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Vishay General Semiconductor - Diodes Division SMBJ36C-E3/52
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- Part No.:
- SMBJ36C-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36C-E3/52.pdf
- Description:
- TVS DIODE 36VWM 64.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,423
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Product details
Overview
SMBJ36C-E3/52 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 signal or power 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 - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMBJ36C-E3/52 datasheet, SMBJ36C-E3/52 pinout, SMBJ36C-E3/52 application, or SMBJ36C-E3/52 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.45), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche breakdown in both polarities, enabling robust surge suppression without polarity constraints. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ps), while the low incremental surge resistance supports effective energy diversion during ESD or lightning-induced transients.
The SMBJ36C-E3/52 is rated for -55 °C to +150 °C operating junction temperature and exhibits a VBR temperature coefficient of 0.100 %/°C - critical for thermal stability in automotive and industrial environments where ambient temperature swings affect clamping precision.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (min/max) | 40.0 V / 44.2 V at 1 mA - guaranteed avalanche initiation range; ensures predictable turn-on across production lots. |
| VC @ IPPM | 58.1 V at 10.3 A - clamped voltage under 600 W 10/1000 µs surge; determines protected circuit's maximum transient exposure. |
| PPPM | 600 W - peak pulse power handling per single transient; validated with 0.01 % duty cycle repetitive testing. |
| IPPM | 10.3 A - peak pulse current corresponding to VC; defines minimum trace width and PCB copper area needed (0.2" × 0.2"). |
| Junction Temp Range | -55 °C to +150 °C - enables deployment in under-hood automotive, motor drives, and outdoor telecom equipment. |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 2.20 mm × 1.95 mm body; compatible with JEDEC MS-012AC footprint. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; meets UL 94 V-0 flammability rating and J-STD-002 solderability requirements. Polarity: unmarked - bidirectional operation eliminates cathode/anode orientation concerns during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; conducts surge current in either direction once VBR exceeded. |
| Case / Body | Thermal and mechanical interface | No electrical connection; provides mechanical anchoring and contributes to thermal dissipation via PCB copper pads. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity awareness or external diode pairing. |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV line-to-line) when mounted on recommended 5.0 mm × 5.0 mm copper pads. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on downstream ICs - e.g., keeps 3.3 V or 5 V logic within safe absolute maximum ratings during transients. |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak without baking; simplifies manufacturing for high-reliability industrial assembly. |
| AEC-Q101 qualification option | HE3/HM3 variants available for automotive applications; SMBJ36C-E3/52 itself is commercial-grade but shares identical die and construction. |
Applications
| Industrial Motor Drives | Automotive Sensor Interfaces |
|---|---|
|
Use Scenario: Suppresses switching spikes from IGBT gate drivers and flyback energy in 24 V DC motor control PCBs. IC Role / Device Role / Timing Role: Bidirectional TVS placed across H-bridge power rails and encoder feedback lines to clamp ±50 V transients. Use Value: Prevents latch-up or gate oxide damage in DRV83xx drivers and AS504x position sensors during load dump or inductive kick events. |
Use Scenario: Protects LIN bus transceivers and MEMS pressure sensor outputs in engine bay modules exposed to ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Clamps bidirectional surges on 12 V supply and 0–5 V analog sensor outputs without adding polarity-sensitive components. Use Value: Maintains signal integrity under 100 V/100 ms load dump tests while meeting AEC-Q100 Grade 1 temperature requirements. |
| Telecom Power Feeds | Consumer USB-C PD Protection |
|
Use Scenario: Shields PoE-powered Ethernet PHYs and DC-DC controllers from induced surges on 48 V phantom power lines. IC Role / Device Role / Timing Role: Mounted at RJ45 connector entry point to limit common-mode transients before isolation transformers and TPS2375x controllers. Use Value: Limits clamped voltage to <60 V, ensuring compliance with IEEE 802.3bt surge immunity requirements for Class 5 devices. |
Use Scenario: Safeguards USB-C port controller (e.g., TUSB1210) and buck-boost charger ICs against ESD and hot-swap overshoot. IC Role / Device Role / Timing Role: Placed on VBUS line upstream of USB PD policy engine to absorb ±15 kV contact ESD per IEC 61000-4-2. Use Value: Achieves sub-100 ns response with <1 µA leakage at 20 V, preserving battery efficiency while passing USB-IF ESD validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA-E3/52 | Identical electrical specs and package; "CA" suffix explicitly denotes bidirectional variant (same as "C" in SMBJ36C). | No functional difference - "CA" is Vishay's standardized bidirectional designation; "C" is legacy marking used in some ordering codes. | Select SMBJ36CA-E3/52 for new designs requiring explicit bidirectional labeling per internal BOM standards. |
| SMCJ36C-E3/52 | Same VWM, VBR, and VC, but in larger SMC (DO-214AB) package with 1500 W PPPM rating and higher IPPM (23.5 A). | Used where higher surge endurance is required (e.g., AC mains input stages), but requires larger PCB area and different pad layout. | Choose SMBJ36C-E3/52 when space-constrained layouts demand SMB footprint and 600 W rating suffices for IEC 61000-4-4/5 compliance. |
Compared with SMBJ36CA-E3/52, the SMBJ36C-E3/52 offers identical protection performance in the same SMB package, while SMCJ36C-E3/52 trades compactness for 2.5× higher surge capacity - making SMBJ36C-E3/52 optimal for dense consumer and industrial PCBs where layout area and cost are prioritized over extreme surge margins.
Availability
SMBJ36C-E3/52 is available at Aetrix Electronics and suitable for industrial motor drives, automotive sensor interfaces, telecom power feeds, and consumer USB-C PD protection requiring stable component supply and RoHS-compliant sourcing.
Supply support for SMBJ36C-E3/52 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, power efficiency, and AEC-Q qualification.
The SMBJ series is engineered for high-energy transient suppression in space-constrained applications - targeting industrial automation, automotive electronics, and communications infrastructure where consistent clamping and automated assembly are essential.
FAQ
What is the polarity configuration of SMBJ36C-E3/52?
The SMBJ36C-E3/52 is a bidirectional TVS diode with symmetrical avalanche characteristics in both forward and reverse directions. It has no cathode band marking and functions identically regardless of terminal orientation - ideal for protecting AC signals, differential buses, or floating power domains without polarity constraints.
Does SMBJ36C-E3/52 meet automotive qualification standards?
The SMBJ36C-E3/52 is RoHS-compliant commercial-grade; however, Vishay offers AEC-Q101 qualified versions under ordering codes SMBJ36CHE3_X (HE3) and SMBJ36CHM3_X (HM3). These share identical electrical specs and SMB package but undergo extended stress testing for automotive under-hood use.
What is the maximum clamping voltage of SMBJ36C-E3/52 under surge conditions?
The SMBJ36C-E3/52 clamps to a maximum of 58.1 V when subjected to its rated 10.3 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value is guaranteed across temperature and production lot, enabling precise overvoltage margining for 36 V-rated downstream circuitry.
How does SMBJ36C-E3/52 differ from unidirectional SMBJ36A-E3/52?
Unlike the unidirectional SMBJ36A-E3/52 - which conducts only in reverse bias and features a cathode band - the SMBJ36C-E3/52 provides symmetrical clamping in both directions. This eliminates need for polarity-aware layout and enables protection of bidirectional data lines like RS-485 or CAN without additional components.
What PCB layout guidance applies to SMBJ36C-E3/52 for optimal thermal and surge performance?
For reliable 600 W surge handling, Vishay specifies mounting SMBJ36C-E3/52 on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Use short, wide traces to minimize inductance; avoid vias in surge current paths; and ensure ≥0.5 mm clearance to adjacent conductors to prevent arcing during clamping events.
SMBJ36C-E3/52 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-E3/52 FAQ
1.How can I place an order for SMBJ36C-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36C-E3/52 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-E3/52 reliable?
The price and inventory of SMBJ36C-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ36C-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ36C-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36C-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36C-E3/52?
SMBJ36C-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36C-E3/52 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-E3/52?
For technical support, including SMBJ36C-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36C-E3/52 requirements.
6.How does Aetrix verify that SMBJ36C-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ36C-E3/52 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-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ36C-E3/52?
All SMBJ36C-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36C-E3/52, 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-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ36C-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36C-E3/52 Tags
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