My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5SMC68CA-E3/57T
- Part No.:
- 1.5SMC68CA-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC68CA-E3/57T.pdf
- Description:
- TVS DIODE 58.1VWM 92VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:1,460
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5SMC68CA-E3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 68 V breakdown voltage (VBR min/max = 64.6–71.4 V), 1500 W peak pulse power (10/1000 µs), clamping voltage of 92.0 V at 16.3 A, and operates across –65 °C to +150 °C. It is used to protect automotive sensor interfaces and industrial I/O circuits against lightning-induced transients and inductive switching spikes.
For engineers reviewing the 1.5SMC68CA-E3/57T datasheet, 1.5SMC68CA-E3/57T pinout, 1.5SMC68CA-E3/57T application, or 1.5SMC68CA-E3/57T equivalent, key selection criteria include bidirectional clamping capability, SMC (DO-214AB) package compatibility, 10/1000 µs waveform handling, low leakage (<1 µA at 58.1 V), and AEC-Q101 qualification readiness via HE3/HM3 variants.
Technical Context
This device functions as a voltage-clamped shunt protector: when reverse (or forward, in bidirectional mode) transient voltage exceeds VBR, it avalanches rapidly to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable breakdown and low leakage, while the SMC package supports automated placement and meets MSL Level 1 (260 °C peak reflow).
Clamping performance is defined under standardized 10/1000 µs double-exponential surge waveforms; thermal resistance is RθJA = 75 °C/W (on 8.0 mm × 8.0 mm copper pads) and RθJL = 15 °C/W. The CA suffix confirms bidirectional symmetry - electrical characteristics apply identically in both polarities, with no polarity marking on the case.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 64.6 V / 71.4 V at 1.0 mA - defines precise avalanche initiation threshold in both directions |
| VWM | 58.1 V - maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPPM | 92.0 V at 16.3 A - clamped voltage during full 1500 W surge, limiting stress on protected ICs |
| PPPM | 1500 W (10/1000 µs) - peak transient energy absorption capacity per pulse, duty cycle ≤ 0.01 % |
| ID @ VWM | <1.0 µA - ultra-low reverse leakage ensures minimal standby power loss in high-impedance circuits |
| TJ range | –65 °C to +150 °C - enables deployment in under-hood automotive and industrial environments |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 0.305" × 0.320" footprint and matte tin leads |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with glass passivated chip junction; terminals are matte tin plated, solderable per J-STD-002 and JESD 22-B102; polarity unmarked for bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; symmetrical terminal in bidirectional mode | One side of the anti-parallel PN junction pair - identical electrical behavior to Cathode under reverse bias |
| Cathode | Current exit point in forward bias; symmetrical terminal in bidirectional mode | Second side of the anti-parallel PN junction pair - functionally interchangeable with Anode for transient suppression |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both polarities - eliminates need for orientation-aware layout in AC or floating signal lines |
| 1500 W surge rating | Handles 16.3 A peak pulse current (10/1000 µs) without degradation - suitable for IEC 61000-4-5 Level 4 compliance designs |
| Low clamping ratio | VC/VBR ≈ 1.43 - tight voltage control minimizes overvoltage exposure to protected MOSFETs or microcontrollers |
| MSL Level 1 rating | Rated for peak reflow temperature of 260 °C - compatible with standard lead-free assembly processes without dry-pack requirements |
| AEC-Q101 ready | HE3/HM3 variants available - qualified for automotive powertrain and body electronics per stress test requirements |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional shunt clamp placed across differential signal pair or supply rail to limit transient overvoltage before it reaches sensitive input stages. Use Value: Clamps 10/1000 µs surges to ≤92.0 V, preventing latch-up or gate oxide damage in 5 V/12 V interface ICs while maintaining <1 µA leakage at 58.1 V. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring transients and relay coil flyback. IC Role / Device Role / Timing Role: Parallel-connected TVS on input terminal blocks to absorb >1 kV ring-wave surges per IEC 61000-4-4. Use Value: 1500 W peak power rating sustains repeated 16.3 A pulses without parameter shift, enabling long-term reliability in factory automation environments. |
| Telecom Line Card Surge Protection | Consumer Power Adapter Output Clamping |
Use Scenario: Secondary-side transient suppression on Ethernet PHY power rails and RS-485 data lines in base station line cards. IC Role / Device Role / Timing Role: Fast-response bidirectional clamp placed adjacent to connector to intercept lightning-induced common-mode surges before entering isolation barriers. Use Value: Sub-nanosecond response time and symmetric VBR ensure balanced clamping on twisted-pair lines, preserving signal integrity during 1.2/50 µs surges. |
Use Scenario: Output rail protection in 12 V/19 V AC-DC adapters for laptops and monitors against output short-circuit recovery spikes and external coupling. IC Role / Device Role / Timing Role: Low-leakage shunt device across regulated DC output to suppress overshoot during dynamic load changes or adapter hot-plug events. Use Value: 58.1 V stand-off allows safe operation with 19 V nominal outputs while clamping transients to 92.0 V - well below typical 100 V MOSFET drain ratings. |
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 | Lower peak power (600 W), smaller SMB package (DO-214AA), VC = 103 V @ 5.8 A | Targeted at space-constrained consumer electronics; insufficient for IEC 61000-4-5 Level 4 | Select when board area is critical and surge energy is ≤600 W; verify thermal derating on small pads |
| 1.5KE68CA | Through-hole TO-218 package, same VBR/VC, higher IFSM (200 A), but no RoHS-compliant E3 variant | Used in legacy industrial power supplies where manual assembly or high-reliability through-hole mounting is required | Choose for repair/refurbishment of existing through-hole designs or where vibration resistance outweighs SMT benefits |
Compared with SMBJ64CA and 1.5KE68CA, the 1.5SMC68CA-E3/57T delivers optimal balance of 1500 W surge capacity, SMC surface-mount scalability, RoHS compliance, and bidirectional symmetry - making it preferred for new automotive and industrial designs requiring AEC-Q101 readiness and automated manufacturing.
Availability
1.5SMC68CA-E3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, telecom line card protection, and consumer power adapter output clamping requiring stable component supply, consistent lot-to-lot parametric performance, and full traceability.
Supply support for 1.5SMC68CA-E3/57T 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, efficiency, and application-specific performance.
The 1.5SMC Series was developed to deliver high-power, surface-mount transient protection for automotive, industrial, and telecom systems where robustness, compact size, and AEC-Q101 qualification are essential design requirements.
FAQ
What is the exact breakdown voltage range for 1.5SMC68CA-E3/57T?
The 1.5SMC68CA-E3/57T has a guaranteed breakdown voltage range of 64.6 V to 71.4 V at 1.0 mA test current, as specified in the Vishay datasheet (Document Number: 88303, page 2). This VBR window applies identically in both directions due to its bidirectional construction, and is measured under standard TA = 25 °C conditions with proper thermal management.
Is 1.5SMC68CA-E3/57T RoHS-compliant and halogen-free?
Yes, the 1.5SMC68CA-E3/57T carries the "E3" suffix, indicating it is RoHS-compliant and commercial-grade per Vishay's ordering nomenclature. It is not halogen-free; for halogen-free compliance, the "M3" variant (e.g., 1.5SMC68CA-M3/57T) must be selected. Both meet JESD 201 Class 2 whisker resistance requirements.
Does 1.5SMC68CA-E3/57T have AEC-Q101 qualification?
The base 1.5SMC68CA-E3/57T is not AEC-Q101 qualified; however, Vishay offers AEC-Q101-qualified versions under the HE3 and HM3 suffixes (e.g., 1.5SMC68CAHE3_A/H). These variants undergo additional stress testing per AEC-Q101 and are designated for automotive powertrain and body electronics applications.
What is the maximum clamping voltage of 1.5SMC68CA-E3/57T and at what current?
The maximum clamping voltage (VC) of the 1.5SMC68CA-E3/57T is 92.0 V, measured at the peak pulse current (IPPM) of 16.3 A under a 10/1000 µs waveform. This value is guaranteed per the datasheet and reflects worst-case clamping performance under standardized surge conditions with proper PCB pad layout (8.0 mm × 8.0 mm copper).
Can 1.5SMC68CA-E3/57T be used in place of unidirectional TVS diodes like 1.5SMC68A-E3/57T?
No - the 1.5SMC68CA-E3/57T is strictly bidirectional and lacks polarity marking, whereas the unidirectional 1.5SMC68A-E3/57T has a cathode band and asymmetric conduction. Substituting them requires circuit-level validation: bidirectional use demands symmetric protection needs (e.g., AC lines), while unidirectional types are mandatory for DC rail protection with defined polarity.
1.5SMC68CA-E3/57T 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):
- 58.1V
- Voltage - Breakdown (Min):
- 64.6V
- Voltage - Clamping (Max) @ Ipp:
- 92V
- Current - Peak Pulse (10/1000µs):
- 16.3A
- 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)
1.5SMC68CA-E3/57T FAQ
1.How can I place an order for 1.5SMC68CA-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC68CA-E3/57T 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 1.5SMC68CA-E3/57T reliable?
The price and inventory of 1.5SMC68CA-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC68CA-E3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC68CA-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC68CA-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC68CA-E3/57T?
1.5SMC68CA-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC68CA-E3/57T 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 1.5SMC68CA-E3/57T?
For technical support, including 1.5SMC68CA-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC68CA-E3/57T requirements.
6.How does Aetrix verify that 1.5SMC68CA-E3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC68CA-E3/57T 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 1.5SMC68CA-E3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC68CA-E3/57T?
All 1.5SMC68CA-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC68CA-E3/57T, 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 1.5SMC68CA-E3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC68CA-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC68CA-E3/57T Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
