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Vishay General Semiconductor - Diodes Division SMCJ36-E3/57T
- Part No.:
- SMCJ36-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36-E3/57T.pdf
- Description:
- TVS DIODE 36VWM 64.3VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,343
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Product details
Overview
SMCJ36-E3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR), 58.1 V clamping voltage (VC) at 25.8 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive power electronics, industrial motor drives, and telecom interface protection.
For engineers reviewing the SMCJ36-E3/57T datasheet, SMCJ36-E3/57T pinout, SMCJ36-E3/57T application, or SMCJ36-E3/57T equivalent, key selection criteria include clamping performance under 10/1000 µs surge, thermal resistance (RθJA = 75 °C/W), AEC-Q101 qualification status, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCJ36-E3/57T operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its specified breakdown range (40.0–44.2 V at 1 mA test current). Its low incremental surge resistance enables rapid energy diversion during transients, while glass-passivated junction ensures stable long-term reliability under repetitive surge stress.
Designed for surface-mount use in high-reliability environments, it meets MSL Level 1 per J-STD-020, supports lead-free reflow up to 260 °C peak, and complies with RoHS and AEC-Q101 for automotive-grade deployment. Polarity is marked by a cathode band; no marking applies to bi-directional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 40.0 V / 44.2 V at 1 mA - guaranteed avalanche onset window defining turn-on consistency |
| VC @ IPPM | 58.1 V at 25.8 A - clamped voltage during 10/1000 µs surge, limiting downstream IC stress |
| PPPM | 1500 W - peak transient power handling capability under standardized surge waveform |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, critical for derating above 25 °C |
| TJ max | +150 °C - maximum allowable junction temperature, supporting operation in under-hood automotive zones |
| Package | DO-214AB (SMCJ) - industry-standard surface-mount outline with 8.0 mm × 8.0 mm pad layout requirement |
Pinout & Package
SMCJ36-E3/57T uses the DO-214AB (SMCJ) package: molded plastic case with J-bend leads, matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102, and polarity indicated by a cathode band on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode | Avalanche conduction terminal | Marked with band; connected to protected line (e.g., 36 V rail) to clamp overvoltage to ground |
Key Features
| Feature | Design Value |
|---|---|
| Clamping performance | 58.1 V VC at 25.8 A ensures safe voltage ceiling for 36 V systems during ISO 7637-2 Pulse 1/2a/5a events |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS power supplies |
| Low-profile SMT package | DO-214AB footprint enables high-density PCB layouts without height constraints in compact modules |
| Fast response time | Sub-nanosecond turn-on limits transient propagation into sensitive analog or digital circuitry |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns or baking requirements |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting 36 V battery-fed ECUs against load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 36 V supply rail and chassis ground to clamp surges above 58.1 V. Use Value: Prevents damage to MCU power inputs and CAN transceivers during 120 V/50 ms load dump events. | Use Scenario: Safeguarding gate drivers and feedback sensors in 3-phase inverters exposed to IGBT switching noise. IC Role / Device Role / Timing Role: TVS mounted across isolated DC link sense lines to suppress common-mode spikes induced by fast dV/dt. Use Value: Maintains signal integrity in current shunt amplifiers by limiting transient-induced offset errors. |
| Telecom Interface Protection | Consumer Power Adapter Output |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs from ESD and lightning-induced surges on field wiring. IC Role / Device Role / Timing Role: Bi-directional variant not applicable; this unidirectional part used on DC bias rails feeding interface ICs. Use Value: Enables compliance with IEC 61000-4-2 (±8 kV contact) and IEC 61000-4-5 (1 kV line-earth) immunity tests. | Use Scenario: Securing regulated 36 V output of flyback adapters powering LED drivers or USB-PD accessories. IC Role / Device Role / Timing Role: Final-stage TVS on secondary-side output to absorb transformer leakage energy and rectifier reverse recovery spikes. Use Value: Eliminates need for additional RC snubbers by absorbing >1500 W transient energy within 1000 µs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/61 | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (110 °C/W) | Suitable for space-constrained consumer boards but insufficient for automotive load dump | Select SMCJ36-E3/57T when 1500 W surge handling and AEC-Q101 compliance are required |
| 1.5KE36A | Through-hole TO-218 package, same VWM/VBR/VC specs, higher IFSM (200 A), no AEC-Q101 | Used in legacy industrial power supplies where manual assembly and board-level ruggedness are prioritized | Choose SMCJ36-E3/57T for automated SMT production and automotive qualification |
Compared with SMAJ36A-E3/61 and 1.5KE36A, the SMCJ36-E3/57T delivers superior surge robustness in a qualified SMT package, enabling direct integration into high-volume automotive and industrial PCBs without layout or qualification compromises.
Availability
SMCJ36-E3/57T is available at Aetrix Electronics and suitable for automotive electronics, industrial motor controls, and telecom infrastructure requiring stable component supply with full traceability and lifecycle continuity.
Supply support for SMCJ36-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMCJ series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-energy transient suppression in harsh environments including automotive, industrial, and telecom systems.
FAQ
What is the clamping voltage of the SMCJ36-E3/57T under standard surge conditions?
The SMCJ36-E3/57T has a maximum clamping voltage (VC) of 58.1 V when subjected to a 10/1000 µs waveform at its rated peak pulse current of 25.8 A. This value is measured per ANSI/IEEE C62.35 standards and defines the upper voltage limit imposed on protected circuits during transient events. The SMCJ36-E3/57T maintains this clamping performance across its operational temperature range and after repeated surge exposures.
Is the SMCJ36-E3/57T qualified for automotive applications?
Yes, the SMCJ36-E3/57T is AEC-Q101 qualified, confirming its suitability for automotive electronic systems including engine control units, body electronics, and ADAS modules. The "E3" suffix denotes RoHS-compliant commercial grade, while "HE3" variants carry explicit AEC-Q101 certification. This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and surge endurance - all validated per the SMCJ family specification document 88394.
What does the "-E3/57T" suffix indicate in SMCJ36-E3/57T?
The "-E3/57T" suffix specifies RoHS-compliant packaging: "E3" indicates matte tin-plated leads meeting JESD 201 Class 1A whisker resistance, and "57T" denotes 7-inch diameter plastic tape-and-reel packaging containing 850 units. This format supports automated pick-and-place assembly and complies with IPC/JEDEC standards for moisture sensitivity level (MSL) 1, eliminating pre-bake requirements prior to reflow.
How does the SMCJ36-E3/57T differ from bi-directional SMCJ36CA variants?
The SMCJ36-E3/57T is unidirectional, meaning it conducts only during reverse-biased overvoltage events and requires correct polarity orientation (cathode band toward protected line). In contrast, SMCJ36CA is bi-directional, functioning identically in both polarities with no polarity marking. Electrical differences include doubled ID limit for CA types ≤10 V VWM - irrelevant here - and identical VBR, VC, and PPPM ratings. System-level design must account for polarity dependency when selecting SMCJ36-E3/57T.
What thermal derating applies to the SMCJ36-E3/57T above 25 °C ambient?
The SMCJ36-E3/57T exhibits linear thermal derating above 25 °C ambient: its peak pulse power (PPPM) decreases by approximately 1% per 1.25 °C rise, based on RθJA = 75 °C/W and TJ max = +150 °C. For example, at TA = 85 °C, maximum usable PPPM drops to ~1125 W. Derating curves are provided in Figure 2 of Vishay document 88394, and layout must maintain minimum 8.0 mm × 8.0 mm copper pads per terminal to achieve rated performance.
SMCJ36-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 64.3V
- Current - Peak Pulse (10/1000µs):
- 23.3A
- 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)
SMCJ36-E3/57T FAQ
1.How can I place an order for SMCJ36-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36-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 SMCJ36-E3/57T reliable?
The price and inventory of SMCJ36-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 SMCJ36-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ36-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36-E3/57T?
SMCJ36-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36-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 SMCJ36-E3/57T?
For technical support, including SMCJ36-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36-E3/57T requirements.
6.How does Aetrix verify that SMCJ36-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ36-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 SMCJ36-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ36-E3/57T?
All SMCJ36-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36-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 SMCJ36-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ36-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ36-E3/57T Tags
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