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Vishay General Semiconductor - Diodes Division SMBJ13CAHM3/I
- Part No.:
- SMBJ13CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ13CAHM3/I.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,603
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Product details
Overview
SMBJ13CAHM3/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 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, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in industrial and telecom equipment.
For engineers reviewing the SMBJ13CAHM3/I datasheet, SMBJ13CAHM3/I pinout, SMBJ13CAHM3/I application, or SMBJ13CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.45), halogen-free RoHS-compliant construction (HM3 suffix), AEC-Q101 qualification readiness, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical bidirectional avalanche behavior - no polarity marking required. Its glass-passivated junction enables fast response time (<1 ps) and stable breakdown characteristics across -55 °C to +150 °C operating range.
It delivers 600 W transient suppression under standardized 10/1000 µs surge conditions, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling reliable operation without heatsinking in typical PCB layouts using minimum recommended pad areas.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - maximum continuous reverse working voltage before clamping begins |
| VBR min/max | 14.4 V / 15.9 V at 1 mA - ensures consistent avalanche initiation across production lot |
| VC @ IPPM | 21.5 V at 27.9 A - defines worst-case clamped voltage seen by protected circuitry |
| PPPM | 600 W - peak transient energy absorption capacity per 10/1000 µs waveform |
| IPPM | 27.9 A - maximum non-repetitive surge current it can divert without failure |
| TJ max | +150 °C - supports operation in high-temperature industrial and automotive under-hood environments |
| Package | SMB (DO-214AA) - 0.220" × 0.155" footprint compatible with standard SMT reflow profiles |
Pinout & Package
Two-terminal bidirectional device in SMB (DO-214AA) package; no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for rated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path | Either terminal serves as current entry/exit point during bidirectional surge events; no DC polarity dependency |
| Case (SMB body) | Thermal and mechanical interface | Plastic case meets UL 94 V-0 flammability rating; provides mechanical anchoring and thermal conduction to PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 600 W peak pulse power | Meets IEC 61000-4-5 Level 4 surge immunity requirements when properly laid out |
| Halogen-free & RoHS-compliant (HM3) | Complies with environmental regulations for industrial and automotive end equipment |
| AEC-Q101 qualified option | HM3 suffix indicates qualification path available - supports automotive-grade reliability validation |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on downstream ICs compared to higher-ratio TVS devices |
Applications
| Industrial Motor Drives | Automotive Sensor Interfaces |
|---|---|
|
Use Scenario: Protection of gate driver signal lines against inductive kickback from IGBT/MOSFET switching in variable-frequency drives. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at gate driver output to limit transient excursions below IC absolute maximum ratings. Use Value: Prevents false triggering or latch-up in isolated gate drivers by limiting spikes to ≤21.5 V during 27.9 A surges. |
Use Scenario: ESD and load-dump protection on LIN bus or analog sensor inputs (e.g., temperature, pressure) in engine control modules. IC Role / Device Role / Timing Role: First-line transient suppressor between connector and signal conditioning amplifier or microcontroller ADC input. Use Value: Maintains signal integrity during ISO 16750-2 load-dump pulses while surviving >1000 surges due to robust glass-passivated junction. |
| Telecom Power Feeds | Consumer USB-C Port Protection |
|
Use Scenario: Overvoltage protection on 48 V DC power distribution lines feeding remote radio units or baseband processors. IC Role / Device Role / Timing Role: Parallel-connected TVS across power rail to shunt lightning-induced surges before reaching DC/DC converters. Use Value: Clamps 600 W transients within 21.5 V window, preventing damage to 36 V-rated buck controllers and PMICs. |
Use Scenario: Bidirectional surge suppression on USB-C CC and SBU lines exposed to system-level ESD and cable coupling events. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF typical at 0 V) TVS placed adjacent to connector to minimize signal distortion. Use Value: Provides <1 ps response with 21.5 V clamping - protects USB-C PHY transceivers rated for 24 V absolute max without degrading 10 Gbps signaling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13CA-E3/52 | RoHS-compliant commercial grade (E3), not halogen-free; no AEC-Q101 path | Suitable for cost-sensitive industrial controls where halogen-free or automotive qualification is not mandated | Select when environmental compliance beyond RoHS is not required and supply chain prioritizes broad distributor availability |
| SAC13-03G | Same VWM/VC, but DO-214AC (SMA) package - 30 % smaller footprint, 400 W PPPM | Better suited for space-constrained consumer ports; lower surge margin limits use to IEC 61000-4-2 ESD only | Choose when board area is critical and peak surge exposure is limited to sub-400 W events |
Compared with SMBJ13CAHM3/I, the E3 variant trades halogen-free construction and AEC-Q101 readiness for broader commercial availability, while SAC13-03G sacrifices 33 % peak power handling for 30 % smaller size - making SMBJ13CAHM3/I optimal for industrial and automotive designs requiring both high-energy clamping and regulatory compliance.
Availability
SMBJ13CAHM3/I is available at Aetrix Electronics and suitable for industrial motor drives, automotive sensor interfaces, telecom power feeds, and consumer USB-C port protection requiring stable component supply and halogen-free compliance.
Supply support for SMBJ13CAHM3/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, TVS, MOSFETs, and optoelectronics with emphasis on reliability and application-specific performance.
The SMBJ series targets high-energy transient suppression in harsh environments - engineered for repeatable clamping, low leakage, and robust surge endurance in industrial, automotive, and telecom infrastructure.
FAQ
What is the clamping voltage of SMBJ13CAHM3/I under maximum rated surge current?
The SMBJ13CAHM3/I has a maximum clamping voltage (VC) of 21.5 V when subjected to its peak pulse current (IPPM) of 27.9 A under the standard 10/1000 µs waveform. This value is measured at TA = 25 °C on 0.2" × 0.2" copper pads and defines the upper voltage limit imposed on protected circuitry during worst-case transients. The SMBJ13CAHM3/I maintains this clamping performance across its full operating temperature range.
Is SMBJ13CAHM3/I suitable for automotive applications?
Yes - the HM3 suffix indicates halogen-free, RoHS-compliant construction with an AEC-Q101 qualification path. While the base SMBJ13CAHM3/I is commercial-grade, Vishay offers AEC-Q101-qualified versions under ordering codes like SMBJ13CAHM3_B/I, enabling use in automotive sensor modules, body control units, and infotainment systems where transient robustness and long-term reliability are mandatory.
How does the bidirectional design of SMBJ13CAHM3/I affect PCB layout?
The SMBJ13CAHM3/I has no polarity marking and identical electrical behavior in both directions, simplifying PCB layout by eliminating orientation constraints. It can be placed symmetrically across differential pairs, AC-coupled lines, or floating buses without concern for anode/cathode alignment - reducing assembly errors and enabling reuse across multiple signal types in the same design. Its SMB package also supports automated pick-and-place with standard vision calibration.
What is the thermal resistance of SMBJ13CAHM3/I, and how does it impact derating?
The SMBJ13CAHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W. At ambient temperatures above 25 °C, its peak pulse power must be derated per Figure 2 in the datasheet - e.g., at 75 °C ambient, usable PPPM drops to ~420 W. Proper copper pad sizing (0.2" × 0.2" per terminal) is essential to achieve these published thermal values for the SMBJ13CAHM3/I.
Does SMBJ13CAHM3/I meet any industry surge immunity standards?
Yes - the SMBJ13CAHM3/I's 600 W peak pulse power rating with 10/1000 µs waveform aligns with IEC 61000-4-5 Level 4 (4 kV line-to-earth, 2 kV line-to-line) when implemented with appropriate PCB layout (e.g., short traces, ground plane, proper pad sizing). Its 21.5 V clamping voltage ensures protected ICs remain within safe operating limits during such events, making the SMBJ13CAHM3/I a validated solution for industrial and telecom surge protection requirements.
SMBJ13CAHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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)
SMBJ13CAHM3/I FAQ
1.How can I place an order for SMBJ13CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ13CAHM3/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 SMBJ13CAHM3/I reliable?
The price and inventory of SMBJ13CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ13CAHM3/I is usually 5 days.
3.What payment methods are accepted for SMBJ13CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ13CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ13CAHM3/I?
SMBJ13CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ13CAHM3/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 SMBJ13CAHM3/I?
For technical support, including SMBJ13CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ13CAHM3/I requirements.
6.How does Aetrix verify that SMBJ13CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SMBJ13CAHM3/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 SMBJ13CAHM3/I meets industry standards.
7.What is the process for return or replacement of SMBJ13CAHM3/I?
All SMBJ13CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ13CAHM3/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 SMBJ13CAHM3/I part is unused and in its original packaging.
Return procedure for SMBJ13CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ13CAHM3/I Tags
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DESD3V3E1BL-7B
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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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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