My Inquiry
My Account
Diodes Incorporated MMBZ5228BS-7-F
- Part No.:
- MMBZ5228BS-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
MMBZ5228BS-7-F.pdf
- Description:
- DIODE ZENER ARRAY 3.9V SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MMBZ5228BS-7-F from Diodes Incorporated is a dual isolated 3.9 V ±5% Zener diode pair in SOT-363 package, rated for 200 mW total power dissipation, 20 mA test current, and 23 Ω dynamic impedance at 1 kHz; used for precision voltage reference and overvoltage clamping in space-constrained analog signal conditioning circuits.
For engineers reviewing the MMBZ5228BS-7-F datasheet, MMBZ5228BS-7-F pinout, MMBZ5228BS-7-F application, or MMBZ5228BS-7-F equivalent, key selection criteria include nominal Zener voltage tolerance (±5%), low leakage (≤10 µA @ 1.0 V), thermal resistance (625 °C/W), and dual-diode isolation for bidirectional clamping or dual-reference designs.
Technical Context
This dual-Zener device integrates two electrically isolated 3.9 V Zener junctions in a single ultra-small SOT-363 package, enabling symmetrical clamping or independent reference generation without cross-coupling. Each diode operates with a specified 20 mA test current and exhibits 23 Ω typical impedance at 1 kHz.
It supports operation across –65 °C to +150 °C ambient temperature range and derates linearly above 25 °C per the published power derating curve. The device uses planar die construction and matte tin-plated Alloy 42 leads for RoHS-compliant solderability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 3.9 V nominal, 3.71–4.10 V min/max at 20 mA - defines stable clamping threshold for low-voltage rail protection |
| Power Dissipation | 200 mW total - limits continuous clamping energy in compact PCB layouts |
| Zener Impedance | 23 Ω at 1 kHz, 20 mA - determines voltage regulation stability under dynamic load transients |
| Reverse Leakage | ≤10 µA at 1.0 V - ensures minimal quiescent current in standby reference applications |
| Thermal Resistance | 625 °C/W junction-to-ambient - requires careful pad layout per AP02001 for reliable 200 mW operation |
| Package | SOT-363 - 6-pin ultra-small outline supporting automated placement and high-density routing |
Pinout & Package
SOT-363 package: 6-pin, dual-isolated configuration with common cathode/anode topology per internal schematic; molded plastic case (UL 94V-0), 0.006 g weight, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| C1 | Cathode of Zener 1 | Primary clamping node for first Zener junction; connects to protected signal line |
| A1 | Anode of Zener 1 | Reference/ground return path for Zener 1; electrically isolated from A2/C2 |
| C2 | Cathode of Zener 2 | Second independent clamping node; enables bidirectional or dual-rail protection |
| A2 | Anode of Zener 2 | Isolated return for Zener 2; allows separate biasing or grounding schemes |
| NC | No Connect | Internally unconnected pin; must remain floating per mechanical design |
| NC | No Connect | Second internally unconnected pin; no routing or termination required |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated Zener junctions | Enables independent voltage clamping on two signals or bidirectional protection without shared paths |
| 200 mW total power rating | Supports transient suppression in low-power sensor interfaces and I/O protection circuits |
| Planar die construction | Ensures consistent Zener voltage distribution and long-term stability under thermal cycling |
| Lead-free / RoHS-compliant | Meets global environmental compliance requirements for industrial and consumer PCB assembly |
Applications
| USB Interface Protection | Low-Voltage Sensor Reference |
|---|---|
Use Scenario: Clamping ESD transients on USB D+ and D− lines in portable host devices. IC Role / Device Role / Timing Role: Dual-Zener clamp providing symmetrical ±3.9 V rail-to-rail protection without signal distortion. Use Value: Prevents latch-up in USB transceivers by limiting voltage excursion to within safe operating range of 3.3 V I/O cells. | Use Scenario: Generating stable 3.9 V reference for 12-bit ADC biasing in battery-powered environmental sensors. IC Role / Device Role / Timing Role: Precision shunt reference supplying low-drift excitation voltage to bridge sensors. Use Value: Delivers <10 µA leakage and ±5% tolerance to maintain <0.5% full-scale error in analog front-end calibration. |
| Industrial IO Module Clamp | Automotive LIN Bus Termination |
Use Scenario: Protecting 24 V digital input channels against inductive kickback and surge events. IC Role / Device Role / Timing Role: High-reliability Zener clamp placed at connector interface to absorb repetitive 100 ns transients. Use Value: Withstands >1000 surges at 1 W peak (per Fig. 6) while maintaining 23 Ω impedance for fast response. | Use Scenario: Biasing LIN bus termination resistor network in automotive body control modules. IC Role / Device Role / Timing Role: Dual-Zener sets precise 3.9 V common-mode voltage for LIN physical layer compliance. Use Value: Ensures bus idle voltage remains within ISO 17987-2 specification (3.3–4.5 V) across temperature extremes. |
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-C3V9LT1G | Single 3.9 V Zener in SOT-23; no dual isolation; 30 Ω ZZT, 50 µA IR @ 1 V | Requires two devices for dual-clamp function; higher leakage limits low-power reference use | Select when only one clamping node is needed and board area permits discrete placement |
| MMBZ5228B-7-F | Same Zener voltage but single-diode variant in SOT-23; lacks second isolated junction | Cannot support bidirectional or dual-rail clamping without external duplication | Choose only if dual functionality is unnecessary and SOT-23 footprint is preferred |
Compared with BZX84-C3V9LT1G and MMBZ5228B-7-F, MMBZ5228BS-7-F uniquely delivers two isolated 3.9 V Zeners in one SOT-363, reducing component count and interconnect parasitics in compact dual-signal protection designs.
Availability
MMBZ5228BS-7-F is available at Aetrix Electronics and suitable for USB interface protection, low-voltage sensor reference, industrial IO module clamp, and automotive LIN bus termination requiring stable component supply and RoHS-compliant sourcing.
Supply support for MMBZ5228BS-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 industrial, computing, and consumer markets.
This device belongs to the MMBZ52xxBS series of dual Zener diodes designed specifically for space-constrained voltage regulation and bidirectional ESD protection in surface-mount applications.
FAQ
What is the maximum reverse leakage current for MMBZ5228BS-7-F?
The maximum reverse leakage current is 10 µA at 1.0 V reverse bias, measured at 25 °C ambient temperature. This value ensures minimal loading on low-power reference nodes and supports accurate voltage regulation in battery-operated systems where quiescent current matters.
Can MMBZ5228BS-7-F be used for bidirectional clamping?
Yes - its dual isolated Zener structure allows one diode to clamp positive transients (anode grounded, cathode to signal) and the other to clamp negative transients (cathode grounded, anode to signal), enabling true bidirectional protection on a single net without external polarity reversal circuitry.
What is the thermal resistance of MMBZ5228BS-7-F, and how does it affect layout?
Its junction-to-ambient thermal resistance is 625 °C/W on FR4 with recommended pad layout (AP02001). To sustain full 200 mW dissipation, designers must implement minimum copper area per Diodes' layout guidelines - undersized pads cause junction temperatures to exceed 150 °C even at room ambient.
How does the SOT-363 package differ from SOT-23 for this Zener series?
SOT-363 provides six terminals to accommodate two isolated Zener dies in one package, whereas SOT-23 supports only one diode. The SOT-363's dual-pin cathode/anode pairs enable independent routing, eliminating crosstalk and simplifying PCB layout for dual-function applications like differential clamping or split-rail references.
MMBZ5228BS-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):
- 3.9 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 23 Ohms
- Current - Reverse Leakage @ Vr:
- 10 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
MMBZ5228BS-7-F FAQ
1.How can I place an order for MMBZ5228BS-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5228BS-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 MMBZ5228BS-7-F reliable?
The price and inventory of MMBZ5228BS-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 MMBZ5228BS-7-F is usually 5 days.
3.What payment methods are accepted for MMBZ5228BS-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5228BS-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5228BS-7-F?
MMBZ5228BS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5228BS-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 MMBZ5228BS-7-F?
For technical support, including MMBZ5228BS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5228BS-7-F requirements.
6.How does Aetrix verify that MMBZ5228BS-7-F is sourced from the original manufacturer or authorized distributors?
All MMBZ5228BS-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 MMBZ5228BS-7-F meets industry standards.
7.What is the process for return or replacement of MMBZ5228BS-7-F?
All MMBZ5228BS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5228BS-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 MMBZ5228BS-7-F part is unused and in its original packaging.
Return procedure for MMBZ5228BS-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ5228BS-7-F Tags
-
MMBZ18VALT1G
onsemi
-
AZ23C18-7-F
Diodes Incorporated
-
MMBZ6V2ALT1G
onsemi
-
MMBZ5V6ALT1G
onsemi
-
MMBZ6V8ALT1G
onsemi
-
MMBZ5V6ALT3G
onsemi
-
MMBZ33VALT1G
onsemi
-
MMBZ9V1ALT1G
onsemi
-
MMBZ20VALT1G
onsemi
-
SZMMBZ27VALT1G
onsemi
-
MMBZ15VALT1G
onsemi
-
MMBZ12VALT1G
onsemi
Tech Hub
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
