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Vishay General Semiconductor - Diodes Division SMBJ36CA/1
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- Part No.:
- SMBJ36CA/1
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36CA/1.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,920
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Product details
Overview
SMBJ36CA/1 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AA (SMB) package, designed for robust overvoltage protection of sensitive electronics. It features a 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR), 58.1 V clamping voltage (VC) at 10.3 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive sensor signal lines, industrial I/O interfaces, and telecom power rails.
For engineers reviewing the SMBJ36CA/1 datasheet, SMBJ36CA/1 pinout, SMBJ36CA/1 application, or SMBJ36CA/1 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bi-directional TVS diode operates symmetrically across both polarities, enabling protection against positive and negative transients without polarity constraints. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance, critical for consistent clamping under repetitive ESD or inductive switching events.
The device is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance RθJA = 100 °C/W (on 0.2" × 0.2" pads) and RθJL = 20 °C/W, supporting reliable thermal dissipation in compact PCB layouts. It meets UL 497B recognition and JESD22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse working voltage before clamping initiates |
| VBR min/max | 40.0 V / 44.2 V at 1 mA - guaranteed breakdown range defining turn-on threshold |
| VC @ IPPM | 58.1 V at 10.3 A - clamped voltage during 10/1000 μs surge, limiting stress on downstream ICs |
| PPPM | 600 W - peak transient energy absorption capacity per single 10/1000 μs pulse |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| MSL Level | Level 1 (260 °C peak reflow) - supports standard lead-free SMT assembly without baking |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: DO-214AA (SMBJ), surface-mount, bi-directional configuration with no polarity marking (unlike uni-directional variants which feature cathode band).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No functional distinction between terminals; either terminal serves as anode or cathode depending on transient polarity |
| Case (cathode band absent) | Non-polarized package body | Eliminates orientation dependency during automated placement and reduces BOM complexity vs. uni-directional variants |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables suppression of high-energy transients from relay coil decay or load dump in 12 V systems |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| MSL Level 1 rating | Permits direct placement into lead-free reflow ovens without pre-baking, reducing manufacturing overhead |
| UL 497B recognized | Meets safety requirements for telecom and industrial signal line protectors in certified end equipment |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional clamping element placed directly at connector entry point to shunt transients before reaching MCU or signal conditioner. Use Value: Limits voltage seen by protected ICs to ≤58.1 V during 100 A surge events, preventing latch-up or gate oxide damage in AEC-Q100 qualified components. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced surges and ground bounce. IC Role / Device Role / Timing Role: Primary transient suppressor on backplane-side signal traces, coordinated with upstream fuses and filtering capacitors. Use Value: Withstands repetitive 600 W pulses at 0.01 % duty cycle, maintaining integrity across decades of factory automation cycles. |
| Telecom Power Rail Protection | Consumer USB Port ESD Suppression |
Use Scenario: Secondary overvoltage protection on -48 V telecom power distribution boards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response clamp parallel to bulk capacitance, activated within <1 ps to limit voltage overshoot during fast-rising transients. Use Value: Clamps 10/1000 μs surges to 58.1 V while sustaining 10.3 A peak current, preserving upstream DC/DC converter regulation. |
Use Scenario: Board-level ESD protection for USB 2.0 data lines and VBUS in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Low-capacitance bi-directional TVS placed adjacent to USB connector to absorb ±15 kV contact discharge per IEC 61000-4-2. Use Value: Delivers sub-1 ns response with 58.1 V clamping, preventing data corruption and PHY damage without degrading 480 Mbps signal integrity. |
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 | Same electrical specs and DO-214AA package; RoHS-compliant commercial-grade variant (non-AEC-Q101) | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated | Select when cost sensitivity outweighs automotive reliability requirements and lifecycle assurance is not required |
| SAC36CA | Same VWM/VBR/VC ratings but in smaller SOD-123FL package; lower PPPM (400 W) and higher thermal resistance | Higher power density but reduced surge handling; limited to lower-energy transients in space-constrained consumer PCBs | Choose only if board area is critical and peak surge currents remain below 7 A; verify thermal derating at TJ > 125 °C |
Compared with SMBJ36CA/1, SMBJ36CA-E3/52 offers identical protection performance without AEC-Q101 validation, while SAC36CA trades surge robustness for footprint reduction - making SMBJ36CA/1 the optimal choice for automotive and industrial applications demanding full 600 W capability and extended temperature reliability.
Availability
SMBJ36CA/1 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom power distribution systems requiring stable component supply with long-term lifecycle support.
Supply support for SMBJ36CA/1 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 optimization.
The SMBJ series was developed to deliver high-power, low-clamping TVS protection in standardized surface-mount packages for automotive, industrial, and telecom applications demanding AEC-Q101 compliance and repeatable surge performance.
FAQ
What is the clamping voltage of SMBJ36CA/1 at its rated peak pulse current?
The SMBJ36CA/1 has a maximum clamping voltage (VC) of 58.1 V when subjected to its rated peak pulse current (IPPM) of 10.3 A under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during transient events. The SMBJ36CA/1 maintains this clamping performance across its full operating temperature range (-55 °C to +150 °C), ensuring consistent protection in harsh environments.
Is SMBJ36CA/1 suitable for automotive applications?
Yes, SMBJ36CA/1 is AEC-Q101 qualified, meaning it has passed rigorous stress tests including temperature cycling, highly accelerated life testing (HALT), and unbiased highly accelerated stress testing (uHAST) specifically for automotive use. Its -55 °C to +150 °C operating junction temperature range, MSL Level 1 reflow compatibility, and UL 497B recognition make SMBJ36CA/1 appropriate for engine control units, body electronics, and ADAS sensor interfaces where reliability under thermal and mechanical stress is mandatory.
How does SMBJ36CA/1 differ from uni-directional SMBJ36A?
SMBJ36CA/1 is bi-directional with symmetrical clamping behavior in both polarities and no cathode marking, whereas SMBJ36A is uni-directional with a visible cathode band and conducts only in reverse bias. SMBJ36CA/1 exhibits identical VBR (40.0–44.2 V), VC (58.1 V), and PPPM (600 W) ratings in both directions, enabling simplified layout in AC-coupled or floating signal paths. The SMBJ36CA/1 eliminates polarity-checking during assembly - a key advantage in high-volume automated manufacturing of SMBJ36CA/1-based designs.
What is the thermal resistance of SMBJ36CA/1, and how does it affect PCB layout?
SMBJ36CA/1 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, and 20 °C/W junction-to-lead (RθJL). This means PCB layout must allocate minimum recommended pad area to avoid exceeding +150 °C junction temperature during repetitive 600 W surges. Reducing pad size increases RθJA, risking thermal runaway - so SMBJ36CA/1 requires strict adherence to Vishay's mounting guidelines for sustained reliability.
Does SMBJ36CA/1 meet RoHS and halogen-free requirements?
Yes, SMBJ36CA/1 complies with RoHS Directive 2011/65/EU and is classified as halogen-free per JEDEC JS709A standards. Its matte tin-plated leads meet J-STD-002 and JESD22-B102 solderability requirements, and the molding compound satisfies UL 94 V-0 flammability rating. These certifications are documented in Vishay's material categorization report (doc?99912), confirming SMBJ36CA/1 is suitable for environmentally regulated markets including EU automotive and industrial equipment.
SMBJ36CA/1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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/1 FAQ
1.How can I place an order for SMBJ36CA/1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36CA/1 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/1 reliable?
The price and inventory of SMBJ36CA/1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ36CA/1 is usually 5 days.
3.What payment methods are accepted for SMBJ36CA/1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36CA/1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36CA/1?
SMBJ36CA/1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36CA/1 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/1?
For technical support, including SMBJ36CA/1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36CA/1 requirements.
6.How does Aetrix verify that SMBJ36CA/1 is sourced from the original manufacturer or authorized distributors?
All SMBJ36CA/1 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/1 meets industry standards.
7.What is the process for return or replacement of SMBJ36CA/1?
All SMBJ36CA/1 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36CA/1, 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/1 part is unused and in its original packaging.
Return procedure for SMBJ36CA/1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36CA/1 Tags
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