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Vishay General Semiconductor - Diodes Division SMBJ36CA-E3/52
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- Part No.:
- SMBJ36CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36CA-E3/52.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,807
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Product details
Overview
SMBJ36CA-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 stand-off 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 (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial motor drives.
For engineers reviewing the SMBJ36CA-E3/52 datasheet, SMBJ36CA-E3/52 pinout, SMBJ36CA-E3/52 application, or SMBJ36CA-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 TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the low incremental surge resistance supports effective energy diversion during fast transients.
The device complies with ANSI/IEEE C62.35 for transient suppressor definitions and meets UL 497B recognition (QVGQ2) for telecom and industrial protector applications. Thermal resistance is specified as RθJA = 100 °C/W (on recommended pad layout) and RθJL = 20 °C/W, supporting reliable operation up to TJ = +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 40.0 V / 44.2 V at IT = 1 mA - defines guaranteed breakdown range for design margining |
| VC @ IPPM | 58.1 V at 10.3 A - clamping voltage under standardized 10/1000 µs surge, limiting stress on downstream ICs |
| PPPM | 600 W - peak pulse power handling per single 10/1000 µs transient, duty cycle ≤ 0.01 % |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage preserves signal integrity in high-impedance circuits |
| TJ max | +150 °C - enables use in under-hood automotive or enclosed industrial enclosures |
| Package | SMB (DO-214AA) - industry-standard 2-pin SMD outline with 5.59 mm max length and 2.20 mm max height |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path | Both terminals function identically; bidirectional conduction allows placement without orientation check |
| Case (body) | Thermal and mechanical interface | Plastic-molded body meets UL 94 V-0; solderable matte tin leads comply with J-STD-002 and JESD 22-B102 |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC lines, RS-485 buses, and differential sensors without external polarity management |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV line-to-line) when mounted on 5.0 mm × 5.0 mm copper pads |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage exposure to protected ICs compared to higher-ratio suppressors |
| MSL Level 1 rating | Allows unlimited floor life and reflow at peak temperature up to 260 °C without baking |
| RoHS-compliant, halogen-free option available | E3 suffix indicates commercial-grade RoHS compliance; M3 suffix adds halogen-free certification |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of gate drivers and microcontroller I/O against inductive kickback from relay coils and solenoids. IC Role / Device Role / Timing Role: Bidirectional TVS placed across relay coil or MOSFET drain-source to clamp flyback spikes before they reach logic-level circuitry. Use Value: Limits transient voltage to ≤58.1 V, preventing latch-up or oxide damage in 3.3 V/5 V MCUs and gate drivers rated ≤60 V. |
Use Scenario: ESD and load-dump suppression on LIN bus lines and sensor supply rails in BCMs. IC Role / Device Role / Timing Role: Standoff voltage (36 V) exceeds normal 12 V vehicle system + 25 % tolerance, enabling robust operation during 24 V battery jump-starts. Use Value: Clamps 10/1000 µs load dump pulses to <60 V, protecting LIN transceivers and Hall-effect sensors without crowbar action. |
| Telecom Power Feeds | Industrial PLC Analog Inputs |
|
Use Scenario: Surge protection on -48 V DC telecom power distribution boards feeding remote radio units. IC Role / Device Role / Timing Role: Bidirectional configuration accommodates polarity reversals during maintenance or hot-swap events on redundant feeds. Use Value: Withstands repeated 600 W transients while maintaining <1 µA leakage, preserving power efficiency in always-on systems. |
Use Scenario: Input protection for 4–20 mA current loop receivers and ±10 V analog front-ends in modular PLC I/O cards. IC Role / Device Role / Timing Role: Placed across input terminals to shunt induced surges from nearby AC wiring or lightning-induced coupling. Use Value: Low clamping voltage (58.1 V) prevents op-amp saturation and ADC overrange, maintaining measurement accuracy during transient events. |
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-M3/52 | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package | No difference in circuit performance; selected where halogen-free material compliance is mandated | Choose SMBJ36CA-M3/52 for environmental compliance programs requiring halogen-free bill-of-materials |
| SMAJ36CA-E3/A | Lower PPPM (400 W), smaller SMA (DO-214AC) package, same VWM/VBR/VC ratings | Reduced surge handling margin; suitable only for lower-energy transients or space-constrained layouts | Select SMAJ36CA-E3/A only when board area is critical and peak surge energy remains below 400 W capability |
Compared with SMBJ36CA-E3/52, the M3 variant offers identical protection performance with halogen-free materials, while the SMAJ36CA-E3/A trades 33 % peak power derating for 30 % smaller footprint - neither is pin-compatible due to differing package outlines (SMB vs. SMA).
Availability
SMBJ36CA-E3/52 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom power feed applications requiring stable component supply and long-term lifecycle support.
Supply support for SMBJ36CA-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 and application-specific optimization.
The SMBJ series was engineered for high-energy transient suppression in harsh environments - targeting industrial automation, automotive subsystems, and infrastructure equipment where failure modes must be mitigated without adding complexity.
FAQ
What is the clamping voltage of SMBJ36CA-E3/52 under a 10/1000 µs surge?
The SMBJ36CA-E3/52 has a maximum clamping voltage (VC) of 58.1 V at 10.3 A peak pulse current (IPPM), measured using the standardized 10/1000 µs waveform. This value is guaranteed across temperature and ensures downstream components see no more than 58.1 V during surge events, making SMBJ36CA-E3/52 suitable for protecting 3.3 V, 5 V, and 12 V logic interfaces.
Is SMBJ36CA-E3/52 unidirectional or bidirectional?
SMBJ36CA-E3/52 is a bidirectional TVS diode, indicated by the "CA" suffix per Vishay's naming convention. It provides symmetrical clamping in both polarities, eliminating the need for orientation during PCB assembly and enabling use on AC-coupled lines, differential buses like RS-485, and floating sensor inputs - unlike unidirectional variants such as SMBJ36A-E3/52.
What package does SMBJ36CA-E3/52 use, and what are its key mechanical dimensions?
SMBJ36CA-E3/52 uses the SMB (DO-214AA) surface-mount package, measuring 4.57 mm × 3.94 mm × 2.20 mm (L × W × H) with 1.52 mm minimum lead width. Its standardized outline supports automated pick-and-place and reflow soldering, and the matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability requirements - critical for SMBJ36CA-E3/52's reliability in high-volume manufacturing.
Does SMBJ36CA-E3/52 meet automotive qualification standards?
The base SMBJ36CA-E3/52 is commercial-grade and not AEC-Q101 qualified; however, Vishay offers the automotive variant SMBJ36CAHE3_B/H, which carries the HE3 suffix and full AEC-Q101 qualification. Engineers specifying SMBJ36CA-E3/52 for automotive applications must verify whether the non-automotive grade satisfies their functional safety and qualification requirements - SMBJ36CA-E3/52 itself is not certified to AEC-Q101.
How does the thermal resistance of SMBJ36CA-E3/52 affect its power derating?
SMBJ36CA-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads. This means ambient temperature rise directly impacts safe operating power: at TA = 75 °C, the device must be derated to ~2.5 W to maintain TJ ≤ 150 °C - a key constraint for SMBJ36CA-E3/52 in enclosed or high-temperature industrial enclosures.
SMBJ36CA-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:
- 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-E3/52 FAQ
1.How can I place an order for SMBJ36CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36CA-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 SMBJ36CA-E3/52 reliable?
The price and inventory of SMBJ36CA-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 SMBJ36CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ36CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36CA-E3/52?
SMBJ36CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36CA-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 SMBJ36CA-E3/52?
For technical support, including SMBJ36CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36CA-E3/52 requirements.
6.How does Aetrix verify that SMBJ36CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ36CA-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 SMBJ36CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ36CA-E3/52?
All SMBJ36CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36CA-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 SMBJ36CA-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ36CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36CA-E3/52 Tags
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