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Vishay General Semiconductor - Diodes Division SMCJ54CAHE3_A/I
- Part No.:
- SMCJ54CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ54CAHE3_A/I.pdf
- Description:
- TVS DIODE 54VWM 87.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,641
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Product details
Overview
SMCJ54CAHE3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection. It features a 54 V standoff voltage (VWM), 87.1 V maximum clamping voltage (VC) at 17.2 A peak pulse current (IPPM), and 1500 W peak pulse power (10/1000 μs waveform), targeting automotive-grade ESD and load-dump protection on power rails and signal lines.
For engineers reviewing the SMCJ54CAHE3_A/I datasheet, SMCJ54CAHE3_A/I pinout, SMCJ54CAHE3_A/I application, or SMCJ54CAHE3_A/I equivalent, this AEC-Q101 qualified TVS offers verified bidirectional clamping performance, low incremental surge resistance, and MSL Level 1 reflow compatibility - critical for automotive infotainment, ADAS sensor interfaces, and industrial power supply input stages.
Technical Context
This device operates as a voltage-clamped crowbar during transient overvoltage events, with symmetrical breakdown behavior in both directions due to its bidirectional construction. Its glass-passivated junction ensures stable VBR (60.0–66.3 V) and low leakage (<1.0 μA at VWM), while thermal resistance RθJA = 75 °C/W supports operation up to TJ = 150 °C.
The SMCJ54CAHE3_A/I delivers fast response time (<1 ns), meets UL 497B recognition (QVGQ2), and is rated for non-repetitive 8.3 ms surge currents up to 200 A (unidirectional equivalent). Its DO-214AB footprint enables automated placement and complies with JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1 (260 °C peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 60.0 V / 66.3 V - Breakdown voltage range at 1 mA test current; defines clamping onset threshold |
| VC @ IPPM | 87.1 V - Clamped voltage at 17.2 A peak pulse current; determines protected circuit stress level |
| PPPM | 1500 W - Peak pulse power handling (10/1000 μs waveform); defines single-event surge energy capacity |
| IPPM | 17.2 A - Peak pulse current corresponding to VC; used to size PCB trace and layout for surge path |
| TJ max | +150 °C - Maximum junction temperature; sets thermal derating boundary for sustained operation |
| Package | SMC (DO-214AB) - Standardized 2-pin surface-mount outline with 8.0 mm × 8.0 mm copper pad requirement |
Pinout & Package
SMCJ54CAHE3_A/I uses the SMC (DO-214AB) package: a 2-terminal, non-polarized surface-mount case with matte tin-plated leads, no polarity marking (bidirectional), and mechanical dimensions of 7.11 mm × 6.22 mm × 2.62 mm (L × W × H). Mounting requires 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal per datasheet Fig. 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive surge) | One side of symmetrical junction; conducts during positive transients relative to cathode reference |
| Cathode | Transient current entry (negative surge) | Other side of symmetrical junction; conducts during negative transients - functionally identical to anode in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors |
| UL 497B recognized (QVGQ2) | Meets safety standard for telecom and industrial signal line protectors without additional certification overhead |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without baking or special handling |
| Low incremental surge resistance | Enables tighter VC – VBR margin (ΔV = 27.1 V), reducing protected IC voltage stress during clamping |
| Glass passivated junction | Ensures long-term parameter stability and low leakage (<1.0 μA) across temperature and humidity |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 5a (load dump). IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between power rail and ground, absorbing >100 V transients within nanoseconds. Use Value: Limits rail voltage to ≤87.1 V during 1500 W surges, preventing damage to downstream DC/DC controllers and microcontrollers. |
Use Scenario: Shielding analog outputs (e.g., 4–20 mA loops) and digital I/O (CAN, LIN) from ESD and field-induced transients in factory automation. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF typical) shunt protector on signal traces, grounded via shortest possible path. Use Value: Maintains signal integrity with <1.0 μA leakage at 54 V, enabling accurate low-current measurements without offset error. |
| Telecom Interface Surge Protection | Consumer Power Adapter Input Stage |
Use Scenario: Safeguarding Ethernet PHYs, PoE injectors, and DSL line drivers against lightning-induced surges per IEC 61000-4-5 (10/700 μs). IC Role / Device Role / Timing Role: Primary-level TVS on AC/DC front-end and data line pairs, coordinated with GDT or MOV secondary protection. Use Value: Withstands 17.2 A peak pulse current and clamps to 87.1 V, preserving PHY ICs rated for ≤100 V absolute maximum. |
Use Scenario: Input-stage surge suppression in wall adapters and USB-C PD chargers exposed to mains-borne transients. IC Role / Device Role / Timing Role: Secondary-side TVS after bridge rectifier, protecting switching controller and feedback network from reflected surges. Use Value: RoHS-compliant and halogen-free (HE3 suffix), supporting global regulatory compliance without sacrificing 1500 W surge rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ54CA-E3/52 | Lower PPPM (600 W), smaller SMB (DO-214AA) package, same VWM/VC specs | Suitable only for lower-energy transients; not rated for automotive load dump | Select when board space is constrained and surge energy is ≤600 W |
| 1.5KE54CA | Through-hole DO-201 package, higher VC (93.6 V), same VWM, 1500 W rating | Requires through-hole assembly; less suitable for high-density automotive PCBs | Choose for legacy designs or where manual repair/rework is preferred |
Compared with SMBJ54CA-E3/52 and 1.5KE54CA, the SMCJ54CAHE3_A/I provides AEC-Q101 qualification, MSL Level 1 compatibility, and DO-214AB footprint - making it the only option among the three validated for automated SMT production in automotive power modules.
Availability
SMCJ54CAHE3_A/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom infrastructure, and consumer power adapter designs requiring stable component supply, AEC-Q101 compliance, and high-reliability surge immunity.
Supply support for SMCJ54CAHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series was developed specifically for high-power, surface-mount transient suppression in automotive and industrial environments where AEC-Q101 validation, low clamping ratio, and robust thermal performance are mandatory.
FAQ
What does the "CA" suffix indicate in SMCJ54CAHE3_A/I?
The "CA" suffix denotes a bidirectional configuration - meaning the SMCJ54CAHE3_A/I provides symmetrical transient suppression in both polarities, with identical breakdown and clamping characteristics for positive and negative voltage excursions. This eliminates the need for polarity-aware placement and simplifies design for AC-coupled or floating signal lines.
Is SMCJ54CAHE3_A/I suitable for ISO 16750-2 automotive load dump protection?
Yes, the SMCJ54CAHE3_A/I is rated for 1500 W peak pulse power (10/1000 μs) and clamps to 87.1 V at 17.2 A, meeting the voltage and energy requirements of ISO 16750-2 Test 4a (load dump) when used with appropriate upstream impedance. Its AEC-Q101 qualification further confirms suitability for under-hood automotive applications.
How does the HE3 suffix differ from E3 or M3 in SMCJ54CAHE3_A/I?
The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification, distinguishing it from "E3" (RoHS commercial grade) and "HM3" (halogen-free + AEC-Q101). The SMCJ54CAHE3_A/I is therefore certified for automotive use, whereas E3/M3 variants are restricted to commercial or industrial applications without automotive validation.
What is the maximum recommended PCB copper pad size for SMCJ54CAHE3_A/I?
The datasheet specifies a minimum pad size of 0.31″ × 0.31″ (8.0 mm × 8.0 mm) per terminal for thermal and surge current handling. Larger pads improve heat dissipation and surge current capability but must maintain clearance to adjacent traces; the SMCJ54CAHE3_A/I's RθJA = 75 °C/W assumes this baseline layout.
Does SMCJ54CAHE3_A/I have a specified junction capacitance value?
No junction capacitance (CJ) is specified for the SMCJ54CAHE3_A/I in the provided datasheet. While unidirectional variants list CJ in Fig. 4, bidirectional types like SMCJ54CAHE3_A/I omit this parameter - indicating it is not characterized or guaranteed, and designers should assume worst-case coupling effects in high-frequency signal paths.
SMCJ54CAHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 54V
- Voltage - Breakdown (Min):
- 60V
- Voltage - Clamping (Max) @ Ipp:
- 87.1V
- Current - Peak Pulse (10/1000µs):
- 17.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ54CAHE3_A/I FAQ
1.How can I place an order for SMCJ54CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ54CAHE3_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 SMCJ54CAHE3_A/I reliable?
The price and inventory of SMCJ54CAHE3_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 SMCJ54CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ54CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ54CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ54CAHE3_A/I?
SMCJ54CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ54CAHE3_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 SMCJ54CAHE3_A/I?
For technical support, including SMCJ54CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ54CAHE3_A/I requirements.
6.How does Aetrix verify that SMCJ54CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ54CAHE3_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 SMCJ54CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ54CAHE3_A/I?
All SMCJ54CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ54CAHE3_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 SMCJ54CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMCJ54CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ54CAHE3_A/I Tags
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