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Vishay General Semiconductor - Diodes Division SMBJ17CD-M3/H
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- Part No.:
- SMBJ17CD-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ17CD-M3/H.pdf
- Description:
- TVS DIODE 17VWM 27.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,337
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Product details
Overview
SMBJ17CD-M3/H from Vishay is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features a 17 V standoff voltage (VWM), 19.2–20.6 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 μs), and clamps to ≤27.2 V at 22.1 A surge current - deployed in sensor interface protection and industrial I/O circuits.
For engineers reviewing the SMBJ17CD-M3/H datasheet, SMBJ17CD-M3/H pinout, SMBJ17CD-M3/H application, or SMBJ17CD-M3/H equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, thermal derating curves, M3 halogen-free RoHS-compliant construction, and direct alternatives with validated VWM/VBR/IPPM alignment for ESD and lightning surge protection design.
Technical Context
This device operates as a silicon avalanche diode optimized for fast-response transient suppression in both polarity directions. Its bidirectional symmetry enables use without polarity awareness on AC-coupled or differential lines, and its low clamping ratio (VC/VBR ≈ 1.35) ensures tight overvoltage control during 10/1000 μs surges.
Designed per ANSI/IEEE C62.35, it sustains repetitive 0.01% duty cycle pulses up to 600 W, with junction temperature rated from –55 °C to +150 °C. Thermal resistance is 125 °C/W (junction-to-ambient, mounted on minimum pad), and it meets J-STD-020 MSL Level 1 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - maximum continuous reverse operating voltage before significant leakage; defines safe working range for protected line. |
| VBR min/max | 19.2 V / 20.6 V at 1 mA - tight ±3.5% tolerance ensures predictable turn-on across production lots. |
| VC @ IPPM | 27.2 V at 22.1 A - clamping voltage under full 600 W surge; determines maximum stress on downstream ICs. |
| PPPM | 600 W (10/1000 μs waveform) - peak transient energy handling capacity for lightning or inductive switch-off events. |
| ID @ VWM | 0.5 μA - ultra-low leakage preserves signal integrity and battery life in always-on sensor nodes. |
| TJ max | +150 °C - enables reliable operation in high-temperature industrial enclosures and automotive under-hood environments. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, M3 grade (JESD 201 Class 2 whisker resistant), matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Cathode Band Absent) | Terminal A | Bidirectional symmetry means no polarity marking; either end connects to line or ground depending on circuit topology. |
| Cathode (Cathode Band Absent) | Terminal B | Identical to Terminal A - device functions identically in both directions; no cathode band per spec for CD suffix parts. |
Key Features
| Feature | Design Value |
|---|---|
| ±3.5 % VBR tolerance | Enables precise, repeatable clamping thresholds across manufacturing batches - critical for compliance with IEC 61000-4-5 Level 4 surge immunity. |
| 600 W peak pulse power | Handles 10/1000 μs surges up to 22.1 A without degradation - suitable for telecom line cards and industrial PLC analog inputs. |
| MSL Level 1 rating | Supports standard SMT reflow (peak 260 °C) without preconditioning - simplifies high-volume assembly and eliminates moisture sensitivity delays. |
| Low 0.5 μA leakage at VWM | Minimizes standby current draw in battery-powered IoT sensors and avoids false triggering in high-impedance measurement paths. |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting 0–10 V analog outputs of pressure/temperature sensors from load dump and ESD in factory automation systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed between signal line and chassis ground to clamp transients before they reach ADC input or op-amp buffer. Use Value: Prevents latch-up or permanent damage to precision analog front-ends while maintaining <0.5 μA leakage to avoid offset drift. | Use Scenario: Safeguarding LIN bus transceiver pins against battery reverse connection and jump-start spikes in door module ECUs. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across LIN data line and ground to absorb 10/1000 μs surges up to ±35 V without affecting 19.2 kbps signaling integrity. Use Value: Ensures robust communication during vehicle service events while meeting ISO 16750-2 pulse 5a/b requirements. |
| Telecom DSL Line Protection | Consumer Appliance Motor Drive Feedback |
Use Scenario: Shielding ADSL splitter ports from induced surges on outdoor copper pairs exposed to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Bidirectional TVS applied differentially across tip/ring lines to suppress mode conversion and protect PHY layer transceivers. Use Value: Maintains signal fidelity below 2.2 MHz by limiting clamping voltage to 27.2 V while surviving repeated 600 W surges. | Use Scenario: Guarding hall-effect rotor position feedback lines in BLDC motor controllers against commutation noise and back-EMF spikes. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at microcontroller GPIO input to shunt fast-rising edge transients (<1 ns rise time) before logic threshold violation. Use Value: Eliminates spurious interrupts and resets caused by motor switching noise, with no impact on 10 kHz PWM timing resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17CA-E3/52 (Vishay) | Same VWM/VBR/PPPM specs; differs only in packaging (tape-and-reel vs. bulk) and M3 compliance status (not explicitly stated). | No functional difference in circuit performance; intended for same PCB layout and protection function. | Select SMBJ17CD-M3/H when M3 whisker resistance and halogen-free compliance are required for industrial or automotive programs. |
| P6SMB17CA (Littelfuse) | Identical VWM (17 V), VBR (19.2–20.6 V), PPPM (600 W); minor VC variance (27.7 V vs. 27.2 V) due to process differences. | Valid alternative where Littelfuse supply chain preference or dual-sourcing strategy applies; same DO-214AA footprint. | Choose P6SMB17CA if qualifying alternate suppliers is needed - no layout change required, but verify VC margin against downstream IC absolute maximum ratings. |
Compared with SMBJ17CD-M3/H, SMBJ17CA-E3/52 offers identical protection performance but lacks documented M3 qualification, while P6SMB17CA provides functionally equivalent clamping with a 0.5 V higher VC - requiring review of downstream IC's 28 V tolerance margin.
Availability
SMBJ17CD-M3/H is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body electronics, telecom line protection, and consumer appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for SMBJ17CD-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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and high-power handling.
The SMBJ series was engineered specifically for robust, surface-mount transient suppression in harsh environments - targeting industrial automation, automotive subsystems, and infrastructure equipment where surge immunity and long-term stability are mandatory.
FAQ
What is the standoff voltage rating of SMBJ17CD-M3/H?
The SMBJ17CD-M3/H has a maximum reverse standoff voltage (VWM) of 17 V, meaning it remains in high-impedance state up to this DC or RMS voltage level. This value is confirmed in the Vishay datasheet Document Number 87606, Table "ELECTRICAL CHARACTERISTICS", row for SMBJ17CD. Operation above 17 V initiates avalanche conduction to clamp transients.
Is SMBJ17CD-M3/H unidirectional or bidirectional?
SMBJ17CD-M3/H is a bidirectional TVS diode, indicated by the "CD" suffix per Vishay's naming convention. Unlike unidirectional variants (e.g., SMBJ17D), it has no cathode band and conducts symmetrically in both polarities - essential for protecting AC-coupled lines, differential buses, or circuits where polarity cannot be guaranteed.
What is the peak pulse current rating for SMBJ17CD-M3/H?
The SMBJ17CD-M3/H supports a peak pulse current (IPPM) of 22.1 A under the standard 10/1000 μs waveform, derived from its 600 W peak pulse power rating and 27.2 V clamping voltage (VC). This value is explicitly listed in the "ELECTRICAL CHARACTERISTICS" table of the Vishay datasheet 87606 for SMBJ17CD.
Does SMBJ17CD-M3/H meet RoHS and halogen-free requirements?
Yes, SMBJ17CD-M3/H is halogen-free, RoHS-compliant, and qualified to JESD 201 Class 2 for whisker resistance, as specified in the "MECHANICAL DATA" section of Vishay document 87606. The "M3" suffix denotes industrial-grade construction meeting these material requirements - critical for automotive and industrial certifications.
What package type does SMBJ17CD-M3/H use?
SMBJ17CD-M3/H uses the SMB (DO-214AA) surface-mount package, measuring 4.57 mm × 3.94 mm × 2.20 mm with gull-wing leads. This package is standardized across the SMBJ family and supports automated placement, reflow soldering per J-STD-020 MSL Level 1, and thermal dissipation up to 5.0 W on infinite heatsink.
SMBJ17CD-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:
- -
- Bidirectional Channels:
- 1
- 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)
SMBJ17CD-M3/H FAQ
1.How can I place an order for SMBJ17CD-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ17CD-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 SMBJ17CD-M3/H reliable?
The price and inventory of SMBJ17CD-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 SMBJ17CD-M3/H is usually 5 days.
3.What payment methods are accepted for SMBJ17CD-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ17CD-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ17CD-M3/H?
SMBJ17CD-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ17CD-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 SMBJ17CD-M3/H?
For technical support, including SMBJ17CD-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ17CD-M3/H requirements.
6.How does Aetrix verify that SMBJ17CD-M3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ17CD-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 SMBJ17CD-M3/H meets industry standards.
7.What is the process for return or replacement of SMBJ17CD-M3/H?
All SMBJ17CD-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ17CD-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 SMBJ17CD-M3/H part is unused and in its original packaging.
Return procedure for SMBJ17CD-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ17CD-M3/H Tags
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