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Vishay General Semiconductor - Diodes Division SMBJ36CAHE3/5B
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- Part No.:
- SMBJ36CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36CAHE3/5B.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,177
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Product details
Overview
SMBJ36CAHE3/5B 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 power and signal lines. It features 36 V standoff voltage (VWM), 40.0–44.2 V breakdown range (VBR at 1.0 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 motor drives.
For engineers reviewing the SMBJ36CAHE3/5B datasheet, SMBJ36CAHE3/5B pinout, SMBJ36CAHE3/5B application, or SMBJ36CAHE3/5B equivalent, key selection considerations include bidirectional surge suppression capability, AEC-Q101 qualification status, clamping voltage margin relative to protected circuit rail, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche breakdown in both directions, enabling robust transient suppression without polarity sensitivity. Its glass-passivated junction ensures stable leakage performance (<1.0 µA at VWM) and fast response time (<1.0 ns), critical for safeguarding sensitive inputs against ESD and inductive switching spikes.
The SMBJ36CAHE3/5B is rated for repetitive 600 W surges at 0.01% duty cycle and supports peak forward surge current up to 100 A (8.3 ms half-sine, unidirectional only - not applicable here due to bidirectional configuration). Junction temperature range spans −55 °C to +150 °C, and it meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse operating voltage before clamping begins; sets upper limit for safe DC bias on protected line |
| VBR (min/max) | 40.0 V / 44.2 V at 1.0 mA - guaranteed breakdown onset window; defines minimum overvoltage threshold for reliable clamping activation |
| VC @ IPPM | 58.1 V at 10.3 A - maximum clamped voltage during 10/1000 µs transient; determines worst-case stress on downstream components |
| PPPM | 600 W - peak pulse power handling with standard 10/1000 µs waveform; defines transient energy absorption capacity |
| IPPM | 10.3 A - corresponding peak pulse current at VC; used to size PCB trace width and verify layout survivability |
| TJ max. | +150 °C - maximum junction temperature; constrains thermal design when operating near PD = 5.0 W under sustained conditions |
| RθJA | 100 °C/W - thermal resistance junction-to-ambient on standard 0.2" × 0.2" copper pads; informs derating above 25 °C ambient |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking; matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode / Anode (symmetrical) | Bidirectional avalanche junction terminals | No functional distinction between ends; either terminal may connect to line or ground - enables flexible placement in AC-coupled or floating signal paths |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against high-energy transients like ISO 7637-2 Pulse 1/2a/5a in automotive subsystems without external series impedance |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, body electronics, and ADAS sensors |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage overshoot during clamping, reducing risk of latch-up or gate oxide damage in protected MOSFETs and logic ICs |
| MSL Level 1, 260 °C reflow compatible | Supports lead-free assembly without moisture sensitivity concerns or pre-bake requirements - simplifies manufacturing flow |
| Glass-passivated junction | Ensures stable leakage (<1.0 µA at VWM) and long-term parameter consistency across temperature and lifetime |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Suppresses inductive kickback from relay coils and solenoid drivers in PLC I/O modules and HVAC actuators. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across coil terminals or between signal line and chassis ground. Use Value: Limits transient voltage to ≤58.1 V, preventing damage to microcontroller GPIOs and optocoupler inputs rated for 36 V max. |
Use Scenario: Protects LIN bus transceivers and door module sensors from load dump and jump-start surges. IC Role / Device Role / Timing Role: Line-to-ground TVS on LIN data line and power input rails of BCM subassemblies. Use Value: Withstands 600 W pulses while maintaining <1.0 µA leakage at 12 V nominal, ensuring low standby current and signal integrity. |
| Telecom Power Supply Inputs | Industrial Sensor Signal Conditioning |
|
Use Scenario: Guards 48 V DC input stage of PoE-powered network switches against lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level bidirectional TVS upstream of DC-DC converter input filter. Use Value: Clamps 10/1000 µs transients to 58.1 V, allowing downstream TVS and MOV stages to handle residual energy without overstress. |
Use Scenario: Shields analog front-end of 4–20 mA current loop transmitters from ESD and field wiring faults. IC Role / Device Role / Timing Role: Differential-mode TVS across twisted-pair input terminals before instrumentation amplifier. Use Value: Symmetrical breakdown ensures equal clamping on positive/negative transients, preserving signal common-mode rejection. |
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-M3/5B | Same electrical specs, halogen-free RoHS-compliant variant (HM3 suffix), no AEC-Q101 qualification | Lacks automotive qualification; suitable for commercial/industrial use where AEC-Q101 is not mandated | Select when halogen-free compliance is required but automotive reliability validation is unnecessary |
| SMCJ36CAHE3/5B | Same VWM/VBR/VC, but in larger SMC (DO-214AB) package with 1500 W PPPM rating | Higher power handling enables longer surge duration tolerance; requires larger PCB footprint | Choose when system-level surge tests exceed 600 W or when thermal margin is constrained by ambient conditions |
Compared with SMBJ36CAHE3/5B, the SMBJ36CA-M3/5B offers identical clamping performance without automotive qualification, while the SMCJ36CAHE3/5B trades compact SMB packaging for 2.5× higher pulse power - guiding selection based on space constraints versus energy absorption needs.
Availability
SMBJ36CAHE3/5B is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power supply inputs, and industrial sensor signal conditioning requiring stable component supply and AEC-Q101 assurance.
Supply support for SMBJ36CAHE3/5B 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 reliability, efficiency, and manufacturability.
The SMBJ series delivers standardized, high-reliability TVS diodes optimized for automated SMT assembly and demanding surge environments - targeting automotive, industrial, and telecom infrastructure applications.
FAQ
What does the "CA" suffix indicate in SMBJ36CAHE3/5B?
The "CA" suffix denotes a bidirectional configuration, meaning SMBJ36CAHE3/5B provides symmetrical avalanche breakdown in both polarities. This allows it to suppress positive and negative transients without regard to orientation on the PCB - unlike unidirectional variants (e.g., SMBJ36AHE3/5B) that require correct cathode alignment. The device has no polarity marking.
Is SMBJ36CAHE3/5B qualified for automotive applications?
Yes, SMBJ36CAHE3/5B is AEC-Q101 qualified, as confirmed by the "HE3" suffix and Vishay documentation. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD verification - making it suitable for under-hood and cabin electronics such as body control modules and sensor interfaces.
What is the maximum clamping voltage of SMBJ36CAHE3/5B and at what current?
The maximum clamping voltage (VC) of SMBJ36CAHE3/5B is 58.1 V, measured at a peak pulse current (IPPM) of 10.3 A using the standard 10/1000 µs waveform. This value represents the worst-case voltage seen by protected circuitry during a transient event and must be compared against the absolute maximum ratings of downstream components.
How does SMBJ36CAHE3/5B differ from SMBJ36AHE3/5B?
SMBJ36CAHE3/5B is bidirectional with symmetrical VBR and clamping behavior, whereas SMBJ36AHE3/5B is unidirectional and features a cathode band marking. The unidirectional version supports 100 A peak forward surge current (8.3 ms half-sine), which is irrelevant for the CA variant. Both share identical VWM (36 V), PPPM (600 W), and package (SMB).
What PCB pad layout is recommended for SMBJ36CAHE3/5B?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad for each terminal of SMBJ36CAHE3/5B to achieve rated thermal performance and pulse power dissipation. Using smaller pads reduces heat dissipation capability and may cause premature failure under repeated surge events; the device's RθJA is specified at 100 °C/W under this layout condition.
SMBJ36CAHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ36CAHE3/5B FAQ
1.How can I place an order for SMBJ36CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36CAHE3/5B 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 SMBJ36CAHE3/5B reliable?
The price and inventory of SMBJ36CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ36CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ36CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36CAHE3/5B?
SMBJ36CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36CAHE3/5B 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 SMBJ36CAHE3/5B?
For technical support, including SMBJ36CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36CAHE3/5B requirements.
6.How does Aetrix verify that SMBJ36CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ36CAHE3/5B 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 SMBJ36CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ36CAHE3/5B?
All SMBJ36CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36CAHE3/5B, 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 SMBJ36CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ36CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36CAHE3/5B Tags
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