode of external series resistor in shunt regulator |
| A1 | Cathode of Diode 1 | Breakdown terminal for Zener 1; provides regulated 2.7 V reference when reverse-biased |
| C2 | Anode of Diode 2 | Independent anode for second Zener; enables dual-rail or bidirectional protection |
| A2 | Cathode of Diode 2 | Independent cathode for second Zener; electrically isolated from Diode 1 per datasheet schematic |
| NC | No Connect | Internally unconnected terminal; must remain floating or grounded per layout guidelines |
| NC | No Connect | Second internally unconnected terminal; no electrical function or internal bond wire |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated Zener diodes | Enables independent voltage reference or clamping on two signal paths without coupling or crosstalk |
| 200 mW total power rating | Supports compact, low-power analog monitoring and protection without heatsinking on standard FR4 |
| SOT-363 ultra-small package | Reduces PCB area by >50% vs. SOIC-8 equivalents; compatible with high-density automated placement |
| Lead-free / RoHS compliant | Meets global environmental regulations; matte tin finish ensures solderability and intermetallic reliability |
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. IC Role / Device Role / Timing Role: Dual Zener provides matched 2.7 V rail-to-rail clamping on differential input lines while maintaining isolation between channels. Use Value: Prevents ADC saturation during line transients without introducing common-mode error due to dual-isolation architecture. | Use Scenario: Protecting USB 2.0 D+ and D− data lines from ±8 kV contact ESD per IEC 61000-4-2. IC Role / Device Role / Timing Role: Each Zener clamps one data line to ground via series resistor; NC pins allow routing flexibility in tight layouts. Use Value: Achieves sub-1 ns response time and <10 pF line capacitance-critical for maintaining USB 480 Mbps signal integrity. |
| Automotive Body Control Module | Medical Wearable Battery Monitor |
Use Scenario: Regulating 2.7 V supply for CAN transceiver bias in 12 V vehicle subsystems with load dump transients. IC Role / Device Role / Timing Role: One Zener regulates local LDO input; second serves as overvoltage detector triggering shutdown logic. Use Value: Dual functionality eliminates need for separate reference and monitor ICs, reducing BOM count and board space. | Use Scenario: Providing stable voltage reference for lithium-ion cell voltage measurement in sub-gram wearable patches. IC Role / Device Role / Timing Role: Zener pair supplies ratiometric reference to 12-bit ADC while rejecting battery ripple up to 100 kHz. Use Value: 75 µA leakage ensures <0.1% error contribution at 1 µA sensor bias currents-essential for microamp-level power budgets. |
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-C2V7LT1G | Single 2.7 V Zener in SOT-23; no dual isolation; 30 Ω ZZT, 100 µA IR @ 1 V | Requires two devices for dual-rail use; higher leakage increases quiescent error in low-current sensors | Select when only one reference rail is needed and board area allows discrete placement of two units |
| MMBZ5225BS-7 | 3.0 V nominal Zener; same SOT-363 package, 200 mW rating, and dual-isolation topology | Used where higher reference voltage improves noise margin against 3.3 V logic thresholds | Select when system requires tighter regulation above 2.84 V upper limit of MMBZ5223BS-7 |
Compared with BZX84-C2V7LT1G and MMBZ5225BS-7, the MMBZ5223BS-7 uniquely delivers matched 2.7 V dual-clamp capability in minimal area, enabling single-component solutions for differential signal protection and dual-supply monitoring where voltage tolerance and leakage are critical.
Availability
MMBZ5223BS-7 is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB port protection, automotive body control modules, and medical wearable battery monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MMBZ5223BS-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 portfolio, engineered specifically for space-constrained, low-power voltage reference and transient suppression in portable, automotive, and industrial electronics.
FAQ
What is the maximum reverse voltage that can be continuously applied to MMBZ5223BS-7 without breakdown?
The absolute maximum reverse voltage before breakdown is defined by its nominal zener voltage range: 2.57 V to 2.84 V at 20 mA test current. Applying more than 2.84 V continuously will cause conduction; for safe non-conducting operation, reverse bias must remain below 1.0 V, where leakage stays ≤75 µA per datasheet specifications.
Can both Zener diodes in MMBZ5223BS-7 share the same 200 mW power rating?
No-the 200 mW rating applies to the entire device. Power must be allocated between both diodes; simultaneous full-power operation of both Zeners would exceed thermal limits. Derating is required if both are active, with total dissipation capped at 200 mW regardless of distribution across C1/A1 and C2/A2 terminals.
Is MMBZ5223BS-7 suitable for bidirectional ESD protection on a single signal line?
Yes-by connecting A1 and C2 together as the signal node, and grounding C1 and A2, the device forms a symmetrical 2.7 V clamp. This configuration leverages both Zeners back-to-back to limit voltage excursions to ±2.7 V, meeting IEC 61000-4-2 Level 4 requirements when paired with appropriate series impedance.
Does the SOT-363 package of MMBZ5223BS-7 support reflow soldering per J-STD-020?
Yes-the device is qualified for lead-free reflow per J-STD-020D with peak temperature up to 260°C and moisture sensitivity level 1, meaning it may be stored indefinitely at ≤30°C/60% RH without baking prior to assembly. Terminal plating meets MIL-STD-202 Method 208 for solderability.
MMBZ5223BS-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):
- 2.7 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 30 Ohms
- Current - Reverse Leakage @ Vr:
- 75 µA @ 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
MMBZ5223BS-7 FAQ
1.How can I place an order for MMBZ5223BS-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5223BS-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 MMBZ5223BS-7 reliable?
The price and inventory of MMBZ5223BS-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ5223BS-7 is usually 5 days.
3.What payment methods are accepted for MMBZ5223BS-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5223BS-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5223BS-7?
MMBZ5223BS-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5223BS-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 MMBZ5223BS-7?
For technical support, including MMBZ5223BS-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5223BS-7 requirements.
6.How does Aetrix verify that MMBZ5223BS-7 is sourced from the original manufacturer or authorized distributors?
All MMBZ5223BS-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 MMBZ5223BS-7 meets industry standards.
7.What is the process for return or replacement of MMBZ5223BS-7?
All MMBZ5223BS-7 units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5223BS-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 MMBZ5223BS-7 part is unused and in its original packaging.
Return procedure for MMBZ5223BS-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ5223BS-7 Tags
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Diodes Incorporated
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