IL252-X009T >
IL252-X009T
Vishay Semiconductor Opto Division
OPTOISO 5.3KV TRANS W/BASE 6SMD
5035 Pcs New Original In Stock
Optoisolator Transistor with Base Output 5300Vrms 1 Channel 6-SMD
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IL252-X009T
5.0 / 5.0 - (201 Ratings)

IL252-X009T

Product Overview

2108918

DiGi Electronics Part Number

IL252-X009T-DG
IL252-X009T

Description

OPTOISO 5.3KV TRANS W/BASE 6SMD

Inventory

5035 Pcs New Original In Stock
Optoisolator Transistor with Base Output 5300Vrms 1 Channel 6-SMD
Quantity
Minimum 1

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IL252-X009T Technical Specifications

Category Optoisolators, Transistor, Photovoltaic Output Optoisolators

Packaging -

Series -

Product Status Obsolete

Number of Channels 1

Voltage - Isolation 5300Vrms

Current Transfer Ratio (Min) 100% @ 10mA

Current Transfer Ratio (Max) -

Turn On / Turn Off Time (Typ) -

Rise / Fall Time (Typ) -

Input Type AC, DC

Output Type Transistor with Base

Voltage - Output (Max) 30V

Current - Output / Channel -

Voltage - Forward (Vf) (Typ) 1.2V

Current - DC Forward (If) (Max) 60 mA

Vce Saturation (Max) 400mV

Operating Temperature -55°C ~ 100°C

Mounting Type Surface Mount

Package / Case 6-SMD, Gull Wing

Supplier Device Package 6-SMD

Base Product Number IL252

Datasheet & Documents

HTML Datasheet

IL252-X009T-DG

Environmental & Export Classification

RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
ECCN EAR99
HTSUS 8541.49.8000

Additional Information

Standard Package
1,000

Alternative Parts

View Details
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
H11AA1SM
onsemi
1706
H11AA1SM-DG
0.2382
MFR Recommended
H11AA4SR2VM
onsemi
17239
H11AA4SR2VM-DG
0.2254
MFR Recommended
H11AA1SR2VM
onsemi
2253
H11AA1SR2VM-DG
0.2839
MFR Recommended
H11AA1SMT&R
Isocom Components 2004 LTD
728
H11AA1SMT&R-DG
0.2671
MFR Recommended
H11AA4SM
onsemi
12490
H11AA4SM-DG
0.0024
MFR Recommended

Reviews

5.0/5.0-(Show up to 5 Ratings)
天***之涯
Dec 02, 2025
5.0
每次收到商品都很滿意,快遞速度令人讚賞,售後服務更是令人放心。
Liv***Loom
Dec 02, 2025
5.0
DiGi Electronics' commitment to quality and customer service is evident in everything they do.
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Dec 02, 2025
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Dec 02, 2025
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The website’s multilingual options make shopping accessible for international customers.
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Dec 02, 2025
5.0
They provide reliable after-sales service, building a trustworthy relationship over the years.
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Dec 02, 2025
5.0
Affordable prices and an effortless shopping experience—DiGi is my go-to electronics supplier.
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Dec 02, 2025
5.0
I've never experienced delays; their shipping process is consistently stable and trustworthy.
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Frequently Asked Questions (FAQ)

Can the IL252-X009T optoisolator be safely used to replace a failed H11AA1SM in a 230VAC line monitoring circuit, and what design risks should I consider due to its obsolete status?

While the IL252-X009T shares similar isolation voltage (5300Vrms) and AC/DC input compatibility with the H11AA1SM, direct replacement requires careful evaluation. The IL252-X009T uses a transistor-with-base output, which may require a base resistor for stability in high-noise environments—unlike the H11AA1SM’s phototriac output. Additionally, since the IL252-X009T is obsolete, long-term supply chain risk is high; consider qualifying a modern alternative like the VO617A or CNY17-4 for new designs. Verify timing and CTR matching under your actual load conditions to avoid signal integrity issues.

What are the key reliability concerns when using the IL252-X009T in industrial environments operating near its -55°C to 100°C temperature range, especially regarding current transfer ratio (CTR) degradation over time?

The IL252-X009T’s CTR is specified at 100% minimum @ 10mA, but CTR degrades significantly with temperature cycling and operational aging—particularly near the upper limit of 100°C. In industrial settings with thermal swings, this can lead to premature failure or erratic logic levels. To mitigate risk, derate the forward current (If) below 40mA and ensure adequate PCB thermal management. Monitor output saturation voltage (Vce(sat)) during validation; if it exceeds 400mV under load, the device may be nearing end-of-life due to internal LED or phototransistor degradation.

How does the IL252-X009T compare to the H11AA4SR2VM for isolating digital signals in a 24VDC control system, and which is better suited for high-speed switching applications?

The IL252-X009T is not ideal for high-speed digital isolation due to its unspecified turn-on/off and rise/fall times, which are typically slower than modern alternatives. In contrast, the H11AA4SR2VM, while also an older part, offers faster response in triac-based configurations suited for AC loads. For 24VDC digital signals requiring speed and reliability, neither is optimal—consider replacing both with a digital isolator like the Silicon Labs Si8711BD or Toshiba TLP2361, which offer >100kbps data rates and reinforced isolation. The IL252-X009T should only be retained if legacy compatibility or base-access output biasing is required.

Is it safe to operate the IL252-X009T at its maximum forward current of 60mA in a compact SMD design with limited copper pour, and what thermal risks should I anticipate?

Operating the IL252-X009T at 60mA forward current in a thermally constrained 6-SMD package significantly increases junction temperature, especially with minimal PCB copper for heat dissipation. This accelerates LED degradation and reduces MTBF. As a best practice, limit If to ≤40mA and provide a thermal relief pad connected to a ground plane. Use infrared thermography during prototype testing to ensure the package temperature stays well below 100°C under worst-case ambient conditions. Exceeding thermal limits can cause latent failures that manifest only after months in the field.

Given that the IL252-X009T is obsolete and RoHS3 compliant, what are the implications for redesigning a legacy medical device that currently uses this part, and how should I approach component substitution?

The obsolescence of the IL252-X009T poses serious compliance and lifecycle risks for medical devices, where long-term availability and regulatory traceability are critical. Although RoHS3 compliant, its discontinuation means future re-certification may be required if stock runs out. Begin a drop-in evaluation of listed substitutes like the H11AA1SR2VM, but prioritize modern medical-grade optocouplers such as the Broadcom ACPL-M71T or Vishay VO618A, which offer higher CTR stability, lower propagation delay, and guaranteed supply. Perform full EMC, isolation withstand, and biocompatibility testing on any replacement to ensure continued FDA/IEC 60601 compliance.

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