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Vishay General Semiconductor - Diodes Division SMBJ13AHM3_A/I
- Part No.:
- SMBJ13AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13AHM3_A/I.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,518
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Product details
Overview
SMBJ13AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping fast-rising ESD and surge transients on power and signal lines. It features 13 V standoff voltage (VWM), 14.4–15.9 V breakdown voltage (VBR) at 1 mA, 21.5 V maximum clamping voltage (VC) at 27.9 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), used to protect MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the SMBJ13AHM3_A/I datasheet, SMBJ13AHM3_A/I pinout, SMBJ13AHM3_A/I application, or SMBJ13AHM3_A/I equivalent, key selection criteria include unidirectional polarity, 13 V working voltage, 21.5 V clamping performance under 27.9 A surge, AEC-Q101 qualification status, and halogen-free RoHS-compliant packaging with M3 suffix.
Technical Context
This TVS diode operates as a voltage-clamping protection device placed in parallel with sensitive circuit nodes. Its silicon avalanche junction responds within <1 ps to transients, limiting voltage excursions above VWM by entering avalanche conduction when reverse voltage exceeds VBR.
The SMBJ13AHM3_A/I is rated for 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), supports operating junction temperatures from –55 °C to +150 °C, and exhibits 0.084 %/°C temperature coefficient of VBR - enabling stable clamping across wide thermal ranges in embedded power rails and I/O lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - maximum continuous reverse operating voltage before clamping initiates; defines safe DC/AC bias margin for protected line. |
| VBR min/max | 14.4 V / 15.9 V at IT = 1 mA - guaranteed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 21.5 V at 27.9 A - clamped voltage under 10/1000 µs surge; determines maximum stress imposed on downstream ICs. |
| PPPM | 600 W - peak pulse power handling capability; enables robust protection against lightning-induced surges and inductive switching spikes. |
| IR @ VWM | 1.0 µA - maximum reverse leakage at 13 V; minimizes standby power loss and avoids false triggering in low-current sensor circuits. |
| TJ max | +150 °C - maximum junction temperature; supports operation in under-hood automotive and high-temperature industrial environments. |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 5.21 mm × 4.06 mm footprint and 2.20 mm height; compatible with automated SMT assembly. |
Pinout & Package
Package: SMB (DO-214AA), unidirectional configuration with cathode band marking on one end. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes clamping path during reverse transient events. |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., 12 V rail or sensor output); conducts avalanche current when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables reliable suppression of IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without degradation in SMB footprint. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for ADAS camera modules and body control units. |
| Halogen-free & RoHS-compliant (M3) | Meets EU Directive 2011/65/EU and IPC-1752A material declarations; eliminates brominated flame retardants in molding compound. |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients - critical for protecting 3.3 V or 5 V logic interfaces adjacent to 12 V/24 V domains. |
| MSL Level 1 (260 °C peak reflow) | Supports single-pass lead-free reflow without moisture sensitivity concerns - eliminates pre-bake requirement in high-volume manufacturing. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery-supplied ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp transients before they reach LDOs and microcontrollers. Use Value: Limits voltage to ≤21.5 V during 27.9 A surge, preventing latch-up or gate oxide damage in downstream 3.3 V/5 V logic. |
Use Scenario: Analog output lines (e.g., 4–20 mA current loop or 0–10 V voltage output) from pressure/temperature sensors in factory automation. IC Role / Device Role / Timing Role: Parallel-connected TVS on sensor output to absorb ESD (IEC 61000-4-2 ±8 kV contact) and cable discharge events. Use Value: Sub-µA leakage at 13 V ensures minimal offset error in precision analog paths; fast response preserves signal integrity during sub-nanosecond transients. |
| Telecom DC Power Input Protection | Consumer Device USB/Charging Port Protection |
Use Scenario: 48 V DC input stage of PoE-powered network switches or base station radios subjected to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Primary clamping device on DC input rail upstream of DC/DC converters and hot-swap controllers. Use Value: 600 W rating sustains multiple 10/1000 µs surges without parametric shift; 150 °C TJ max allows operation in sealed enclosures with limited airflow. |
Use Scenario: VBUS line in USB-C receptacles on portable speakers or smart home hubs, exposed to user-handling ESD and charger-induced transients. IC Role / Device Role / Timing Role: Low-capacitance TVS (typ. 250 pF at 0 V) placed directly at connector to shunt ESD before reaching USB PHY IC. Use Value: 13 V VWM matches typical 5 V USB supply margin; cathode-band orientation enables unambiguous PCB layout and automated optical inspection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13AHE3_A/I | Same electrical specs, but RoHS-compliant with brominated flame retardant (non-halogen-free); E3 suffix instead of M3. | Acceptable for commercial/industrial use where halogen-free compliance is not mandated (e.g., non-automotive BOMs). | Select SMBJ13AHE3_A/I if halogen content is unrestricted and cost optimization is prioritized over automotive material requirements. |
| SMBJ13CAHM3_A/I | Bidirectional variant: symmetric clamping in both polarities; VBR min/max = 14.4–15.9 V, same VC = 21.5 V, but no anode/cathode polarity marking. | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN bus) where voltage reversals occur during normal operation. | Choose SMBJ13CAHM3_A/I only when bidirectional protection is explicitly needed; SMBJ13AHM3_A/I is preferred for DC power rails due to lower leakage and defined polarity. |
Compared with SMBJ13AHE3_A/I, SMBJ13AHM3_A/I offers halogen-free construction required for automotive AEC-Q101 programs, while SMBJ13CAHM3_A/I provides symmetrical clamping essential for differential or AC signals - neither is pin-compatible with SMBJ13AHM3_A/I due to differing polarity and marking conventions.
Availability
SMBJ13AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and consumer USB interface designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ13AHM3_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, power efficiency, and automotive qualification.
The SMBJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where robustness, AEC-Q101 compliance, and consistent clamping performance are mandatory.
FAQ
What is the clamping voltage of SMBJ13AHM3_A/I under a standard 10/1000 µs surge?
The SMBJ13AHM3_A/I has a maximum clamping voltage (VC) of 21.5 V when subjected to its rated peak pulse current of 27.9 A using the 10/1000 µs waveform. This value is measured per IEC 61000-4-5 test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ13AHM3_A/I maintains this clamping performance across its specified operating temperature range.
Is SMBJ13AHM3_A/I qualified for automotive applications?
Yes, SMBJ13AHM3_A/I is AEC-Q101 qualified, as indicated by the "HM3" suffix - denoting halogen-free, RoHS-compliant construction with full automotive reliability testing including temperature cycling, highly accelerated life testing (HALT), and ESD robustness validation. This makes SMBJ13AHM3_A/I suitable for under-hood and chassis-mounted automotive modules requiring certified transient protection.
How does the M3 suffix differ from E3 in SMBJ13AHM3_A/I?
The M3 suffix in SMBJ13AHM3_A/I specifies halogen-free, RoHS-compliant construction meeting IPC-1752A material declarations, whereas E3 denotes RoHS compliance without halogen-free assurance. Both meet JESD 201 Class 2 whisker resistance and MSL Level 1 reflow compatibility, but only M3 satisfies strict automotive material restrictions such as GMW3172 and Ford WSS-M99P9999-A1.
What is the reverse leakage current of SMBJ13AHM3_A/I at its working voltage?
The SMBJ13AHM3_A/I exhibits a maximum reverse leakage current (ID) of 1.0 µA at its rated standoff voltage (VWM) of 13 V and ambient temperature of 25 °C. This ultra-low leakage ensures minimal power drain in battery-operated systems and avoids interference with high-impedance sensor inputs or precision reference circuits where even nanoamp-level currents affect accuracy.
Can SMBJ13AHM3_A/I be used in bidirectional signal protection?
No - SMBJ13AHM3_A/I is a unidirectional TVS diode, with polarity marked by a cathode band; it conducts only when reverse-biased beyond VBR. For bidirectional signal lines like RS-485 or CAN, the bidirectional variant SMBJ13CAHM3_A/I must be used. Using SMBJ13AHM3_A/I on AC or floating signals risks failure during negative half-cycles due to lack of forward conduction path.
SMBJ13AHM3_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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 27.9A
- Power - Peak Pulse:
- 600W
- 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)
SMBJ13AHM3_A/I FAQ
1.How can I place an order for SMBJ13AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13AHM3_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 SMBJ13AHM3_A/I reliable?
The price and inventory of SMBJ13AHM3_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 SMBJ13AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ13AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13AHM3_A/I?
SMBJ13AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13AHM3_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 SMBJ13AHM3_A/I?
For technical support, including SMBJ13AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13AHM3_A/I requirements.
6.How does Aetrix verify that SMBJ13AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ13AHM3_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 SMBJ13AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ13AHM3_A/I?
All SMBJ13AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13AHM3_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 SMBJ13AHM3_A/I part is unused and in its original packaging.
Return procedure for SMBJ13AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ13AHM3_A/I Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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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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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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