My Inquiry
My Account
Vishay General Semiconductor - Diodes Division TPSMB43AHM3_A/H
- Part No.:
- TPSMB43AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
TPSMB43AHM3_A/H.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,176
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPSMB43AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount PAR® transient voltage suppressor (TVS) diode designed for clamping inductive and lightning-induced transients on power rails and signal lines. It features a 43 V breakdown voltage (VBR), 36.8 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 µs), 10.1 A peak pulse current (IPPM), and 59.3 V clamping voltage (VC) - deployed in automotive sensor protection, industrial I/O interfaces, and telecom power supply surge suppression.
For engineers reviewing the TPSMB43AHM3_A/H datasheet, TPSMB43AHM3_A/H pinout, TPSMB43AHM3_A/H application, or TPSMB43AHM3_A/H equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C maximum junction temperature, SMB (DO-214AA) package compatibility, unidirectional polarity, and halogen-free RoHS-compliant construction per HM3 suffix.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR = 40.9–45.2 V (at IT = 1 mA), it avalanches to limit transient energy. Its low incremental surge resistance ensures stable clamping at VC = 59.3 V under 10.1 A IPPM, with <1 ns response time enabling protection of fast-switching MOSFETs and microcontrollers.
The device uses passivated anisotropic rectifier technology for high reliability under thermal stress, supporting continuous operation from –65 °C to +185 °C. Its MSL Level 1 rating (260 °C peak reflow) and JESD 201 Class 2 whisker resistance confirm suitability for automated SMT assembly in automotive-grade production.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 40.9 / 43.0 / 45.2 V at 1 mA - defines precise avalanche initiation threshold for repeatable clamping behavior |
| VWM | 36.8 V - maximum continuous reverse operating voltage without significant leakage (<1 μA) |
| VC @ IPPM | 59.3 V at 10.1 A (10/1000 µs) - actual clamped voltage seen by protected IC during worst-case surge |
| PPPM | 600 W - peak transient energy absorption capability under standardized surge waveform |
| TJ max. | +185 °C - enables use in under-hood automotive environments and high-power industrial enclosures |
| Package | SMB (DO-214AA) - industry-standard 2-pin SMD outline with 5.59 mm × 4.06 mm footprint and 2.44 mm height |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT |
Pinout & Package
SMB (DO-214AA) package: molded plastic case with matte tin-plated leads, cathode indicated by color band; terminals solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts avalanche current to ground during overvoltage event |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane to complete clamping path |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges without derating at 25 °C |
| 185 °C junction temperature rating | Supports uninterrupted operation in engine control units, motor drives, and industrial PLCs with minimal thermal margin loss |
| Halogen-free, RoHS-compliant HM3 suffix | Fulfills automotive OEM material compliance requirements (e.g., GMW3172, Ford WSS-M99P9999-A1) |
| MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity concerns and allows single-pass reflow in high-volume SMT lines |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on downstream ICs compared to higher-ratio TVS devices |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role: Shunt-type transient suppressor placed between signal line and chassis ground. Use Value: Clamps transients to ≤59.3 V while maintaining <1 μA leakage at 36.8 V, preserving signal integrity and meeting ISO 16750-2 requirements. |
Use Scenario: Safeguarding 24 V DC input terminals of programmable logic controllers (PLCs) and remote I/O modules against field-wiring surges and ESD events. IC Role / Device Role: Primary overvoltage clamp on power rail upstream of DC-DC converters and LDOs. Use Value: Absorbs 600 W pulses without degradation, enabling compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity tests. |
| Telecom Power Supply | Consumer Appliance Motor Control |
Use Scenario: Secondary-side transient suppression on 48 V PoE-powered equipment (e.g., IP cameras, access points) exposed to induced lightning surges. IC Role / Device Role: Standoff-rated TVS across output rail to prevent overvoltage damage to Ethernet PHYs and PMICs. Use Value: 36.8 V VWM avoids false triggering during normal 48 V ±10% regulation, while 59.3 V VC protects 65 V-rated components. |
Use Scenario: Snubbing back-EMF spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role: Freewheeling path for inductive kickback across motor terminals. Use Value: Withstands 75 A IFSM non-repetitive surge and maintains stable clamping after repeated 10/1000 µs events per duty cycle ≤0.01 %. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A-Q | Same VBR/VC specs but SMA package (smaller footprint, lower PPPM = 400 W); not AEC-Q101 qualified | Limited to consumer/industrial use; unsuitable for automotive due to missing qualification and lower surge rating | Select when board space is constrained and automotive qualification is unnecessary |
| TPSMB43AHE3_A/H | Identical electrical specs and SMB package; HE3 suffix indicates RoHS-compliant + AEC-Q101, but not halogen-free | Acceptable for automotive where halogen content is unrestricted; differs only in material composition | Choose if halogen-free requirement is waived and cost optimization is prioritized |
Compared with TPSMB43AHM3_A/H, SMAJ43A-Q offers smaller size but sacrifices 33 % peak power and automotive qualification, while TPSMB43AHE3_A/H matches all performance metrics but lacks halogen-free certification required by Tier 1 OEMs.
Availability
TPSMB43AHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom power supply surge suppression requiring stable component supply across multi-year production cycles.
Supply support for TPSMB43AHM3_A/H 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 high-reliability and automotive-grade solutions.
The TPSMB series belongs to Vishay's PAR® (Protection Against Transients) family, engineered specifically for robust, high-temperature-stable transient suppression in harsh environments including automotive under-hood and industrial motor control systems.
FAQ
What is the maximum clamping voltage of the TPSMB43AHM3_A/H under standard test conditions?
The TPSMB43AHM3_A/H exhibits a maximum clamping voltage (VC) of 59.3 V when subjected to a 10/1000 µs waveform at its rated peak pulse current of 10.1 A. This value is measured per IEC 61000-4-5 and defines the upper voltage limit imposed on protected circuitry during surge events. The TPSMB43AHM3_A/H maintains this clamping performance across its full operating temperature range up to +185 °C junction temperature.
Is the TPSMB43AHM3_A/H qualified for automotive applications?
Yes, the TPSMB43AHM3_A/H is AEC-Q101 qualified, confirming its reliability for automotive electronics. The HM3 suffix denotes halogen-free, RoHS-compliant construction and full qualification per AEC-Q101 stress tests including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing. This makes the TPSMB43AHM3_A/H suitable for engine control, body electronics, and ADAS sensor modules.
What does the "HM3" suffix indicate in TPSMB43AHM3_A/H?
The "HM3" suffix in TPSMB43AHM3_A/H specifies halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from the HE3 version (RoHS-compliant and AEC-Q101 qualified but not halogen-free) and confirms compliance with automotive material standards such as GMW3172 and Ford WSS-M99P9999-A1. The "_A/H" denotes revision A in 7" tape-and-reel packaging (750 units per reel).
How does the TPSMB43AHM3_A/H compare to the TPSMB43AHE3_A/H in terms of specifications?
The TPSMB43AHM3_A/H and TPSMB43AHE3_A/H share identical electrical parameters (VBR, VWM, VC, PPPM, TJ max.), SMB package dimensions, and AEC-Q101 qualification. Their sole difference lies in material composition: HM3 is halogen-free, while HE3 is RoHS-compliant but contains halogens. Both are drop-in replacements electrically and mechanically, but HM3 is mandated where halogen restrictions apply.
What is the thermal derating behavior of the TPSMB43AHM3_A/H above 25 °C ambient?
The TPSMB43AHM3_A/H follows standard thermal derating per Figure 2 in its datasheet: peak pulse power decreases linearly from 600 W at 25 °C to approximately 300 W at 125 °C ambient, based on junction temperature limits. Derating is governed by the device's thermal resistance and mounting pad area (0.2" × 0.2" copper). Full 600 W capability is retained only when TJ ≤ 185 °C, requiring appropriate PCB copper area and airflow in high-temperature deployments.
TPSMB43AHM3_A/H 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):
- 36.8V
- Voltage - Breakdown (Min):
- 40.9V
- Voltage - Clamping (Max) @ Ipp:
- 59.3V
- Current - Peak Pulse (10/1000µs):
- 10.1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
TPSMB43AHM3_A/H FAQ
1.How can I place an order for TPSMB43AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for TPSMB43AHM3_A/H 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 TPSMB43AHM3_A/H reliable?
The price and inventory of TPSMB43AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPSMB43AHM3_A/H is usually 5 days.
3.What payment methods are accepted for TPSMB43AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPSMB43AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPSMB43AHM3_A/H?
TPSMB43AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPSMB43AHM3_A/H 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 TPSMB43AHM3_A/H?
For technical support, including TPSMB43AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPSMB43AHM3_A/H requirements.
6.How does Aetrix verify that TPSMB43AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All TPSMB43AHM3_A/H 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 TPSMB43AHM3_A/H meets industry standards.
7.What is the process for return or replacement of TPSMB43AHM3_A/H?
All TPSMB43AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with TPSMB43AHM3_A/H, 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 TPSMB43AHM3_A/H part is unused and in its original packaging.
Return procedure for TPSMB43AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPSMB43AHM3_A/H 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 …
