My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBJ36AHE3/52
;;2.jpg)
- Part No.:
- SMBJ36AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36AHE3/52.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,381
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBJ36AHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 36 V stand-off voltage (VWM), 40.0–44.2 V breakdown voltage (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.
For engineers reviewing the SMBJ36AHE3/52 datasheet, SMBJ36AHE3/52 pinout, SMBJ36AHE3/52 application, or SMBJ36AHE3/52 equivalent, key selection considerations include its AEC-Q101 qualification, RoHS-compliant matte tin-plated leads, MSL Level 1 moisture sensitivity, and suitability for automotive power line and sensor interface protection where fast response (<1 ps), low incremental surge resistance, and stable clamping under repetitive transients are required.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM = 36 V, it avalanches into low-impedance conduction to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repeated 10/1000 µs transients at ≤0.01% duty cycle.
Thermal performance is defined by RθJA = 100 °C/W (on 0.2" × 0.2" copper pads) and RθJL = 20 °C/W, enabling effective heat dissipation during transient events. The device supports operating junction temperatures from –55 °C to +150 °C and meets UL 497B recognition (QVGQ2) for telecom and industrial protector classification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 36 V - Maximum continuous reverse operating voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 40.0–44.2 V at 1.0 mA - Confirmed avalanche initiation range; ensures predictable turn-on with <10% tolerance |
| VC (Clamping Voltage) | 58.1 V at IPPM = 10.3 A - Maximum voltage seen by protected circuit during 10/1000 µs surge; limits stress on downstream ICs |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy-handling capability per single 10/1000 µs transient; enables robust protection against IEC 61000-4-5 Level 3/4 surges |
| IPPM (Peak Pulse Current) | 10.3 A - Peak surge current the device safely clamps at rated VC; directly determines minimum series impedance needed for coordination |
| TJmax | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments and high-ambient industrial settings |
| Leakage (ID) | 1.0 µA max. at VWM - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss in always-on circuits |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to ground or low-impedance return plane; forms shunt path during overvoltage events |
| Cathode | Reverse voltage sensing / Clamping node | Connected to protected line (e.g., 36 V supply rail); avalanche conduction begins here when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements - enables use in ASIL-B compatible systems without additional qualification |
| 600 W peak pulse power (10/1000 µs) | Handles high-energy transients common in 12 V/24 V vehicle electrical systems and industrial motor drives without degradation |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage overshoot during clamping - critical for protecting 3.3 V/5 V logic interfaces powered from 36 V rails via regulators |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free SMT assembly processes without pre-baking - reduces manufacturing complexity and cost |
| Glass passivated junction | Ensures stable VBR over time and temperature; eliminates parameter drift in harsh thermal cycling environments |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: 36 V battery-fed ECU power input subjected to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp transients before they reach DC/DC converters and microcontrollers. Use Value: Limits voltage to ≤58.1 V during 10.3 A surges, preventing damage to 40 V-rated input stages and ensuring system reset immunity. |
Use Scenario: RS-485 or CAN FD transceiver lines exposed to ESD and inductive coupling in factory automation equipment. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted at connector entry point to absorb fast transients while preserving signal edge integrity. Use Value: Sub-1 µA leakage at 36 V maintains bus bias stability; 58.1 V clamping protects transceiver I/O pins rated to 40 V absolute maximum. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Control |
|
Use Scenario: 48 V PoE++ or central office power feed lines vulnerable to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS in series with upstream fuse and downstream filter, providing first-stage clamping before secondary protection. Use Value: 600 W rating handles multi-kA induced surges; UL 497B recognition validates compliance for telecom infrastructure safety certification. |
Use Scenario: Microcontroller GPIO lines driving relay coils or small BLDC motors in smart home appliances. IC Role / Device Role / Timing Role: Localized TVS across coil terminals or MCU output pins to suppress flyback spikes during switch-off. Use Value: Fast <1 ps response prevents latch-up in 3.3 V MCUs; 36 V VWM allows safe operation with 24 V control rails and 12 V logic interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36AE3/52 | Commercial-grade (non-AEC-Q101), same electrical specs and SMB package | Lacks automotive qualification; suitable for industrial/commercial designs not requiring AEC validation | Select when cost sensitivity outweighs automotive compliance requirements and lifecycle assurance is managed externally |
| SMAJ36AHE3/A | Same AEC-Q101 qualification but in smaller SMA (DO-214AC) package; lower PPPM = 400 W, higher VC = 59.0 V at 6.8 A | Reduced surge handling; limited to lower-energy transients or space-constrained PCBs where 600 W is not required | Choose only if board area is critical and surge threat level is confirmed ≤400 W; verify thermal derating on smaller pad layout |
Compared with SMBJ36AHE3/52, SMBJ36AE3/52 offers identical protection performance at lower cost but no automotive qualification, while SMAJ36AHE3/A trades 33% lower pulse power and higher clamping for 30% smaller footprint - making SMBJ36AHE3/52 optimal for AEC-Q101–mandated 600 W surge resilience in automotive and industrial power domains.
Availability
SMBJ36AHE3/52 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power feeds, and consumer appliance motor controls requiring stable component supply with full AEC-Q101 traceability and RoHS compliance.
Supply support for SMBJ36AHE3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series is engineered for high-reliability transient suppression in automotive, industrial, and telecom systems - delivering consistent clamping performance, AEC-Q101 validation, and robust thermal design for harsh-environment deployment.
FAQ
What is the maximum clamping voltage of SMBJ36AHE3/52 at its rated peak pulse current?
The SMBJ36AHE3/52 has a maximum clamping voltage (VC) of 58.1 V at its rated peak pulse current (IPPM) of 10.3 A with a 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ36AHE3/52 maintains this clamping performance across its qualified operating temperature range and after repeated transient exposure, supporting reliable protection of downstream 40 V-rated components.
Is SMBJ36AHE3/52 suitable for automotive applications?
Yes, SMBJ36AHE3/52 is AEC-Q101 qualified and explicitly designated for automotive use with ordering code suffix "HE3". It meets stress test requirements for temperature cycling, humidity, mechanical shock, and surge endurance applicable to engine control units, body electronics, and ADAS power supplies. The SMBJ36AHE3/52 also carries UL 497B recognition and is rated for operation from –55 °C to +150 °C, confirming its suitability for under-hood and cabin-mounted automotive systems.
What is the standoff voltage and why is it important for SMBJ36AHE3/52?
The standoff voltage (VWM) of SMBJ36AHE3/52 is 36 V - the maximum DC or continuous reverse voltage the device can withstand without entering avalanche conduction. This parameter establishes the design margin between normal operating voltage and clamping onset; selecting SMBJ36AHE3/52 for a 36 V nominal rail ensures minimal leakage (<1.0 µA) during steady-state operation while allowing headroom for ripple and tolerance. Using SMBJ36AHE3/52 with VWM too close to system voltage risks premature conduction and power loss.
How does the SMBJ36AHE3/52 package compare to SMAJ and SMC variants?
SMBJ36AHE3/52 uses the SMB (DO-214AA) package - larger than SMA (DO-214AC) but smaller than SMC (DO-214AB). Compared to SMAJ36AHE3/A, SMBJ36AHE3/52 delivers 50% higher peak pulse power (600 W vs. 400 W) due to greater thermal mass and pad area. Versus SMCJ36AHE3/52, it offers identical 600 W rating but in a 30% smaller footprint. The SMBJ36AHE3/52 thus balances surge capacity, board space, and manufacturability for mid-tier protection needs.
Does SMBJ36AHE3/52 have a bidirectional version, and how do they differ?
Yes - the bidirectional variant is SMBJ36CAHE3/52. While SMBJ36AHE3/52 is unidirectional (cathode-banded, blocks forward current), SMBJ36CAHE3/52 conducts symmetrically in both directions and has no polarity marking. Their VBR and VC values are identical, but SMBJ36AHE3/52 supports forward conduction up to 100 A surge (IFSM), whereas SMBJ36CAHE3/52 does not specify IFSM. Use SMBJ36AHE3/52 for DC power line protection and SMBJ36CAHE3/52 for AC-coupled or differential signal lines like RS-485.
SMBJ36AHE3/52 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):
- 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)
SMBJ36AHE3/52 FAQ
1.How can I place an order for SMBJ36AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36AHE3/52 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 SMBJ36AHE3/52 reliable?
The price and inventory of SMBJ36AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ36AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ36AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36AHE3/52?
SMBJ36AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36AHE3/52 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 SMBJ36AHE3/52?
For technical support, including SMBJ36AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36AHE3/52 requirements.
6.How does Aetrix verify that SMBJ36AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ36AHE3/52 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 SMBJ36AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ36AHE3/52?
All SMBJ36AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36AHE3/52, 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 SMBJ36AHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ36AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36AHE3/52 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 …
