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Vishay General Semiconductor - Diodes Division SMCJ36CA-E3/57T
- Part No.:
- SMCJ36CA-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36CA-E3/57T.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,095
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Product details
Overview
SMCJ36CA-E3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients up to 1500 W peak pulse power with 58.1 V maximum clamping voltage at 25.8 A peak pulse current, 36 V standoff voltage, and -55 °C to +150 °C operating junction temperature - deployed in automotive sensor signal line protection.
For engineers reviewing the SMCJ36CA-E3/57T datasheet, SMCJ36CA-E3/57T pinout, SMCJ36CA-E3/57T application, or SMCJ36CA-E3/57T equivalent, key selection criteria include bidirectional clamping capability, 1500 W 10/1000 μs surge rating, RoHS-compliant matte tin terminations, MSL Level 1 moisture sensitivity, and AEC-Q101 qualification eligibility via HE3 suffix variants.
Technical Context
This bidirectional TVS diode operates symmetrically in both polarities, with breakdown voltage range of 40.0 V to 44.2 V at 1 mA test current, 36 V maximum reverse standoff voltage, and 58.1 V clamping voltage at 25.8 A peak pulse current under 10/1000 μs waveform. Its glass-passivated junction ensures stable avalanche performance and low incremental surge resistance.
Thermal design relies on RθJA = 75 °C/W (typical, on recommended 8.0 mm × 8.0 mm copper pads) and RθJL = 15 °C/W, enabling reliable operation up to TJ = 150 °C. It meets J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before significant leakage; defines safe working margin below clamping threshold |
| VBR min/max | 40.0 V / 44.2 V at 1 mA - Confirmed breakdown voltage range ensuring predictable avalanche initiation across production lot |
| VC @ IPPM | 58.1 V at 25.8 A - Clamped voltage during 10/1000 μs transient; limits stress on downstream ICs or MOSFETs |
| PPPM | 1500 W - Peak pulse power handling per single transient; supports high-energy ESD and load-dump events |
| IPPM | 25.8 A - Peak surge current capability under standard 10/1000 μs waveform; determines minimum trace width and PCB layout robustness |
| TJ range | -55 °C to +150 °C - Full automotive-grade junction temperature range; enables under-hood and engine-control module deployment |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated pick-and-place |
Pinout & Package
SMCJ36CA-E3/57T uses the SMC (DO-214AB) package: a two-terminal, bidirectional device with no polarity marking - terminals are symmetrical and interchangeable. The case is molded epoxy meeting UL 94 V-0 flammability rating; leads are matte tin plated, solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Common transient path terminal | Both terminals function identically; connected across protected line and ground (or between differential lines); no cathode band marking |
| Case (cathode side in unidirectional variant) | Non-functional mechanical interface | Not electrically connected; serves only as thermal and mechanical anchor; no internal connection to silicon die |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables symmetric protection on AC lines, data buses, or floating sensor outputs without polarity concerns |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Combination Wave surges in automotive ECUs |
| Low clamping ratio (VC/VWM = 1.61) | Minimizes overvoltage exposure to protected ICs while maintaining sufficient margin above normal operating voltage |
| AEC-Q101 qualification path | HE3/HM3 suffix variants are qualified for automotive applications; E3/57T is RoHS-compliant commercial grade with identical construction |
| MSL Level 1 rating | Allows unlimited floor life and reflow without baking; simplifies SMT manufacturing flow for high-reliability production |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, or position sensors in engine control modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between sensor output and ground, limiting transients to ≤58.1 V during 10/1000 μs surges. Use Value: Prevents latch-up or gate oxide damage in downstream op-amps or ADC inputs by holding voltage below absolute maximum ratings. | Use Scenario: Safeguarding CANH/CANL differential pair in industrial PLC communications modules against EFT and surge coupling from adjacent motor drives. IC Role / Device Role / Timing Role: Paired SMCJ36CA-E3/57T devices (one across CANH-GND, one across CANL-GND) provide common-mode transient suppression. Use Value: Maintains CAN bus signal integrity during 1 kV/500 A surge events per IEC 61000-4-5, avoiding communication dropout or node reset. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side DC input protection in USB-C PD adapters where 36 V rail powers GaN controllers and monitoring ICs. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between 36 V rail and chassis ground to absorb switching noise and external surge injection. Use Value: Limits voltage excursions to 58.1 V during 1500 W transients, preserving controller reliability without requiring oversized input capacitors. | Use Scenario: Front-end protection on 48 V DC power feeds to telecom line cards subjected to lightning-induced surges on building entry points. IC Role / Device Role / Timing Role: Primary-stage clamp on -48 V supply rail, coordinated with upstream MOVs and gas discharge tubes in multi-stage architecture. Use Value: Provides fast-response secondary clamping with <1 ns response time, reducing let-through energy to downstream DC/DC converters by >60%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC36CA | Same VWM (36 V), lower PPPM (600 W), smaller SMA package (DO-214AC), higher VC (64.5 V) | Limited to lower-energy transients; unsuitable for automotive load dump or industrial 4 kV surge testing | Select when board space is constrained and surge threat level is limited to IEC 61000-4-2 ESD only |
| 1.5KE36CA | Same VWM (36 V), same PPPM (1500 W), through-hole DO-201 package, higher VC (58.1 V → 64.5 V), slower response due to lead inductance | Requires manual or wave soldering; not suitable for high-density SMT designs or automated assembly | Select only for legacy through-hole systems or prototyping where rework tolerance outweighs density and speed needs |
Compared with SAC36CA and 1.5KE36CA, SMCJ36CA-E3/57T delivers identical clamping voltage and superior surge robustness in a compact, automated-assembly-ready SMC package - making it optimal for new automotive and industrial SMT designs requiring AEC-Q101 scalability and 1500 W immunity.
Availability
SMCJ36CA-E3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, consumer power adapter inputs, and telecom line card protection requiring stable component supply and full traceability.
Supply support for SMCJ36CA-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and automotive qualification.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power transient suppression in harsh environments including automotive powertrain, industrial automation, and infrastructure equipment.
FAQ
What is the clamping voltage of SMCJ36CA-E3/57T at its rated peak pulse current?
The SMCJ36CA-E3/57T has a maximum clamping voltage (VC) of 58.1 V at 25.8 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024 (Document Number: 88394). The clamping voltage directly defines the upper voltage limit imposed on protected circuitry during surge events, making it critical for validating compatibility with downstream IC absolute maximum ratings. SMCJ36CA-E3/57T maintains this performance across its full operating temperature range.
Is SMCJ36CA-E3/57T suitable for automotive applications?
SMCJ36CA-E3/57T itself is RoHS-compliant commercial-grade (E3 suffix), but shares identical electrical and mechanical specifications with AEC-Q101-qualified variants like SMCJ36CAHE3_A/H. Its 1500 W surge rating, -55 °C to +150 °C junction temperature range, MSL Level 1 rating, and glass-passivated junction meet core automotive requirements. For production automotive use, specify the HE3 or HM3 suffix; SMCJ36CA-E3/57T is ideal for pre-qualification testing, industrial equivalents, or cost-sensitive non-safety-critical automotive subsystems where full AEC-Q101 documentation is not mandated.
How does the bidirectional configuration of SMCJ36CA-E3/57T affect PCB layout?
The bidirectional configuration of SMCJ36CA-E3/57T eliminates polarity constraints: both terminals are functionally identical, and no cathode band marking is present on the SMC (DO-214AB) case. This allows placement across any two nodes requiring symmetric transient suppression - such as between a signal line and ground, or across differential pairs - without orientation verification. Layout requires only 8.0 mm × 8.0 mm copper pads per terminal per Vishay's recommended footprint, with no keep-out zones for polarity markings. SMCJ36CA-E3/57T simplifies routing and reduces assembly errors in high-volume SMT lines.
What is the thermal resistance of SMCJ36CA-E3/57T, and how does it impact power derating?
SMCJ36CA-E3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on Vishay's recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, and junction-to-lead resistance (RθJL) of 15 °C/W. These values define the steady-state power dissipation limit: at 25 °C ambient, the 6.5 W rated power (PD) corresponds to ~488 °C junction rise - but since TJmax is 150 °C, continuous DC power must be strictly limited. For transient suppression, thermal mass dominates; the 1500 W rating applies only to short pulses (<50 ms), with derating above 25 °C ambient per Figure 2 in the datasheet. SMCJ36CA-E3/57T's low RθJL supports effective heat transfer to PCB copper during repetitive surges.
Can SMCJ36CA-E3/57T replace unidirectional TVS diodes in existing designs?
SMCJ36CA-E3/57T cannot directly replace unidirectional TVS diodes (e.g., SMCJ36A) in circuits relying on DC blocking or forward conduction paths, because its bidirectional structure conducts in both directions above VBR. In AC-coupled or floating signal lines - such as RS-485, CAN, or sensor bridges - it is a functional upgrade offering symmetric protection. However, in DC-biased rails where unidirectional devices block reverse leakage during normal operation, substituting SMCJ36CA-E3/57T would introduce unintended conduction paths. Always verify bias conditions and leakage behavior using the 1.0 μA max reverse leakage at VWM specified for SMCJ36CA-E3/57T before replacement.
SMCJ36CA-E3/57T 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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 25.8A
- 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)
SMCJ36CA-E3/57T FAQ
1.How can I place an order for SMCJ36CA-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36CA-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 SMCJ36CA-E3/57T reliable?
The price and inventory of SMCJ36CA-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 SMCJ36CA-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ36CA-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36CA-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36CA-E3/57T?
SMCJ36CA-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36CA-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 SMCJ36CA-E3/57T?
For technical support, including SMCJ36CA-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36CA-E3/57T requirements.
6.How does Aetrix verify that SMCJ36CA-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ36CA-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 SMCJ36CA-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ36CA-E3/57T?
All SMCJ36CA-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36CA-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 SMCJ36CA-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ36CA-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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