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Vishay General Semiconductor - Diodes Division SMBJ17D-M3/H
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- Part No.:
- SMBJ17D-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ17D-M3/H.pdf
- Description:
- TVS DIODE 17VWM 27.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,170
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Product details
Overview
SMBJ17D-M3/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 17 V stand-off voltage (VWM), 19.2–20.6 V breakdown voltage (VBR) at 1 mA, 27.2 V clamping voltage (VC) at 22.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - ideal for safeguarding MOSFETs and signal lines in industrial power supplies.
For engineers reviewing the SMBJ17D-M3/H datasheet, SMBJ17D-M3/H pinout, SMBJ17D-M3/H application, or SMBJ17D-M3/H equivalent, key selection criteria include verified clamping performance under repetitive surge conditions, M3-grade halogen-free RoHS compliance, J-STD-020 MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its specified VBR range. Its low incremental surge resistance and fast response time ensure effective suppression of transients induced by inductive load switching or ESD events.
The device is rated for 150 °C maximum junction temperature and exhibits 0.5 μA maximum reverse leakage at 17 V, enabling stable operation in high-reliability industrial environments. Thermal resistance from junction to ambient is 125 °C/W on minimum recommended pad layout, supporting predictable derating above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 17 V - Maximum continuous reverse operating voltage before significant conduction begins |
| VBR (Breakdown Voltage) | 19.2–20.6 V at 1 mA - Confirmed avalanche initiation range under standardized test conditions |
| VC (Clamping Voltage) | 27.2 V at 22.1 A IPPM - Peak voltage seen across protected circuit during 10/1000 μs surge |
| PPPM (Peak Pulse Power) | 600 W - Surge energy handling capability per single 10/1000 μs transient event |
| ID (Reverse Leakage) | ≤ 0.5 μA at 17 V - Minimal standby current draw preserving system efficiency |
| Package | SMB (DO-214AA) - Surface-mount outline with 2.20 mm height and 5.59 mm length, optimized for automated assembly |
| MSL Rating | Level 1 per J-STD-020 - No floor life limitation; compatible with standard reflow profiles up to 260 °C peak |
Pinout & Package
Package: SMB (DO-214AA), unidirectional configuration with cathode band marking on one end. Matte tin-plated leads meet J-STD-002 solderability requirements and JESD 22-B102 whisker resistance Class 2 (M3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node in protected circuit path |
| Cathode (banded end) | High-side transient clamp input | Receives surge energy from line being protected; clamps to anode when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| ±3.5 % VBR tolerance | Tight parametric control ensures consistent clamping threshold across production lots |
| 600 W peak pulse power (10/1000 μs) | Validated surge immunity for IEC 61000-4-5 Level 3/4 transient events |
| Halogen-free, RoHS-compliant M3 construction | Meets industrial environmental compliance without compromising thermal or mechanical reliability |
| Low 0.5 μA leakage at VWM | Minimizes quiescent power loss in battery-backed or low-power sensor interfaces |
| MSL Level 1 rating | Enables direct placement into high-volume SMT lines without dry-pack or baking requirements |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensing lines against inductive kickback from relay coils and solenoids. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between MOSFET gate and source to limit dv/dt-induced voltage overshoot. Use Value: Prevents gate oxide damage by limiting transient voltage to ≤27.2 V during 22.1 A surges, maintaining long-term reliability in 24 V DC systems. |
Use Scenario: Safeguarding LIN bus transceivers and microcontroller I/O pins from load dump and jump-start transients. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected between LIN line and chassis ground to absorb negative-going spikes. Use Value: Withstands 600 W pulses while holding clamped voltage below 27.2 V, ensuring transceiver survival per ISO 7637-2 Pulse 1/2a/5a requirements. |
| Telecom Power Supply Inputs | Industrial Sensor Signal Conditioning |
Use Scenario: Input-stage protection of 48 V telecom rectifiers against lightning-induced surges on AC/DC front ends. IC Role / Device Role / Timing Role: Primary-level unidirectional TVS placed after EMI filter but before bulk capacitor and controller IC. Use Value: Clamps 10/1000 μs surges to ≤27.2 V at 22.1 A, preventing overvoltage failure of downstream PWM controllers and optocouplers. |
Use Scenario: Protection of analog inputs on 4–20 mA current loop receivers exposed to field wiring transients. IC Role / Device Role / Timing Role: Low-leakage TVS mounted directly at connector entry point to shunt surge energy before signal conditioning op-amps. Use Value: 0.5 μA max leakage preserves accuracy of precision current-to-voltage conversion; 27.2 V clamping prevents ADC saturation or op-amp rail-rail latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17A-M3/H | Bidirectional variant with same VWM (17 V), symmetric clamping in both polarities | Required where bidirectional transients (e.g., AC-coupled data lines) must be suppressed | Select SMBJ17A-M3/H only if protection is needed for both positive and negative surges; SMBJ17D-M3/H is optimal for DC-biased lines with defined polarity |
| SMAJ17A-M3/H | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (150 °C/W) | Suitable for lower-energy transients or space-constrained layouts where 600 W margin is not required | Choose SMAJ17A-M3/H when board area is critical and surge threat level is limited to IEC 61000-4-5 Level 2; SMBJ17D-M3/H provides higher energy margin and better thermal performance |
Compared with SMBJ17A-M3/H and SMAJ17A-M3/H, the SMBJ17D-M3/H delivers superior unidirectional surge handling (600 W), tighter VBR tolerance (±3.5 %), and lower thermal resistance - making it the preferred choice for industrial DC power rails and high-reliability signal protection where polarity is fixed and energy levels are elevated.
Availability
SMBJ17D-M3/H is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power supply inputs requiring stable component supply with full traceability and lifecycle continuity.
Supply support for SMBJ17D-M3/H 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive applications.
The SMBJ series was engineered specifically for surface-mount transient suppression in harsh environments, emphasizing tight parameter control, MSL Level 1 process compatibility, and robust surge endurance in compact DO-214AA packaging.
FAQ
What is the clamping voltage of SMBJ17D-M3/H at its rated peak pulse current?
The SMBJ17D-M3/H has a maximum clamping voltage (VC) of 27.2 V at 22.1 A peak pulse current (IPPM), measured using the standard 10/1000 μs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuitry during a worst-case transient event and is confirmed in the Vishay datasheet Document Number 87606, Table on page 2.
Is SMBJ17D-M3/H suitable for bidirectional transient protection?
No, SMBJ17D-M3/H is a unidirectional TVS diode, intended for DC circuits with defined polarity. Its cathode band indicates the high-side connection point, and it conducts only during reverse-biased overvoltage events. For bidirectional protection, the SMBJ17A-M3/H variant must be used instead - it provides symmetrical clamping in both directions and is explicitly designated with the "A" suffix.
What does the "M3/H" suffix indicate in SMBJ17D-M3/H?
The "M3" suffix denotes halogen-free, RoHS-compliant construction meeting JESD 201 Class 2 whisker resistance, while "H" specifies packaging in 7″ diameter plastic tape and reel with 750 units per reel. This ordering code ensures compliance with industrial environmental standards and supports automated SMT placement without lead finish or moisture sensitivity concerns.
Can SMBJ17D-M3/H replace SMBJ15D-M3/H in an existing design?
SMBJ17D-M3/H is not a direct replacement for SMBJ15D-M3/H due to its higher 17 V stand-off voltage (vs. 15 V) and correspondingly higher breakdown and clamping voltages. Substituting it may result in insufficient protection margin if the protected circuit operates near 15 V. Validation of VWM, VBR, and VC compatibility with the specific surge profile and operating voltage is required before interchange.
What is the maximum operating junction temperature for SMBJ17D-M3/H?
The SMBJ17D-M3/H has a maximum junction temperature (TJ max.) of +150 °C, as specified in the Vishay datasheet. This rating enables reliable operation in high-temperature industrial enclosures and under sustained power dissipation, provided thermal design accounts for its 125 °C/W junction-to-ambient thermal resistance on minimum recommended PCB pad layout.
SMBJ17D-M3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 17V
- Voltage - Breakdown (Min):
- 19.2V
- Voltage - Clamping (Max) @ Ipp:
- 27.2V
- Current - Peak Pulse (10/1000µs):
- 22.1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ17D-M3/H FAQ
1.How can I place an order for SMBJ17D-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ17D-M3/H 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 SMBJ17D-M3/H reliable?
The price and inventory of SMBJ17D-M3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ17D-M3/H is usually 5 days.
3.What payment methods are accepted for SMBJ17D-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ17D-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ17D-M3/H?
SMBJ17D-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ17D-M3/H 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 SMBJ17D-M3/H?
For technical support, including SMBJ17D-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ17D-M3/H requirements.
6.How does Aetrix verify that SMBJ17D-M3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ17D-M3/H 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 SMBJ17D-M3/H meets industry standards.
7.What is the process for return or replacement of SMBJ17D-M3/H?
All SMBJ17D-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ17D-M3/H, 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 SMBJ17D-M3/H part is unused and in its original packaging.
Return procedure for SMBJ17D-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ17D-M3/H Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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