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Vishay General Semiconductor - Diodes Division 1.5SMC62CA-E3/9AT
- Part No.:
- 1.5SMC62CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC62CA-E3/9AT.pdf
- Description:
- TVS DIODE 53VWM 85VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,497
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Product details
Overview
1.5SMC62CA-E3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 53.0 V standoff voltage (VWM), 65.1 V maximum breakdown voltage (VBR), 85.0 V clamping voltage (VC) at 17.6 A peak pulse current, and 1500 W peak pulse power capability with 10/1000 µs waveform - ideal for automotive sensor line and industrial I/O port protection.
For engineers reviewing the 1.5SMC62CA-E3/9AT datasheet, 1.5SMC62CA-E3/9AT pinout, 1.5SMC62CA-E3/9AT application, or 1.5SMC62CA-E3/9AT equivalent, key selection criteria include bidirectional clamping symmetry, low clamping ratio (VC/VWM = 1.60), MSL Level 1 moisture sensitivity, RoHS-compliant matte tin terminations, and AEC-Q101 qualification eligibility via HE3/HM3 variants.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping performance regardless of transient polarity. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while the SMC package provides low thermal resistance (RθJL = 15 °C/W) and supports automated placement on PCBs with 8.0 mm × 8.0 mm copper pads per terminal.
The device complies with UL 497B for protector classification and meets JESD201 Class 2 whisker resistance. It is rated for -65 °C to +150 °C operating junction temperature, with derated peak pulse power above 25 °C per Figure 2 and 0.01% duty cycle repetitive surge capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 53.0 V - maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 48 V nominal systems. |
| VBR min/max | 58.9 V / 65.1 V at 1.0 mA test current - tight breakdown tolerance ensures predictable turn-on behavior across production lots. |
| VC @ IPPM | 85.0 V at 17.6 A - low clamping voltage limits stress on downstream ICs during 10/1000 µs transients. |
| PPPM | 1500 W - peak pulse power rating enables protection against severe lightning-induced surges (IEC 61000-4-5 Level 4). |
| Package | SMC (DO-214AB) - surface-mount package with 7.75 mm × 6.22 mm footprint, compatible with standard reflow profiles and MSL Level 1 handling. |
| Temperature Range | -65 °C to +150 °C - wide junction temperature range supports under-hood automotive and industrial environments. |
| RoHS Status | RoHS-compliant (E3 suffix), halogen-free option available (M3); matte tin plating meets J-STD-002 solderability requirements. |
Pinout & Package
SMC (DO-214AB) package with two terminals: symmetrical bidirectional configuration has no polarity marking; both ends function identically as anode/cathode depending on transient polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on applied transient polarity; no band marking required. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; forms symmetrical clamping path across protected line pair (e.g., RS-485 A/B). |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM performance in both directions - eliminates need for polarity-aware layout in differential interfaces. |
| 1500 W peak pulse power | Withstands 10/1000 µs surges up to 17.6 A without degradation - suitable for IEC 61000-4-5 open-circuit voltage testing. |
| Low clamping ratio | VC/VWM = 1.60 - minimizes voltage overshoot during clamping, reducing risk of latch-up or damage to 5 V/3.3 V logic interfaces. |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/60% RH - simplifies manufacturing logistics and eliminates bake requirements prior to reflow. |
| AEC-Q101 qualification path | HE3/HM3 variants available - enables direct use in automotive ECUs requiring qualified TVS components for CAN, LIN, or sensor lines. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed across sensor signal and ground to clamp transients before they reach ADC input or signal conditioning circuitry. Use Value: Maintains signal integrity by limiting transient voltage to 85.0 V, well below typical 100 V absolute maximum ratings of automotive op-amps and ADC drivers. |
Use Scenario: Safeguarding full-duplex RS-485 transceivers in factory automation PLCs subjected to EFT bursts and lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Connected between A and B differential lines to suppress common-mode transients while preserving signal swing and timing margins. Use Value: Symmetrical clamping ensures equal protection on both lines without skew or DC bias shift, preserving differential receiver common-mode rejection. |
| Telecom Power Line Surge | Consumer USB Port ESD |
|
Use Scenario: Front-end protection of PoE-powered network switches where 48 V DC supply lines are vulnerable to induced surges from nearby AC mains or lightning. IC Role / Device Role / Timing Role: Placed across DC input rails to shunt high-energy transients away from DC-DC converters and Ethernet PHYs. Use Value: 1500 W rating handles multi-kV surges without failure, while 53.0 V VWM allows safe operation with 57 V max PoE+ voltage. |
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D- lines in smart home hubs, supplementing internal I/O ESD cells. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed adjacent to connector to absorb ±15 kV contact discharge per IEC 61000-4-2. Use Value: Sub-1 ns response captures fast ESD events before internal clamp diodes activate, reducing stress on USB transceiver ESD structures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CA | Same bidirectional function but SMB package (smaller footprint, lower 600 W PPPM); VWM = 55.1 V, VC = 103 V @ 9.2 A. | Limited to lower-energy transients (IEC 61000-4-5 Level 2); unsuitable for 48 V PoE+ or automotive load dump. | Select when board space is constrained and surge energy is <600 W; verify clamping margin with downstream IC VDSM. |
| 1.5KE62CA | Through-hole DO-201 package; same VWM/VBR/VC specs but higher thermal mass; PPPM = 1500 W, IPPM = 17.6 A. | Requires wave soldering or hand assembly; not compatible with automated SMT lines; less suitable for high-density layouts. | Choose for legacy through-hole designs or prototyping where reflow compatibility is not required; same electrical protection performance. |
Compared with SMBJ64CA and 1.5KE62CA, the 1.5SMC62CA-E3/9AT delivers identical 1500 W surge capability in a compact, reflow-compatible SMC package with tighter VBR tolerance and lower clamping voltage - making it optimal for space-constrained, high-reliability SMT applications demanding full IEC 61000-4-5 Level 4 compliance.
Availability
1.5SMC62CA-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial RS-485 interface hardening, telecom PoE line surge suppression, and consumer USB port ESD mitigation requiring stable component supply and long-term lifecycle support.
Supply support for 1.5SMC62CA-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, rectifiers, TVS devices, and optoelectronics with emphasis on reliability and automotive-grade qualification.
The 1.5SMC Series was developed specifically for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness, repeatability, and AEC-Q101 readiness are critical.
FAQ
What is the clamping voltage of the 1.5SMC62CA-E3/9AT and how does it protect downstream circuits?
The 1.5SMC62CA-E3/9AT clamps at 85.0 V when subjected to its rated 17.6 A peak pulse current (10/1000 µs waveform). This clamping voltage is the maximum voltage that will appear across protected lines during a surge event, ensuring downstream ICs - such as RS-485 transceivers or automotive sensor signal conditioners - remain within their absolute maximum voltage ratings. Its low VC/VWM ratio of 1.60 provides a tight safety margin relative to the 53.0 V standoff voltage.
Is the 1.5SMC62CA-E3/9AT suitable for automotive applications?
Yes - the 1.5SMC62CA-E3/9AT is part of Vishay's AEC-Q101-qualified 1.5SMC family (via HE3/HM3 variants), and its specifications align with automotive requirements: -65 °C to +150 °C operating range, MSL Level 1, and robust 1500 W surge capability suitable for ISO 7637-2 and IEC 61000-4-5 testing. While the E3 suffix denotes commercial grade, the identical die and packaging allow direct qualification path for automotive use.
How does the bidirectional design of the 1.5SMC62CA-E3/9AT differ from unidirectional TVS diodes?
Unlike unidirectional TVS diodes that conduct only in reverse bias (with cathode marking), the 1.5SMC62CA-E3/9AT functions identically in both polarities due to symmetrical junction construction - no polarity marking is present. This makes it ideal for protecting differential signal pairs (e.g., CAN, RS-485, USB) where transients can occur with either polarity, eliminating layout constraints and ensuring balanced clamping without DC bias effects.
What is the thermal resistance and power dissipation capability of the 1.5SMC62CA-E3/9AT?
The 1.5SMC62CA-E3/9AT has a typical junction-to-leads thermal resistance (RθJL) of 15 °C/W and junction-to-ambient (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads. Its steady-state power dissipation (PD) is 6.5 W at TA = 50 °C. These values enable reliable operation in thermally demanding environments, especially when used with adequate PCB copper area for heat spreading.
Does the 1.5SMC62CA-E3/9AT meet industry safety and flammability standards?
Yes - the 1.5SMC62CA-E3/9AT's SMC (DO-214AB) molding compound meets UL 94 V-0 flammability rating, and the device carries Underwriters Laboratories recognition (QVGQ2) under UL 497B for protector classification. It is also compliant with RoHS Directive 2011/65/EU (E3 suffix) and JEDEC JESD201 Class 2 whisker resistance, supporting safety-critical and regulated end equipment.
1.5SMC62CA-E3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 53V
- Voltage - Breakdown (Min):
- 58.9V
- Voltage - Clamping (Max) @ Ipp:
- 85V
- Current - Peak Pulse (10/1000µs):
- 17.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC62CA-E3/9AT FAQ
1.How can I place an order for 1.5SMC62CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC62CA-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 1.5SMC62CA-E3/9AT reliable?
The price and inventory of 1.5SMC62CA-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 1.5SMC62CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC62CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC62CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC62CA-E3/9AT?
1.5SMC62CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC62CA-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 1.5SMC62CA-E3/9AT?
For technical support, including 1.5SMC62CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC62CA-E3/9AT requirements.
6.How does Aetrix verify that 1.5SMC62CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC62CA-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 1.5SMC62CA-E3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC62CA-E3/9AT?
All 1.5SMC62CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC62CA-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 1.5SMC62CA-E3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC62CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC62CA-E3/9AT Tags
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