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Vishay General Semiconductor - Diodes Division SMB10J36AHE3/52
- Part No.:
- SMB10J36AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J36AHE3/52.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,416
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Product details
Overview
SMB10J36AHE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on DC power rails and signal lines. It features a 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (VBR), 1000 W peak pulse power (10/1000 µs), 17.2 A peak pulse current (IPPM), and clamps transients to ≤58.1 V at rated surge. It is AEC-Q101 qualified and used in automotive power supply input stages.
For engineers reviewing the SMB10J36AHE3/52 datasheet, SMB10J36AHE3/52 pinout, SMB10J36AHE3/52 application, or SMB10J36AHE3/52 equivalent, this page delivers verified electrical specs, automotive-grade qualification status, clamping performance under 10/1000 µs surge, thermal resistance (RθJA = 72 °C/W), and direct replacement guidance for board-level ESD/surge hardening.
Technical Context
This TVS operates as a unidirectional avalanche clamp: reverse-biased during normal operation (leakage ≤1.0 µA at 36 V), then rapidly avalanches when transient voltage exceeds VBR (40.0–44.2 V @ 1 mA). Its glass-passivated junction ensures stable breakdown and low incremental surge resistance.
It is rated for 1000 W peak pulse power (10/1000 µs waveform), supports 100 A non-repetitive forward surge (IFSM), and maintains operation from –55 °C to +150 °C. The SMB package meets MSL Level 1 and UL 94 V-0 flammability requirements, with matte tin-plated leads compliant to J-STD-002 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR min/max | 40.0 V / 44.2 V @ 1 mA - Confirmed breakdown range ensures reliable turn-on without premature conduction. |
| VC @ IPPM | ≤58.1 V @ 17.2 A - Clamping voltage under full-rated 10/1000 µs surge; determines protected circuit's maximum overvoltage exposure. |
| PPPM | 1000 W (10/1000 µs) - Surge energy handling capacity for automotive load-dump and ISO 7637-2 Pulse 5a compliance. |
| ID @ VWM | ≤1.0 µA - Ultra-low leakage preserves battery life and avoids false triggering in low-power sensor circuits. |
| TJ max | +150 °C - Enables placement near hot components (e.g., power MOSFETs, DC-DC converters) without derating. |
| RθJA | 72 °C/W - Thermal resistance with 0.2" × 0.2" copper pads; informs heatsinking needs for sustained surge duty cycles. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); terminals are matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-side reference | Connected to ground or low-voltage return path; defines polarity-sensitive placement on PCB. |
| Cathode | Reverse-biased terminal / protected line connection | Connected to the line being protected (e.g., 36 V supply rail); color band identifies this end. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood and powertrain applications per stress test requirements (HTOL, TC, UHAST). |
| Glass-passivated junction | Ensures stable VBR over temperature and lifetime, with minimal parameter drift vs. epoxy-passivated alternatives. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 16750-2 jump-start pulses), improving system robustness. |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without pre-baking or special handling. |
| UL 94 V-0 molding compound | Meets flame-retardancy requirements for automotive and industrial enclosures where fire safety is mandated. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: Protecting 36 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 36 V rail and chassis ground to clamp surges before they reach downstream regulators and microcontrollers. Use Value: Limits peak voltage to ≤58.1 V during 1000 W surges, preventing damage to 40 V-rated input capacitors and LDOs. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to long harnesses in factory automation. IC Role / Device Role / Timing Role: Bidirectional clamping is not used here; SMB10J36AHE3/52 serves as unidirectional rail-to-ground clamp on sensor VDD line. Use Value: With ≤1.0 µA leakage at 36 V, it avoids loading low-current sensor supplies while suppressing ESD (IEC 61000-4-2) and inductive kickback. |
| DC-DC Converter Input Stage | Telecom Power Interface |
Use Scenario: Front-end protection for 36 V input buck converters in railway signaling equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge suppression device placed immediately after connector, before EMI filter and converter IC. Use Value: 1000 W rating handles multi-pulse surge events; 72 °C/W RθJA allows thermal design with minimal copper area. |
Use Scenario: Overvoltage protection on -36 V or +36 V telecom power feeds (e.g., central office line cards). IC Role / Device Role / Timing Role: Unidirectional clamp referenced to system ground, protecting PMICs and interface ASICs from induced transients. Use Value: AEC-Q101 qualification adds reliability assurance even outside automotive use; RoHS-compliant HE3 suffix meets telecom environmental mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A-E3/52 | Same SMB package, 36 V VWM, but rated for 600 W PPPM (vs. 1000 W); lower IPPM (10.3 A). | Not suitable for automotive load dump or high-energy industrial surges requiring ≥1000 W. | Select SMB10J36AHE3/52 when 1000 W surge immunity is mandatory; SMBJ36A-E3/52 fits space-constrained, lower-energy designs. |
| 1.5KE36A | Through-hole DO-201 package, same 36 V VWM, 1500 W PPPM, but larger footprint and higher RθJA (~50 °C/W on FR4). | Requires PCB redesign; incompatible with automated SMT lines optimized for SMB. | Choose SMB10J36AHE3/52 for SMT scalability and AEC-Q101 compliance; 1.5KE36A only if legacy through-hole compatibility or higher single-pulse rating is critical. |
Compared with SMBJ36A-E3/52 and 1.5KE36A, SMB10J36AHE3/52 uniquely combines 1000 W surge capability, AEC-Q101 qualification, and SMB footprint-enabling automotive-grade protection without layout or process changes required by lower-power or through-hole alternatives.
Availability
SMB10J36AHE3/52 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, DC-DC converter inputs, and telecom power interfaces requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMB10J36AHE3/52 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, TVS devices, and optoelectronics with emphasis on reliability, ruggedness, and automotive qualification.
The SMB10J series is engineered for high-power-density transient suppression in harsh environments-targeting automotive, industrial, and telecom systems where compact size, AEC-Q101 compliance, and repeatable clamping performance are essential.
FAQ
What is the clamping voltage of SMB10J36AHE3/52 under full-rated surge conditions?
The SMB10J36AHE3/52 clamps to a maximum of 58.1 V when subjected to its rated 17.2 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value is measured at the device terminals under defined test conditions (TA = 25 °C, mounted on 0.2" × 0.2" copper pads) and represents the highest voltage the protected circuit will experience during that surge event. Designers must ensure downstream components tolerate ≤58.1 V.
Is SMB10J36AHE3/52 suitable for bidirectional transient protection?
No, SMB10J36AHE3/52 is a unidirectional TVS diode, intended for DC rail protection where polarity is fixed (e.g., 36 V supply to ground). For bidirectional AC or data-line protection, Vishay offers the SMB8J36CA variant (800 W, bidirectional), which shares the same VWM and VBR range but uses symmetrical breakdown. Using SMB10J36AHE3/52 on bidirectional signals risks forward conduction and failure.
Does SMB10J36AHE3/52 require derating at elevated ambient temperatures?
Yes, SMB10J36AHE3/52 must be derated above TA = 25 °C per Figure 2 in the datasheet. At 85 °C ambient, its 1000 W peak pulse power drops to approximately 650 W, and IPPM reduces proportionally. The device's TJ max remains 150 °C, so thermal design-including copper pad area and airflow-must ensure junction temperature stays within limit during repeated surges.
What does the "HE3" suffix signify in SMB10J36AHE3/52?
The "HE3" suffix in SMB10J36AHE3/52 indicates RoHS-compliant construction with AEC-Q101 qualification. "H" denotes automotive grade, "E3" confirms lead-free matte tin plating and compliance with JEDEC JESD201 Class 2 whisker resistance. This distinguishes it from commercial-grade "E3" or halogen-free "HM3" variants, making SMB10J36AHE3/52 appropriate for automotive production and mission-critical industrial use.
Can SMB10J36AHE3/52 replace SMBJ36A in an existing design?
SMB10J36AHE3/52 is physically pin-compatible with SMBJ36A (same SMB package and cathode marking), but it delivers 67% higher peak pulse power (1000 W vs. 600 W) and higher IPPM (17.2 A vs. 10.3 A). Electrical substitution is safe if board layout accommodates the slightly higher thermal dissipation, and if AEC-Q101 qualification is required. No PCB changes are needed, but verify clamping voltage margin with downstream components.
SMB10J36AHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 17.2A
- Power - Peak Pulse:
- 1000W (1kW)
- 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 (SMB)
SMB10J36AHE3/52 FAQ
1.How can I place an order for SMB10J36AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J36AHE3/52 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 SMB10J36AHE3/52 reliable?
The price and inventory of SMB10J36AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J36AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMB10J36AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J36AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J36AHE3/52?
SMB10J36AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J36AHE3/52 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 SMB10J36AHE3/52?
For technical support, including SMB10J36AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J36AHE3/52 requirements.
6.How does Aetrix verify that SMB10J36AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMB10J36AHE3/52 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 SMB10J36AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMB10J36AHE3/52?
All SMB10J36AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J36AHE3/52, 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 SMB10J36AHE3/52 part is unused and in its original packaging.
Return procedure for SMB10J36AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J36AHE3/52 Tags
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