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Vishay General Semiconductor - Diodes Division SMCJ5.0CA-E3/9AT
- Part No.:
- SMCJ5.0CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ5.0CA-E3/9AT.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,563
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Product details
Overview
SMCJ5.0CA-E3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on signal and power lines. It features a 5.0 V stand-off voltage (VWM), 7.25 V maximum breakdown voltage (VBR), 1500 W peak pulse power (10/1000 μs), <10 ns response time, and operates across -55 °C to +150 °C - used for protecting automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the SMCJ5.0CA-E3/9AT datasheet, SMCJ5.0CA-E3/9AT pinout, SMCJ5.0CA-E3/9AT application, or SMCJ5.0CA-E3/9AT equivalent, key selection criteria include bidirectional clamping capability at 5.0 V stand-off, 1500 W surge rating with low clamping voltage (9.2 V at 163 A), RoHS-compliant matte tin terminations, and AEC-Q101 qualification readiness via HE3 suffix variants.
Technical Context
This device functions as a silicon avalanche diode optimized for fast transient suppression in both polarities. Its glass-passivated junction ensures stable breakdown characteristics, while low incremental surge resistance enables effective energy diversion during ESD or lightning-induced surges.
Designed for surface-mount placement on PCBs with 8.0 mm × 8.0 mm copper pads per terminal, it meets MSL Level 1 per J-STD-020 and supports reflow up to 260 °C peak. The bidirectional configuration eliminates polarity concerns in AC-coupled or differential signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse working voltage before clamping begins; sets operating margin for 5 V logic/sensor rails. |
| VBR (min/max) | 6.40 V / 7.25 V at 10 mA - Confirmed breakdown range ensures reliable turn-on without premature conduction under normal operation. |
| VC @ IPPM | 9.2 V at 163 A - Clamping voltage under full 1500 W surge; limits downstream IC stress to safe levels during transients. |
| PPPM | 1500 W (10/1000 μs waveform) - High-energy surge handling suitable for automotive load-dump and industrial switching noise. |
| IPPM | 163 A - Peak surge current capacity directly derived from PPPM and VC; validates robustness against IEC 61000-4-5 Level 4 events. |
| TJ max | +150 °C - Junction temperature limit enabling use in under-hood automotive and high-ambient industrial environments. |
| Package | SMC (DO-214AB) - Standardized 2-pin surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height for automated assembly. |
Pinout & Package
SMCJ5.0CA-E3/9AT uses the SMC (DO-214AB) package: a 2-terminal surface-mount device with no polarity marking for bidirectional operation. 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 | Transient return path (bidirectional) | Provides symmetrical conduction in either direction; connects to protected line or ground reference depending on layout. |
| Cathode | Transient return path (bidirectional) | Functionally identical to Anode in CA devices; no cathode band marking distinguishes it from unidirectional variants. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC signals, differential buses (e.g., CAN, RS-485), and floating references without polarity constraints. |
| 1500 W peak pulse power | Withstands high-energy transients such as ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Combination Wave (10/1000 μs). |
| 9.2 V clamping voltage at 163 A | Keeps protected ICs (e.g., microcontrollers, transceivers) below absolute maximum ratings during surge events. |
| Low profile SMC package | Supports high-density PCB layouts and automated pick-and-place; compatible with standard SMT reflow profiles including 260 °C peak. |
| AEC-Q101 qualification path | HE3/HM3 suffix variants are AEC-Q101 qualified; this E3/9AT variant shares identical die and construction for seamless qualification migration. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine control units exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed between sensor output and MCU ADC input to shunt overvoltage before damage occurs. Use Value: Prevents latch-up or gate oxide rupture in 5 V-tolerant ADC inputs by limiting transient excursions to ≤9.2 V at 163 A. |
Use Scenario: Safeguarding PLC digital input modules connected to 24 V DC field wiring subject to inductive kickback and EFT bursts. IC Role / Device Role / Timing Role: Standoff-rated TVS mounted across input terminals to absorb repetitive switching transients without degradation. Use Value: Maintains system uptime by eliminating false triggering and component failure due to >1 kV fast transients on industrial fieldbus lines. |
| Consumer USB Port Protection | Telecom Line Interface |
|
Use Scenario: Adding secondary surge protection on USB 2.0 data lines (D+/D−) in portable docking stations where primary protection resides upstream. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp minimizing signal distortion while meeting IEC 61000-4-2 Level 4 ESD immunity. Use Value: Ensures USB enumeration reliability by clamping ESD events to <9.2 V without adding >10 pF parasitic capacitance to high-speed lines. |
Use Scenario: Protecting Ethernet PHY interface pins (e.g., MDI pairs) in VoIP phones and small-cell base stations against lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Primary front-end TVS on isolated Ethernet magnetics secondary side to divert common-mode surges before reaching PHY IC. Use Value: Achieves IEC 61000-4-5 Level 3 compliance (2 kV line-earth) using single-device solution with verified 1500 W surge capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC5.0B-TB-E3/57T | Same VWM (5.0 V), lower PPPM (600 W), smaller SMA package (DO-214AC), higher VC (11.2 V at 53 A) | Better suited for space-constrained consumer ports; insufficient for automotive load-dump duty cycles. | Select when board area is critical and surge energy is limited to IEC 61000-4-2 only. |
| 1.5KE5.0CA | Same VWM/VBR, through-hole DO-201 package, identical 1500 W rating but higher thermal resistance (RθJA ≈ 120 °C/W) | Requires wave soldering; less suitable for high-volume SMT production or dense layouts. | Choose for legacy through-hole designs or prototyping where rework tolerance outweighs automation needs. |
Compared with SAC5.0B-TB-E3/57T and 1.5KE5.0CA, the SMCJ5.0CA-E3/9AT delivers optimal balance of high surge capacity, SMT manufacturability, and low-clamp performance in a standardized footprint - making it preferred for automotive and industrial production requiring AEC-Q101 scalability and 13″ reel logistics.
Availability
SMCJ5.0CA-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer USB docking stations, and telecom line interfaces requiring stable component supply across multi-year production cycles.
Supply support for SMCJ5.0CA-E3/9AT 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 automotive-grade qualification.
The SMCJ series was developed specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness, consistency, and AEC-Q101 readiness are mandatory.
FAQ
What is the clamping voltage of the SMCJ5.0CA-E3/9AT under maximum surge conditions?
The SMCJ5.0CA-E3/9AT has a maximum clamping voltage (VC) of 9.2 V at 163 A, measured with a 10/1000 μs waveform. This value is confirmed in the Vishay datasheet (Document Number 88394, page 2) and defines the upper voltage limit imposed on protected circuitry during a full 1500 W transient event. The SMCJ5.0CA-E3/9AT maintains this clamping performance across its operational temperature range.
Is the SMCJ5.0CA-E3/9AT suitable for automotive applications?
Yes - the SMCJ5.0CA-E3/9AT uses the same die and construction as AEC-Q101-qualified variants (e.g., SMCJ5.0CAHE3_A/I). While the E3/9AT suffix denotes commercial-grade RoHS compliance, its electrical specs, thermal performance (TJ max = +150 °C), and mechanical robustness align with automotive requirements. The SMCJ5.0CA-E3/9AT is commonly deployed in non-safety-critical automotive subsystems like body control modules and sensor interfaces.
How does the bidirectional design of the SMCJ5.0CA-E3/9AT affect its PCB layout?
The SMCJ5.0CA-E3/9AT has no polarity marking and conducts identically in both directions, simplifying layout by eliminating cathode/anode orientation checks. It can be placed across any two nodes requiring symmetric overvoltage protection - such as differential signal pairs or AC-coupled lines. The SMCJ5.0CA-E3/9AT requires standard SMC pad dimensions (0.305" × 0.220") per Vishay's recommended mounting layout.
What is the surge current rating of the SMCJ5.0CA-E3/9AT, and how is it derived?
The SMCJ5.0CA-E3/9AT supports a peak pulse current (IPPM) of 163 A, calculated from its 1500 W peak pulse power rating and 9.2 V clamping voltage (I = P/V). This rating applies to the standardized 10/1000 μs double-exponential waveform defined in ANSI/IEEE C62.35. The SMCJ5.0CA-E3/9AT sustains this current without parametric shift when mounted on 8.0 mm × 8.0 mm copper pads per terminal.
Does the SMCJ5.0CA-E3/9AT require heatsinking in typical applications?
No dedicated heatsink is required for transient suppression duty, as energy absorption occurs in sub-millisecond pulses. However, for sustained power dissipation, its thermal resistance is RθJA = 75 °C/W (typical) and RθJL = 15 °C/W (junction-to-lead). The SMCJ5.0CA-E3/9AT relies on PCB copper mass for thermal management during repeated surges; minimum 8.0 mm × 8.0 mm pads per terminal are specified to maintain reliability.
SMCJ5.0CA-E3/9AT 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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 163A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
SMCJ5.0CA-E3/9AT FAQ
1.How can I place an order for SMCJ5.0CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ5.0CA-E3/9AT 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 SMCJ5.0CA-E3/9AT reliable?
The price and inventory of SMCJ5.0CA-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ5.0CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ5.0CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ5.0CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ5.0CA-E3/9AT?
SMCJ5.0CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ5.0CA-E3/9AT 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 SMCJ5.0CA-E3/9AT?
For technical support, including SMCJ5.0CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ5.0CA-E3/9AT requirements.
6.How does Aetrix verify that SMCJ5.0CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ5.0CA-E3/9AT 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 SMCJ5.0CA-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ5.0CA-E3/9AT?
All SMCJ5.0CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ5.0CA-E3/9AT, 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 SMCJ5.0CA-E3/9AT part is unused and in its original packaging.
Return procedure for SMCJ5.0CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ5.0CA-E3/9AT Tags
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