My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMAJ36-E3/5A
- Part No.:
- SMAJ36-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ36-E3/5A.pdf
- Description:
- TVS DIODE 36VWM 64.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,253
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMAJ36-E3/5A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 36 V stand-off voltage (VWM), 40.0–48.9 V breakdown voltage (VBR at 1 mA), 64.3 V maximum clamping voltage (VC) at 6.2 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces against ESD and inductive switching transients in industrial and automotive systems.
For engineers reviewing the SMAJ36-E3/5A datasheet, SMAJ36-E3/5A pinout, SMAJ36-E3/5A application, or SMAJ36-E3/5A equivalent, this page delivers verified electrical parameters, JEDEC-compliant DO-214AC package details, clamping performance under standardized surge conditions, RoHS-compliant commercial-grade construction, and validated alternative parts for design continuity and supply resilience.
Technical Context
The SMAJ36-E3/5A operates as a unidirectional avalanche diode with cathode-band polarity marking, optimized for fast response (<1 ps) to transient events such as ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and lightning-induced surges (IEC 61000-4-5). Its glass-passivated junction ensures stable VBR tolerance and low leakage (<1 µA at 36 V).
Thermal performance is defined by RθJA = 120 °C/W (on 0.2" × 0.2" copper pads) and RθJL = 30 °C/W, supporting reliable operation up to TJ = +150 °C. The device meets MSL level 1 per J-STD-020 and passes JESD201 Class 1A whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; sets safe DC rail margin for 36 V nominal systems. |
| VBR (min/max) | 40.0 V / 48.9 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on across temperature and unit variation. |
| VC @ IPPM | 64.3 V at 6.2 A - Clamped voltage during 10/1000 µs surge; defines worst-case stress on downstream components. |
| PPPM | 400 W - Peak pulse power handling capability; enables protection against high-energy transients without thermal runaway. |
| IFSM | 40 A - Non-repetitive forward surge rating (8.3 ms half-sine); supports robustness against accidental polarity reversal or inrush events. |
| TJ Range | −55 °C to +150 °C - Full industrial temperature operation; validated for under-hood automotive and factory-floor environments. |
| Leakage ID | <1 µA at 36 V - Minimal standby power loss and signal integrity impact in high-impedance circuits. |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, matte tin-plated leads, RoHS-compliant commercial grade (E3 suffix), MSL Level 1, 260 °C reflow compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration; carries surge current during clamping. |
| Cathode (banded end) | Avalanche clamping terminal | Connected to protected line (e.g., 36 V rail); initiates conduction when reverse voltage exceeds VWM, shunting surge to ground. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR and long-term reliability under thermal cycling and humidity exposure. |
| 400 W peak pulse power (10/1000 µs) | Provides higher energy absorption than standard 200 W TVS devices, reducing need for parallel staging. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive ICs. |
| MSL Level 1 & JESD201 Class 1A | Enables direct placement into high-volume SMT lines without baking or special handling. |
| DO-214AC footprint compatibility | Supports drop-in replacement with industry-standard SMA-layout PCBs and pick-and-place tooling. |
Applications
| Industrial Motor Control | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protection of 36 V DC bus in PLC output stages against inductive kickback from solenoid valves and relay coils. IC Role / Device Role / Timing Role: Unidirectional TVS placed between rail and ground, clamping transients within 1 ps to limit voltage excursion below 65 V. Use Value: Prevents latch-up or gate oxide damage in driving MOSFETs and logic ICs, extending system uptime in factory automation. |
Use Scenario: Safeguarding LIN bus transceivers and microcontroller I/O pins from load dump and jump-start surges in BCM power domains. IC Role / Device Role / Timing Role: Standoff-rated TVS on 36 V auxiliary rail, activated only during >36 V events while remaining invisible during normal operation. Use Value: Maintains signal integrity and avoids false resets during battery transients, meeting ISO 7637-2 Pulse 5a requirements. |
| Telecom Power Supply Input | Consumer Appliance Sensor Interface |
|
Use Scenario: Input-stage protection for 36 V telecom rectifier modules exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary clamping device on DC input, coordinated with upstream MOVs to share energy and extend lifetime. Use Value: Limits peak voltage to 64.3 V during 10/1000 µs surges, preventing failure of downstream DC-DC controllers and PMICs. |
Use Scenario: ESD protection for temperature/humidity sensor analog outputs connected to MCU ADC inputs in smart HVAC units. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) TVS placed directly at connector, minimizing parasitic capacitance impact on signal bandwidth. Use Value: Preserves measurement accuracy while surviving ±8 kV contact ESD per IEC 61000-4-2, without loading the 10 kΩ sensor bridge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/5A | Lower VBR range (40.0–44.2 V) and tighter tolerance; clamps at 58.1 V @ 6.9 A. | Better suited for systems requiring tighter voltage margin control near 36 V rail, e.g., regulated 36 V supplies with narrow headroom. | Select SMAJ36A-E3/5A when VBR consistency and lower clamping voltage are prioritized over absolute peak power handling. |
| SMCJ36A-E3/57T | Higher power rating (1500 W), larger DO-214AB (SMC) package, same VWM/VBR family. | Used where surge energy exceeds 400 W capability - e.g., main AC/DC input stages or heavy industrial equipment. | Choose SMCJ36A-E3/57T only if board space allows SMC footprint and system-level surge testing confirms >400 W requirement. |
Compared with SMAJ36-E3/5A, SMAJ36A-E3/5A offers improved clamping voltage and tighter VBR but identical package and layout; SMCJ36A-E3/57T provides 3.75× higher pulse power in a larger footprint, requiring PCB redesign but enabling higher system-level surge immunity.
Availability
SMAJ36-E3/5A is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, telecom power input, and consumer appliance sensor interface applications requiring stable component supply, consistent parametric performance, and RoHS-compliant commercial-grade sourcing.
Supply support for SMAJ36-E3/5A 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 application-specific optimization.
The SMAJ series is engineered for surface-mount transient suppression in cost-sensitive, high-volume applications across industrial, automotive, and communications markets - balancing high pulse power, tight VBR control, and JEDEC-standard packaging.
FAQ
What is the clamping voltage of the SMAJ36-E3/5A under a 10/1000 µs surge?
The SMAJ36-E3/5A clamps to a maximum of 64.3 V at 6.2 A peak pulse current (IPPM) when subjected to a 10/1000 µs waveform. This value is measured per Fig. 1 and Fig. 3 in Vishay Document 88390 and defines the upper voltage limit imposed on protected circuitry during standardized surge events. The SMAJ36-E3/5A maintains this clamping performance across its full operating temperature range.
Is the SMAJ36-E3/5A unidirectional or bidirectional?
The SMAJ36-E3/5A is a unidirectional transient voltage suppressor, indicated by the absence of "C" or "CA" suffix and confirmed by its single cathode band marking. It conducts only in reverse bias above VWM, making it suitable for DC rail protection where polarity is fixed. Bidirectional variants (e.g., SMAJ36CA) are separate part numbers with symmetrical clamping in both directions.
What is the maximum operating junction temperature for the SMAJ36-E3/5A?
The SMAJ36-E3/5A has a maximum junction temperature (TJ) of +150 °C and a storage temperature range of −55 °C to +150 °C. This rating is validated per the thermal characteristics table in Document 88390 and supports deployment in under-hood automotive locations, industrial enclosures, and other thermally demanding environments where ambient temperatures exceed 85 °C.
Does the SMAJ36-E3/5A meet RoHS and lead-free assembly requirements?
Yes, the SMAJ36-E3/5A is RoHS 2002/95/EC compliant and rated for lead-free reflow soldering with a maximum peak temperature of 260 °C (per J-STD-020 MSL Level 1). The "E3" suffix explicitly denotes Vishay's commercial-grade, RoHS-compliant construction with matte tin-plated leads qualified to JESD22-B102 and J-STD-002.
How does the SMAJ36-E3/5A compare to the SMAJ36A-E3/5A?
The SMAJ36A-E3/5A has a lower VBR range (40.0–44.2 V vs. 40.0–48.9 V), tighter tolerance, and lower clamping voltage (58.1 V vs. 64.3 V at respective IPPM). Both share identical DO-214AC packaging, VWM (36 V), and RoHS compliance. The SMAJ36-E3/5A delivers higher peak pulse power margin due to its broader VBR spread, while SMAJ36A-E3/5A prioritizes precision clamping.
SMAJ36-E3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 64.3V
- Current - Peak Pulse (10/1000µs):
- 6.2A
- Power - Peak Pulse:
- 400W
- 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-214AC (SMA)
SMAJ36-E3/5A FAQ
1.How can I place an order for SMAJ36-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ36-E3/5A 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 SMAJ36-E3/5A reliable?
The price and inventory of SMAJ36-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ36-E3/5A is usually 5 days.
3.What payment methods are accepted for SMAJ36-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ36-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ36-E3/5A?
SMAJ36-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ36-E3/5A 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 SMAJ36-E3/5A?
For technical support, including SMAJ36-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ36-E3/5A requirements.
6.How does Aetrix verify that SMAJ36-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMAJ36-E3/5A 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 SMAJ36-E3/5A meets industry standards.
7.What is the process for return or replacement of SMAJ36-E3/5A?
All SMAJ36-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ36-E3/5A, 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 SMAJ36-E3/5A part is unused and in its original packaging.
Return procedure for SMAJ36-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMAJ36-E3/5A 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 …
