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Diodes Incorporated MMBZ5229BTS-7-F
- Part No.:
- MMBZ5229BTS-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
MMBZ5229BTS-7-F.pdf
- Description:
- DIODE ZENER ARRAY 4.3V SOT363
- Quantity:
- Payment:
- Shipping:
Inventory:2,972
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Product details
Overview
MMBZ5229BTS-7-F from Diodes Incorporated is a triple-surface-mount Zener diode array in SOT363 package, providing three isolated 4.3 V ±5% Zener references with 20 mA test current, 22 Ω dynamic impedance at 20 mA, and 5.0 µA max reverse leakage at 1.0 V. It delivers precision voltage clamping and regulation in compact power management circuits for automotive ECUs and industrial sensor interfaces.
For engineers reviewing the MMBZ5229BTS-7-F datasheet, MMBZ5229BTS-7-F pinout, MMBZ5229BTS-7-F application, or MMBZ5229BTS-7-F equivalent, key selection criteria include Zener voltage tolerance (±5%), low thermal resistance (625 °C/W), AEC-Q101 qualification, triple-diode isolation, and SOT363 footprint compatibility with high-density PCB layouts.
Technical Context
This device integrates three electrically isolated Zener diodes in a single ultra-small SOT363 package, enabling independent voltage reference or clamping functions per channel without cross-talk. Each diode is characterized at IZT = 20 mA with VZ = 4.3 V (min 4.09 V, max 4.52 V) and exhibits ZZT = 22 Ω - critical for stable regulation under varying load conditions.
Thermal performance is defined by RθJA = 625 °C/W on FR4 board with recommended pad layout, and power dissipation is derated linearly above +25°C ambient per Fig. 1. The device operates across –65°C to +150°C and meets AEC-Q101 stress testing for automotive reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 4.3 V nominal, ±5% tolerance (4.09–4.52 V); ensures repeatable clamping threshold in noise-sensitive analog front-ends. |
| Test Current | 20 mA; standard operating point for specification compliance and stable Zener conduction under typical bias conditions. |
| Zener Impedance | 22 Ω at 20 mA; low dynamic resistance minimizes output voltage variation during transient load changes. |
| Reverse Leakage | 5.0 µA max at VR = 1.0 V; guarantees minimal standby current in always-on protection circuits. |
| Power Dissipation | 200 mW at TA = +25°C; defines maximum continuous DC power handling before thermal derating applies. |
| Package | SOT363; 6-pin, 2.1 mm × 1.3 mm footprint enabling high-density placement in space-constrained modules. |
| AEC-Q101 Qualified | Yes; validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness. |
Pinout & Package
Package: SOT363 - ultra-small plastic surface-mount case with 6 terminals, 0.006 g weight, UL 94V-0 flammability rating, and moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode of Diode 1 | Input terminal for first Zener diode; connects to cathode of external bias source for reverse-biased operation. |
| A2 | Anode of Diode 2 | Independent anode for second Zener; enables dual-rail clamping or separate reference generation. |
| A3 | Anode of Diode 3 | Third isolated anode; supports triple-voltage monitoring or redundancy schemes in safety-critical systems. |
| C1 | Cathode of Diode 1 | Output node for regulated 4.3 V reference; tied to load or feedback path in shunt regulator topologies. |
| C2 | Cathode of Diode 2 | Second regulated output; electrically isolated from C1/C3 to prevent ground-loop interference. |
| C3 | Cathode of Diode 3 | Third independent regulated output; allows simultaneous clamping of three signal lines or supply rails. |
Key Features
| Feature | Design Value |
|---|---|
| Triple isolated Zeners | Three independent 4.3 V Zener junctions in one SOT363 package - reduces component count and PCB area vs. discrete solutions. |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensors requiring extended temperature and reliability assurance. |
| Lead-free & green construction | Matte tin-plated Alloy 42 leadframe, halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb) - compliant with EU RoHS 2 and automotive environmental mandates. |
| Low thermal resistance | RθJA = 625 °C/W on FR4 with recommended pad layout - supports stable operation up to +150°C junction temperature. |
Applications
| Automotive Engine Control Unit (ECU) | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Voltage clamping of crankshaft position sensor analog outputs exposed to load-dump transients. IC Role / Device Role / Timing Role: Triple Zener array provides independent rail protection for sensor supply, signal return, and ADC reference inputs. Use Value: Prevents ADC saturation and microcontroller reset during 12 V system surges up to 40 V, leveraging 4.3 V clamping with 5 µA leakage at 1 V. | Use Scenario: Precision reference generation for 4–20 mA loop-powered pressure transmitters. IC Role / Device Role / Timing Role: Shunt regulator supplying stable 4.3 V to op-amp bias networks and RTD excitation circuitry. Use Value: Maintains <±0.5% output stability over –40°C to +125°C due to tight 4.3 V ±5% tolerance and low 22 Ω ZZT. |
| USB-C Power Delivery Interface | Medical Patient Monitor Analog Front-End |
Use Scenario: Overvoltage protection for CC1/CC2 configuration channel pins during hot-plug events. IC Role / Device Role / Timing Role: Fast-response Zener clamp absorbing 100 ns transients while preserving USB PD protocol integrity. Use Value: Limits CC line voltage to ≤4.52 V with 200 mW peak dissipation, preventing PHY damage without adding series resistance. | Use Scenario: ECG electrode bias voltage stabilization in portable patient monitors. IC Role / Device Role / Timing Role: Low-noise 4.3 V reference for instrumentation amplifier common-mode setting and ADC reference buffer. Use Value: Enables <10 µV RMS noise floor via 5 µA max IR at 1 V and 22 Ω ZZT, meeting IEC 60601-2-27 ECG accuracy requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5229BS-7-F | Same electrical specs but in SOT23-3 package (single Zener); no triple-diode integration. | Requires three separate devices and more PCB area; suitable only when isolation between channels is not required. | Select only if board space permits discrete placement and triple-channel coordination is unnecessary. |
| BZX84-C4V3LT1G | Single 4.3 V Zener in SOT23; 20 mA IZT, 22 Ω ZZT, but not AEC-Q101 qualified. | Lacks automotive qualification and triple-diode functionality; limited to commercial-grade consumer or industrial use. | Choose only for non-automotive designs where cost is prioritized over reliability and integration. |
Compared with MMBZ5229BS-7-F and BZX84-C4V3LT1G, the MMBZ5229BTS-7-F uniquely delivers triple-channel isolation, AEC-Q101 compliance, and SOT363 miniaturization - making it irreplaceable in space- and reliability-constrained automotive and medical signal chains.
Availability
MMBZ5229BTS-7-F is available at Aetrix Electronics and suitable for automotive engine control units, industrial sensor signal conditioning, and USB-C power delivery interface designs requiring stable component supply and long-term lifecycle support.
Supply support for MMBZ5229BTS-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, manufacturing, and sales operations across Asia, Europe, and North America.
The MMBZ52xxBTS series belongs to Diodes' AEC-Q101-qualified Zener diode portfolio, engineered specifically for automotive and industrial applications demanding high-reliability voltage reference and transient suppression in compact form factors.
FAQ
What is the maximum reverse leakage current for MMBZ5229BTS-7-F at its rated Zener voltage?
The maximum reverse leakage current is not specified at the Zener voltage (4.3 V); instead, the datasheet specifies 5.0 µA maximum at VR = 1.0 V. At VZ = 4.3 V, leakage remains well below 100 nA per diode - consistent with silicon Zener behavior in the breakdown region and confirmed by typical curves in DS30184 Rev. 13-2.
Can MMBZ5229BTS-7-F be used in parallel configurations for higher power handling?
No - the three Zeners share a common thermal environment in the SOT363 package, and paralleling them does not increase total power rating beyond 200 mW. Each diode must be operated within its individual 200 mW limit, and mismatched VZ tolerances (±5%) prevent current sharing; therefore, parallel use is not recommended or characterized.
Is the SOT363 package compatible with standard reflow profiles for lead-free soldering?
Yes - the device uses matte tin plating over Alloy 42 and is rated for peak reflow temperatures up to 260°C per J-STD-020D Level 1 moisture sensitivity. Its thermal resistance and package mass support standard IPC/JEDEC J-STD-020-compliant lead-free reflow profiles without delamination or solder joint failure.
Does MMBZ5229BTS-7-F support bidirectional transient voltage suppression?
No - it is a unidirectional Zener diode array optimized for reverse-bias clamping only. Forward conduction is limited to VF = 0.9 V at 10 mA and lacks symmetric TVS characteristics; for bidirectional protection, a dedicated TVS array such as D3V3F4U2LP-7 is required.
MMBZ5229BTS-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):
- 4.3 V
- Tolerance:
- ±5%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 22 Ohms
- Current - Reverse Leakage @ Vr:
- 5 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
MMBZ5229BTS-7-F FAQ
1.How can I place an order for MMBZ5229BTS-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ5229BTS-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 MMBZ5229BTS-7-F reliable?
The price and inventory of MMBZ5229BTS-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 MMBZ5229BTS-7-F is usually 5 days.
3.What payment methods are accepted for MMBZ5229BTS-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ5229BTS-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ5229BTS-7-F?
MMBZ5229BTS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ5229BTS-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 MMBZ5229BTS-7-F?
For technical support, including MMBZ5229BTS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ5229BTS-7-F requirements.
6.How does Aetrix verify that MMBZ5229BTS-7-F is sourced from the original manufacturer or authorized distributors?
All MMBZ5229BTS-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 MMBZ5229BTS-7-F meets industry standards.
7.What is the process for return or replacement of MMBZ5229BTS-7-F?
All MMBZ5229BTS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ5229BTS-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 MMBZ5229BTS-7-F part is unused and in its original packaging.
Return procedure for MMBZ5229BTS-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ5229BTS-7-F Tags
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