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onsemi MMBZ15VDLT1
- Part No.:
- MMBZ15VDLT1
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- -
- Datasheet:
-
MMBZ15VDLT1.pdf
- Description:
- TVS ZENER DUAL CC 40W 15V SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:6,921
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Product details
Overview
MMBZ15VDLT1 from onsemi is a dual common-cathode SOT-23 Zener diode array designed for bidirectional or unidirectional transient voltage suppression in space-constrained interfaces. It delivers 15 V nominal breakdown voltage (VBR = 14.3–15.8 V @ IT = 1.0 mA), 40 W peak pulse power (1.0 ms), and ±30 kV IEC61000-4-2 contact ESD protection - deployed in USB, HDMI, and CAN bus line protection.
For engineers reviewing the MMBZ15VDLT1 datasheet, pinout, applications, or equivalent options, this page provides verified electrical parameters, validated dual-anode/cathode terminal roles, real-world clamping behavior (VC = 21.2 V @ IPP = 1.9 A), and direct alternatives with documented thermal and leakage differences.
Technical Context
This device integrates two monolithic silicon Zener junctions sharing a single cathode (Pin 3), enabling either independent unidirectional clamping on Pins 1–3 and 2–3, or combined bidirectional operation across Pins 1–2. Its SOT-23 package supports both configurations without external wiring changes.
It meets Class 3B HBM ESD rating (>16 kV) and IEC61000-4-2 Level 4 (±30 kV contact), with <100 nA reverse leakage at 12.8 V working voltage and a temperature coefficient of ±12 mV/°C - critical for stable clamping over −55 °C to +150 °C junction range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 14.3–15.8 V @ IT = 1.0 mA - defines precise clamping threshold for 15 V rail protection |
| Clamping Voltage (VC) | 21.2 V @ IPP = 1.9 A - maximum voltage seen by protected circuit during 40 W surge |
| Peak Pulse Power | 40 W @ 1.0 ms - sustains high-energy transients per Figure 5 waveform without failure |
| ESD Rating | IEC61000-4-2 Level 4 (±30 kV contact) - exceeds industrial immunity requirements |
| Reverse Leakage (IR) | <100 nA @ VRWM = 12.8 V - ensures minimal standby current in always-on interfaces |
| Junction Temp Range | −55 °C to +150 °C - supports automotive under-hood and industrial control environments |
Pinout & Package
SOT-23 (TO-236) package, case 318, style 9: void-free thermosetting plastic, Pb-free, UL 94 V-0 rated, 2.90 × 1.30 × 1.00 mm footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode 1 | First Zener anode - connects to Line 1 for unidirectional protection or forms one side of bidirectional path |
| Pin 2 | Anode 2 | Second Zener anode - connects to Line 2; enables dual-line protection with shared cathode |
| Pin 3 | Cathode | Common cathode node - ties both Zeners to ground or reference plane; determines polarity configuration |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-cathode topology | Enables two independent 15 V protection paths or single 15 V bidirectional clamp in one SOT-23 footprint |
| 40 W peak pulse rating | Handles IEC61000-4-5 surges up to 1.9 A without degradation when mounted on FR-5 board |
| ±30 kV IEC61000-4-2 contact ESD | Eliminates need for secondary ESD components in USB 2.0, HDMI, and automotive data lines |
| <100 nA leakage @ 12.8 V | Preserves signal integrity and battery life in low-power sensor and IoT interface circuits |
| AEC-Q101 qualified (SZ prefix variant) | Validated for automotive applications including CAN FD and LIN bus nodes requiring PPAP compliance |
Applications
| USB 2.0 Data Lines | HDMI Hot-Plug Detection |
|---|---|
Use Scenario: Protecting D+ and D− lines against ESD events during cable insertion/removal in portable devices. IC Role / Device Role / Timing Role: Dual-line transient voltage suppressor with common cathode grounding to system GND. Use Value: Prevents latch-up or damage to USB transceivers while maintaining <100 nA leakage for suspend-mode current budgets. |
Use Scenario: Safeguarding HPD (Hot-Plug Detect) and DDC (Display Data Channel) lines in HDMI source/sink ports. IC Role / Device Role / Timing Role: Bidirectional clamping device tied between HPD and GND, leveraging Pin 1–Pin 2 symmetry. Use Value: Clamps ±30 kV contact discharges to ≤21.2 V, preserving EDID communication integrity during plug/unplug cycles. |
| Automotive CAN Bus Nodes | Industrial RS-485 Transceivers |
Use Scenario: Protecting CAN_H and CAN_L differential pair inputs in ECU modules exposed to load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional Zener pair - one diode per line referenced to chassis ground via shared cathode (Pin 3). Use Value: Limits transient overshoot to 21.2 V during 40 W surges, preventing transceiver input stage saturation or latch-up. |
Use Scenario: Shielding RS-485 A/B bus terminals from induced lightning surges and ESD in factory automation networks. IC Role / Device Role / Timing Role: Dual-anode configuration used as back-to-back Zeners between A and B lines for symmetrical clamping. Use Value: Achieves bidirectional clamping with matched VBR tolerance (±0.5 V), ensuring balanced common-mode transient rejection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Zener transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PESD5V0S1BA,115 (Nexperia) | Single-line 5 V TVS; lower clamping (12.5 V @ 1 A) but higher ESD rating (±30 kV air); no dual-Zener architecture | Requires two devices for dual-line protection; unsuitable for bidirectional 15 V rail clamping | Select when protecting 5 V logic-level interfaces where low clamping voltage outweighs board space savings |
| SZMMBZ15VDLT1G (onsemi) | Identical electrical specs and pinout; AEC-Q101 qualified, PPAP-capable, with automotive traceability controls | Required for automotive OEM designs needing certified change control and lot traceability | Choose for automotive ECUs, ADAS sensors, or any application requiring AEC-Q101 compliance and PPAP documentation |
Compared with MMBZ15VDLT1, the SZMMBZ15VDLT1G offers identical protection performance with added automotive qualification, while the PESD5V0S1BA serves lower-voltage, single-line use cases - neither is pin-compatible for dual-line 15 V clamping without redesign.
Availability
MMBZ15VDLT1 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI hot-plug circuits, and automotive CAN node designs requiring stable component supply, RoHS-compliant packaging, and long-term production continuity.
Supply support for MMBZ15VDLT1 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
onsemi is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The MMBZxxVxL series was engineered specifically for compact, high-reliability transient suppression in multi-line digital interfaces - prioritizing low leakage, repeatable clamping, and dual-junction integration in SOT-23.
FAQ
What is the exact breakdown voltage tolerance of MMBZ15VDLT1?
The MMBZ15VDLT1 has a specified breakdown voltage range of 14.3 V to 15.8 V at test current IT = 1.0 mA, with nominal 15 V. This ±0.7 V tolerance ensures predictable clamping onset across production lots and temperature extremes from −55 °C to +150 °C, as confirmed in Table 3 of the onsemi datasheet.
Can MMBZ15VDLT1 be used in bidirectional mode for CAN bus protection?
Yes - MMBZ15VDLT1 supports bidirectional clamping by connecting Pins 1 and 2 across the differential pair (e.g., CAN_H and CAN_L) and tying Pin 3 to ground. This configuration leverages its dual-anode structure to provide symmetrical ±15 V clamping, validated in onsemi's CAN protection reference design (Figure 7).
What is the maximum clamping voltage of MMBZ15VDLT1 under surge conditions?
The MMBZ15VDLT1 clamps to 21.2 V at peak pulse current IPP = 1.9 A (per Figure 5 waveform), with 40 W peak power capability. This value is measured under standardized 1.0 ms transient conditions and remains stable across ambient temperatures up to +125 °C per derating curve (Figure 6).
Is MMBZ15VDLT1 RoHS-compliant and halogen-free?
Yes - MMBZ15VDLT1 is explicitly marked as Pb-Free in the ordering information and carries UL 94 V-0 flammability rating. The device uses halogen-free molding compound and complies with RoHS Directive 2011/65/EU, as stated in the "Mechanical Characteristics" section and marking diagram notes.
How does MMBZ15VDLT1 differ from the discontinued MMBZ39VCLT1G?
MMBZ15VDLT1 targets 15 V systems with VBR = 14.3–15.8 V and IPP = 1.9 A, whereas the discontinued MMBZ39VCLT1G is rated for 39 V (VBR = 37.05–40.95 V) and lower surge current (0.76 A). They share SOT-23 packaging and dual-common-cathode topology but serve non-interchangeable voltage rails and cannot substitute without circuit revalidation.
MMBZ15VDLT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- -
- Unidirectional Channels:
- -
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- -
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- -
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MMBZ15VDLT1 FAQ
1.How can I place an order for MMBZ15VDLT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ15VDLT1 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 MMBZ15VDLT1 reliable?
The price and inventory of MMBZ15VDLT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ15VDLT1 is usually 5 days.
3.What payment methods are accepted for MMBZ15VDLT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ15VDLT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ15VDLT1?
MMBZ15VDLT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ15VDLT1 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 MMBZ15VDLT1?
For technical support, including MMBZ15VDLT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ15VDLT1 requirements.
6.How does Aetrix verify that MMBZ15VDLT1 is sourced from the original manufacturer or authorized distributors?
All MMBZ15VDLT1 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 MMBZ15VDLT1 meets industry standards.
7.What is the process for return or replacement of MMBZ15VDLT1?
All MMBZ15VDLT1 units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ15VDLT1, 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 MMBZ15VDLT1 part is unused and in its original packaging.
Return procedure for MMBZ15VDLT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ15VDLT1 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
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