My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBG36CA-M3/5B
- Part No.:
- SMBG36CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG36CA-M3/5B.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,986
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG36CA-M3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping ESD and surge transients on signal/power lines. It features 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, and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect automotive sensor interfaces and industrial I/O ports.
For engineers reviewing the SMBG36CA-M3/5B datasheet, SMBG36CA-M3/5B pinout, SMBG36CA-M3/5B application, or SMBG36CA-M3/5B equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, halogen-free RoHS compliance (M3 suffix), low thermal resistance (RθJL = 20 °C/W), 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, with identical VBR, VC, and leakage characteristics across reverse and forward directions. Its glass-passivated junction ensures stable breakdown behavior under repetitive surge stress, while the low incremental surge resistance enables tight clamping during fast transients (e.g., ISO 7637-2 pulse 1/2a/3a).
The device is rated for TJ = –55 °C to +150 °C operation and meets J-STD-020 MSL Level 1 (260 °C peak reflow). Its 100 °C/W junction-to-ambient thermal resistance (RθJA) assumes mounting on 0.2" × 0.2" copper pads - critical for sustained surge handling in automotive control units.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 24 V automotive systems. |
| VBR (min/max) | 40.0 V / 44.2 V at 1 mA - Confirmed breakdown range ensures reliable turn-on without premature conduction during normal operation. |
| VC @ IPPM | 58.1 V at 10.3 A - Clamping voltage limits downstream IC stress during 600 W transient events (10/1000 μs). |
| PPPM | 600 W - Peak pulse power capability validated per Fig. 1; supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly mounted. |
| IPPM | 10.3 A - Peak pulse current derived from PPPM/VC; determines minimum PCB trace width and pad thermal mass required. |
| TJ max | +150 °C - Enables use in under-hood automotive modules where ambient temperatures exceed 105 °C. |
| Qualification | AEC-Q101 qualified - Validated for automotive-grade reliability including HTOL, temperature cycling, and HAST. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking. Matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | Conducts surge energy into ground path during positive overvoltage events; symmetrical with cathode in bidirectional mode. |
| Cathode | Transient current entry (negative half-cycle) | Conducts surge energy into ground path during negative overvoltage events; electrically identical to anode for SMBG36CA. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping symmetry | Identical VBR, VC, and ID in both directions - eliminates need for polarity-aware layout in differential or AC-coupled lines. |
| AEC-Q101 qualification | Validated for automotive electronics including engine control, body modules, and ADAS sensors - supports PPAP documentation. |
| Halogen-free & RoHS compliant (M3) | Meets JESD201 Class 2 whisker resistance and global environmental regulations - suitable for export-controlled industrial programs. |
| Low RθJL = 20 °C/W | Enables efficient heat transfer to PCB copper during repetitive surges - extends lifetime in high-duty-cycle protection circuits. |
| 600 W peak pulse power | Supports robust protection against ISO 7637-2 pulses and lightning-induced surges without derating at TA ≤ 85 °C. |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine control units from load dump and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and chassis ground, responding within <1 ns to transients exceeding 36 V. Use Value: Prevents latch-up or gate oxide damage in 3.3 V/5 V microcontrollers by limiting voltage to ≤58.1 V during 100 A surge events. |
Use Scenario: Safeguarding PLC digital input channels connected to 24 V DC field devices subject to relay contact bounce and motor drive coupling. IC Role / Device Role / Timing Role: Primary surge suppression element located at connector entry point, shunting transient energy before it reaches optocoupler or Schmitt trigger inputs. Use Value: Maintains signal integrity during repeated 1 kV/500 A surge tests (IEC 61000-4-5) without parameter drift or degradation after 1000 cycles. |
| Telecom Line Interface | Consumer USB Port ESD Protection |
|
Use Scenario: Shielding RS-485 transceivers in base station backhaul equipment from induced lightning surges on long outdoor cable runs. IC Role / Device Role / Timing Role: Secondary protection stage following gas discharge tube (GDT), providing low-clamp refinement for sub-microsecond transients. Use Value: Reduces residual clamping voltage to 58.1 V - well below 70 V absolute maximum rating of common RS-485 ICs like SN65HVD72. |
Use Scenario: Adding system-level ESD robustness to USB 2.0 data lines (D+/D−) in smart home hubs exposed to human-body-model (HBM) discharges up to ±15 kV. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF at 0 V) bidirectional clamp placed adjacent to USB connector, grounded to chassis. Use Value: Passes IEC 61000-4-2 Level 4 (±8 kV contact) without bit errors or link drop, verified per USB-IF compliance test plan. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG36CA-E3/5B | Same electrical specs and SMBG package; uses standard RoHS-compliant (non-halogen-free) molding compound. | Approved for industrial but not automotive AEC-Q101 applications; lacks halogen-free certification. | Select when cost sensitivity outweighs halogen-free requirement and AEC-Q101 is not mandated. |
| SMBG36CAHM3/5B | Identical electrical specs, SMBG package, halogen-free, RoHS-compliant, and AEC-Q101 qualified - adds high-reliability screening per JESD22-A110. | Qualified for mission-critical automotive subsystems (e.g., ADAS camera modules) requiring extended reliability validation. | Choose for safety-critical designs needing enhanced process controls beyond baseline AEC-Q101. |
Compared with SMBG36CA-M3/5B, the E3 variant offers lower cost without halogen-free compliance or AEC-Q101, while the HM3 variant adds high-reliability screening for ADAS and powertrain applications - all share identical clamping performance and footprint.
Availability
SMBG36CA-M3/5B is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and telecom line interface surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG36CA-M3/5B 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, MOSFETs, and protection devices with emphasis on high-reliability, automotive-qualified components.
The SMBG series was developed specifically for surface-mount transient suppression in space-constrained automotive and industrial environments, balancing high surge capability with low-profile packaging and AEC-Q101 compliance.
FAQ
What is the clamping voltage of SMBG36CA-M3/5B at its rated peak pulse current?
The SMBG36CA-M3/5B 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 Figure 1 in Vishay document 88456 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBG36CA-M3/5B maintains this clamping performance across its full operating temperature range (–55 °C to +150 °C).
Is SMBG36CA-M3/5B suitable for automotive applications?
Yes, SMBG36CA-M3/5B is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and ADAS sensor interfaces. Its halogen-free (M3) construction, MSL Level 1 reflow compatibility, and validated performance across –55 °C to +150 °C junction temperature make SMBG36CA-M3/5B appropriate for under-hood and cabin-mounted systems requiring long-term reliability.
How does the SMBG36CA-M3/5B differ from unidirectional variants like SMBG36A-M3/5B?
The SMBG36CA-M3/5B is bidirectional, providing symmetrical clamping for both positive and negative transients, whereas SMBG36A-M3/5B is unidirectional and conducts only in reverse bias. SMBG36CA-M3/5B has no polarity marking and identical VBR, VC, and leakage in both directions - essential for AC-coupled or differential signal lines. Unidirectional versions require correct cathode orientation and cannot protect against forward-biased overvoltage.
What is the thermal resistance of SMBG36CA-M3/5B, and how does it affect layout?
SMBG36CA-M3/5B has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain surge capability, PCB layout must provide adequate copper area and thermal vias - undersized pads cause junction overheating and premature failure during repetitive 600 W pulses.
Does SMBG36CA-M3/5B meet international surge immunity standards?
Yes, SMBG36CA-M3/5B supports compliance with IEC 61000-4-5 (surge), IEC 61000-4-2 (ESD), and ISO 7637-2 (automotive transients) when implemented with proper PCB layout - including short traces, low-inductance grounding, and recommended 5.0 mm × 5.0 mm copper pads. Its 600 W peak pulse rating and 58.1 V clamping enable robust protection against Level 4 (4 kV) surges per IEC 61000-4-5.
SMBG36CA-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- 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:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG36CA-M3/5B FAQ
1.How can I place an order for SMBG36CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG36CA-M3/5B 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 SMBG36CA-M3/5B reliable?
The price and inventory of SMBG36CA-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG36CA-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBG36CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG36CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG36CA-M3/5B?
SMBG36CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG36CA-M3/5B 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 SMBG36CA-M3/5B?
For technical support, including SMBG36CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG36CA-M3/5B requirements.
6.How does Aetrix verify that SMBG36CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG36CA-M3/5B 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 SMBG36CA-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBG36CA-M3/5B?
All SMBG36CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG36CA-M3/5B, 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 SMBG36CA-M3/5B part is unused and in its original packaging.
Return procedure for SMBG36CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG36CA-M3/5B Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
