My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMB36AHE3_A/I
- Part No.:
- TPSMB36AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB36AHE3_A/I.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:1,165
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMB36AHE3_A/I from Vishay is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features 36.0 V nominal breakdown voltage (VBR), 30.8 V stand-off voltage (VWM), 49.9 V maximum clamping voltage (VC) at 12 A peak pulse current, 600 W peak pulse power (10/1000 µs), and operates up to +185 °C junction temperature - ideal for automotive power rail protection.
For engineers reviewing the TPSMB36AHE3_A/I datasheet, TPSMB36AHE3_A/I pinout, TPSMB36AHE3_A/I application, or TPSMB36AHE3_A/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, and verified clamping performance under repetitive 10/1000 µs surge conditions in high-reliability embedded systems.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to deliver stable clamping with low incremental surge resistance and fast response time (<1 ns). Its junction design supports operation from –65 °C to +185 °C, enabling use in under-hood automotive environments where thermal derating must be managed per Figure 2 of the datasheet.
The device is rated for 75 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine) and exhibits a typical VBR temperature coefficient of +0.090 %/°C - critical for predicting voltage shift across wide temperature ranges in engine control units and ADAS sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 34.2 / 36.0 / 37.8 V - defines minimum voltage at which clamping initiates reliably at 1 mA test current |
| VWM | 30.8 V - maximum continuous reverse working voltage before leakage exceeds 1 μA |
| VC @ IPPM | 49.9 V at 12 A - clamped voltage during 10/1000 µs surge, limiting downstream IC stress |
| PPPM | 600 W - peak pulse power handling capability under standardized transient waveform |
| TJ max. | +185 °C - enables placement near heat sources in automotive ECUs without derating loss |
| Polarity | Unidirectional - protects against positive transients only; cathode marked by band |
| MSL Level | Level 1 (J-STD-020) - no floor life limitation; compatible with standard SMT reflow up to 260 °C peak |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, UL 94 V-0 molding compound. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VWM exceeded |
| Anode | Reference node | Typically tied to system ground or low-impedance return path for clamping loop integrity |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD47 |
| 185 °C junction rating | Enables direct placement on high-temperature PCB zones without thermal derating penalties |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 1, 2a, 3a/b and ISO 16750-2 load dump surges in 12 V systems |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage margin required for protected ICs, reducing design safety factor overhead |
| MSL Level 1 compliance | Eliminates bake-out requirement prior to reflow, streamlining high-volume SMT manufacturing |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs of engine control modules (ECMs) against load dump and inductive switching transients per ISO 16750-2. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and input filter capacitor to clamp transients before LDO regulators. Use Value: Withstands 600 W surges and maintains VC ≤ 49.9 V, ensuring downstream 40 V-rated regulators remain within safe operating area. | Use Scenario: Safeguarding analog outputs of industrial pressure sensors exposed to relay-coil flyback in PLC I/O modules. IC Role / Device Role / Timing Role: TVS placed across sensor output line and ground to absorb 10/1000 µs transients induced by nearby contactor switching. Use Value: Fast response and low VC limit voltage excursion to <50 V, preventing damage to 24 V analog front-end amplifiers and ADC drivers. |
| Telecom DC Power Input Protection | Consumer USB Power Delivery Line Protection |
Use Scenario: Clamping surges on -48 V telecom rectifier outputs feeding base station backplane power distribution. IC Role / Device Role / Timing Role: Unidirectional TVS connected between -48 V rail and chassis ground to shunt lightning-induced common-mode transients. Use Value: 185 °C rating allows mounting near heatsinks; 30.8 V VWM ensures no conduction during normal -48 V operation while clamping positive excursions. | Use Scenario: Protecting VBUS lines in USB-C PD adapters against ESD and hot-plug transients during insertion/removal. IC Role / Device Role / Timing Role: TVS mounted at USB-C connector to clamp ±15 kV ESD (IEC 61000-4-2) and 10/1000 µs surges from cable coupling. Use Value: Low leakage (<1 μA at VWM) prevents standby current drain; 49.9 V clamping avoids triggering overvoltage protection in PD controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A | Same VBR range (34.2–37.8 V), but lower PPPM = 400 W; SMA package (smaller footprint, lower thermal mass) | Not AEC-Q101 qualified; limited to commercial-temperature industrial use | Select when cost or board space is prioritized over automotive qualification and 600 W surge margin |
| TPSMB36AHM3_A/I | Identical electrical specs and AEC-Q101 qualification; halogen-free molding compound (vs. RoHS-compliant only in HE3) | Required for strict environmental compliance (e.g., EU automotive Tier 1 programs) | Select when halogen-free material compliance is mandated by OEM specification |
Compared with SMAJ36A and TPSMB36AHM3_A/I, the TPSMB36AHE3_A/I provides the optimal balance of automotive qualification, 600 W surge robustness, and standard RoHS compliance - making it preferred for production-grade 12 V automotive power domains where both reliability and regulatory alignment are mandatory.
Availability
TPSMB36AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power inputs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for TPSMB36AHE3_A/I 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 high-reliability and automotive-grade solutions.
The TPSMB series belongs to Vishay's PAR® (Protected Anisotropic Rectifier) transient voltage suppressor product line, engineered specifically for robust, high-temperature-stable clamping in automotive power systems and industrial equipment exposed to severe electrical transients.
FAQ
What is the clamping voltage of the TPSMB36AHE3_A/I under a 10/1000 µs surge?
The TPSMB36AHE3_A/I has a maximum clamping voltage (VC) of 49.9 V at 12 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per Figure 1 and Table on page 2 of Vishay Document Number 88406 and reflects worst-case clamping performance at TA = 25 °C. The actual clamped voltage in circuit depends on layout inductance and surge source impedance, but the TPSMB36AHE3_A/I guarantees ≤49.9 V under defined test conditions.
Is the TPSMB36AHE3_A/I qualified for automotive applications?
Yes, the TPSMB36AHE3_A/I is AEC-Q101 qualified, as confirmed in the "FEATURES" section and Note (1) on page 2 of the Vishay datasheet (Document Number 88406). The HE3 suffix denotes RoHS-compliant and AEC-Q101 qualified construction. This qualification covers stress tests including temperature cycling, highly accelerated life testing (HALT), and ESD robustness - validating its suitability for under-hood and body-control module applications.
What is the difference between TPSMB36AHE3_A/I and TPSMB36AHM3_A/I?
The TPSMB36AHE3_A/I and TPSMB36AHM3_A/I share identical electrical specifications, AEC-Q101 qualification, and SMB package. The distinction lies in materials: HE3 uses RoHS-compliant molding compound, while HM3 adds halogen-free compliance (per IEC 61249-2-21) alongside RoHS and AEC-Q101. Both are offered in 13″ tape-and-reel (I-pack), and the TPSMB36AHE3_A/I is selected when halogen-free content is not contractually required.
What is the maximum operating temperature for the TPSMB36AHE3_A/I?
The TPSMB36AHE3_A/I has a maximum junction temperature (TJ) rating of +185 °C, as specified in the "PRIMARY CHARACTERISTICS" table and "MAXIMUM RATINGS" section of the Vishay datasheet. This enables reliable operation in high-ambient environments such as engine compartments or enclosed industrial enclosures, with thermal derating curves provided in Figure 2 for elevated ambient conditions.
Does the TPSMB36AHE3_A/I have polarity marking, and how is it identified?
Yes, the TPSMB36AHE3_A/I is unidirectional and features a visible cathode band - a dark-colored stripe located at one end of the SMB (DO-214AA) package. Per the "MECHANICAL DATA" section, this band identifies the cathode terminal, which must be connected toward the side of the circuit to be protected (e.g., to the power rail), while the anode connects to ground or reference. Correct orientation is essential for proper transient clamping function.
TPSMB36AHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 12A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
TPSMB36AHE3_A/I FAQ
1.How can I place an order for TPSMB36AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB36AHE3_A/I 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 TPSMB36AHE3_A/I reliable?
The price and inventory of TPSMB36AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB36AHE3_A/I is usually 5 days.
3.What payment methods are accepted for TPSMB36AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB36AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB36AHE3_A/I?
TPSMB36AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB36AHE3_A/I 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 TPSMB36AHE3_A/I?
For technical support, including TPSMB36AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB36AHE3_A/I requirements.
6.How does Aetrix verify that TPSMB36AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All TPSMB36AHE3_A/I 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 TPSMB36AHE3_A/I meets industry standards.
7.What is the process for return or replacement of TPSMB36AHE3_A/I?
All TPSMB36AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB36AHE3_A/I, 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 TPSMB36AHE3_A/I part is unused and in its original packaging.
Return procedure for TPSMB36AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB36AHE3_A/I 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 …
