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Vishay General Semiconductor - Diodes Division SMB10J17AHM3_A/I
- Part No.:
- SMB10J17AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J17AHM3_A/I.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMB10J17AHM3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 17 V stand-off voltage (VWM), 1000 W peak pulse power (10/1000 µs), clamping voltage of 27.6 V at 36.2 A peak surge current, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMB10J17AHM3_A/I datasheet, SMB10J17AHM3_A/I pinout, SMB10J17AHM3_A/I application, or SMB10J17AHM3_A/I equivalent, this device is selected for robust ESD and lightning surge protection in automotive infotainment power supplies, industrial sensor interfaces, and 12 V/24 V board-level power conditioning where low clamping voltage and fast response (<1 ns) are critical.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents <1 µA leakage at 17 V, then rapidly avalanches when transient voltage exceeds its 18.9–20.9 V breakdown range (IT = 1 mA). Its glass-passivated junction ensures stable performance across -55 °C to +150 °C operating temperature.
The SMB10J17AHM3_A/I uses a single PN junction structure with cathode band marking, optimized for unidirectional surge suppression. Its thermal resistance (RθJA = 72 °C/W) and RθJL = 20 °C/W support reliable power dissipation on standard 5.0 mm × 5.0 mm copper pads, meeting J-STD-020 MSL Level 1 reflow requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - Maximum continuous reverse working voltage before leakage exceeds 1 µA; defines safe operating margin below clamping threshold. |
| VBR (min/max) | 18.9 V / 20.9 V - Breakdown voltage range at 1 mA test current; ensures consistent avalanche initiation across production lots. |
| VC @ IPPM | 27.6 V - Clamping voltage at 36.2 A peak pulse current (10/1000 µs); limits downstream IC stress during surge events. |
| PPPM | 1000 W - Peak pulse power rating; enables protection against IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges on 12 V systems. |
| IFSM | 100 A - Non-repetitive forward surge current (8.3 ms half-sine); supports handling of load-dump transients in automotive applications. |
| TJ max | +150 °C - Maximum junction temperature; allows operation in under-hood automotive environments without derating. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), cathode band marked on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path); conducts during positive transients when cathode is biased higher. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail); avalanches to clamp overvoltage by shunting surge current to ground. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMB package | Enables automated placement on dense PCBs while maintaining 1000 W surge capability in footprint smaller than SMA. |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body electronics, and ADAS modules requiring zero-failure field performance. |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C peak without preconditioning, eliminating moisture sensitivity handling overhead. |
| Halogen-free construction | Meets automotive OEM environmental requirements (e.g., GMW3172, Ford WSS-M99P9999-A1) and UL 94 V-0 flammability. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Protecting 12 V power input of infotainment head units against load dump (ISO 16750-2) and jump-start surges. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between VIN and GND, responding within <1 ns to limit voltage to ≤27.6 V. Use Value: Prevents damage to downstream DC/DC controllers and microcontrollers by clamping 1000 W surges without degradation after repeated events. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) of pressure sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-signal and cathode-to-VCC, suppressing negative transients induced by relay switching. Use Value: Maintains signal integrity with <1 µA leakage at 17 V, ensuring measurement accuracy while surviving 36.2 A surge pulses. |
| Telecom DC Power Input | Consumer USB-C Power Delivery |
|
Use Scenario: Front-end protection of 48 V PoE-powered network switches against lightning-induced surges on Ethernet cables. IC Role / Device Role / Timing Role: Primary clamping device on DC input rail, coordinated with upstream gas discharge tube (GDT) for staged protection. Use Value: Delivers 27.6 V clamping at 36.2 A with 72 °C/W thermal resistance, enabling compact heatsink-free layout on PoE midspan cards. |
Use Scenario: Overvoltage protection on VBUS line of USB-C receptacles exposed to accidental 20 V adapter misconnection. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between VBUS and GND, activated only above 18.9 V to avoid interfering with PD negotiation. Use Value: Provides fail-safe shutdown margin with 17 V VWM and 27.6 V VC, compatible with USB PD 3.1 Extended Power Range (EPR) specifications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17AHE3_A/H | Same electrical specs (VWM = 17 V, VC = 27.6 V), but packaged in 7" tape (code H) vs. 13" tape (code I); RoHS-compliant but not halogen-free. | Lacks halogen-free certification; unsuitable for automotive OEMs mandating IEC 61249-2-21 compliance. | Select when halogen content is not restricted and smaller reel size aligns with SMT line logistics. |
| SMCJ17A-HM3_A/I | Higher 1500 W PPPM, larger SMC (DO-214AB) package (7.11 mm × 6.22 mm), same VWM/VC ratings. | Used where higher surge energy (e.g., ISO 7637-2 Pulse 5a) requires >1000 W rating; occupies 2.5× PCB area. | Choose for heavy-duty industrial motor drives or railway electronics needing extended surge margin beyond SMB10J17AHM3_A/I. |
Compared with SMBJ17AHE3_A/H, SMB10J17AHM3_A/I adds halogen-free compliance for automotive Tier 1 supply chains; compared with SMCJ17A-HM3_A/I, it delivers identical clamping performance in 40% less board space-critical for space-constrained ADAS camera modules.
Availability
SMB10J17AHM3_A/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power supply designs requiring stable component supply with AEC-Q101 validation and halogen-free materials compliance.
Supply support for SMB10J17AHM3_A/I 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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and automotive-grade qualification.
The SMB10JxxA series targets high-power-density transient suppression in space-constrained automotive and industrial applications, balancing 1000 W surge capability with SMB footprint and AEC-Q101 validation.
FAQ
What is the maximum clamping voltage of SMB10J17AHM3_A/I at its rated peak pulse current?
The SMB10J17AHM3_A/I has a maximum clamping voltage (VC) of 27.6 V at its rated peak pulse current (IPPM) of 36.2 A, measured using the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events and is guaranteed across the full operating temperature range of -55 °C to +150 °C. The SMB10J17AHM3_A/I maintains this clamping performance without parameter shift after repeated surge exposures.
Is SMB10J17AHM3_A/I suitable for automotive applications requiring AEC-Q101 qualification?
Yes, SMB10J17AHM3_A/I is explicitly AEC-Q101 qualified, as confirmed by Vishay's documentation (Document Number: 88422, Revision: 09-Jan-2024). The "HM3" suffix denotes halogen-free, RoHS-compliant construction, and the "_A/I" ordering code indicates AEC-Q101 qualification with 13-inch tape packaging. It has passed stress tests including high-temperature operating life (HTOL), temperature cycling (TC), and unbiased highly accelerated stress test (UHAST), making it suitable for engine control units, body control modules, and ADAS cameras.
How does the SMB10J17AHM3_A/I differ from the SMBJ17AHE3_A/H variant?
The SMB10J17AHM3_A/I and SMBJ17AHE3_A/H share identical electrical parameters-including 17 V VWM, 18.9–20.9 V VBR, and 27.6 V VC-but differ in material compliance and packaging. SMB10J17AHM3_A/I is halogen-free (per IEC 61249-2-21) and supplied in 13-inch tape (code "I"), whereas SMBJ17AHE3_A/H is RoHS-compliant only (not halogen-free) and shipped in 7-inch tape (code "H"). Both are AEC-Q101 qualified, but only SMB10J17AHM3_A/I meets strict automotive OEM halogen restrictions.
What is the thermal resistance of SMB10J17AHM3_A/I, and how does it impact PCB layout?
The SMB10J17AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes standard FR-4 PCB with no internal copper planes. To maintain safe junction temperatures during 1000 W surge events, designers must provide minimum pad dimensions per Vishay's recommended layout and avoid excessive trace length or narrow connections that increase thermal impedance. The RθJL of 20 °C/W further emphasizes the importance of direct thermal coupling to copper pours.
Can SMB10J17AHM3_A/I be used in bidirectional surge protection circuits?
No, SMB10J17AHM3_A/I is a unidirectional TVS diode, intended only for DC or polarity-defined circuits where the protected line remains at a fixed potential relative to ground. Its cathode band marking and asymmetric IV curve mean it conducts only when cathode voltage exceeds anode by ≥18.9 V. For AC or floating signal lines requiring symmetrical clamping (e.g., RS-485, CAN bus), a bidirectional variant such as SMB8J17CAHM3_A/I must be selected instead-SMB10J17AHM3_A/I will not suppress negative-going transients.
SMB10J17AHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 36.2A
- Power - Peak Pulse:
- 1000W (1kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J17AHM3_A/I FAQ
1.How can I place an order for SMB10J17AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J17AHM3_A/I 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 SMB10J17AHM3_A/I reliable?
The price and inventory of SMB10J17AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J17AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMB10J17AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J17AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J17AHM3_A/I?
SMB10J17AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J17AHM3_A/I 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 SMB10J17AHM3_A/I?
For technical support, including SMB10J17AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J17AHM3_A/I requirements.
6.How does Aetrix verify that SMB10J17AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMB10J17AHM3_A/I 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 SMB10J17AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMB10J17AHM3_A/I?
All SMB10J17AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J17AHM3_A/I, 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 SMB10J17AHM3_A/I part is unused and in its original packaging.
Return procedure for SMB10J17AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J17AHM3_A/I Tags
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