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Vishay General Semiconductor - Diodes Division SMBJ36CA-E3/5B
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- Part No.:
- SMBJ36CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36CA-E3/5B.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,175
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Product details
Overview
SMBJ36CA-E3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 36 V standoff voltage (VWM), 40.0–44.2 V breakdown voltage (VBR) at 1 mA, 58.1 V maximum clamping voltage (VC) at 10.3 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform). It protects MOSFETs, ICs, and sensor signal lines in industrial power supplies and telecom interfaces.
For engineers reviewing the SMBJ36CA-E3/5B datasheet, SMBJ36CA-E3/5B pinout, SMBJ36CA-E3/5B application, or SMBJ36CA-E3/5B equivalent, key selection criteria include bidirectional clamping capability, 58.1 V clamping under 10.3 A surge, RoHS-compliant matte tin terminations, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, delivering identical electrical characteristics forward and reverse - critical for AC-coupled or floating signal line protection. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM), while the low incremental surge resistance enables tight clamping during fast transients.
The device meets JESD22-B102 solderability and JESD201 Class 2 whisker resistance standards, and its thermal resistance (RθJA = 100 °C/W) is specified for mounting on 0.2" × 0.2" copper pads. It is rated for continuous operation from –55 °C to +150 °C junction temperature, with derating above 25 °C ambient per Figure 2 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 36 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 40.0–44.2 V at 1 mA - Confirmed breakdown range ensuring reliable turn-on during overvoltage events |
| VC (Clamping Voltage) | 58.1 V at IPPM = 10.3 A - Peak voltage seen by protected circuit during 600 W transient; limits stress on downstream components |
| PPPM (Peak Pulse Power) | 600 W (10/1000 µs waveform) - Sustains high-energy surges common in inductive switching and lightning-induced transients |
| IPPM (Peak Pulse Current) | 10.3 A - Maximum non-repetitive surge current the device safely clamps without degradation |
| Leakage Current (ID) | <1.0 µA at 36 V - Negligible power loss and signal distortion in standby or low-power modes |
| TJmax | +150 °C - Enables use in high-temperature environments such as enclosed industrial enclosures or near power converters |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), with 1.52 mm minimum lead width and 2.159 mm max pad-to-pad distance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; symmetrical with cathode in bidirectional operation | Enables clamping during positive- and negative-going transients without external polarity consideration |
| Cathode | Current exit terminal in forward bias; electrically identical to anode for bidirectional devices | Eliminates need for orientation-aware layout; supports AC line or differential signal protection |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - simplifies protection design for AC, differential, or floating rails |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surge (4 kV/2 Ω) on 24 V systems when properly laid out - meets industrial immunity requirements |
| MSL Level 1 rating | Reflow-compatible up to 260 °C peak without baking - supports standard lead-free reflow profiles without moisture-related defects |
| RoHS-compliant matte tin leads | Solderable per J-STD-002 and JESD 22-B102 - ensures robust wetting and long-term interconnect reliability in high-volume manufacturing |
| Low clamping ratio (VC/VWM ≈ 1.61) | Minimizes overvoltage exposure to protected ICs - critical for 3.3 V or 5 V logic interfacing with 24 V field wiring |
Applications
| Industrial PLC I/O Protection | Telecom Line Interface |
|---|---|
|
Use Scenario: Protecting 24 V digital input modules from inductive kickback and EFT bursts in factory automation cabinets. IC Role / Device Role / Timing Role: Bidirectional TVS placed across input terminals to clamp ±1 kV EFT and ±2 kV surge events before they reach optocoupler or MCU GPIO. Use Value: Limits voltage to ≤58.1 V during 10.3 A transients, preventing latch-up or gate oxide damage in downstream interface ICs. |
Use Scenario: Shielding RS-485 transceiver bus lines against lightning-induced surges in outdoor base station backhaul links. IC Role / Device Role / Timing Role: Paired SMBJ36CA-E3/5B devices on A/B lines provide symmetrical clamping to maintain differential integrity during common-mode transients. Use Value: Maintains <1.5 V differential noise margin under 600 W surge due to matched bidirectional VC and low leakage (<1 µA). |
| Automotive Body Control Module | Consumer Appliance Motor Driver |
|
Use Scenario: Safeguarding LIN bus nodes in door module ECUs exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Clamps transients on LIN signal line between microcontroller and transceiver, operating within AEC-Q101-qualified variants (HE3/HM3 suffixes). Use Value: Withstands 100 A IFSM (unidirectional reference) and maintains <1 µA leakage at 12 V battery rail - avoids false wake-ups. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machine control boards. IC Role / Device Role / Timing Role: Mounted across motor terminals to absorb inductive energy during PWM switching, reducing EMI and MOSFET stress. Use Value: 58.1 V clamping prevents drain-source avalanche in 60 V-rated MOSFETs, extending lifetime under repeated 10.3 A surge conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA-M3/5B | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package | No difference in circuit function or layout; selected where halogen-free compliance is mandated | Choose M3/5B for green manufacturing programs requiring halogen-free bill-of-materials |
| SAC36CA-13-F | Same VWM/VC but lower PPPM (400 W), smaller SOD-123FL package (lower IPPM = 6.8 A) | Not suitable for 600 W surge environments; limited to space-constrained, lower-energy applications | Select only if board area is critical and surge threat level is ≤400 W (e.g., internal low-voltage signal lines) |
Compared with SMBJ36CA-E3/5B, the M3/5B offers identical protection performance with halogen-free construction, while SAC36CA-13-F trades 33 % lower surge capacity and 40 % smaller footprint - making it viable only where energy threats are reduced and PCB real estate is constrained.
Availability
SMBJ36CA-E3/5B is available at Aetrix Electronics and suitable for industrial PLC I/O protection, telecom line interface hardening, and automotive body control module designs requiring stable component supply and full traceability.
Supply support for SMBJ36CA-E3/5B 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, and protection devices with emphasis on reliability, power handling, and AEC-Q101 qualification.
The SMBJ series delivers high-power transient suppression in compact surface-mount packages, engineered specifically for industrial, automotive, and telecom systems demanding robust ESD and surge immunity without sacrificing board space.
FAQ
What is the clamping voltage of SMBJ36CA-E3/5B at its rated peak pulse current?
The SMBJ36CA-E3/5B has a maximum clamping voltage (VC) of 58.1 V at its rated peak pulse current (IPPM) of 10.3 A, measured using the standardized 10/1000 µs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuits during surge events and is confirmed in the Electrical Characteristics table of Vishay document 88392.
Is SMBJ36CA-E3/5B suitable for automotive applications?
SMBJ36CA-E3/5B itself is commercial-grade (E3 suffix); however, the SMBJ36CA-HE3_B/I variant is AEC-Q101 qualified for automotive use. The SMBJ36CA-E3/5B shares identical electrical parameters and SMB package, but lacks automotive qualification documentation and extended temperature validation. For under-hood or safety-critical modules, specify HE3 or HM3 suffixes instead of E3/5B.
What does the "CA" suffix indicate in SMBJ36CA-E3/5B?
The "CA" suffix in SMBJ36CA-E3/5B denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both polarities, with identical breakdown, clamping, and leakage characteristics for positive and negative voltage excursions. This eliminates polarity concerns during PCB layout and supports AC-coupled or differential signal line protection.
What is the maximum operating temperature for SMBJ36CA-E3/5B?
The SMBJ36CA-E3/5B has a maximum junction temperature (TJmax) of +150 °C and an operating junction/storage temperature range of –55 °C to +150 °C. Its thermal resistance (RθJA) is 100 °C/W when mounted on 0.2" × 0.2" copper pads, and derating curves in Figure 2 of the datasheet must be applied for ambient temperatures above 25 °C.
How does SMBJ36CA-E3/5B differ from unidirectional SMBJ36A-E3/5B?
The SMBJ36CA-E3/5B is bidirectional with no polarity marking and symmetrical electrical behavior, whereas SMBJ36A-E3/5B is unidirectional with a cathode band and conducts only in reverse bias. Key differences include: SMBJ36A specifies IFSM = 100 A (8.3 ms half-sine) and VF ≤ 3.5 V at 50 A, while SMBJ36CA omits those parameters - confirming its exclusive role as a clamping-only device without forward conduction intent.
SMBJ36CA-E3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- 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):
- 10.3A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMBJ)
SMBJ36CA-E3/5B FAQ
1.How can I place an order for SMBJ36CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36CA-E3/5B 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 SMBJ36CA-E3/5B reliable?
The price and inventory of SMBJ36CA-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ36CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ36CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36CA-E3/5B?
SMBJ36CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36CA-E3/5B 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 SMBJ36CA-E3/5B?
For technical support, including SMBJ36CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36CA-E3/5B requirements.
6.How does Aetrix verify that SMBJ36CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ36CA-E3/5B 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 SMBJ36CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ36CA-E3/5B?
All SMBJ36CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36CA-E3/5B, 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 SMBJ36CA-E3/5B part is unused and in its original packaging.
Return procedure for SMBJ36CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36CA-E3/5B Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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