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IMH2AT110 Equivalent & Substitute Parts Reference
Part Overview
The Rohm Semiconductor IMH2AT110 is an active surface-mount pre-biased bipolar transistor (BJT) featuring dual NPN configurations in a SC-74, SOT-457 package. It is available in Cut Tape (CT) and Digi-Reel® packaging formats. Engineers may require alternatives for IMH2AT110 due to supply chain constraints, inventory management, or qualification requirements. The identification of suitable substitute models is based strictly on matching electrical, mechanical, and regulatory characteristics.
Substiute Parts
Key Parameters
| Parameter | Main Part (IMH2AT110) |
|---|---|
| Manufacturer | Rohm Semiconductor |
| Category | Transistors, Bipolar (BJT) |
| Transistor Type | 2 NPN - Pre-Biased (Dual) |
| Current - Collector (Ic) (Max) | 100mA |
| Voltage - Collector Emitter Breakdown (Max) | 50V |
| Resistor - Base (R1) | 47kOhms |
| Resistor - Emitter Base (R2) | 47kOhms |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 68 @ 5mA, 5V |
| Vce Saturation (Max) @ Ib, Ic | 300mV @ 500µA, 10mA |
| Current - Collector Cutoff (Max) | 500nA |
| Frequency - Transition | 250MHz |
| Power - Max | 300mW |
| Mounting Type | Surface Mount |
| Package / Case | SC-74, SOT-457 |
| Supplier Device Package | SMT6 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
Substitute Part Grouping Explanation
Substitute parts for IMH2AT110 are determined by strict alignment of electrical and mechanical parameters. The selection criteria include Transistor Type, Maximum Collector Current (Ic), Maximum Collector-Emitter Breakdown Voltage, Base and Emitter Base Resistance values, DC Current Gain, Saturation Voltage, Collector Cutoff Current, Transition Frequency, Maximum Power, Mounting Type, Package / Case, and relevant compliance certifications. Only parts with matching or equivalent specifications in these areas are included as substitutes.
Parameter Comparison
| Parameter | Main Part: IMH2AT110 | Substitute: RN4604(TE85L,F) |
|---|---|---|
| Manufacturer | Rohm Semiconductor | Toshiba Semiconductor and Storage |
| Transistor Type | 2 NPN - Pre-Biased (Dual) | 1 NPN, 1 PNP - Pre-Biased (Dual) |
| Current - Collector (Ic) (Max) | 100mA | 100mA |
| Voltage - Collector Emitter Breakdown (Max) | 50V | 50V |
| Resistor - Base (R1) | 47kOhms | 47kOhms |
| Resistor - Emitter Base (R2) | 47kOhms | 47kOhms |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 68 @ 5mA, 5V | 80 @ 10mA, 5V |
| Vce Saturation (Max) @ Ib, Ic | 300mV @ 500µA, 10mA | 300mV @ 250µA, 5mA |
| Current - Collector Cutoff (Max) | 500nA | 100nA (ICBO) |
| Frequency - Transition | 250MHz | 250MHz |
| Power - Max | 300mW | 300mW |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | SC-74, SOT-457 | SC-74, SOT-457 |
| RoHS Status | ROHS3 Compliant | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| ECCN | EAR99 | EAR99 |
Engineering Selection Recommendations
Both IMH2AT110 and RN4604(TE85L,F) are active and available in surface mount packages with RoHS compliance and MSL 1 classification, supporting unlimited floor life. ECCN designation is EAR99 for both. Selection must be based on required product status and explicit certifications provided.
Frequently Asked Questions (FAQ)
Q: What are the essential criteria for substituting the IMH2AT110 with a different part?
A: Substitution must be determined by identical or equivalent parameters including current rating, voltage rating, resistor values, gain, cutoff current, transition frequency, power rating, mounting type, package/case, and compliance status.
Q: Is the mechanical package identical between IMH2AT110 and RN4604(TE85L,F)?
A: Both parts specify SC-74, SOT-457 surface-mount packages.
Q: Do RoHS and MSL compliance levels match between the main and substitute parts?
A: Both are RoHS compliant and have Moisture Sensitivity Level (MSL) 1.
Q: Can IMH2AT110 be cross-referenced with parts of a different transistor configuration?
A: Only dual pre-biased configurations listed in the parameters are considered; IMH2AT110 is dual NPN, RN4604(TE85L,F) is 1 NPN, 1 PNP.
Q: Should inventory levels influence substitution selection?
A: Substitutes are listed based on parametric compatibility and compliance; inventory values are provided but are not a technical selection criterion.
Q: Are transition frequency and maximum power ratings equivalent among substitutes?
A: Both IMH2AT110 and RN4604(TE85L,F) have 250MHz transition frequency and 300mW maximum power rating.
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