7M-25.000MDHV-T Equivalent & Substitute Parts

Part Overview

The 7M-25.000MDHV-T is a 25 MHz fundamental mode crystal oscillator manufactured by TXC CORPORATION. This surface mount device operates across the industrial temperature range of -40°C to 85°C with a frequency tolerance of ±20ppm and load capacitance of 8pF. The part is RoHS compliant, MSL 1 rated, and currently in active production status with 1143 pieces in stock. Substitute parts are identified when equivalent frequency, tolerance, operating mode, and temperature specifications are maintained while accommodating variations in load capacitance and ESR characteristics within acceptable circuit design parameters.

Key Parameters

Parameter	Value	Unit
Manufacturer Part Number	7M-25.000MDHV-T	—
Manufacturer	TXC CORPORATION	—
Frequency	25	MHz
Frequency Tolerance	±20	ppm
Frequency Stability	±30	ppm
Load Capacitance	8	pF
ESR (Equivalent Series Resistance)	60	Ohms
Operating Mode	Fundamental	—
Operating Temperature Range	-40 to 85	°C
Mounting Type	Surface Mount	—
Package / Case	4-SMD, No Lead	—
Size / Dimension	3.20 x 2.50	mm
Height - Seated (Max)	0.80	mm
RoHS Status	RoHS Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—
REACH Status	REACH Unaffected	—

Substitute Part Grouping Explanation

Substitution of the 7M-25.000MDHV-T is determined by strict equivalence in the following critical parameters:

Mandatory Equivalence Parameters:

Frequency: 25 MHz
Frequency Tolerance: ±20ppm
Frequency Stability: ±30ppm
Operating Mode: Fundamental
Operating Temperature Range: -40°C to 85°C
Mounting Type: Surface Mount
Package / Case: 4-SMD, No Lead

Allowable Variation Parameters:

Load Capacitance: 8pF to 10pF (circuit design dependent)
ESR: 40 to 100 Ohms (within circuit impedance specifications)
Physical Dimensions: Minor variations acceptable within PCB layout constraints
Height: Up to 0.80mm maximum seated height

All identified substitute parts maintain the mandatory equivalence parameters. Variations in load capacitance and ESR are permissible when the receiving circuit is designed to accommodate these specifications. Physical dimension differences require verification against PCB footprint and assembly clearance requirements.

Parameter Comparison

Parameter	7M-25.000MDHV-T (TXC)	ABM10-25.000MHZ-D30-T3 (Abracon)	ECS-250-8-33-JGN-TR (ECS)	IXA12-HF5F10-25.000MHZ (ILSI)	RH100-25.000-10-F-2030-EXT-TR (Raltron)
Frequency	25 MHz	25 MHz	25 MHz	25 MHz	25 MHz
Frequency Tolerance	±20ppm	±20ppm	±20ppm	±20ppm	±20ppm
Frequency Stability	±30ppm	±30ppm	±30ppm	±30ppm	±30ppm
Load Capacitance	8pF	10pF	8pF	10pF	10pF
ESR	60 Ohms	100 Ohms	40 Ohms	100 Ohms	60 Ohms
Operating Mode	Fundamental	Fundamental	Fundamental	Fundamental	Fundamental
Operating Temperature	-40 to 85°C	-40 to 85°C	-40 to 85°C	-40 to 85°C	-40 to 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead
Size / Dimension (mm)	3.20 x 2.50	2.50 x 2.00	3.20 x 2.50	2.00 x 1.60	3.20 x 2.50
Height - Seated (Max)	0.80mm	0.70mm	0.80mm	0.55mm	0.80mm
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	Not Applicable	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

ECS-250-8-33-JGN-TR (ECS Inc.) provides the closest electrical match to the 7M-25.000MDHV-T. This substitute maintains identical load capacitance (8pF) and physical dimensions (3.20mm x 2.50mm), with lower ESR (40 Ohms versus 60 Ohms). The part is ROHS3 compliant and carries MSL 1 rating. This substitute is suitable for direct replacement in applications where the circuit design accommodates the reduced ESR specification. Inventory availability is 28353 pieces.

RH100-25.000-10-F-2030-EXT-TR (Raltron Electronics) maintains identical ESR (60 Ohms) and physical dimensions to the main part, with load capacitance increased to 10pF. This substitute is appropriate for circuits designed with 10pF load capacitance specification. ROHS3 compliance and MSL 1 rating are confirmed. Inventory availability is 7948 pieces.

ABM10-25.000MHZ-D30-T3 (Abracon LLC) and IXA12-HF5F10-25.000MHZ (ILSI) both specify 10pF load capacitance with 100 Ohms ESR. These substitutes are suitable for applications where the circuit design accommodates these electrical parameters. The IXA12 series carries AEC-Q200 automotive qualification. Inventory availability is 2882 pieces (Abracon) and 1581 pieces (ILSI).

All substitute parts maintain active production status, full RoHS and REACH compliance, and equivalent frequency, tolerance, stability, operating mode, and temperature specifications.

Frequently Asked Questions (FAQ)

Q: Can the ECS-250-8-33-JGN-TR be used as a direct replacement for the 7M-25.000MDHV-T?

A: Yes. Both parts specify 25 MHz frequency, ±20ppm tolerance, ±30ppm stability, 8pF load capacitance, fundamental operating mode, -40°C to 85°C temperature range, and identical 3.20mm x 2.50mm physical dimensions. The ECS part features lower ESR (40 Ohms versus 60 Ohms), which is acceptable in most circuit applications. Verify circuit design specifications for ESR compatibility.

Q: What is the difference between 8pF and 10pF load capacitance substitutes?

A: Load capacitance specifies the external capacitance value the crystal oscillator circuit must present for proper frequency operation. The 7M-25.000MDHV-T requires 8pF load capacitance. Substitutes with 10pF load capacitance (ABM10, IXA12, RH100 series) require the receiving circuit to be designed for 10pF load capacitance. Mismatched load capacitance results in frequency deviation. Verify circuit design specifications before substitution.

Q: Does ESR variation affect circuit performance?

A: ESR (Equivalent Series Resistance) affects crystal oscillator startup time and power consumption. The 7M-25.000MDHV-T specifies 60 Ohms ESR. The ECS-250-8-33-JGN-TR specifies 40 Ohms (lower), while ABM10 and IXA12 specify 100 Ohms (higher). Lower ESR improves startup characteristics; higher ESR increases power consumption. Verify circuit design specifications for ESR compatibility before substitution.

Q: Are physical dimension differences critical?

A: Physical dimensions affect PCB footprint compatibility and assembly clearance. The 7M-25.000MDHV-T measures 3.20mm x 2.50mm with 0.80mm maximum height. The IXA12-HF5F10-25.000MHZ measures 2.00mm x 1.60mm with 0.55mm height. Smaller dimensions may fit existing footprints but require PCB layout verification. Larger dimensions require footprint redesign. Verify PCB layout and assembly clearance requirements before substitution.

Q: What is the significance of RoHS3 compliance versus RoHS compliance?

A: Both RoHS and ROHS3 designations indicate compliance with Restriction of Hazardous Substances regulations. ROHS3 represents the current regulatory standard. All identified substitute parts carry ROHS3 compliance. The main part carries RoHS compliance. Both are acceptable for applications requiring hazardous substance restriction compliance.

Q: Can the IXA12-HF5F10-25.000MHZ be used in automotive applications?

A: The IXA12-HF5F10-25.000MHZ carries AEC-Q200 automotive qualification. This certification indicates the part meets automotive industry reliability and performance standards. The 7M-25.000MDHV-T does not carry AEC-Q200 designation. If automotive qualification is required, the IXA12 series is suitable provided circuit design accommodates 10pF load capacitance and 100 Ohms ESR specifications.

Q: What packaging format differences exist among the substitutes?

A: The 7M-25.000MDHV-T is supplied in standard packaging (format not specified). ABM10, ECS-250-8-33, and RH100 are supplied in Tape & Reel (TR) format for automated assembly. The IXA12 is supplied in Cut Tape (CT) format. Tape & Reel format is standard for high-volume production; Cut Tape format is typical for lower-volume or prototype applications. Verify procurement and assembly requirements before substitution.

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