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Vishay General Semiconductor - Diodes Division SMBJ36C-E3/5B
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- Part No.:
- SMBJ36C-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36C-E3/5B.pdf
- Description:
- TVS DIODE 36VWM 64.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,732
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Product details
Overview
SMBJ36C-E3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 36 V standoff voltage (VWM), 40.0–44.2 V breakdown range (VBR at 1 mA), 58.1 V maximum clamping voltage (VC) at 10.3 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in industrial motor drives, automotive body control modules, and PoE-powered Ethernet interfaces.
For engineers reviewing the SMBJ36C-E3/5B datasheet, SMBJ36C-E3/5B pinout, SMBJ36C-E3/5B application, or SMBJ36C-E3/5B equivalent, key selection criteria include clamping performance under 10/1000 µs surge, thermal resistance (RθJA = 100 °C/W), RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, conducting only during reverse overvoltage events above its breakdown threshold while remaining high-impedance under normal bias. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), critical for protecting sensitive MOSFET gates and microcontroller I/O pins from ESD and inductive switching transients.
The device is rated for repetitive 600 W surges at 0.01% duty cycle and withstands 100 A non-repetitive forward surge (8.3 ms half-sine). Junction temperature range spans −55 °C to +150 °C, and it meets MSL Level 1 per J-STD-020 with 260 °C reflow peak tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 36 V systems. |
| VBR (min/max) | 40.0 V / 44.2 V at 1 mA - Confirmed breakdown range ensures predictable turn-on across production lot and temperature. |
| VC @ IPPM | 58.1 V at 10.3 A - Clamping voltage limits downstream IC stress during 10/1000 µs transients; enables design margin vs. 60 V absolute max ratings. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform supports IEC 61000-4-5 Level 4 surge immunity compliance. |
| IPPM | 10.3 A - Peak pulse current derived from PPPM/VC; validates protection capability against typical load-dump or inductive kick events. |
| RθJA | 100 °C/W - Thermal resistance determines junction temperature rise under sustained power dissipation; requires minimum 5.0 mm × 5.0 mm copper pad per terminal. |
| TJ max | +150 °C - Maximum junction temperature enables operation in under-hood automotive and industrial ambient environments. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking on unidirectional variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path (cathode-biased during clamping) | Connected to protected circuit ground or low-side return; establishes reference for reverse-bias clamping action. |
| Cathode | Reverse-bias input terminal | Connected to line being protected (e.g., 36 V supply rail); conducts avalanche current when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables compliance with IEC 61000-4-5 surge immunity testing up to Level 4 (4 kV line-to-earth) without derating. |
| Clamping voltage ≤ 58.1 V at 10.3 A | Provides ≥2.9 V headroom below typical 60 V absolute maximum ratings of industrial-grade MOSFETs and PMICs. |
| Glass-passivated junction | Ensures stable leakage current (<1.0 µA at 36 V) and long-term reliability under thermal cycling and humidity exposure. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements. |
| RoHS-compliant, matte tin plating | Guarantees solderability and intermetallic formation control per J-STD-002, eliminating Pb-based finish compatibility issues. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of 36 V DC bus against inductive kickback from solenoid valves and brushed DC motors. IC Role / Device Role / Timing Role: Unidirectional TVS placed between rail and ground to clamp transients exceeding 40 V within <1 ns. Use Value: Limits voltage overshoot to ≤58.1 V, preventing gate oxide rupture in 60 V-rated N-channel MOSFET drivers. |
Use Scenario: Guarding LIN bus transceiver inputs against battery load dump and jump-start surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on LIN line (VWM = 36 V) to absorb 10/1000 µs pulses up to 600 W. Use Value: Maintains signal integrity by clamping transients before they exceed transceiver's 40 V abs max rating. |
| Power over Ethernet (PoE) PSE | Industrial PLC Analog Input Modules |
|
Use Scenario: Secondary-side overvoltage suppression on 36 V auxiliary power rails derived from PoE injectors. IC Role / Device Role / Timing Role: Fast-response TVS shunting surge energy away from isolated DC-DC controllers and sense resistors. Use Value: Prevents latch-up in 36 V-input buck regulators by limiting transient excursions to 58.1 V for ≤1 ms. |
Use Scenario: Protecting 4–20 mA current loop receiver op-amps from field wiring transients in factory automation. IC Role / Device Role / Timing Role: Rail-to-ground TVS on analog input supply, activated only during >40 V overvoltage events. Use Value: Preserves 16-bit ADC accuracy by suppressing transients that would otherwise saturate front-end instrumentation amplifiers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A-E3/5B | Identical electrical specs and package; differs only in part suffix convention ('A' denotes unidirectional, 'C' is legacy alternate marking). | No functional difference; both rated for same 36 V VWM, 58.1 V VC, and 600 W PPPM. | Select SMBJ36A-E3/5B if sourcing from distributors listing 'A' suffix as primary SKU; identical performance and layout compatibility. |
| SMCJ36A-E3/57T | Same VWM and VC, but in larger SMC (DO-214AB) package with higher RθJA (65 °C/W) and 1500 W PPPM. | Used where higher single-pulse energy absorption is required (e.g., heavy industrial contactor switching), not for space-constrained designs. | Choose SMCJ36A-E3/57T only when board layout allows larger footprint and system-level surge tests exceed 600 W capability. |
Compared with SMBJ36C-E3/5B, SMBJ36A-E3/5B offers identical protection performance in the same SMB footprint, while SMCJ36A-E3/57T trades size for 2.5× higher pulse power - making the SMBJ36C-E3/5B optimal for compact, cost-sensitive 36 V rail protection where 600 W suffices.
Availability
SMBJ36C-E3/5B is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and Power over Ethernet (PoE) power supplies requiring stable component supply and RoHS-compliant manufacturing.
Supply support for SMBJ36C-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, thermal performance, and AEC-Q101 qualification.
The SMBJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where consistent clamping behavior and long-term stability under thermal stress are mandatory.
FAQ
What is the clamping voltage of SMBJ36C-E3/5B at its rated peak pulse current?
The SMBJ36C-E3/5B has a maximum clamping voltage (VC) of 58.1 V at 10.3 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuits during surge events. The SMBJ36C-E3/5B maintains this clamping performance across its full operating temperature range.
Is SMBJ36C-E3/5B RoHS-compliant and suitable for lead-free reflow?
Yes, SMBJ36C-E3/5B is RoHS-compliant (per Vishay's base P/N-E3 designation) and qualified for lead-free reflow with a maximum peak temperature of 260 °C, meeting MSL Level 1 per J-STD-020. Its matte tin-plated leads ensure reliable solderability in standard SMT processes without pre-baking. The SMBJ36C-E3/5B is fully compatible with IPC-J-STD-020-compliant assembly lines.
How does SMBJ36C-E3/5B differ from bidirectional variants like SMBJ36CA-E3/5B?
The SMBJ36C-E3/5B is unidirectional, meaning it clamps only during reverse-bias overvoltage events and blocks forward current beyond its VF (~3.5 V at 50 A). Bidirectional variants (e.g., SMBJ36CA-E3/5B) conduct in both directions and lack polarity marking. The SMBJ36C-E3/5B is selected for DC rail protection where polarity is fixed and forward conduction must be avoided.
What is the thermal resistance and recommended PCB layout for SMBJ36C-E3/5B?
The SMBJ36C-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To achieve rated power dissipation, use minimum 5.0 mm × 5.0 mm thermal pads with internal plane connections. The SMBJ36C-E3/5B thermal performance degrades significantly with smaller pads or no internal copper layers.
Can SMBJ36C-E3/5B be used in automotive applications?
The standard SMBJ36C-E3/5B is commercial-grade; however, Vishay offers AEC-Q101-qualified versions under ordering codes like SMBJ36AHE3_B/I. For automotive under-hood or body control module use, specify the HE3 or HM3 suffix variants. The SMBJ36C-E3/5B itself is not AEC-Q101 certified but may be used in non-safety-critical interior modules pending customer qualification.
SMBJ36C-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 64.3V
- Current - Peak Pulse (10/1000µs):
- 9.3A
- 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)
SMBJ36C-E3/5B FAQ
1.How can I place an order for SMBJ36C-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36C-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 SMBJ36C-E3/5B reliable?
The price and inventory of SMBJ36C-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 SMBJ36C-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ36C-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36C-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36C-E3/5B?
SMBJ36C-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36C-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 SMBJ36C-E3/5B?
For technical support, including SMBJ36C-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36C-E3/5B requirements.
6.How does Aetrix verify that SMBJ36C-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ36C-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 SMBJ36C-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ36C-E3/5B?
All SMBJ36C-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36C-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 SMBJ36C-E3/5B part is unused and in its original packaging.
Return procedure for SMBJ36C-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36C-E3/5B Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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